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Wyszukujesz frazę "Stevia rebaudiana" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Sustainable micropropagation of selected Stevia rebaudiana Bertoni genotypes
Autorzy:
Kaplan, B.
Duraklioglu, S.
Turgut, K.
Powiązania:
https://bibliotekanauki.pl/articles/12691030.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
Turkey
plant cultivation
Compositae
Stevia rebaudiana
steviol glycoside
sweetener
micropropagation
in vitro propagation
growth regulator
genotype
Gelrite preparation
Opis:
Stevia rebaudiana Bertoni is a perennial plant belonging to Asteraceae family and its leaves contain steviol glycosides (SGs) that are 150 to 300 times sweeter than sucrose. The sweeteners obtained from S. rebaudiana can be safely used by diabetics as insulin secretion is not required during digestion of this sweetener. As it has zero calories, it is also used in diet products. Adaptation studies for Stevia conducted in Antalya, Turkey have shown that the stevia plant could easily be cultivated as a perennial. However, the lack of a sustainable vegetative propagation method creates a significant problem for stevia production. In the generatively populations, homogeneity and therefore quality are decreased because of cross-pollination. Stevia, as a self-incompatible and cross-pollinated species, has been shown to have very high genetic diversity. Therefore, development of a sustainable in vitro propagation method to prevent genetic heterogeneity of selected varieties is crucial for stevia cultivation. The aim of this study was to evaluate 2 different gelling agents (plant agar and Gelrite) and 20 different growth regulators combinations. The results demonstrated an approximately 200-fold multiplication rate obtained within 13 weeks using MS medium supplemented with 0.5 mg·dm–3 BAP and 0.25 mg·dm–3 kinetin and solidified with Gelrite. Average stevioside and rebaudioside A contents in in vitro propagated plant samples were found to be 8.1% and 8.6%, respectively.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 6; 47-56
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fast direct regeneration of plants from nodal explants of Stevia rebaudiana Bert.
Autorzy:
Doliński, R.
Kowalczyk, K.
Powiązania:
https://bibliotekanauki.pl/articles/12611010.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant cultivation
Stevia rebaudiana
plant regeneration
plant use
medicinal plant
nodal explant
micropropagation
in vitro culture
auxin concentration
Opis:
In the preceding research, stevia has been typically cloned in vitro using two media, on which the shoots were formed (3–6 weeks), and on the other they were rooted (3–5 weeks). This study aimed at finding the possibility for rapid stevia propagation from large nodal explants using the MS basal medium [Murashige and Skoog 1962], with low auxin concentrations (0.5, 1 and 2 mg.dm–3). The plants were obtained as soon as after three weeks. The best results were obtained from media with various concentrations of the indole-3-acetic acid (IAA) and the highest concentration of phenylacetic acid (PAA). Plants were formed by 83.9–86.0% of explants, they had high weight (234–253 mg), two shoots measuring 2.07–2.37 cm and 5.8–8.3 roots measuring 1.00–1.24 cm. Mean plant weight was the lowest on media with indole-3-butyric acid (IBA) (185–192 mg). Both explant buds formed single shoots, but their development was typically uneven. The differences in the length and weight of shoots were the lowest on media with IAA and at lower PAA concentrations. Plants from the media with IAA and the control medium were distinguished by higher number of nodes. The percentage share of shoots in the total plant weight was the highest on media with PAA (62.1–62.7%), and the lowest at higher concentrations of α-naphthaleneacetic acid (NAA) (47.9 and 48.9%). Parts of explants immersed in media developed callus, and the highest amounts of this tissue were found in the media with NAA. 92.3% of plants survived the acclimatization. The applied procedure may be used for rapid in vitro cloning of selected stevia genotypes. The use of one medium enables reduction of seedling production costs. Moreover, cyclical cloning and extending the production scale is possible.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 5; 95-103
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental and ecological aspects of cultivation of selected energy and herbal plants propagated by in vitro culture
Autorzy:
Tomaszewska-Sowa, M.
Figas, A.
Powiązania:
https://bibliotekanauki.pl/articles/61499.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
environmental aspect
ecological aspect
plant cultivation
herbal plant
micropropagation
in vitro culture
growth regulation
Silphium perfoliatum
Helichrysum arenarium
Stevia rebaudiana
Opis:
There has been a growing interest over the last years in techniques using alternative and pharmaceutical plants due to their wide potential applications. These species are characterised by valuable and multidirectional usable features, due to which their practical application is superior to their physiognomic features. These plants may provide a raw material for production of medicines, cosmetics or may be used for animal feeds. Moreover they may be used as ornamental, melliferous and energy plants. Owing to their generally low soil requirements they are used in the reclamation of degraded land. Among the species characterized by multidirectional use are Silphium perfoliatum, Helichrysum arenarium and Stevia rebaudiana. These plants are characterized by a high content of active compounds and a number of pro-health characteristics. Because raw materials for production of medicines and cosmetics should be standardized, cultures maintained under controlled conditions are a good source of seedlings.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2014, IV/3
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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