Sohbat Bahraminejad | Razi University of Kermanshah, Iran (original) (raw)

Papers by Sohbat Bahraminejad

Euphrates Journal of Agriculture Science, 2011

Journal of Cereal Science, Sep 1, 2020

Abstract The current study conducted to address the knowledge gaps about genetics of GFeC and GZn... more Abstract The current study conducted to address the knowledge gaps about genetics of GFeC and GZnC in wheat grains. Six basic generations of the two crosses were evaluated using generation mean analysis under each of normal and terminal drought stress conditions. Due to the role of fixable gene effects and high heritability for GFeC at Marvdasht × Rassoul cross under both conditions, selection for this trait could be effective in early generations. Considering the high role of non-additive gene effects along with relatively low h n 2 for GZnC experiments, it is suggested to postpone the selection process until advance generations. The h b 2 estimates for GFeC and GZnC were over 60% at this research. A moderate h n 2 estimate was found at both crosses for GZnC. Both kind of heterosis at both crosses for GFeC and GZnC were often significantly negative. Marvdasht × Rassoul cross had more response to selection for GFeC, but the response to selection for GZnC was higher at Marvdasht × Shahpasand. The information provided in this work could be useful to assist planning effective strategy for breeding these micronutrients in wheat.

Objective Hyssopus officinalis, one of the most important medicinal plants belongs to the Lamiace... more Objective Hyssopus officinalis, one of the most important medicinal plants belongs to the Lamiaceae family and it is rich in essential oils that is used for medicinal purposes, health care and food. By tissue culture method such as; callus production and plant regeneration, we able to increase the production of quality and quantity of effective secondary metabolites in this medicinal important plant. This study was performed on MS medium, aimed to determine the most appropriate concentration of auxin and cytokinin plant growth regulators to obtain the maximum efficiency in induction and production of callus and in vitro regeneration of plantlets from leaf and hypocotyl explants of Hyssopus officinalis.

and 2016. In greenhouse study, 64, 12, and 38 varieties of wheat, barley and oats were tested, re... more and 2016. In greenhouse study, 64, 12, and 38 varieties of wheat, barley and oats were tested, respectively. In the field study, 11 oat varieties (Ugf775456, Wallaroo, Ozark and ...), two barley (Nosrat and Ryhan) and two wheat (Psrsi and Pishtaz) varieties were examined. In both studies, 2.5 liters of trifluralin per hectare (commercial form) was used. A factorial experiment in a randomized complete block design and a randomized complete block design with three replications were used in greenhouse and field experiments, respectively. In the greenhouse study, germination percentage and dry weight and in the field study, grain yield, emergence percentage and length of coleoptiles were recorded. The use of herbicide increased seed yield and germination percentage of oat crop higher than barley and wheat. Coleoptiles length of crops and wild oat was significantly different. The difference of coleoptile length of wheat, barley and oat crop allow the use of trifluralin as layers.

Annals of Biological Research, 2012

Crude aqueous and methanolic extracts of 97 plant species belonging to 35 families collected from... more Crude aqueous and methanolic extracts of 97 plant species belonging to 35 families collected from the west of Iran were screened for antifungal activity against economically important phytopathogenic fungi, Pythium aphanidermatum. Bioassay of the extracts was conducted by paper disc diffusion method on agar plate cultures with four replications. Seventeen of 97 (17.5%) plant species showed inhibitory activity against the tested fungi.

Nematologia Mediterranea, Dec 15, 2008

Secondary metabolites in plants are widely believed to be important for plant resistance to a ran... more Secondary metabolites in plants are widely believed to be important for plant resistance to a range of pests and pathogens, but identifying key metabolites remains a challenge. To test whether the phenotypic extremes of a single seed descent (SSD) mapping population can be used to identify important metabolites, we analysed extracts from selected individuals of an SSD mapping population. The Avena sativa population was segregating for cereal cyst nematode (CCN), Heterodera avenae, resistance and resistance to the stem and bulb nematode, Ditylenchus dipsaci. CCN data were collected over three years, 2000, 2001 and 2002. Reversed-phase high performance liquid chromatography provided a profile of compounds from root extracts, allowing us to compare SSD individuals with high CCN count to individuals with a low CCN count. Several avenacins were positively identified by mass spectrometry, but were not correlated with CCN count. There was no significant correlation between flavonoids in oat roots and shoots with either CCN count or stem and bulb nematode resistance. However, three fractions recovered from root tips had a significant correlation with CCN count. Two of the fractions contained putative avenacins that have not been previously reported, whilst the third fraction contained a compound that was too unstable to characterise. This study highlights the potential of SSD populations for identification of bioactive compounds.

