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
doaj +3 more sources
Frontiers in Microbiology, 2022 The symbiosis between the diatom Hemiaulus hauckii and the heterocyst-forming cyanobacterium Richelia intracellularis makes an important contribution to new production in the world’s oceans, but its study is limited by short-term survival in the ...
Enrique Flores +4 more
doaj +2 more sources
Heterocyst Development and Diazotrophic Growth of Anabaena variabilis under Different Nitrogen Availability [PDF]
Life, 2020 Nitrogen is globally limiting primary production in the ocean, but some species of cyanobacteria can carry out nitrogen (N) fixation using specialized cells known as heterocysts.
Nur Syahidah Zulkefli, Soon-Jin Hwang
doaj +2 more sources
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
The Heterocyst-Specific Small RNA NsiR1 Regulates the Commitment to Differentiation in Nostoc
Microbiology Spectrum, 2022 Heterocysts are specialized cells that filamentous cyanobacteria differentiate for the fixation of atmospheric nitrogen when other nitrogen sources are not available.
Manuel Brenes-Álvarez +2 more
doaj +2 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
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
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
Cyanobacterial cell lineage analysis of the spatiotemporal hetR expression profile during heterocyst pattern formation in Anabaena sp. PCC 7120. [PDF]
PLoS ONE, 2009 Diazotrophic heterocyst formation in the filamentous cyanobacterium, Anabaena sp. PCC 7120, is one of the simplest pattern formations known to occur in cell differentiation.
Hironori Asai +7 more
doaj +1 more source
Do the regular annual extreme water level changes affect the seasonal appearance of Anabaena in Poyang Lake? [PDF]
PeerJ, 2019 Background Poyang Lake is an ecosystem experiencing annual variations in water level of up to 14 m. Water level changes were 8.03 and 11.22 m, respectively, in the years 2013 and 2014.
Kuimei Qian, Martin Dokulil, Yuwei Chen
doaj +2 more sources