High stilbenes accumulation in root cultures of Cayratia trifolia (L.) Domin grown in shake flasks
2009
Arora, Jaya | Roat, Chetana | Goyal, Shaily | Ramawat, Kishan G.
The Root cultures of Cayratia trifolia (Vitaceae) a tropical lianas, were maintained in liquid Murashige and Skoog's medium containing 0.5 mg l⁻¹ NAA, 0.1 mg l⁻¹ kinetin with 3% sucrose. These root cultures when grown with 6% sucrose accumulated stilbenes (piceid, resveratrol, viniferin, ampelopsin) in high amounts, which on elicitation by 500 mg l⁻¹ yeast extract, 50 μM salicylic acid (SA), 50 μM methyl jasmonate (MeJa), 500 μM ethrel added at 25th day, increased up to ninefolds (7.1 mg l⁻¹). Addition of alar or phenylalanine along with the elicitors further enhanced the stilbenes content. In the present study, stilbenes accumulation up to 12 folds (9.2 mg l⁻¹) was obtained with SA and alar. The SA was the most effective in increasing the stilbenes contents while less than control values were recorded in the cells treated with MeJa. The roots could be grown up to 2 l flasks. The present work demonstrates that presence of precursor and sucrose during elicitation at an appropriate time combined with growth retardation significantly increased the production of stilbenes in C. trifolia cell cultures.
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