El hassan Mayad - Profile on Academia.edu (original) (raw)
Soil nematode abundance and functional group by El hassan Mayad
as the most abundant animals on earth, nematodes are a dominant component of the soil community. ... more as the most abundant animals on earth, nematodes are a dominant component of the soil community. they play critical roles in regulating biogeochemical cycles and vegetation dynamics within and across landscapes and are an indicator of soil biological activity. Here, we present a comprehensive global dataset of soil nematode abundance and functional group composition. This dataset includes 6,825 georeferenced soil samples from all continents and biomes. For geospatial mapping purposes these samples are aggregated into 1,933 unique 1-km pixels, each of which is linked to 73 global environmental covariate data layers. Altogether, this dataset can help to gain insight into the spatial distribution patterns of soil nematode abundance and community composition, and the environmental drivers shaping these patterns.
Applications of New Rhizobacteria Pseudomonas Isolates in Agroecology via Fundamental Processes Complementing Plant Growth, 2019
Pseudomonas isolates have frequently been isolated from the rhizosphere of plants, and several of... more Pseudomonas isolates have frequently been isolated from the rhizosphere of plants, and several of them have been reported as plant growth-promoting rhizobacteria. In the present work, tomato (Solanum lycopersicum) seeds were germinated in greenhouse conditions, and the seedling height, length of plants, collar diameter and number of leaves were measured from plants grown in soil inoculated by bacterial isolates. Pseudomonas isolates were isolated from the rhizosphere. We used the newman-Keuls test to ascertain pairwise differences. Isolates were identified as a new Pseudomonas species by rpoD gene sequencing. the results showed that isolates of Pseudomonas sp. (Q6B) increased seed germination (P = 0.01); Pseudomonas sp. (Q6B, Q14B, Q7B, Q1B and Q13B) also promoted seedling height (P = 0.01). All five isolates promoted plant length and enlarged the collar diameter (P = 0.01). Pseudomonas sp. (Q1B) also increased leaf number (P = 0.01). The investigation found that Pseudomonas isolates were able to solubilize phosphate, produce siderophores, ammonia, and indole-3-acetic acid and colonize the roots of tomato plants. This study shows that these five novel Pseudomonas sp. isolates can be effective new plant growth-promoting rhizobacteria.
Pseudomonas isolates have frequently been isolated from the rhizosphere of plants, and several of... more Pseudomonas isolates have frequently been isolated from the rhizosphere of plants, and several of them have been reported as plant growth-promoting rhizobacteria. In the present work, tomato (Solanum lycopersicum) seeds were germinated in greenhouse conditions, and the seedling height, length of plants, collar diameter and number of leaves were measured from plants grown in soil inoculated by bacterial isolates. Pseudomonas isolates were isolated from the rhizosphere. We used the newman-Keuls test to ascertain pairwise differences. Isolates were identified as a new Pseudomonas species by rpoD gene sequencing. the results showed that isolates of Pseudomonas sp. (Q6B) increased seed germination (P = 0.01); Pseudomonas sp. (Q6B, Q14B, Q7B, Q1B and Q13B) also promoted seedling height (P = 0.01). All five isolates promoted plant length and enlarged the collar diameter (P = 0.01). Pseudomonas sp. (Q1B) also increased leaf number (P = 0.01). The investigation found that Pseudomonas isolates were able to solubilize phosphate, produce siderophores, ammonia, and indole-3-acetic acid and colonize the roots of tomato plants. This study shows that these five novel Pseudomonas sp. isolates can be effective new plant growth-promoting rhizobacteria.
Composting of tomato plant residues: improvement of composting process and compost quality by integration of sheep manure, 2019
In Morocco, greenhouse tomato production is a source of organic waste. This biomass constitutes a... more In Morocco, greenhouse tomato production is a source of organic waste. This biomass constitutes an important source of carbon, macronutrients (NPK), and microelements (Mn, Zn, Cu, and Fe). This research aims to investigate the composting process of tomato plant residues by sheep manure integration at different proportions and its effect on organic matter mineralization and humification, nitrogen dynamics, and agronomic value of the final compost. The composting process was run in an experimental conditions using two different mixing ratios set up on volume basis: R1 (2:3 tomato plant residues "TPR" + 1:3 sheep manure "SM") and R2 (1:3 tomato plant residues "TPR" + 2:3 sheep manure "SM") and two controls TRP (1:1 tomato plant residues "TPR") and SM (1:1 sheep manure). Parameters such as temperature, pH, EC, C:N ratio, mineral nitrogen, and macroelements (phosphorus and potassium) were measured for a period of 60 days. At the end of the experiment , compost humification ratio and compost quality were assessed. Results showed that when TPR is composted alone, nitrogen loss and lack of aeration were observed due to a lower C:N ratio and higher moisture content. The addition of sheep manure in treatment R2 not only resulted in reaching rapidly thermophile phase and maintaining it for longer periods, but also it reduced N loss, decreased electrical conductivity, and increased concentrations of humic acid and macroelements. The present results provide opportunities to improve composting of TPR as well as the agronomic quality of the produced compost by sheep manure integration.
