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- Author:
- Atanas Atanassov, et al. ; Liliya Georgievaa; Strahil Berkov; Violeta Kondakova; Jaume Bastida; Francesc Viladomat; Carles Codina; Show all 7 Authors
- Source:
- Zeitschrift für Naturforschung 2014 v.62 no.9-10 pp. 627-635
- ISSN:
- 1865-7125
- Subject:
- Alzheimer disease; Leucojum aestivum; acetylcholinesterase; bulbs; gas chromatography-mass spectrometry; lycorine; summer; Bulgaria
- Abstract:
- ... Leucojum aestivum (summer snowflake) is a plant species used for the extraction of galanthamine, an acetylcholinesterase inhibitor for the treatment of Alzheimer’s disease. Extracts from bulbs collected from 18 Bulgarian populations and from shoot-clumps obtained in vitro from 8 different populations showed variations in their alkaloid composition. Nineteen alkaloids were detected in the studied s ...
- DOI:
- 10.1515/znc-2007-9-1002
- https://doi.org/10.1515/znc-2007-9-1002
- Author:
- Atanas Atanassov, et al. ; Strahil Berkov; Lilija Georgieva; Violeta Kondakova; Francesc Viladomat; Jaume Bastida; Carles Codina; Show all 7 Authors
- Source:
- Biochemical systematics and ecology 2013 v.46 pp. 152-161
- ISSN:
- 0305-1978
- Subject:
- Alzheimer disease; Leucojum aestivum; acetylcholinesterase; biosynthesis; chemotypes; gas chromatography; lycorine; mass spectrometry; medicine; mountains; Balearic Islands; Bulgaria; Danube River
- Abstract:
- ... Leucojum aestivum, an industrial source of the acetylcholinesterase inhibitor galanthamine, shows a great chemodiversity in its alkaloid synthesis. Samples from various geographically distinct populations from Bulgaria and the Balearic Islands were studied by GC–MS. The alkaloid pattern of the plants of L. aestivum (subsp. pulchellum) from the Balearic Islands were dominated by crinine type compou ...
- DOI:
- 10.1016/j.bse.2012.10.002
- https://doi.org/10.1016/j.bse.2012.10.002
- Author:
- Atanas Atanassov, et al. ; Ivan Tsvetkov; Mariana Vlahova; Lucien Carlier; Nikolai Christov; Francois Lefort; Krasimir Rusanov; Ilian Badjakov; Ivayla Dincheva; Mark Tchamitchian; Goritsa Rakleova; Liliya Georgieva; Lucius Tamm; Anelia Iantcheva; Joelle Herforth-Rahmé; Epaminondas Paplomatas; Ivan Atanassov; Show all 17 Authors
- Source:
- Biotechnology, biotechnological equipment 2018 v.32 no.2 pp. 241-260
- ISSN:
- 1314-3530
- Subject:
- biodiversity; biotechnology; equipment; international policy and programs; soil fertility; stakeholders
- Abstract:
- ... This paper reviews the recent development of the scientific, legislative, economic and environmental aspects of plant organic farming. The impact of organic farming on biodiversity and soil fertility is discussed in comparison with conventional systems. A significant barrier for wide application and future development of organic farming is the existing diversity of national and international polic ...
- DOI:
- 10.1080/13102818.2018.1427509
- https://doi.org/10.1080/13102818.2018.1427509
- Author:
- Atanas Atanassov, et al. ; Virjinia Doltchinkova; Plamena Angelova; Elitsa Ivanova; Dimiter Djilianov; Daniela Moyankova; Tatyana Konstantinova; Show all 7 Authors
- Source:
- Journal of photochemistry and photobiology 2013 v.119 pp. 22-30
- ISSN:
- 1011-1344
- Subject:
- Nicotiana tabacum; acclimation; betaine; cold; cold stress; cold tolerance; electrophoresis; freezing; genetic transformation; ionic strength; light scattering; lighting; osmotolerance; photobiology; photochemistry; proline; temperature; thylakoids; tobacco; transgenic plants; wild plants
- Abstract:
- ... In the present study we characterize for the first time electrokinetic and light scattering properties of thylakoids from freezing-tolerant tobacco plants, transformed to accumulate osmoprotectants (proline: AtP5Cs, VacP5Cs; fructan: SacB; glycine betaine: codA). Tobacco plants of wild type (WT) and transformed variants were cultivated at 2°C (cold acclimated) and −2°C (freezing stressed). “Lower ...
- DOI:
- 10.1016/j.jphotobiol.2012.12.004
- https://doi.org/10.1016/j.jphotobiol.2012.12.004
- Author:
- Atanas Atanassov, et al. ; Ivanka Kamenova; Rossitza Batchvarova; Stanislaw Flasinski; Lidia Dimitrova; Petya Christova; Slavcho Slavov; Plamen Kalushkov; Wojciech Kaniewski; Show all 9 Authors
- Source:
- Agronomy for sustainable development 2008 v.28 no.4 pp. 481-488
- ISSN:
- 1774-0746
- Subject:
- Bacillus thuringiensis; Leptinotarsa decemlineata; antibodies; bioassays; biotechnology; crop yield; cultivars; enzyme-linked immunosorbent assay; field experimentation; genetically modified organisms; insect pests; insecticides; larvae; mortality; phenotype; polymerase chain reaction; potatoes; sustainable agriculture; transgenes; Bulgaria
- Abstract:
- ... Colorado potato beetle, Leptinotarsa decemlineata Say, is the most destructive insect pest of potatoes. When the population of beetles is high, plants can be completely defoliated and commercial potato production is nearly impossible without control of the beetle. The beetles have shown a tremendous ability to develop resistance against insecticides. Previously, a biotechnology approach to control ...
- DOI:
- 10.1051/agro:2008025
- https://doi.org/10.1051/agro:2008025
- Author:
- Atanas Atanassov, et al. ; Ivan Atanassov; Eugenia Russinova; Ludmil Antonov; Show all 4 Authors
- Source:
- Plant molecular biology 1998 v.38 no.6 pp. 1169-1178
- ISSN:
- 0167-4412
- Subject:
- Arabidopsis thaliana; Nicotiana benthamiana; Nicotiana sylvestris; Phytophthora nicotianae var. parasitica; anthers; chromosomes; clones; complementary DNA; fungal diseases of plants; gene expression; genes; messenger RNA; microspores; naringenin-chalcone synthase; polyketide synthases; sequence analysis; transgenic plants; ultraviolet radiation
- Abstract:
- ... Two cDNA clones, specifically expressed in Nicotiana sylvestris anthers during uninucleate microspore development, were isolated using a subtractive hybridization approach. Sequence analysis showed that one of them, NSCHSLK, displayed a high level of similarity to several anther-specific chalcone synthase-like (CHSLK) proteins and an ORF from chromosome 1 of Arabidopsis thaliana. A lower, but sign ...
- DOI:
- 10.1023/A:1006074508779
- https://doi.org/10.1023/A:1006074508779