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Diurnal variation of 3-hydroxy-3-methylglutaryl coenzyme A reductase activity in latex ofHevea brasiliensis and its relation to rubber content

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  • Biochemistry and Biophysics, Metabolism, Neurobiology, Pharmacology
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Sammary

Temporal variation of HMG-CoA reductase activity in latex ofHevea brasiliensis was investigated. The latex enzyme showed diurnal variation of activity during a 24-h cycle. Peak activity occurred around sunset (18.00 h) and was approximately 2-fold above basal level during the daylight period. Rubber content in the latex also varied diurnally in a pattern similar to the variation of HMG-CoA reductase activity. Two clonal types used in the study (RRIM 600 and KRS 21) showed the same variation patterns. The results suggested a possible correlation between rubber biosynthesis and the regulation of HMG-CoA reductase activity.

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Authors and Affiliations

  1. Department of Biochemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, 90110, Songkla, Thailand

    R. Wititsuwannakul

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  1. R. Wititsuwannakul
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Acknowledgment. This work was supported by the International Foundation for Science (F 614). The author thanks Prof. D.W. Krogman for helping on the manuscript.

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Wititsuwannakul, R. Diurnal variation of 3-hydroxy-3-methylglutaryl coenzyme A reductase activity in latex ofHevea brasiliensis and its relation to rubber content. Experientia 42, 44–45 (1986). https://doi.org/10.1007/BF01975887

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  • DOI: https://doi.org/10.1007/BF01975887

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