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. 1981 Oct;68(4):974–978. doi: 10.1104/pp.68.4.974

Contributions of Respiratory and Photosynthetic Pathways during Growth of a Facultative Photoautotrophic Cyanobacterium, Aphanocapsa 6714 1

Maurice Der-Vartanian 1,2, Francoise Joset-Espardellier 1, Chantal Astier 1
PMCID: PMC426023  PMID: 16662036

Abstract

Comparison of the growth parameters and photosynthetic capacities of cells of Aphanocapsa 6714 under various growth conditions led to the following conclusions: (a), no enzymic regulation of CO2/glucose assimilation takes place in this strain; (b), functioning of photodependent phosphorylating pathways turns off oxidative ATP synthesis; (c), no efficient regulation of pigment synthesis exists in these cells; (d), most modulations of photosynthetic activities probably occur through structural modifications of the photosynthetic membranes (a small proportion of the pigments might appear as a nonintegrated pool in the cell and be sensitive to synthesis regulation); and (e), photosystem II activity would be dependent on light intensity in a discontinuous way, the consequence of this property being the appearance of two successive exponential phases during phototrophic growth in adequate light conditions.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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