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Journal of Bacteriology, September 2006, p. 6688-6693, Vol. 188, No. 18
0021-9193/06/$08.00+0     doi:10.1128/JB.01669-05
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

Signal Transduction Genes Required for Heterocyst Maturation in Anabaena sp. Strain PCC 7120

Qing Fan,1,{dagger} Sigal Lechno-Yossef,1 Shigeki Ehira,2 Takakazu Kaneko,3 Masayuki Ohmori,2 Naoki Sato,4 Satoshi Tabata,3 and C. Peter Wolk1,5*

MSU-DOE Plant Research Laboratory,1 Department of Plant Biology, Michigan State University, East Lansing, Michigan,5 Department of Biochemistry and Molecular Biology, Faculty of Science, Saitama University, Saitama 338-8570, Japan,2 Kazusa DNA Research Institute, Kisarazu, Chiba, Japan,3 Department of Life Sciences, Graduate School of Arts and Sciences, University of Tokyo, Tokyo, Japan4

Received 1 November 2005/ Accepted 29 June 2006

How heterocyst differentiation is regulated, once particular cells start to differentiate, remains largely unknown. Using near-saturation transposon mutagenesis and testing of transposon-tagged loci, we identified three presumptive regulatory genes not previously recognized as being required specifically for normal heterocyst maturation. One of these genes has a hitherto unreported mutant phenotype. Two previously identified regulatory genes were further characterized.

* Corresponding author. Mailing address: MSU-DOE Plant Research Laboratory, Michigan State University, East Lansing, MI 48824-1312. Phone: (517) 353-2049. Fax: (517) 353-9168. E-mail: wolk{at}msu.edu.

{dagger} Present address: Northwestern University Feinberg School of Medicine, 303 East Chicago Avenue, Chicago, IL 60611-3008.

Journal of Bacteriology, September 2006, p. 6688-6693, Vol. 188, No. 18
0021-9193/06/$08.00+0     doi:10.1128/JB.01669-05
Copyright © 2006, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Jang, J., Shi, L., Tan, H., Janicki, A., Zhang, C.-C. (2009). Mutual Regulation of ntcA and hetR during Heterocyst Differentiation Requires Two Similar PP2C-Type Protein Phosphatases, PrpJ1 and PrpJ2, in Anabaena sp. Strain PCC 7120. J. Bacteriol. 191: 6059-6066 [Abstract] [Full Text]  
  • 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]  
  • Flores, E., Pernil, R., Muro-Pastor, A. M., Mariscal, V., Maldener, I., Lechno-Yossef, S., Fan, Q., Wolk, C. P., Herrero, A. (2007). Septum-Localized Protein Required for Filament Integrity and Diazotrophy in the Heterocyst-Forming Cyanobacterium Anabaena sp. Strain PCC 7120. J. Bacteriol. 189: 3884-3890 [Abstract] [Full Text]  
  • Lechno-Yossef, S., Fan, Q., Ehira, S., Sato, N., Wolk, C. P. (2006). Mutations in Four Regulatory Genes Have Interrelated Effects on Heterocyst Maturation in Anabaena sp. Strain PCC 7120. J. Bacteriol. 188: 7387-7395 [Abstract] [Full Text]  


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