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A simple photorespiratory ratio for the delimitation of C4 from the C3 plants

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Proceedings / Indian Academy of Sciences

Abstract

A simple technique for the determination of photorespiratory ratio was devised and was tested for its applicability in the screening for photosynthetic systems. The C4 plants gave a photorespiratory ratio around 0·11 while in the C3 plants the corresponding ratio was 0·41. The photorespiratory ratios were also well correlated with the characteristic differences in the leaf anatomy and interveinal distances between the C4 and C3 plants. By using the photorespiratory ratio, four species ofCymbopogon hitherto unreported are now shown to possess the C4 system.

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Authors and Affiliations

  1. Department of Botany, Sri Venkateswara University, 517 502, Tirupati

    V. S. Rama Das F.A.Sc & G. Rajendrudu

Authors
  1. V. S. Rama Das F.A.Sc
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  2. G. Rajendrudu
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Rama Das, V.S., Rajendrudu, G. A simple photorespiratory ratio for the delimitation of C4 from the C3 plants. Proc. Indian Acad. Sci. 84, 148–153 (1976). https://doi.org/10.1007/BF03045534

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  • DOI: https://doi.org/10.1007/BF03045534

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