PMID: 2493445Mar 1, 1989Paper

Occurrence and distribution of gas vesicle genes among cyanobacteria

Journal of Bacteriology
T. DamervalN Tandeau de Marsac

Abstract

Gas vesicles (GV) are specialized cell inclusions providing many aquatic procaryotes with buoyancy. In the cyanobacterium Calothrix sp. strain PCC 7601, at least four genes are involved in GV formation. One of those, gvpA1, encodes the major structural GV protein (70 amino acids) and belongs to a multigene family (gvpA1, gvpA2, gvpD). The fourth gene, gvpC, encodes a 162-amino-acid protein, the function of which is still unclear. We used the Calothrix gvpA1 and gvpC genes as probes to perform Southern hybridization experiments with DNA extracted from various cyanobacterial strains. The gvpA gene was found in all the strains that synthesize GV, indicating that its product is an obligatory component of GV. Furthermore, it was found to occur as multiple copies in most of the strains tested. The gvpC gene was only detected in some strains able to synthesize a large amount of GV within a short period. This suggests that the gvpC gene product is a dispensable protein for GV formation and is involved in the efficiency of the assembly process. Based on the occurrence of the gvp genes and on DNA-DNA hybridization patterns, genus assignments are discussed.

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Citations

Dec 24, 2013·BMC Biotechnology·Shiladitya DasSarmaBarbara Smith
Oct 23, 1997·Proceedings of the National Academy of Sciences of the United States of America·C Richaud, G Zabulon
Jan 1, 1992·Archives of Microbiology·P K HayesA E Walsby
Sep 17, 2009·Applied Microbiology and Biotechnology·Martin SakerVitor Manuel Vasconcelos
Mar 27, 2002·DNA Sequence : the Journal of DNA Sequencing and Mapping·D AlbouyN T De Marsac
Jul 1, 1995·Archives of Microbiology·P K Hayes, R S Powell
Nov 18, 2003·Annual Review of Genetics·J L DittyS S Golden
Mar 19, 2005·International Journal of Systematic and Evolutionary Microbiology·Christina LyraKaarina Sivonen
May 1, 1990·Journal of Bacteriology·D MazelN Tandeau de Marsac
Mar 1, 1994·Microbiological Reviews·A E Walsby

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