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Kaiser WM, Bassham JA. Carbon metabolism of chloroplasts in the dark: Oxidative pentose phosphate cycle versus glycolytic pathway. Planta. 1979;144(2):193-200doi: 10.1007/BF00387270.
Kaiser, W. M., & Bassham, J. A. (1979). Carbon metabolism of chloroplasts in the dark: Oxidative pentose phosphate cycle versus glycolytic pathway. Planta, 144(2), 193-200. https://doi.org/10.1007/BF00387270
Kaiser, W M, and Bassham, J A. "Carbon metabolism of chloroplasts in the dark: Oxidative pentose phosphate cycle versus glycolytic pathway." Planta vol. 144,2 (1979): 193-200. doi: https://doi.org/10.1007/BF00387270
Kaiser WM, Bassham JA. Carbon metabolism of chloroplasts in the dark: Oxidative pentose phosphate cycle versus glycolytic pathway. Planta. 1979 Jan;144(2):193-200. doi: 10.1007/BF00387270. PMID: 24408693.
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Planta. 1979 Jan;144(2):193-200. doi: 10.1007/BF00387270.

Carbon metabolism of chloroplasts in the dark: Oxidative pentose phosphate cycle versus glycolytic pathway.

Planta

W M Kaiser, J A Bassham

Affiliations

  1. Laboratory of Chemical Biodynamics, Lawrence Berkeley Laboratory, University of California, 94720, Berkeley, CA, USA.

PMID: 24408693 DOI: 10.1007/BF00387270

Abstract

The conversion of U-labelled [(14)C]glucose-6-phosphate into other products by a soluble fraction of lysed spinach chloroplasts has been studied. It was found that both an oxidative pentose phosphate cycle and a glycolytic reaction sequence occur in this fraction. The formation of bisphosphates and of triose phosphates was ATP-dependent and occurred mainly via a glycolytic reaction sequence including a phosphofructokinase step. The conversion, of glucose-6-phosphate via the oxidative pentose phosphate cycle stopped with the formation of pentose monophosphates. This was found not to be because of a lack in transaldolase (or transketolase) activity, but because of the high concentration ratios of hexose monophosphate/pentose monophosphate used in our experiments for simulating the conditions in whole chloroplasts in the dark. Some regulatory properties of both the oxidative pentose phosphate cycle and of the glycolytic pathway were studied.

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