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. 1987 Apr;83(4):728-31.
doi: 10.1104/pp.83.4.728.

Frankia vesicles provide inducible and absolute oxygen protection for nitrogenase

R Parsons  1 , W B Silvester, S Harris, W T Gruijters, S Bullivant
Affiliations

Frankia vesicles provide inducible and absolute oxygen protection for nitrogenase

R Parsons et al. Plant Physiol. 1987 Apr.

Abstract

When Frankia HFPCcI3 was grown in culture at oxygen O(2) levels ranging from 2 to 70 kilopascals O(2), under nitrogen fixing conditions, nitrogenase activity adapted to ambient pO(2) and showed a marked optimum close to growth pO(2). Vesicles were thin walled at low pO(2) and very thick walled at high pO(2). Freeze fracture transmission electron microscopy confirmed that Frankia produces vesicles with outer walls thickened by multiple lipid-like monolayers, in proportion to ambient pO(2).

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References

    1. Appl Environ Microbiol. 1984 Mar;47(3):449-54 - PubMed
    1. Annu Rev Microbiol. 1980;34:183-207 - PubMed
    1. Arch Microbiol. 1984 Oct;139(2-3):162-6 - PubMed
    1. J Bacteriol. 1983 Jan;153(1):182-90 - PubMed
    1. Proc R Soc Lond B Biol Sci. 1972 Jun 6;181(1063):199-209 - PubMed

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