Peganum harmala a été beaucoup étudiée pour ses activités pharmacologiques mais à notre connaissa... more Peganum harmala a été beaucoup étudiée pour ses activités pharmacologiques mais à notre connaissance c'est la première fois qu'une étude est consacrée à ses effets sur un insecte en particulier Schistocerca gregaria, espèce d'importance capitale.
Chez Peganum harmala L., une germination optimale et homogène a été recherchée. Une quantificatio... more Chez Peganum harmala L., une germination optimale et homogène a été recherchée. Une quantification des flavonoides totaux dans les tiges et les feuilles et une analyse sur chromatographie sur couche mince des alcaloïdes majeurs dans la racine, la tige et les feuilles à différents stades phénologiques particuliers ont été également effectuées. La germination des graines de Peganum harmala L. est affectée très significativement aussi bien par la température que par la taille des graines. Une germination optimale et homogène est réalisée à une température de 28°C avec des graines dont la taille est comprise entre 1,25 et 1,8 mm. L'étude des métabolites secondaires a montré que les flavonoides sont présents en faible quantité. Leur variation au cours du développement de la plante est moins importante dans la tige par rapport aux feuilles, qui en contiennent plus, quel que soit le stade. En ce qui concerne les alcaloïdes, leur profil diffère d'un organe à l'autre, mais reste généralement invariable dans chaque organe sur le plan qualitatif le long des différents stades analysés. La racine est l'organe le plus riche qualitativement et quantitativement en alcaloïdes prospectés, suivie des feuilles et ensuite les tiges. L'harmine est le composé dominant de la plante, il est présent dans tous les organes, l'harmalol est aussi présent. Alors que l'harmane est absent quel que soit l'organe et le stade prospectés.
Plant-parasitic nematodes are a major obstacle to sustainable banana production in Morocco. With ... more Plant-parasitic nematodes are a major obstacle to sustainable banana production in Morocco. With rarefaction of efficient nematicide, safe and alternative methods need to be developed. This research aims at evaluating the efficiency of some bioproducts: Biocompost (B), Ricinus communis Powder (RP), combined Biocompost with R. communis Powder (RP + B) and a bionematicide based on Paecilomyces lilacinus commercialised as Nemacont (N) against Meloidogyne javanica. All the mentioned treatments not only reduced root knot nematode density and roots gall index significantly, but also improved plant growth. The R. communis powder is the most efficient biological product on M. javanica population suppression and on banana plant growth enhancing.
Natural products from plant origin have been tested for their potential to develop viable compone... more Natural products from plant origin have been tested for their potential to develop viable components of plant parasitic nematode management strategies especially against harmala seed evaluated in pot experiments when they are used as soil amendment damage to melon crops, but also improves significantly growth parameters except for the emulsified oil of harmala which proved a phytotoxic effect although it gave a complete suppression of extract and the seeds powder are among the less phytotoxic substances, which are efficient against these pathogens. harmala-seed-based-products have a potential antinematodes effect against component of an integrated management syste
The analysis of major Peganum harmala alkaloids (harmaline, harmine, harmol and harmalol) has sho... more The analysis of major Peganum harmala alkaloids (harmaline, harmine, harmol and harmalol) has shown that the content of these secondary metabolites depends on the plant development stage. The qualitative and quantitative profile of major alkaloids change significantly between stems, leaves and roots. The roots and seeds are the richest and most diversified organs in these metabolites. The concentration of the major alkaloids in all organs increases during the first three weeks and stabilizes at a constant level during vegetative growth phase and then decline at the beginning of flowering. On the scale of the whole plant, major alkaloids concentration of P. harmala varies with the developmental stage of the plant between 21.16 and 26.96 mg/g and harmine remains the most abundant molecule. Optimum exploitation of these natural products from the P. harmala plant is possible if the harvest of plant material occurs during the vegetative growth phase and at the appropriate stage for the richest organ.
