Stimulation of enzymes of non-photosynthetic C4 metabolism in cultured cotton ovules by fluridone [cotton fibre growth]
1990
Kaur, K. | Nayyar, H. | Basra, A.S. | Malik, C.P. (Punjab Agricultural University, Ludhiana (India). Dept. of Botany)
Fertlized cotton ovules cultured in the presence of fluridone, an inhibitor of abscisic acid biosynthesis responded, with the marked increase in the activities of phosphoenolpyruvate carboxylase, NAD-malate dehydrogenase, glutamate-oxaloacetate transaminase and NADP-malic enzyme. A concomitant increase in fibre growth capacity of the ovules was also observed. Abscisic acid lowered the ability of ovules for non-photosynthetic C4 metabolism by causing enzyme inhibition and consequently the fibre growth was also retarded
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