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Soil Science Society of America Journal Abstract -

Nitrogen Fixation by Bacteria in the Root Zone of Rice1

 

This article in SSSAJ

  1. Vol. 35 No. 1, p. 156-158
     
    Received: July 29, 1970
    Accepted: Oct 22, 1970


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doi:10.2136/sssaj1971.03615995003500010047x
  1. T. Yoshida and
  2. Rosabel R. Ancajas2

Abstract

Abstract

Atmospheric nitrogen is fixed in the root zone of rice plants (Oryza sativa L.). Acetylene-ethylene assay showed that bacteria, rather than the root tissues, do the fixation. Although the root tissues produce a trace of ethylene, they cannot reduce acetylene to ethylene. The apparent Km (Michaelis constant) of acetylene was much higher than values from known nitrogenfixing bacteria.

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