Papers by El hassan Mayad
Topics in two-body hadronic decays of D mesons
Journal of Plant Protection Research, 2018
The two-spotted spider mite (Tetranychus urticae Koch) is an important pest of many horticultural... more The two-spotted spider mite (Tetranychus urticae Koch) is an important pest of many horticultural crops. A study was conducted to evaluate the effect of three fluorescent Pseudomonas isolates obtained from rhizospheric soil of tomato (Solanum lycopersicon) in Agadir, Morocco: Q110B, Q036B and Q172B, as potential biological control agents for T. urticae. Both acaricide and repellent activities were assessed on homogenous adult mites. The acaricidal activity test evaluated five concentrations of bacterial suspensions: 0 (control), 102, 104, 106, 108, and 1010 cfu · ml−1, while only the 1010 cfu ∙ ml−1 concentration of each bacterium was used for the repellent bioassay. The mortality rate and repellentindex were recorded 24, 48 and 72 h after application. Results indicated that the survival rate of T. urticae was reduced (p ≤ 0.01) by all three bacterial isolates compared to control. Within the 24–72 h time period the mortality rates ranged from 8 to 87%, 16 to 99%, and 13 to 89%, for ...
The value of simulations characterizing classes of symbiosis
Expert Systems in Finance, 2019
Sustainability
Free-living nematodes have beneficial effects on plant growth and nutrition. Exploring how agricu... more Free-living nematodes have beneficial effects on plant growth and nutrition. Exploring how agricultural practices modulate these beneficial effects is still challenging. A study was conducted in Ferralsols from Madagascar from one unmanaged grassland and 16 upland rainfed rice fields, representative of different agricultural practices: rotation, agroforestry and monoculture. Intact soil cores in plastic cylinders were sampled in the field to assess the effects of agricultural practices on changes in plant growth and nutrition induced by the presence of bacterial-feeding nematodes. The soil cores were fumigated to kill the nematodes and moistened with a filtered fresh soil suspension containing only microbial cells. A rice seed was introduced in the core, which was then incubated under natural climatic conditions for 40 days with or without inoculation of the bacterial-feeding nematode Acrobeloides sp. The inoculation of the nematodes induced lower, similar or higher plant biomass an...
Environmental Science and Pollution Research
Emergent horizons and biodynamic interactions occur within extremes of biological diversity, chem... more Emergent horizons and biodynamic interactions occur within extremes of biological diversity, chemical potential in soil and atmospheric/climatic parameters, and social inclusion. These give us the definitions required for geographical partitioning of lands to enable the highest protection advisory of the United Nations Educational, Scientific and Cultural Organization (UNESCO) bordering bodies. The international treaty of the Hague Convention for the Protection of Cultural Property in the Event of Armed Conflict, formed in 1954, links UNESCO sites as being crucial to national sustainable development. Sustainable development benefits international industry links with a diverse range of natural product potential. The papers presented in this special edition arose following a call for sessions entitled "Horizons-the good, bad and ugly of extreme geographical borders," which were held during the Royal Geographical Society (with the Institute of British Geographers) Annual International Conference 2021 under the theme of "Borders, borderlands and bordering." Contributions to the special issue detail pivotal elements which maintain ecological and social structures, in Morocco, Iran, and on a wider, global scale. Biological strategies, genetic interactions and different physiological growth forms generate ecological tapestries. We approach functions that assist in
Environmental Science and Pollution Research
The coastal and subcoastal areas of west-central Morocco (Safi to Draa River, the Souss Valley, a... more The coastal and subcoastal areas of west-central Morocco (Safi to Draa River, the Souss Valley, and the southern part of the western High Atlas and northern and southern slopes of the western Anti-Atlas) are characterized by typical Infra-Mediterranean vegetation ranking them amongst the important of the remarkable borderlands of North Africa. The flora is determined by complex historical and environmental factors occurring since the Tertiary period. The originality of this sector is due to the presence of the argan tree (Argania spinosa (L.) Skeels), Moroccan gum (Acacia gummifera Willd), olive trees (Olea europaea L. subsp. maroccana (Greuter & Burdet) P. Vargas & al.), a thermophilic flora adapted to an arid climate with several endemic species. This flora constitutes the final barrier against the desert and is of environmental and socioeconomical interest. Leaves and fruits provide forage material, while wood is used for fuel. Argan fruits are collected for their oily constitutes and for nutritional, cosmetic, and medicinal properties. Additionally, many species of Argan ecosystems are used in medicine and cosmetics. Recognizing its ecological value and local economic importance, the Argan region was declared a UNESCO Biosphere Reserve in 1998. Despite their biogeographical, historical, and socioeconomic value, vegetation structures in west-central Morocco are vulnerable and threatened by human activities. They exhibit high levels of degradation due to increasing clearance, overgrazing, and overexploitation. The area requires high conservation priority and sustainable management strategies for key species and genetic diversity.
