Planta Med 1976; 29(1): 37-40
DOI: 10.1055/s-0028-1097626
© Georg Thieme Verlag Stuttgart · New York

EFFECT OF GAMMA IRRADIATION ON BIOSYNTHETIC POTENTIAL OF CALLUS CULTURES OF TYLOPHORA INDICA

B. D. Benjamin, N. B. Mulchandani
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Publication Date:
13 January 2009 (online)

Abstract

The irradiation of callus cultures of Tylophora indica with gamma rays at different doses viz. 140, 280, 560, 840 and 2240r at dose rate of 140r per hour failed to induce alkaloid synthesis in vitro. The number of lignified elements increased due to radiation which resulted in the formation of a phenolic flavonoid namely quercetin in case of the tissue irradiated at higher dose of 2240r. The synthesis of terpenoidal and steroidal constituents in the tissue decreased with increasing dose of radiation.