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The ribonuclease E regulator RebA is essential for diazotrophic growth in the cyanobacterium Anabaena PCC 7120 [PDF]
mLifeRibonuclease E (RNase E) is central to bacterial RNA metabolism. In cyanobacteria, its activity is inhibited by RebA, a key mechanism for controlling cell morphology.
Sujuan Liu +6 more
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The Role of Heterocysts in Cyanotoxin Production during Nitrogen Limitation [PDF]
Toxins, 2023 Cyanobacteria harmful algal blooms (cyanoHABs) can have impacts on human health, aquatic ecosystems, and the economy. Nutrient management is an important mitigation and even remediation strategy.
Mohamed N. Gomaa, Wayne W. Carmichael
doaj +2 more sources
Heterocyst Thylakoid Bioenergetics [PDF]
Life, 2019 Heterocysts are specialized cells that differentiate in the filaments of heterocystous cyanobacteria. Their role is to maintain a microoxic environment for the nitrogenase enzyme during diazotrophic growth.
Ann Magnuson
doaj +4 more sources
Life, 2015 The filamentous cyanobacterium Anabaena sp. strain PCC 7120 differentiates specialized cells for nitrogen fixation called heterocysts upon limitation of combined nitrogen in the medium.
Shigeki Ehira
exaly +3 more sources
Intercellular communication in the fern endosymbiotic cyanobacterium Nostoc azollae [PDF]
mBioThe water fern Azolla spp. harbors as an endobiont the N2-fixing, filamentous, heterocyst-forming cyanobacterium Nostoc azollae. N. azollae provides the fern with fixed nitrogen permitting its growth in nitrogen-poor environments.
Cristina Sarasa-Buisán +5 more
doaj +2 more sources
Metalloproteins in the Biology of Heterocysts [PDF]
Life, 2019 Cyanobacteria are photoautotrophic microorganisms present in almost all ecologically niches on Earth. They exist as single-cell or filamentous forms and the latter often contain specialized cells for N2 fixation known as heterocysts.
Rafael Pernil, Enrico Schleiff
doaj +4 more sources
Growth Characteristics of an Estuarine Heterocystous Cyanobacterium [PDF]
Frontiers in Microbiology, 2017 A new estuarine filamentous heterocystous cyanobacterium was isolated from intertidal sediment of the Lagoa dos Patos estuary (Brazil). The isolate may represent a new genus related to Cylindrospermopsis.
Pablo Guimarães +6 more
doaj +4 more sources
c-di-GMP Homeostasis Is Critical for Heterocyst Development in Anabaena sp. PCC 7120
Frontiers in Microbiology, 2021 c-di-GMP is a ubiquitous bacterial signal regulating various physiological process. Anabaena PCC 7120 (Anabaena) is a filamentous cyanobacterium able to form regularly-spaced heterocysts for nitrogen fixation, in response to combined-nitrogen deprivation
Min Huang +7 more
doaj +1 more source
Cyanobacterial Heterocysts [PDF]
Cold Spring Harbor Perspectives in Biology, 2010 Many multicellular cyanobacteria produce specialized nitrogen-fixing heterocysts. During diazotrophic growth of the model organism Anabaena (Nostoc) sp. strain PCC 7120, a regulated developmental pattern of single heterocysts separated by about 10 to 20 photosynthetic vegetative cells is maintained along filaments.
Krithika, Kumar +2 more
openaire +2 more sources
Frontiers in Microbiology, 2021 Bacterial cell shape is determined by the peptidoglycan (PG) layer. The cyanobacterium Anabaena sp. PCC 7120 (Anabaena) is a filamentous strain with ovoid-shaped cells connected together with incomplete cell constriction.
Jing Liu +7 more
doaj +1 more source