Harmonics, evolutionary generators, DANCE, and HEAR—functional dimensions
Environmental Science and Pollution Research
Water purification plantations for oil and gas industries in Iran
Environmental Science and Pollution Research
Phytoparasitic nematodes of organic vegetables in the Argan Biosphere of Souss-Massa (Southern Morocco)
Environmental Science and Pollution Research
Environmental Science and Pollution Research
as the most abundant animals on earth, nematodes are a dominant component of the soil community. ... more as the most abundant animals on earth, nematodes are a dominant component of the soil community. they play critical roles in regulating biogeochemical cycles and vegetation dynamics within and across landscapes and are an indicator of soil biological activity. Here, we present a comprehensive global dataset of soil nematode abundance and functional group composition. This dataset includes 6,825 georeferenced soil samples from all continents and biomes. For geospatial mapping purposes these samples are aggregated into 1,933 unique 1-km pixels, each of which is linked to 73 global environmental covariate data layers. Altogether, this dataset can help to gain insight into the spatial distribution patterns of soil nematode abundance and community composition, and the environmental drivers shaping these patterns.
Applications of New Rhizobacteria Pseudomonas Isolates in Agroecology via Fundamental Processes Complementing Plant Growth, 2019
Pseudomonas isolates have frequently been isolated from the rhizosphere of plants, and several of... more Pseudomonas isolates have frequently been isolated from the rhizosphere of plants, and several of them have been reported as plant growth-promoting rhizobacteria. In the present work, tomato (Solanum lycopersicum) seeds were germinated in greenhouse conditions, and the seedling height, length of plants, collar diameter and number of leaves were measured from plants grown in soil inoculated by bacterial isolates. Pseudomonas isolates were isolated from the rhizosphere. We used the newman-Keuls test to ascertain pairwise differences. Isolates were identified as a new Pseudomonas species by rpoD gene sequencing. the results showed that isolates of Pseudomonas sp. (Q6B) increased seed germination (P = 0.01); Pseudomonas sp. (Q6B, Q14B, Q7B, Q1B and Q13B) also promoted seedling height (P = 0.01). All five isolates promoted plant length and enlarged the collar diameter (P = 0.01). Pseudomonas sp. (Q1B) also increased leaf number (P = 0.01). The investigation found that Pseudomonas isolates were able to solubilize phosphate, produce siderophores, ammonia, and indole-3-acetic acid and colonize the roots of tomato plants. This study shows that these five novel Pseudomonas sp. isolates can be effective new plant growth-promoting rhizobacteria.
Pseudomonas isolates have frequently been isolated from the rhizosphere of plants, and several of... more Pseudomonas isolates have frequently been isolated from the rhizosphere of plants, and several of them have been reported as plant growth-promoting rhizobacteria. In the present work, tomato (Solanum lycopersicum) seeds were germinated in greenhouse conditions, and the seedling height, length of plants, collar diameter and number of leaves were measured from plants grown in soil inoculated by bacterial isolates. Pseudomonas isolates were isolated from the rhizosphere. We used the newman-Keuls test to ascertain pairwise differences. Isolates were identified as a new Pseudomonas species by rpoD gene sequencing. the results showed that isolates of Pseudomonas sp. (Q6B) increased seed germination (P = 0.01); Pseudomonas sp. (Q6B, Q14B, Q7B, Q1B and Q13B) also promoted seedling height (P = 0.01). All five isolates promoted plant length and enlarged the collar diameter (P = 0.01). Pseudomonas sp. (Q1B) also increased leaf number (P = 0.01). The investigation found that Pseudomonas isolates were able to solubilize phosphate, produce siderophores, ammonia, and indole-3-acetic acid and colonize the roots of tomato plants. This study shows that these five novel Pseudomonas sp. isolates can be effective new plant growth-promoting rhizobacteria.
