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Papers by Anca Sarbu

Contributii Botanice, 2009

Contribuţii Botanice - 2009, XLIV: 67-75 Grădina Botanic㠓Alexandru Borza” Cluj-Napoca UNPROTECT... more Contribuţii Botanice - 2009, XLIV: 67-75 Grădina Botanic㠓Alexandru Borza” Cluj-Napoca UNPROTECTED GRASSLAND AREAS FROM DOBROGEA, OF HIGH BOTANICAL VALUE Anca SÂRBU1, Ion SÂRBU2, Daniela MIHAI1 1 Universitatea din Bucureşti, Facultatea de ...

Springer eBooks, Dec 16, 2013

DOAJ (DOAJ: Directory of Open Access Journals), Dec 1, 2017

This paper analyses aquatic ferns from the genera Azolla Lam., Marsilea L. and Salvinia Séguier, ... more This paper analyses aquatic ferns from the genera Azolla Lam., Marsilea L. and Salvinia Séguier, which occur in the Danube Delta, Romania, and comprises a series of anatomical and histological observations of taxonomical, chorological and eco-morphological importance. The research conducted on specimens collected between 2005-2013 from the natural habitats of the Danube Delta, but also from the extra-deltaic artificial habitats have enabled: i) a reconsideration of some chorological aspects regarding the species of the genus Azolla in Romania; ii) a greater understanding of the adaptive plasticity relative to the factor water for the taxon Marsilea quadrifolia L. collected from natural and artificial habitats; iii) the enrichment of the data regarding the structural characteristics of the taxon Salvinia natans (L.) All., particularly around the adaptive elements associated with living on the surface of the water.

Journal of Plant Development

Momordica charantia L. (Cucurbitaceae family), medicinal and nutraceutical plant known from Asia,... more Momordica charantia L. (Cucurbitaceae family), medicinal and nutraceutical plant known from Asia, South Africa, South America, the Caribbean region, has been acclimatized in Romania since 1990 until now. This plant, cultivated in the open greenhouses belonging to S.C. HOFIGAL Import Export S.A. has been studied in several projects, among which “Project 160/2014-2017 – MAIA – Multifunctional and innovative products for safe and bioenhanced functional food from newly cultivated plants in Romania”, coordinated by ICECHIM/ INCDCP Bucharest. Starting from this project, a documentary study was carried out on the Momordica charantia plants acclimatized in different countries, and a morpho-anatomical research was initiated on the specimens grown in Romania, in the greenhouses belonging to S.C. HOFIGAL (Voucher BUC 408946-408950). The anatomical observations concerned the organization of the stem, petiole, and leaf lamina, using sets of cross-sectional and paradermal sections, treated with i...

Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2020

This study was carried out in the Bucegi Natural Park, a protected area of the Romanian Carpathia... more This study was carried out in the Bucegi Natural Park, a protected area of the Romanian Carpathians. It aims at documenting the potential sensitivity of six widespread Natura 2000 habitat types and of all plants with conservative value (200 taxa) in the mountain area, to the changes in temperature and humidity, predicted for this century. Regional expert knowledge and environmental indicator values were considered in assessing the potential habitat’s sensitivity. The results support the evidence that sensitivity to temperature may be potentially higher for habitats at alpine and subalpine levels (bushes and grasslands) and medium for forest habitats. Sensitivity to moisture was detected as potentially high for forest habitats and as medium for bushes and grasslands at high mountain elevation. Microthermophilic plants have shown a greater share (76-79%) in alpine and subalpine communities, and the hydrophilic plants (86-96%) in forest communities. About 80% of plants of conservation ...

Water, 2021

The Danube is the second-longest river in Europe that is subjected to various man-made alteration... more The Danube is the second-longest river in Europe that is subjected to various man-made alterations, including those related to hydro-power plants. We surveyed and analyzed the presence and abundance of macrophytes in the main channel from 2582 river kilometers (rkm) to 171 rkm. We also assessed selected habitat parameters in the sampled river stretches. Sixty-eight different plant species were recorded along the entire course. Among neophytes, we found Elodea nuttallii, E. canadensis, Vallisneriaspiralis and Azolla filiculoides. Based on similarity analysis, we distinguished 15 plant communities, most of which were defined as associations, which were classified into 5 alliances and represented three vegetation classes, namely vegetation of rooted hydrophytes Potamogetonetea, the vegetation of pleustophytes Lemnetea and vegetation of marshes Phragmitetea. The number and abundance of plant species, as well as plant communities recorded in single stretches, varied along the course. Can...

