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Dehydrogenases and isocitrate lyase activity during pollen germination inCalotropis procera

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Proceedings / Indian Academy of Sciences

Abstract

Isocitrate lyase (ICL) activity is described in the quiescent and germinating pollen ofCalotropis procera. The behaviour of the enzyme depended upon the presence or absence of exogenous substrate. The activity of this enzyme in relation to some dehydrogenases (MDH; ICDH; G-6-PDH) is compared. Effects of actinomycin-D and cycloheximide on the activity of different enzymes is described. The increase in the activity of ICL and G-6-PDH, during the activation phase, is attributed to theirde novo synthesis. The possibility of sucrose in causing repressing effects on ICL synthesis and/or activation is brought out.

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Authors and Affiliations

  1. Department of Botany, Punjab Agricultural University, 141 004, Ludhiana

    C P Malik & M B Singh

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  1. C P Malik
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  2. M B Singh
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Malik, C.P., Singh, M.B. Dehydrogenases and isocitrate lyase activity during pollen germination inCalotropis procera . Proc. Indian Acad. Sci. 86, 371–374 (1977). https://doi.org/10.1007/BF03051364

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  • DOI: https://doi.org/10.1007/BF03051364

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