Composting of tomato plant residues: improvement of composting process and compost quality by integration of sheep manure, 2019
In Morocco, greenhouse tomato production is a source of organic waste. This biomass constitutes a... more In Morocco, greenhouse tomato production is a source of organic waste. This biomass constitutes an important source of carbon, macronutrients (NPK), and microelements (Mn, Zn, Cu, and Fe). This research aims to investigate the composting process of tomato plant residues by sheep manure integration at different proportions and its effect on organic matter mineralization and humification, nitrogen dynamics, and agronomic value of the final compost. The composting process was run in an experimental conditions using two different mixing ratios set up on volume basis: R1 (2:3 tomato plant residues "TPR" + 1:3 sheep manure "SM") and R2 (1:3 tomato plant residues "TPR" + 2:3 sheep manure "SM") and two controls TRP (1:1 tomato plant residues "TPR") and SM (1:1 sheep manure). Parameters such as temperature, pH, EC, C:N ratio, mineral nitrogen, and macroelements (phosphorus and potassium) were measured for a period of 60 days. At the end of the experiment , compost humification ratio and compost quality were assessed. Results showed that when TPR is composted alone, nitrogen loss and lack of aeration were observed due to a lower C:N ratio and higher moisture content. The addition of sheep manure in treatment R2 not only resulted in reaching rapidly thermophile phase and maintaining it for longer periods, but also it reduced N loss, decreased electrical conductivity, and increased concentrations of humic acid and macroelements. The present results provide opportunities to improve composting of TPR as well as the agronomic quality of the produced compost by sheep manure integration.
Peganum harmala a été beaucoup étudiée pour ses activités pharmacologiques mais à notre connaissa... more Peganum harmala a été beaucoup étudiée pour ses activités pharmacologiques mais à notre connaissance c'est la première fois qu'une étude est consacrée à ses effets sur un insecte en particulier Schistocerca gregaria, espèce d'importance capitale.
Chez Peganum harmala L., une germination optimale et homogène a été recherchée. Une quantificatio... more Chez Peganum harmala L., une germination optimale et homogène a été recherchée. Une quantification des flavonoides totaux dans les tiges et les feuilles et une analyse sur chromatographie sur couche mince des alcaloïdes majeurs dans la racine, la tige et les feuilles à différents stades phénologiques particuliers ont été également effectuées. La germination des graines de Peganum harmala L. est affectée très significativement aussi bien par la température que par la taille des graines. Une germination optimale et homogène est réalisée à une température de 28°C avec des graines dont la taille est comprise entre 1,25 et 1,8 mm. L'étude des métabolites secondaires a montré que les flavonoides sont présents en faible quantité. Leur variation au cours du développement de la plante est moins importante dans la tige par rapport aux feuilles, qui en contiennent plus, quel que soit le stade. En ce qui concerne les alcaloïdes, leur profil diffère d'un organe à l'autre, mais reste généralement invariable dans chaque organe sur le plan qualitatif le long des différents stades analysés. La racine est l'organe le plus riche qualitativement et quantitativement en alcaloïdes prospectés, suivie des feuilles et ensuite les tiges. L'harmine est le composé dominant de la plante, il est présent dans tous les organes, l'harmalol est aussi présent. Alors que l'harmane est absent quel que soit l'organe et le stade prospectés.
Plant-parasitic nematodes are a major obstacle to sustainable banana production in Morocco. With ... more Plant-parasitic nematodes are a major obstacle to sustainable banana production in Morocco. With rarefaction of efficient nematicide, safe and alternative methods need to be developed. This research aims at evaluating the efficiency of some bioproducts: Biocompost (B), Ricinus communis Powder (RP), combined Biocompost with R. communis Powder (RP + B) and a bionematicide based on Paecilomyces lilacinus commercialised as Nemacont (N) against Meloidogyne javanica. All the mentioned treatments not only reduced root knot nematode density and roots gall index significantly, but also improved plant growth. The R. communis powder is the most efficient biological product on M. javanica population suppression and on banana plant growth enhancing.
