Role for hetC in the Transition to a Nondividing State during Heterocyst Differentiation in Anabaena sp
Open Access
- 1 January 2001
- journal article
- Published by American Society for Microbiology in Journal of Bacteriology
- Vol. 183 (1) , 2567-2573
- https://doi.org/10.1128/jb.183.1.393-396.2001
Abstract
Nitrogen-deprived filaments of wild-type or hetC Anabaena sp. produce respectively, at semiregular intervals, heterocysts and weakly fluorescent cells. Unlike heterocysts, the latter cells can divide and elongate, producing a pattern of spaced series of small cells. Because a hetR :: gfp fusion is expressed most strongly in the small cells, we propose that these small cells represent a very early stage of heterocyst differentiation. hetC :: gfp is expressed most strongly in proheterocysts and heterocysts.Keywords
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