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. 1990 Mar;172(3):1676–1680. doi: 10.1128/jb.172.3.1676-1680.1990

Isolation of Rhizobium phaseoli Tn5-induced mutants with altered expression of cytochrome terminal oxidases o and aa3.

M Soberón 1, J Membrillo-Hernández 1, G R Aguilar 1, F Sánchez 1
PMCID: PMC208651  PMID: 2155209

Abstract

Two Rhizobium phaseoli mutants affected in cytochrome expression were obtained by Tn5-mob mutagenesis of the wild-type strain (CE3). Mutant strain CFN031 expressed sevenfold less cytochrome o in culture, expressed cytochrome aa3 under microaerophilic culture conditions, in contrast to strain CE3, and was affected in its vegetative growth properties and proliferation inside plant host cells. Mutant CFN037 expressed cytochrome aa3 under microaerophilic culture conditions, while bacteroid development and nitrogen fixation occurred earlier than in strain CE3.

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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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