Natural products from plant origin have been tested for their potential to develop viable compone... more Natural products from plant origin have been tested for their potential to develop viable components of plant parasitic nematode management strategies especially against harmala seed evaluated in pot experiments when they are used as soil amendment damage to melon crops, but also improves significantly growth parameters except for the emulsified oil of harmala which proved a phytotoxic effect although it gave a complete suppression of extract and the seeds powder are among the less phytotoxic substances, which are efficient against these pathogens. harmala-seed-based-products have a potential antinematodes effect against component of an integrated management syste
The analysis of major Peganum harmala alkaloids (harmaline, harmine, harmol and harmalol) has sho... more The analysis of major Peganum harmala alkaloids (harmaline, harmine, harmol and harmalol) has shown that the content of these secondary metabolites depends on the plant development stage. The qualitative and quantitative profile of major alkaloids change significantly between stems, leaves and roots. The roots and seeds are the richest and most diversified organs in these metabolites. The concentration of the major alkaloids in all organs increases during the first three weeks and stabilizes at a constant level during vegetative growth phase and then decline at the beginning of flowering. On the scale of the whole plant, major alkaloids concentration of P. harmala varies with the developmental stage of the plant between 21.16 and 26.96 mg/g and harmine remains the most abundant molecule. Optimum exploitation of these natural products from the P. harmala plant is possible if the harvest of plant material occurs during the vegetative growth phase and at the appropriate stage for the richest organ.
Topics in two-body hadronic decays of D mesons
Journal of Plant Protection Research, 2018
The two-spotted spider mite (Tetranychus urticae Koch) is an important pest of many horticultural... more The two-spotted spider mite (Tetranychus urticae Koch) is an important pest of many horticultural crops. A study was conducted to evaluate the effect of three fluorescent Pseudomonas isolates obtained from rhizospheric soil of tomato (Solanum lycopersicon) in Agadir, Morocco: Q110B, Q036B and Q172B, as potential biological control agents for T. urticae. Both acaricide and repellent activities were assessed on homogenous adult mites. The acaricidal activity test evaluated five concentrations of bacterial suspensions: 0 (control), 102, 104, 106, 108, and 1010 cfu · ml−1, while only the 1010 cfu ∙ ml−1 concentration of each bacterium was used for the repellent bioassay. The mortality rate and repellentindex were recorded 24, 48 and 72 h after application. Results indicated that the survival rate of T. urticae was reduced (p ≤ 0.01) by all three bacterial isolates compared to control. Within the 24–72 h time period the mortality rates ranged from 8 to 87%, 16 to 99%, and 13 to 89%, for ...
The value of simulations characterizing classes of symbiosis
Expert Systems in Finance, 2019
Sustainability
Free-living nematodes have beneficial effects on plant growth and nutrition. Exploring how agricu... more Free-living nematodes have beneficial effects on plant growth and nutrition. Exploring how agricultural practices modulate these beneficial effects is still challenging. A study was conducted in Ferralsols from Madagascar from one unmanaged grassland and 16 upland rainfed rice fields, representative of different agricultural practices: rotation, agroforestry and monoculture. Intact soil cores in plastic cylinders were sampled in the field to assess the effects of agricultural practices on changes in plant growth and nutrition induced by the presence of bacterial-feeding nematodes. The soil cores were fumigated to kill the nematodes and moistened with a filtered fresh soil suspension containing only microbial cells. A rice seed was introduced in the core, which was then incubated under natural climatic conditions for 40 days with or without inoculation of the bacterial-feeding nematode Acrobeloides sp. The inoculation of the nematodes induced lower, similar or higher plant biomass an...
