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Indian J Exp Biol ; 2003 Apr; 41(4): 352-6
Artículo en Inglés | IMSEAR | ID: sea-62115

RESUMEN

Exogenous abscisic acid (ABA) inhibited the germination of B. juncea seeds in a concentration dependent manner. As revealed in a time-course study, the ABA-induced inhibition got progressively alleviated with the lapse of time following ABA treatment possibly due to metabolic conversion of applied ABA in the seed tissue. A simultaneous application of certain phenolic compounds namely, p-coumaric-, vanillic-, gallic-, and chlorogenic acid (but not caffeic acid) also caused an alleviation of ABA effect. Of the above two patterns of recovery, the phenolic-dependent alleviation of ABA effect was apparent much earlier (24-48 hr treatment) than the time-dependent one (72 hr). It is likely that phenolics could accelerate ABA metabolism in the seed tissue leading to an early recovery from ABA-induced inhibition.


Asunto(s)
Ácido Abscísico/farmacología , Germinación/efectos de los fármacos , Planta de la Mostaza/efectos de los fármacos , Fenoles/farmacología , Semillas/efectos de los fármacos , Factores de Tiempo
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