Journal of Plant Development, 2018

Plant biostimulants are an emerging category of inputs into technologies for plant cultivation, w... more Plant biostimulants are an emerging category of inputs into technologies for plant cultivation, which activate plant metabolism and nutrient use efficiency. A microbial plant biostimulants consortium was applied on Passiflora caerulea L., a medicinal and nutraceutical plant grown in greenhouse conditions. The treatments were applied during P. caerulea vegetation, as a foliar treatment with a Trichoderma consortium suspension of 10 8 cfu/ml, equiv. to 10 13 spores/ha. The treatment determined significant quantitative changes on morpho-anatomical features, on the leaf lamina (lamina with 10-20% thicker, palisadic cells with 10-20% longer, larger stomata and stomatal index increased by 15%), on the leaf petiole (the diameter ~30% larger, conducting bundles, 20% more developed, the adaxial conducting bundles, ~30% increase) and on the stem (the diameter with 15-20% larger, central cylinder with 15-20% bigger, xylem vessels of more than 50 µm diameter, with 20% more present). These morphoanatomical features demonstrate the plant biostimulants effects of Trichoderma consortium. The results presented here sustain with morpho-anatomical data the accumulation the bioactive compounds, mainly polyphenols and flavonoids with an increased antioxidant activity, which we already reported. Larger stems and leaves of P. caerulea, allow accumulation at a higher level of bioactives compounds.

Biodiversity and Conservation, 2017

Despite the severe threats to plant habitats and high levels of extinction risk for plant species... more Despite the severe threats to plant habitats and high levels of extinction risk for plant species in many parts of the world, plant conservation priorities are often poorly represented in national and global frameworks because of a lack of data in an accessible and consistent format to inform conservation decision making. The Important Plant Areas (IPAs) criteria system offers a pragmatic yet scientifically rigorous means of delivering these datasets, enabling informed national-or regional-scale conservation prioritisation, and contributing significantly towards global prioritisation systems including the International Union for Conservation of Nature Key Biodiversity Areas (KBAs) Standard. In this paper, we review the IPA rationale and progress on IPA identification to date, including the perceived limitations of the process and how these may be overcome. We then present a revised set of criteria for use globally, developed through the combined experiences of IPA Communicated by Daniel Sanchez Mata. This article belongs to the Topical Collection: Biodiversity protection and reserves.

Acta Horti Botanici Bucurestiensis, 2015

Symphyotrichum ciliatum (Ledeb.) G.L. Nesom is an adventive plant first reported in Romania in 19... more Symphyotrichum ciliatum (Ledeb.) G.L. Nesom is an adventive plant first reported in Romania in 1967, which has spread rapidly over the last few decades in Moldova, Muntenia and, more recently, in Transylvania. Although the species has been known for a while in Europe and Romania, there is no information about the anatomy of the vegetative organs of this invasive taxon. This paper presents a series of structural aspects of the vegetative body, of Symphyotrichum ciliatum collected from a sandy and salty substrate (Sacalin Island - Danube Delta). These demonstrate the ability of this plant to adapt to the environment and its capacity to achieve a wide spread. As such, although this plant is an annual species, the root and stem achieve secondary growth in their width, which offers robustness to the corm; the palisade tissue has an ecvifacial disposition which enhances efficiency in capturing light, especially on sandy soil that reflects light; there are aeriferous and aquiferous formati...

Journal of Plant Development, 2020

This paper is focused on the two species of the Nymphaea genus, present in the flora of the Danub... more This paper is focused on the two species of the Nymphaea genus, present in the flora of the Danube Delta, respectively Nymphaea alba L. and N. candida C. Presl. The paper has several objectives as follows: i) to illustrate the morphological identification features mentioned in the literature for Nymphaea alba and N.candida, using material collected from the Danube Delta, ii) to complete the existing information with anatomical-histological data regarding the structure of the lamina and the petiole, with emphasis on the particularities of the mechanical, assimilating and conducting tissues of the two hydrophytes, iii) to present and characterize a variety of the taxon Nymphaea candida-Nymphaea candida var.

