ArticleJournal of bacteriology2003
Heterocyst-specific expression of patB, a gene required for nitrogen fixation in Anabaena sp. strain PCC 7120.
Article in Journal of bacteriology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 57 citations in OpenAlex.
- The Molecular Toolset and Techniques Required to Build Cyanobacterial Cell Factories.Advances in biochemical engineering/biotechnology · 2023Article
- Interaction network among factors involved in heterocyst-patterning in cyanobacteria.Molecular genetics and genomics : MGG · 2022Article
- Cross-Activation of Two Nitrogenase Gene Clusters by CnfR1 or CnfR2 in the Cyanobacterium Anabaena variabilis.Microbiology spectrum · 2021Article
- Rapid Transcriptional Reprogramming Triggered by Alteration of the Carbon/Nitrogen Balance Has an Impact on Energy Metabolism inLife (Basel, Switzerland) · 2020Article
- Overproduction of the Flv3B flavodiiron, enhances the photobiological hydrogen production by the nitrogen-fixing cyanobacterium Nostoc PCC 7120.Microbial cell factories · 2020Article
- Role of the nifB1 and nifB2 Promoters in Cell-Type-Specific Expression of Two Mo Nitrogenases in the Cyanobacterium Anabaena variabilis ATCC 29413.Journal of bacteriology · 2017Article
- Diazotrophic specific cytochrome c oxidase required to overcome light stress in the cyanobacterium Nostoc muscorum.World journal of microbiology & biotechnology · 2016Article
- Regulation of Three Nitrogenase Gene Clusters in the Cyanobacterium Anabaena variabilis ATCC 29413.Life (Basel, Switzerland) · 2014Review
- Article
- Transcriptional regulators ChlR and CnfR are essential for diazotrophic growth in nonheterocystous cyanobacteria.Proceedings of the National Academy of Sciences of the United States of America · 2014Article
- Article
- Mutations in genes patA and patL of Anabaena sp. strain PCC 7120 result in similar phenotypes, and the proteins encoded by those genes may interact.Journal of bacteriology · 2011Article
- Nitrogen fixation and hydrogen metabolism in cyanobacteria.Microbiology and molecular biology reviews : MMBR · 2010Review
- Article
- Compartmentalized function through cell differentiation in filamentous cyanobacteria.Nature reviews. Microbiology · 2010Review
- Regulation by hetC of genes required for heterocyst differentiation and cell division in Anabaena sp. strain PCC 7120.Journal of bacteriology · 2005Article
- Different functions of HetR, a master regulator of heterocyst differentiation in Anabaena sp. PCC 7120, can be separated by mutation.Proceedings of the National Academy of Sciences of the United States of America · 2004Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
The patB gene product is required for growth and survival of the filamentous cyanobacterium Anabaena sp. strain PCC 7120 in the absence of combined nitrogen. A patB::gfp fusion demonstrated that this gene is expressed exclusively in heterocysts. patB mutants have a normal initial pattern of heterocyst spacing along the filament but differentiate excess heterocysts after several days in the absence of combined nitrogen. Expression of hetR and patS, two critical regulators of the heterocyst development cascade, are normal for patB mutants, indicating that patB acts downstream of them in the differentiation pathway. A patB deletion mutant suffers an almost complete cessation of growth and nitrogen fixation within 24 h of combined nitrogen removal. In contrast, a new PatB mutant that is defective in its N-terminal ferredoxin domain, or a previously described mutant that has a frameshift removing its C-terminal helix-turn-helix domain, grows very slowly and differentiates multiple contiguous heterocysts under nitrogen-deficient conditions.
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Registered trials
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