Open AccessIs cell motility a plasmid‐encoded function in the cyanobacterium Synechocystis 6803?
Author(s) -
Castets AnneMarie,
Houmard Jean,
Tandeau de Marsac Nicole
Publication year - 1986
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1986.tb01808.x
Subject(s) - plasmid , motility , biology , function (biology) , homologous chromosome , cell , dna , microbiology and biotechnology , genetics , gene
The unicellular facultatively heterotrophic cyanobacterium Synechocystis 6803 harbors 4 plasmids, pSY1–4, of 2.5, 5.2, 50 and 100 kb, respectively. We observed that the loss of the pSY2 plasmid and that of cell motility occurs at a high frequency. However, we showed that there is no direct correlation between these two phenomena, and that cell motility does not require a pSY2‐encoded function. In addition, restriction analysis and hybridization experiments showed that pSY1 and pSY2 share no homologous DNA sequences.