Environmental Science and Pollution Research
Emergent horizons and biodynamic interactions occur within extremes of biological diversity, chem... more Emergent horizons and biodynamic interactions occur within extremes of biological diversity, chemical potential in soil and atmospheric/climatic parameters, and social inclusion. These give us the definitions required for geographical partitioning of lands to enable the highest protection advisory of the United Nations Educational, Scientific and Cultural Organization (UNESCO) bordering bodies. The international treaty of the Hague Convention for the Protection of Cultural Property in the Event of Armed Conflict, formed in 1954, links UNESCO sites as being crucial to national sustainable development. Sustainable development benefits international industry links with a diverse range of natural product potential. The papers presented in this special edition arose following a call for sessions entitled "Horizons-the good, bad and ugly of extreme geographical borders," which were held during the Royal Geographical Society (with the Institute of British Geographers) Annual International Conference 2021 under the theme of "Borders, borderlands and bordering." Contributions to the special issue detail pivotal elements which maintain ecological and social structures, in Morocco, Iran, and on a wider, global scale. Biological strategies, genetic interactions and different physiological growth forms generate ecological tapestries. We approach functions that assist in
Environmental Science and Pollution Research
The coastal and subcoastal areas of west-central Morocco (Safi to Draa River, the Souss Valley, a... more The coastal and subcoastal areas of west-central Morocco (Safi to Draa River, the Souss Valley, and the southern part of the western High Atlas and northern and southern slopes of the western Anti-Atlas) are characterized by typical Infra-Mediterranean vegetation ranking them amongst the important of the remarkable borderlands of North Africa. The flora is determined by complex historical and environmental factors occurring since the Tertiary period. The originality of this sector is due to the presence of the argan tree (Argania spinosa (L.) Skeels), Moroccan gum (Acacia gummifera Willd), olive trees (Olea europaea L. subsp. maroccana (Greuter & Burdet) P. Vargas & al.), a thermophilic flora adapted to an arid climate with several endemic species. This flora constitutes the final barrier against the desert and is of environmental and socioeconomical interest. Leaves and fruits provide forage material, while wood is used for fuel. Argan fruits are collected for their oily constitutes and for nutritional, cosmetic, and medicinal properties. Additionally, many species of Argan ecosystems are used in medicine and cosmetics. Recognizing its ecological value and local economic importance, the Argan region was declared a UNESCO Biosphere Reserve in 1998. Despite their biogeographical, historical, and socioeconomic value, vegetation structures in west-central Morocco are vulnerable and threatened by human activities. They exhibit high levels of degradation due to increasing clearance, overgrazing, and overexploitation. The area requires high conservation priority and sustainable management strategies for key species and genetic diversity.
Harmonics, evolutionary generators, DANCE, and HEAR—functional dimensions
Environmental Science and Pollution Research
Water purification plantations for oil and gas industries in Iran
Environmental Science and Pollution Research
Phytoparasitic nematodes of organic vegetables in the Argan Biosphere of Souss-Massa (Southern Morocco)
Environmental Science and Pollution Research
Environmental Science and Pollution Research
Chemical Characterization of Essential Oils of Senecio glaucus ssp. Coronopifolius (Maire) Alexander and Ridolfia segetum (L.) Moris Growing in Morocco
Journal of Essential Oil Bearing Plants
Biocontrol potential of nematophagous fungi against Meloidogyne spp. infecting tomato
Organic Agriculture
Optimization of tomato waste composting with integration of organic feedstock
Environmental Science and Pollution Research
Optimization of solid phosphate sludge composting by integration of horticultural waste
Organic Agriculture
Biopesticidal value of Senecio glaucus subsp. coronopifolius essential oil against pathogenic fungi, nematodes, and mites
Materials Today: Proceedings
Biological activities of essential oils and lipopeptides applied to control plant pests and diseases: a review
International Journal of Pest Management
Plant-parasitic nematodes parasitizing saffron in Morocco: Structuring drivers and biological risk identification
Applied Soil Ecology
Composting of tomato plant residues: improvement of composting process and compost quality by integration of sheep manure
Organic Agriculture
In Morocco, greenhouse tomato production is a source of organic waste. This biomass constitutes a... more In Morocco, greenhouse tomato production is a source of organic waste. This biomass constitutes an important source of carbon, macronutrients (NPK), and microelements (Mn, Zn, Cu, and Fe). This research aims to investigate the composting process of tomato plant residues by sheep manure integration at different proportions and its effect on organic matter mineralization and humification, nitrogen dynamics, and agronomic value of the final compost. The composting process was run in an experimental conditions using two different mixing ratios set up on volume basis: R1 (2:3 tomato plant residues "TPR" + 1:3 sheep manure "SM") and R2 (1:3 tomato plant residues "TPR" + 2:3 sheep manure "SM") and two controls TRP (1:1 tomato plant residues "TPR") and SM (1:1 sheep manure). Parameters such as temperature, pH, EC, C:N ratio, mineral nitrogen, and macroelements (phosphorus and potassium) were measured for a period of 60 days. At the end of the experiment , compost humification ratio and compost quality were assessed. Results showed that when TPR is composted alone, nitrogen loss and lack of aeration were observed due to a lower C:N ratio and higher moisture content. The addition of sheep manure in treatment R2 not only resulted in reaching rapidly thermophile phase and maintaining it for longer periods, but also it reduced N loss, decreased electrical conductivity, and increased concentrations of humic acid and macroelements. The present results provide opportunities to improve composting of TPR as well as the agronomic quality of the produced compost by sheep manure integration.
