Warianty tytułu
Języki publikacji
Abstrakty
Withania somnifera (L.) Dunal is a subtropical crop which is widely used in traditional medicine owing to the presence of root bioactives called withanolides. In the present study, phenological variation in withanolide content in roots and leaves was determined at various days after plantation (DAP). Results showed that during the full vegetative state, the amount of marker secondary metabolites viz., withanolide A (Wd-A) and withanone (Wn), increased significantly (p ≤ 0.05) more than early vegetative state (8.16 and 3.2 times, respectively) and maturity stage (54 and 1.33 times, respectively). To qualify the role of temperature per se in enhancing secondary metabolite content, plants during full vegetative stage were exposed to temperature similar to lowest minimum temperature found during the growing period (8°C). During recovery, the metabolic content of secondary metabolites again fell to the level of plants growing at 25°C. This indicated that seasonal temperature played a key role in increasing secondary metabolites rather than the phenological stage of the plant. The physiological importance of this increase in harvesting and its balance with biomass yield has further been discussed.
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Tom
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Opis fizyczny
p.2027-2031,fig.,ref.
Twórcy
autor
- Biodiversity and Applied Botany Division, Indian Institute of Integrative Medicine, Canal Road, 180001 Jammu, India
autor
- Biodiversity and Applied Botany Division, Indian Institute of Integrative Medicine, Canal Road, 180001 Jammu, India
autor
- Biodiversity and Applied Botany Division, Indian Institute of Integrative Medicine, Canal Road, 180001 Jammu, India
autor
- Biodiversity and Applied Botany Division, Indian Institute of Integrative Medicine, Canal Road, 180001 Jammu, India
Bibliografia
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- Baldi A, Singh D, Dixit VK (2008) Dual elicitation for improved production of withaferin A by cell suspension cultures of Withania somnifera. App Biochem Biotechnol 151:556–564
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- Janská A, Marška P, Zelenková S, Ovesnǎ J (2010) Cold stress and acclimation—what is important for metabolic adjustment? Plant Biol 12:395–405
- Khajuria RK, Suri KA, Gupta RK, Satti NK, Amina M, Suri OP, Qazi GN (2004) Separation, identification and quantification of selected withanolides in plant extracts of Withania somnifera by HPLC-UV (DAD)-positive ion electroscopy ionization-mass spectrometry. J Sep Sci 27:541–546
- Kothari SK, Singh CP, Kumar YV, Singh K (2003) Morphology, yield and quality of ashwagandha (Withania somnifera L. Dunal) roots and its cultivation economics as influenced by tillage depth and plant population density. J Hort Sci Biotechnol 78:422–425
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