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Journal of Bacteriology, December 2005, p. 8489-8493, Vol. 187, No. 24
0021-9193/05/$08.00+0     doi:10.1128/JB.187.24.8489-8493.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Regulation by hetC of Genes Required for Heterocyst Differentiation and Cell Division in Anabaena sp. Strain PCC 7120

Yu Wang and Xudong Xu*

The State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, People's Republic of China

Received 25 May 2005/ Accepted 15 September 2005

Unlike those of the wild-type strain, proheterocysts of the Anabaena sp. strain PCC 7120 hetC strain keep dividing. ftsZ, the most critical cell division gene, is up-regulated in hetC proheterocysts. Heterocyst differentiation genes hglD, hglE, patB, nifB, and xisA are no longer expressed in the hetC mutant. hetC also regulates the expression of patA, a pattern formation gene.

* Corresponding author. Mailing address: Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei, 430072, People's Republic of China. Phone: 86(27) 68780659. Fax: 86(27) 68780123. E-mail: xux{at}ihb.ac.cn.

Journal of Bacteriology, December 2005, p. 8489-8493, Vol. 187, No. 24
0021-9193/05/$08.00+0     doi:10.1128/JB.187.24.8489-8493.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

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  • Wang, Y., Lechno-Yossef, S., Gong, Y., Fan, Q., Wolk, C. P., Xu, X. (2007). Predicted Glycosyl Transferase Genes Located outside the HEP Island Are Required for Formation of Heterocyst Envelope Polysaccharide in Anabaena sp. Strain PCC 7120. J. Bacteriol. 189: 5372-5378 [Abstract] [Full Text]  
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