Mutation of an Alternative Sigma Factor in the Cyanobacterium Nostoc punctiforme Results in Increased Infection of Its Symbiotic Plant Partner, Anthoceros punctatus-Reference-Cited by-同舟云学术

Mutation of an Alternative Sigma Factor in the Cyanobacterium Nostoc punctiforme Results in Increased Infection of Its Symbiotic Plant Partner, Anthoceros punctatus

Published:1998-09-15 Issue:18 Volume:180 Page:4938-4941
ISSN:0021-9193
Container-title:Journal of Bacteriology
language:en
Short-container-title:J Bacteriol

Author:

Campbell Elsie Lin¹,Brahamsha Bianca²,Meeks John C.¹

Affiliation:

1. Section of Microbiology, Division of Biological Sciences, University of California, Davis, California 95616,1 and

2. Marine Biology Research Division, Scripps Institution of Oceanography, University of California at San Diego, La Jolla, California 92093-02022

Abstract

ABSTRACT An alternative group 2 sigma factor was identified in the nitrogen-fixing, symbiotically competent cyanobacterium Nostoc punctiforme and designated sigH . Transcription of sigH was specifically induced within 1.5 h following exposure of N. punctiforme to its symbiotic plant partner, Anthoceros punctatus . A mutation in sigH resulted in a sixfold-higher initial infection of A. punctatus tissue without a parallel increase in nitrogen-fixing activity.

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

Link

https://journals.asm.org/doi/pdf/10.1128/JB.180.18.4938-4941.1998

Reference19 articles.

1. Identification of multiple RNA polymerase sigma factor homologs in the cyanobacterium Anabaena sp. strain PCC 7120: cloning, expression, and inactivation of the sigB and sigC genes

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5. Transposon mutagenesis of Nostoc sp. strain ATCC 29133, a filamentous cyanobacterium with multiple cellular differentiation alternatives;Cohen M. F.;Microbiology,1994

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