It has been performed a complex investigation – morpho-anatomical, physiological, taxonomical and... more It has been performed a complex investigation – morpho-anatomical, physiological, taxonomical and phytochemical one – of Passiflora nutraceutical plants from Hofigal S.A., in the frame of project PNII-PCCA-2013-4-0995, contract 160 (MAIA)/2014. Anatomic analysis of leaf lamina, petiole and stem, provided data with taxonomical importance, leading to the conclusion that plant material belongs to Passiflora caerulea L., in concordance with world monographers of Passiflora genus: VANDERPLANK (2000) and ULMAN & MacDOUGAL (2004). Physiological investigation referred to the following parameters: coefficient k, leaf area index (LAI), chlorophyll fluorescence, stomatal conductance and yield of green plant biomass. Phytochemical investigation consisted in analyzing active principles (polyphenols, flavonoids) content, in correlation with their antioxidant activity and determination of cytotoxicity of Passiflora extracts in NCTC cell line. At 10-150 μg/ml concentrations, it was recorded a norma...

Environmental Science and Engineering

Annals of the New York Academy of Sciences, 2008

Acta Horti Botanici Bucurestiensis, 2013

The species of the genus Xanthium L. raise a number of taxonomic problems, and in some cases thei... more The species of the genus Xanthium L. raise a number of taxonomic problems, and in some cases their identification is difficult and involves to a great extent the features of the fruit. The identification of some additional criteria, such as anatomical and histological features of the vegetative organs, would be highly beneficial. In this context, the current paper analyses the species Xanthium italicum Moretti, one of the six species of the genus Xanthium, recognised as being present in Romania. The paper highlights few anatomo-histological features of the above-ground vegetative organs, which should subsequently be evaluated in other species of the genus Xanthium, with the purpose of identifying those structural criteria, which could contribute to the identification of the species. The paper also completes with new data and original pictures the limited information available in the literature as regards the anatomy of the above-ground vegetative organs of the species Xanthium itali...

Contributii Botanice, 2009

Contribuţii Botanice - 2009, XLIV: 67-75 Grădina Botanic㠓Alexandru Borza” Cluj-Napoca UNPROTECT... more Contribuţii Botanice - 2009, XLIV: 67-75 Grădina Botanic㠓Alexandru Borza” Cluj-Napoca UNPROTECTED GRASSLAND AREAS FROM DOBROGEA, OF HIGH BOTANICAL VALUE Anca SÂRBU1, Ion SÂRBU2, Daniela MIHAI1 1 Universitatea din Bucureşti, Facultatea de ...

Springer eBooks, Dec 16, 2013

DOAJ (DOAJ: Directory of Open Access Journals), Dec 1, 2017

This paper analyses aquatic ferns from the genera Azolla Lam., Marsilea L. and Salvinia Séguier, ... more This paper analyses aquatic ferns from the genera Azolla Lam., Marsilea L. and Salvinia Séguier, which occur in the Danube Delta, Romania, and comprises a series of anatomical and histological observations of taxonomical, chorological and eco-morphological importance. The research conducted on specimens collected between 2005-2013 from the natural habitats of the Danube Delta, but also from the extra-deltaic artificial habitats have enabled: i) a reconsideration of some chorological aspects regarding the species of the genus Azolla in Romania; ii) a greater understanding of the adaptive plasticity relative to the factor water for the taxon Marsilea quadrifolia L. collected from natural and artificial habitats; iii) the enrichment of the data regarding the structural characteristics of the taxon Salvinia natans (L.) All., particularly around the adaptive elements associated with living on the surface of the water.

