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Articolul urmator |
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Ultima descărcare din IBN: 2023-02-11 16:32 |
Căutarea după subiecte similare conform CZU |
58.085:581.1 (1) |
Botany (1748) |
Plant physiology (526) |
SM ISO690:2012 CHIORCHINA, Nina. Conservation and maintenance of rare plants through vitroculture. In: Patrimoniul cultural de ieri – implicații în dezvoltarea societății durabile de mâine, Ed. 3, 11-12 februarie 2021, Chişinău. Chișinău, Republica Moldova: 2021, Ediția 3, pp. 57-59. ISSN 2558 – 894X. |
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Patrimoniul cultural de ieri – implicații în dezvoltarea societății durabile de mâine Ediția 3, 2021 |
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Conferința "Yesterday’s heritage – implications for the development of tomorrow’s sustainable society" 3, Chişinău, Moldova, 11-12 februarie 2021 | ||||||
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CZU: 58.085:581.1 | ||||||
Pag. 57-59 | ||||||
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The increase of cultivated areas, the construction of industrial objects, and other human activities have a negative impact on the flora and vegetation of the Republic of Moldova. Preservation and protection of rare species is one of the most important problems of contemporary botany, which is attracting more and more attention from scientists around the world. Rare and endangered plants are the most vulnerable component in the conservation of phytodiversity and their loss is irrecoverable. These rare species from the spontaneous flora of the Republic of Moldova are the object of research of the Laboratory of Embryology and Biotechnology of GBNI. Especially the highly decorative plants with beautiful attractive flowers, the vernal ephemeroids of the fam. Amarillydaceae: Liliummartagon L., Fritillariamontana Hoppe, Bellevaliasarmatica (Georgi) Woronov, Galanthus.nivalis L., Galanthus Elwesi Hook, GalanthusplicatusBieb., Leucojumaestivum L, SternbergiacolchicifloraWaldst et Kit. are abusively collected. The application of in vitro propagation methods is a safe possibility to protect these endemic species in botanical gardens and their repatriation to natural niches. Viticulture has a number of advantages compared to classical methods of regeneration and their maintenance in collections. The morphogenetic potential of species regeneration is induced by several factors: explant genotype, regenerative capacity, biotic and abiotic conditions (temperature, light, humidity, season), chemical composition of the nutrient environment, presence or absence of appropriate growth regulators, with important role in the induction and initiation of regeneration processes and organogenesis is indisputable. Preserving the cultures in in vitro conditions, allows the management with the development process of the cultivated species slow or more increased and safe possibility to maintain the collections of rare and endangered plants for a long time in viticulture, this stagnation is not detrimental to viability and does not reduce the number of productive subcultivations. The laboratory managed to carry out projects on the introduction of rare species in vitro culture and the development of microcloning and micropropagation technologies, description of multiplication protocols at all stages of obtaining rare plant propagation material from plant selection and inoculation on nutrients to acclimatization and adaptation to ex vitro conditions of seedlings. |
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