PubMed, Mar 20, 2016

Medicinal plants are known as important sources of secondary metabolites. Because of the economic... more Medicinal plants are known as important sources of secondary metabolites. Because of the economic value of pennyroyal [Mentha pulegium L. (Lamiaceae)] in food industries, propagation of this valuable plant has special importance. Plant cell suspension culture can increase some produced components. The aim of this research was performing cell culture for induction of some secondary metabolites of M. pulegium and compares it with native one. The MS medium was used for suspension culture. To investigate quantitative materials, 4 levels of yeast extract elicitor (20, 40, 60 and 80 mg/L) and salicylic acid in 4 levels (2, 4, 6 and 8 mg/L) were used. Obtained extracts were analyzed by GC-MS. Statistical analysis showed that the amount of limonene, menthone, menthol and α-pinene were more than mentioned compounds in natural plant as control. The maximum amount of this metabolites were obtained as limonene (in 60 mg/l yeast extract), menthone (in 40 mg/l yeast extract and 2 mg/l salicylic acid), menthol (in 6 mg/l salicylic acid) and α-pinene (in 4 mg/l salicylic acid) in the M. pulegium cell culture. The Pulegone was fond more in natural plants than cell culture mass. The most important secondary metabolites were increased by cell culture containing of salicylic acid and yeast extract elicitors in M. pulegume.

Zenodo (CERN European Organization for Nuclear Research), Oct 20, 2011

White rust, caused by Albugo candida, is the most destructive foliar diseases of persian cress, L... more White rust, caused by Albugo candida, is the most destructive foliar diseases of persian cress, Lepidium sativum in Iran. Application of fungicide is the most common method for the disease control. However, regarding the problems created by synthetic pesticides application, environmentally safe methods are needed to replace chemical pesticides. In this study, the antifungal activity of plant natural extracts was investigated for their ability to inhibit zoospore release from sporangia of A. candida. The crude extract of 46 plants was obtained using methanol. The inhibitory effect of the extracts was examined by mixing the plant extracts with a zoosporangial suspension of A. candida (1×10 6 spore/ml) at three concentrations, 250, 100 and 50 ppm. The experiments were conducted in a completely randomized design, with three replicates. The results of the experiment showed that three out of 46 plants species, including, Rhus coriaria, Anagallis arvensis and Mespilus germanica were completely inhibit zoospore release from zoosporangia of Albugo candida at concentration of 50 ppm.

Journal of Applied Biotechnology Reports, Sep 15, 2014

Australian Journal of Crop Science, Mar 1, 2013

Cuminum cyminum is a valuable medicinal plant belongs to family Apiaceae. In this study genetic v... more Cuminum cyminum is a valuable medicinal plant belongs to family Apiaceae. In this study genetic variation among 42 cumin accessions were collected from different regions of Iran plus two accessions from Syria and Afghanistan were assessed based on three marker systems namely, ISSR, RAPD and morpho-agronomic traits. In overall, banding patterns of 22 ISSR primers and 13 RAPD primers revealed 202 (67.32%) and 85 (54.90%) polymorphic bands, respectively. The range of similarity coefficient in ISSR and RAPD markers were 0.48-0.92 and 0.25-0.94, respectively. Using primers as pairwise combination in this study did not offer higher polymorphism but provided different band pattern. Specific grouping were carried out by each cluster analysis including ISSR, RAPD, ISSR+RAPD and morpho-agronomic markers based on their similarity matrix making 8,7,6 and 3 groups respectively. The results showed that grouping based on molecular markers and morpho-agronomic traits are different so these two systems could not discriminate accessions as a same way. All of Mantel tests between extracted similarity matrices from each marker system were significant except between ISSR marker and morpho-agronomic traits. It could be concluded that among three different molecular data sets, the RAPD and RAPD+ISSR data have a significant and closer relationship to morpho-agronomic data.

Australian Journal of Crop Science, 2012

Crude aqueous and methanol extracts of 121 plant species from 41 families, collected from the wes... more Crude aqueous and methanol extracts of 121 plant species from 41 families, collected from the west of Iran, were screened for antifungal activity against mycelial growth of Phytophthora drechsleri. The bioassay used was based on the paper disc diffusion method with four replicates. Extracts of 38 of 121 (about 31%) plant species had inhibitory activity against this phytopathogenic fungus, among which 23 species measurably inhibited the growth of Phytophthora drechsleri. A methanol extract of Xanthium strumarium had the strongest inhibitory activity (17.79±1.35 mm) against P. drechsleri followed by extracts of Glycyrrhiza glabra, Verbascum sp., Hypericum perforatum, Centaura depressa, Centaura sp., Lamium amplexicaule, Haplophyllum perforatum. An investigation of the efficacy of extracts of different plant parts on mycelial inhibition of P. drechsleri, using the paper disc method, indicated that the inflorescence and fruits of cocklebur (Xanthium strumarium) showed significantly more inhibitory effect than the other plant parts against the fungus. Two common species of cocklebur, X. strumarium and X. spinosa, grown around the city of Kermanshah, inhibited mycelial growth of the tested fungus, but extracts of X. strumarium had significantly more inhibitory effect against P. dreschleri than X. spinosa. The results of fractionation of leaf, fruit and inflorescence by thin layer chromatography (TLC) indicated that yellow and blue fractions (under UV) with relative fronts (Rf) equal to 0.93 and 0.98 of leaf, fruit and inflorescence fractions exhibited the highest inhibitory effect against P. dreschleri. These results suggest that cocklebur has potential for control of P. dreschleri and further green house and farm studies are recommended.

