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Article

FraH is required for reorganization of intracellular membranes during heterocyst differentiation in Anabaena sp. strain PCC 7120.

Journal of bacteriology - 1 Dec 2011

Merino-Puerto Victoria, Mariscal Vicente, Schwarz Heinz, Maldener Iris, Mullineaux Conrad W, Herrero Antonia, Flores Enrique

Abstract excerpt

In the filamentous, heterocyst-forming cyanobacteria, two different cell types, the CO(2)-fixing vegetative cells and the N(2)-fixing heterocysts, exchange nutrients and regulators for diazotrophic growth. In the model organism Anabaena sp. strain PCC 7120, inactivation of fraH produces filament fragmentation under conditions of combined nitrogen deprivation, releasing numerous isolated heterocysts. Transmission...

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Identifiers

PMID: 21949079
DOI: 10.1128/JB.05995-11
PMCID: PMC3232833

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

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FraH is required for reorganization of intracellular membranes during heterocyst differentiation in Anabaena sp. strain PCC 7120.PMID 21949079Read ↗

A short-filament mutant of Anabaena sp. strain PCC 7120 that fragments in nitrogen-deficient medium.Semantic proximity Read ↗

Requirement of Fra proteins for communication channels between cells in the filamentous nitrogen-fixing cyanobacterium Anabaena sp. PCC 7120.Semantic proximity Read ↗

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

Inactivation of a heterocyst-specific invertase indicates a principal role of sucrose catabolism in heterocysts of Anabaena sp.Semantic proximity Read ↗

Septum-localized protein required for filament integrity and diazotrophy in the heterocyst-forming cyanobacterium Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

Anabaena sp. strain PCC 7120 gene devH is required for synthesis of the heterocyst glycolipid layer.Semantic proximity Read ↗

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

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

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

Specific Glucoside Transporters Influence Septal Structure and Function in the Filamentous, Heterocyst-Forming Cyanobacterium Anabaena sp. Strain PCC 7120.Semantic proximity Read ↗

Anabaena sp. strain PCC 7120 conR contains a LytR-CpsA-Psr domain, is developmentally regulated, and is essential for diazotrophic growth and heterocyst morphogenesis.Semantic proximity Read ↗

FraG is necessary for filament integrity and heterocyst maturation in the cyanobacterium Anabaena sp. strain PCC 7120.Semantic proximity Read ↗

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