Journal of Plant Development

Momordica charantia L. (Cucurbitaceae family), medicinal and nutraceutical plant known from Asia,... more Momordica charantia L. (Cucurbitaceae family), medicinal and nutraceutical plant known from Asia, South Africa, South America, the Caribbean region, has been acclimatized in Romania since 1990 until now. This plant, cultivated in the open greenhouses belonging to S.C. HOFIGAL Import Export S.A. has been studied in several projects, among which “Project 160/2014-2017 – MAIA – Multifunctional and innovative products for safe and bioenhanced functional food from newly cultivated plants in Romania”, coordinated by ICECHIM/ INCDCP Bucharest. Starting from this project, a documentary study was carried out on the Momordica charantia plants acclimatized in different countries, and a morpho-anatomical research was initiated on the specimens grown in Romania, in the greenhouses belonging to S.C. HOFIGAL (Voucher BUC 408946-408950). The anatomical observations concerned the organization of the stem, petiole, and leaf lamina, using sets of cross-sectional and paradermal sections, treated with i...

Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2020

This study was carried out in the Bucegi Natural Park, a protected area of the Romanian Carpathia... more This study was carried out in the Bucegi Natural Park, a protected area of the Romanian Carpathians. It aims at documenting the potential sensitivity of six widespread Natura 2000 habitat types and of all plants with conservative value (200 taxa) in the mountain area, to the changes in temperature and humidity, predicted for this century. Regional expert knowledge and environmental indicator values were considered in assessing the potential habitat’s sensitivity. The results support the evidence that sensitivity to temperature may be potentially higher for habitats at alpine and subalpine levels (bushes and grasslands) and medium for forest habitats. Sensitivity to moisture was detected as potentially high for forest habitats and as medium for bushes and grasslands at high mountain elevation. Microthermophilic plants have shown a greater share (76-79%) in alpine and subalpine communities, and the hydrophilic plants (86-96%) in forest communities. About 80% of plants of conservation ...

Water, 2021

The Danube is the second-longest river in Europe that is subjected to various man-made alteration... more The Danube is the second-longest river in Europe that is subjected to various man-made alterations, including those related to hydro-power plants. We surveyed and analyzed the presence and abundance of macrophytes in the main channel from 2582 river kilometers (rkm) to 171 rkm. We also assessed selected habitat parameters in the sampled river stretches. Sixty-eight different plant species were recorded along the entire course. Among neophytes, we found Elodea nuttallii, E. canadensis, Vallisneriaspiralis and Azolla filiculoides. Based on similarity analysis, we distinguished 15 plant communities, most of which were defined as associations, which were classified into 5 alliances and represented three vegetation classes, namely vegetation of rooted hydrophytes Potamogetonetea, the vegetation of pleustophytes Lemnetea and vegetation of marshes Phragmitetea. The number and abundance of plant species, as well as plant communities recorded in single stretches, varied along the course. Can...

Journal of Plant Development, 2018

Plant biostimulants are an emerging category of inputs into technologies for plant cultivation, w... more Plant biostimulants are an emerging category of inputs into technologies for plant cultivation, which activate plant metabolism and nutrient use efficiency. A microbial plant biostimulants consortium was applied on Passiflora caerulea L., a medicinal and nutraceutical plant grown in greenhouse conditions. The treatments were applied during P. caerulea vegetation, as a foliar treatment with a Trichoderma consortium suspension of 10 8 cfu/ml, equiv. to 10 13 spores/ha. The treatment determined significant quantitative changes on morpho-anatomical features, on the leaf lamina (lamina with 10-20% thicker, palisadic cells with 10-20% longer, larger stomata and stomatal index increased by 15%), on the leaf petiole (the diameter ~30% larger, conducting bundles, 20% more developed, the adaxial conducting bundles, ~30% increase) and on the stem (the diameter with 15-20% larger, central cylinder with 15-20% bigger, xylem vessels of more than 50 µm diameter, with 20% more present). These morphoanatomical features demonstrate the plant biostimulants effects of Trichoderma consortium. The results presented here sustain with morpho-anatomical data the accumulation the bioactive compounds, mainly polyphenols and flavonoids with an increased antioxidant activity, which we already reported. Larger stems and leaves of P. caerulea, allow accumulation at a higher level of bioactives compounds.

