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Article

Early candidacy for differentiation into heterocysts in the filamentous cyanobacterium Anabaena sp. PCC 7120.

Archives of microbiology - 1 Jan 2010

Toyoshima Masakazu, Sasaki Naobumi V, Fujiwara Makoto, Ehira Shigeki, Ohmori Masayuki, Sato Naoki

Abstract excerpt

The filamentous cyanobacterium Anabaena sp. PCC 7120 fixes dinitrogen facultatively. Upon depletion of combined nitrogen, about 10% of vegetative cells within the filaments differentiate terminally into nitrogen-fixing cells. The heterocyst has been studied as a model system of prokaryotic cell differentiation, with major focus on signal transduction and pattern formation. The fate of heterocyst differentiation...

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PMID: 19911166
DOI: 10.1007/s00203-009-0525-4

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Early candidacy for differentiation into heterocysts in the filamentous cyanobacterium Anabaena sp. PCC 7120.PMID 19911166Read ↗

Role for hetC in the transition to a nondividing state during heterocyst differentiation in Anabaena sp.Semantic proximity Read ↗

PatS and products of nitrogen fixation control heterocyst pattern.Semantic proximity Read ↗

Heterocyst formation.Semantic proximity Read ↗

Phenotypic Assessment Suggests Multiple Start Codons for HetN, an Inhibitor of Heterocyst Differentiation, in Anabaena sp. Strain PCC 7120.Semantic proximity Read ↗

The Anabaena sp. strain PCC 7120 asr1734 gene encodes a negative regulator of heterocyst development.Semantic proximity Read ↗

A gene cluster that regulates both heterocyst differentiation and pattern formation in Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

Mutation of sepJ reduces the intercellular signal range of a hetN-dependent paracrine signal, but not of a patS-dependent signal, in the filamentous cyanobacterium Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

NtcA-regulated heterocyst differentiation genes hetC and devB from Anabaena sp. strain PCC 7120 exhibit a similar tandem promoter arrangement.Semantic proximity Read ↗

ppGpp metabolism is involved in heterocyst development in the cyanobacterium Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

Role of two NtcA-binding sites in the complex ntcA gene promoter of the heterocyst-forming cyanobacterium Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

Heterocyst-specific expression of patB, a gene required for nitrogen fixation in Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

Establishment of a functional symbiosis between the cyanobacterium Nostoc punctiforme and the bryophyte Anthoceros punctatus requires genes involved in nitrogen control and initiation of heterocyst differentiation.Semantic proximity Read ↗

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