HcwA, an autolysin, is required for heterocyst maturation in Anabaena sp. strain PCC 7120.

@article{Zhu2001HcwAAA,
  title={HcwA, an autolysin, is required for heterocyst maturation in Anabaena sp. strain PCC 7120.},
  author={Jia-bi Zhu and Karin M J{\"a}ger and Timothy Black and Kelly A. Zarka and Olga A Koksharova and Coleman Peter Wolk},
  journal={Journal of bacteriology},
  year={2001},
  volume={183 23},
  pages={6841-51}
}
In many filamentous cyanobacteria, vegetative cells can differentiate into heterocysts, cells that are specialized for aerobic fixation of N(2). Synthesis of the heterocyst envelope polysaccharide is dependent on the gene hepA in Anabaena sp. strain PCC 7120. In search of genes that are involved in the regulation of hepA, we transposon mutagenized strain DR1069, which bears a chromosomal hepA::luxAB fusion. One resulting mutant, designated HNL3, grows normally in medium with nitrate and shows… CONTINUE READING