Biodiversity and Conservation, 2017

Despite the severe threats to plant habitats and high levels of extinction risk for plant species... more Despite the severe threats to plant habitats and high levels of extinction risk for plant species in many parts of the world, plant conservation priorities are often poorly represented in national and global frameworks because of a lack of data in an accessible and consistent format to inform conservation decision making. The Important Plant Areas (IPAs) criteria system offers a pragmatic yet scientifically rigorous means of delivering these datasets, enabling informed national-or regional-scale conservation prioritisation, and contributing significantly towards global prioritisation systems including the International Union for Conservation of Nature Key Biodiversity Areas (KBAs) Standard. In this paper, we review the IPA rationale and progress on IPA identification to date, including the perceived limitations of the process and how these may be overcome. We then present a revised set of criteria for use globally, developed through the combined experiences of IPA Communicated by Daniel Sanchez Mata. This article belongs to the Topical Collection: Biodiversity protection and reserves.

Acta Horti Botanici Bucurestiensis, 2015

Symphyotrichum ciliatum (Ledeb.) G.L. Nesom is an adventive plant first reported in Romania in 19... more Symphyotrichum ciliatum (Ledeb.) G.L. Nesom is an adventive plant first reported in Romania in 1967, which has spread rapidly over the last few decades in Moldova, Muntenia and, more recently, in Transylvania. Although the species has been known for a while in Europe and Romania, there is no information about the anatomy of the vegetative organs of this invasive taxon. This paper presents a series of structural aspects of the vegetative body, of Symphyotrichum ciliatum collected from a sandy and salty substrate (Sacalin Island - Danube Delta). These demonstrate the ability of this plant to adapt to the environment and its capacity to achieve a wide spread. As such, although this plant is an annual species, the root and stem achieve secondary growth in their width, which offers robustness to the corm; the palisade tissue has an ecvifacial disposition which enhances efficiency in capturing light, especially on sandy soil that reflects light; there are aeriferous and aquiferous formati...

Journal of Plant Development, 2020

This paper is focused on the two species of the Nymphaea genus, present in the flora of the Danub... more This paper is focused on the two species of the Nymphaea genus, present in the flora of the Danube Delta, respectively Nymphaea alba L. and N. candida C. Presl. The paper has several objectives as follows: i) to illustrate the morphological identification features mentioned in the literature for Nymphaea alba and N.candida, using material collected from the Danube Delta, ii) to complete the existing information with anatomical-histological data regarding the structure of the lamina and the petiole, with emphasis on the particularities of the mechanical, assimilating and conducting tissues of the two hydrophytes, iii) to present and characterize a variety of the taxon Nymphaea candida-Nymphaea candida var.

It has been performed a complex investigation – morpho-anatomical, physiological, taxonomical and... more It has been performed a complex investigation – morpho-anatomical, physiological, taxonomical and phytochemical one – of Passiflora nutraceutical plants from Hofigal S.A., in the frame of project PNII-PCCA-2013-4-0995, contract 160 (MAIA)/2014. Anatomic analysis of leaf lamina, petiole and stem, provided data with taxonomical importance, leading to the conclusion that plant material belongs to Passiflora caerulea L., in concordance with world monographers of Passiflora genus: VANDERPLANK (2000) and ULMAN & MacDOUGAL (2004). Physiological investigation referred to the following parameters: coefficient k, leaf area index (LAI), chlorophyll fluorescence, stomatal conductance and yield of green plant biomass. Phytochemical investigation consisted in analyzing active principles (polyphenols, flavonoids) content, in correlation with their antioxidant activity and determination of cytotoxicity of Passiflora extracts in NCTC cell line. At 10-150 μg/ml concentrations, it was recorded a norma...

Environmental Science and Engineering

Annals of the New York Academy of Sciences, 2008

Acta Horti Botanici Bucurestiensis, 2013

The species of the genus Xanthium L. raise a number of taxonomic problems, and in some cases thei... more The species of the genus Xanthium L. raise a number of taxonomic problems, and in some cases their identification is difficult and involves to a great extent the features of the fruit. The identification of some additional criteria, such as anatomical and histological features of the vegetative organs, would be highly beneficial. In this context, the current paper analyses the species Xanthium italicum Moretti, one of the six species of the genus Xanthium, recognised as being present in Romania. The paper highlights few anatomo-histological features of the above-ground vegetative organs, which should subsequently be evaluated in other species of the genus Xanthium, with the purpose of identifying those structural criteria, which could contribute to the identification of the species. The paper also completes with new data and original pictures the limited information available in the literature as regards the anatomy of the above-ground vegetative organs of the species Xanthium itali...