African Journal of Biotechnology, Nov 16, 2011

European Journal of Agronomy, Jul 1, 2015

Genetic diversity among 80 irrigated bread wheat genotypes was studied for their grain's protein,... more Genetic diversity among 80 irrigated bread wheat genotypes was studied for their grain's protein, iron and zinc concentrations as well as agronomic traits. The trend of these traits over the 70 years of cultivar releasing was demonstrated. The experiment was conducted as a RCBD with three replicates under normal and terminal drought stress conditions in Kermanshah, Iran during 2011-2012 cropping season. The results of combined ANOVA revealed high significant genotypic differences for all traits, except grain iron and zinc yield. Terminal drought stress reduced all studied traits except grain iron concentration which it increased by 14.10%. The maximum effect of drought stress was on grain zinc yield, grain yield and thousand grain weight as much as 26.65, 23.48 and 18% reduction, respectively. In both conditions, there were negative correlations among grain yield and grain iron, zinc and protein concentrations. Moreover, it was found that grain yield was increased with a small improvement during 70 years while protein, iron and zinc concentrations were decreased over the years. A wide range of genetic diversity in micronutrients uptake, particularly iron and zinc within studied wheat genotypes was identified which suggesting that selection for improved micronutrients efficiency is possible. What was concluded from this study is breeders' attention to enhancing grain production caused to neglect the quality of wheat production specially protein, iron and zinc concentrations during the last 70 years.

پژوهشنامه اصلاح گیاهان زراعی, Dec 1, 2020

Studying the genetic structure of crops, including wheat, has always been one of the research pri... more Studying the genetic structure of crops, including wheat, has always been one of the research priorities to increase the efficiency of breeding methods. In order to genetic analysis of some agronomic traits of bread wheat using generation mean analysis (GMA), all produced generations along with relevant parents of the two populations (Marvdasht × Rasoul and Marvdasht × Shahpasand) were evaluated in a randomized complete block design with three replicates under normal and terminal drought stress conditions in Razi University during 2015-2016 cropping season. Weighted analysis of variance showed the significant differences among generations for the most of the traits in two conditions. The results of GMA revealed that although the mode of inheritance differed in the crosses for the most of the traits, but additive, dominance gene effects and different types of epistasis had the roles in the heritability of the most traits. Among these gene effects, the role of dominance gene effect was higher and therefore, selection should be delayed to later generations. However, the role of fixable gene effects in the heritability of the traits such as stem diameter, awn length and number of spikelets per spike (both crosses), plant height and peduncle length (Marvdasht × Shahpasand), was almost equal or more than dominance gene effect indicating the usefulness of selection in early generations for these traits. The broad-sense heritability for kernel yield was estimated as nearly moderate for both crosses under both conditions, but the narrow-sense heritability was low under both conditions. Results of analysis of variance obtained from regression method showed that fixable-gene effects had higher relative contribution of generation sum of squares for most of the traits than non fixable-gene effects at both crosses under both conditions. The model of genetic control for the most of the traits was similar under both conditions for both crosses and it has not been widely affected by drought stress.

Journal of Crop Protection, Jun 1, 2015

Journal of Medicinal Plants, Oct 15, 2011

Archives of Phytopathology and Plant Protection, Mar 10, 2014

Root-knot nematode, Meloidogyne javanica, is a major problem confronting greenhouse’s productions... more Root-knot nematode, Meloidogyne javanica, is a major problem confronting greenhouse’s productions, field crops, vegetables, grapevines and almond rootstocks in Kermanshah province, Iran. Nematicides are not affordable to control this nematode. In the search for alternatives to chemicals control of nematodes, this research has dealt with nematicidal effects of crude herbal extracts on the root-knot nematodes. This study aimed to evaluate the effect of 21 endemic and exotic herbal extracts belong to 12 families of flowering plants in comparison with chicken manure and chemical nematicide (Temik) to control root-knot nematodes in in vitro conditions. The nematodes were pured and mass multiplied on tomato in the soil at greenhouse conditions. In order to study the effect of herbal extracts on mortality of second-stage juveniles (J2), a 6 mL of each extract was poured in sterilised Petri dish and 54 ± 4 juveniles were added. Distilled water was used as control and treatments replicated four times and incubated at ambient temperature. The LC50 value of each extract was determined by assessing the mortality of juveniles (in the range of 5–95%) after 24, 48 and 72 h. Comparison between LC50 value of the extracts indicated that Cinnamomum zeylanicum and Eugenia caryophillata are the most effective crude extracts on the mortality of juveniles and they were 15.4 and 17.9 mg mL−1, respectively. Meanwhile, the extract of tobacco, ferulago, garlic, eucalyptus, persan lilac, rattle, oliveria, licorice, russian knapweed, turnsole, sicilian sumac and chicken manure did not have any antinematode activity against fresh second-stage juveniles of the root-knot nematode.