Scientific Reports
Pseudomonas isolates have frequently been isolated from the rhizosphere of plants, and several of... more Pseudomonas isolates have frequently been isolated from the rhizosphere of plants, and several of them have been reported as plant growth-promoting rhizobacteria. In the present work, tomato (Solanum lycopersicum) seeds were germinated in greenhouse conditions, and the seedling height, length of plants, collar diameter and number of leaves were measured from plants grown in soil inoculated by bacterial isolates. Pseudomonas isolates were isolated from the rhizosphere. We used the newman-Keuls test to ascertain pairwise differences. Isolates were identified as a new Pseudomonas species by rpoD gene sequencing. the results showed that isolates of Pseudomonas sp. (Q6B) increased seed germination (P = 0.01); Pseudomonas sp. (Q6B, Q14B, Q7B, Q1B and Q13B) also promoted seedling height (P = 0.01). All five isolates promoted plant length and enlarged the collar diameter (P = 0.01). Pseudomonas sp. (Q1B) also increased leaf number (P = 0.01). The investigation found that Pseudomonas isolates were able to solubilize phosphate, produce siderophores, ammonia, and indole-3-acetic acid and colonize the roots of tomato plants. This study shows that these five novel Pseudomonas sp. isolates can be effective new plant growth-promoting rhizobacteria. Plant growth-promoting rhizobacteria (PGPR) 1 are an indispensable part of the rhizospheric biota and are beneficial bacteria that colonize plant roots 2,3. PGPR increase the growth, yield, and stress tolerance of crop plants 4. They improve plant growth through enhanced nutrient uptake from soil 5 and a wide variety of mechanisms such as phosphate solubilization, siderophore production, biological nitrogen fixation, phytohormone production, antifungal activity, and systemic resistance induction. Such mechanisms make PGPR potentially usable biofertilizers 6. Their emergence as a potent alternative has come in response to the overuse of agrochemical products such as fertilizers and pesticides, which lead to contamination of soil, fruits and vegetables 5. This threat has prompted field workers to seek viable alternatives to reduce the use of chemical products. According to studies conducted on this issue, PGPR can be included in biofertilizers and biopesticide applications, which makes them the most effective organic alternative 6-8. PGPR comprise 2-5% of the total rhizobacterial community 1 and facilitate its application. In line with the efficacy of PGPR, additional qualities also aid in increasing seed germination 9 , seedling vigor and plant growth 10. PGPR are beneficial microorganisms that may be used in place of synthetic chemicals; furthermore, they improve plant growth by increasing nutrient availability. Overall, PGPR help to sustain environmental health and soil productivity 11-13. In the analysis of PGPR, many studies confirm that the Pseudomonas genus represents the core of PGPR for many crops 1,14-19 .
Journal of Plant Protection Research
The two-spotted spider mite (Tetranychus urticae Koch) is an important pest of many horticultural... more The two-spotted spider mite (Tetranychus urticae Koch) is an important pest of many horticultural crops. A study was conducted to evaluate the effect of three fluorescent Pseudomonas isolates obtained from rhizospheric soil of tomato (Solanum lycopersicon) in Agadir, Morocco: Q110B, Q036B and Q172B, as potential biological control agents for T. urticae. Both acaricide and repellent activities were assessed on homogenous adult mites. The acaricidal activity test evaluated five concentrations of bacterial suspensions: 0 (control), 102, 104, 106, 108, and 1010 cfu · ml−1, while only the 1010 cfu ∙ ml−1 concentration of each bacterium was used for the repellent bioassay. The mortality rate and repellentindex were recorded 24, 48 and 72 h after application. Results indicated that the survival rate of T. urticae was reduced (p ≤ 0.01) by all three bacterial isolates compared to control. Within the 24–72 h time period the mortality rates ranged from 8 to 87%, 16 to 99%, and 13 to 89%, for ...