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. 1987 Sep;85(1):26–29. doi: 10.1104/pp.85.1.26

Contiguous Organization of Nitrogenase Genes in a Heterocystous Cyanobacterium 1

Barry Saville 1, Neil Straus 1, John R Coleman 1
PMCID: PMC1054196  PMID: 16665666

Abstract

The organization of the three structural nitrogen fixation (nif) genes that encode nitrogenase (nif K and nif D) and nitrogenase reductase (nif H) have been examined in a number of cyanobacteria. Hybridization of Anabaena 7120 nif gene probes to restriction endonuclease-digested genomic DNA has shown (a) that cyanobacteria incapable of N2 fixation have no regions of DNA with significant homology to the three nif probes, (b) that Pseudanabaena sp., a nonheterocystous cyanobacterium, has a contiguous nif KDH gene cluster, and (c) that in contrast with other heterocystous cyanobacteria, Fischerella sp. has a contiguous nif KDH gene cluster.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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