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2012 | 34 | 5 |
Tytuł artykułu

Seasonal low temperature plays an important role in increasing metabolic content of secondary metabolites in Withania somnifera (L.) Dunal and affects the time of harvesting

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
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.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
34
Numer
5
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
  • Abraham A, Kirson I, Glotter E, Lavie D (1968) A chemotaxonomic study of Withania somnifera (L.) Dun. Phytochemistry 7:957–962
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  • Brown PD, Tokuhisa JG, Reichelt M, Gershenzon J (2003) Variation of glucosinolate accumulation among different organs and developmental stages of Arabidopsis thaliana. Phytochemistry 62:471–481
  • Budhiraja RD, Krishan P, Sudhir S (2000) Biological activity of withanolides. J Sci Indust Res 59:904–911
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  • Gupta GL, Rana AC (2007) Withania somnifera (ashwagandha): a review. Pharmacogn Rev 1:129–136
  • 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
  • Kour K, Pandey A, Suri KA, Satti NA, Gupta KK, Bani S (2009) Restoration of stress induced altered T cell function and corresponding cytokines patterns by withanolide A. Int Immunopharmacol 9:1137–1144
  • Kumar A, Kaul BL, Verma HK (2001) Phenological observations on root yield and chemical composition in different morphotypes of Withania somnifera. J Med Aro Plant Sci 23:21–23
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  • Kumar A, Kaul MK, Khanna PK, Koul S, Suri KA (2010) Comparative assessment of growth productivity and chemical profiling of wild and cultivated populations of Withania somnifera (L.) Dunal. In: Gupta VK, Verma AK, Kaul S (eds) Utilisation and management of medicinal plants. Daya Publishing House, New Delhi, pp 183–201
  • Kumar A, Mir BA, Sehgal D, Dar TH, Koul S, Kaul MK, Raina SN, Qazi GN (2011) Utility of multidisciplinary approach for genome diagnostics of cultivated and wild germplasm resources of medicinal Withania somnifera, and the status of new species, W. ashwagandha, in the cultivated taxon. Plant Syst Evol 291:141–151
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  • Malik F, Singh J, Khajuria A, Suri KA, Satti NK, Singh S, Kaul MK, Kumar A, Bhatia A, Qazi GN (2007) A standardized root extract of Withania somnifera and its major constituent withanolide-A elicit humoral and cell mediated immune response by up regulation of Th1-dominant polarization in BALB/c mice. Life Sci 80:1525–1538
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  • Pandey AK, Chawdhry PK (2006) Propogation techniques and harvesting time on productivity and root quality of Withania somnifera. J Trop Med Plants 7:79–81
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  • Tripathi AK, Sukla YN, Kumar S (1996) Ashwagandha Withania somnifera Dunal (Solanaceae): a status report. J Med Aro Plant Sci 23:21–23
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