Results 31 to 40 of about 2,720 (207)
Toxins, 2018 Cyanobacteria synthesize neurotoxic β-N-methylamino-l-alanine (BMAA). The roles of this non-protein amino acid in cyanobacterial cells are insufficiently studied. During diazotrophic growth, filamentous cyanobacteria form single differentiated cells,
Alexandra A. Popova +5 more
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Modeling heterocyst pattern formation in cyanobacteria [PDF]
BMC Bioinformatics, 2009 To allow the survival of the population in the absence of nitrogen, some cyanobacteria strains have developed the capability of differentiating into nitrogen fixing cells, forming a characteristic pattern. In this paper, the process by which cyanobacteria differentiates from vegetative cells into heterocysts in the absence of nitrogen and the elements ...
Gerdtzen, Ziomara P +5 more
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NitrogenHeterocyst-forming cyanobacteria that colonize the drylands contribute to carbon and nitrogen supplies in nutrient-poor soils. As one of the representative cyanobacteria, Nostoc flagelliforme adapts well to the arid environment in the form of filamentous
Xiang Gao, Chang Liu, Wensheng Liang
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Microbiology Spectrum, 2021 In Anabaena variabilis, the nif1 genes, which are activated by CnfR1, produce a Mo-nitrogenase that is expressed only in heterocysts. Similarly, the nif2 genes, which are activated by CnfR2, make a Mo-nitrogenase that is expressed only in anaerobic ...
Brenda S. Pratte, Teresa Thiel
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Thylakoid membrane function in heterocysts
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2016 Multicellular cyanobacteria form different cell types in response to environmental stimuli. Under nitrogen limiting conditions a fraction of the vegetative cells in the filament differentiate into heterocysts. Heterocysts are specialized in atmospheric nitrogen fixation and differentiation involves drastic morphological changes on the cellular level ...
Magnuson, Ann, Cardona, Tanai
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Journal of Freshwater EcologyThe present study investigated the monthly dynamics of algal diversity in relation to the physicochemical parameters of the Dor River, a key freshwater tributary of the Indus Basin in Khyber Pakhtunkhwa, Pakistan.
Zain ul Abidin +2 more
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Antenna Modification Leads to Enhanced Nitrogenase Activity in a High Light-Tolerant Cyanobacterium
mBio, 2021 Biological nitrogen fixation is an energy-intensive process that contributes significantly toward supporting life on this planet. Among nitrogen-fixing organisms, cyanobacteria remain unrivaled in their ability to fuel the energetically expensive ...
Anindita Bandyopadhyay +4 more
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Ecological, Functional, and Phylogenetic Determinants of Cyanobacterial Biomineralisation
Environmental Microbiology Reports, Volume 18, Issue 1, February 2026.Cyanobacteria contribute to the global carbon cycle by biomineralising CO2 into solid carbonates. Unlike photosynthesis, biomineralisation is a less‐understood, multifaceted and adaptive metabolic process with significant global impact. It involves cell wall structures, genetic factors, and metabolic pathways that enable mineral formation and help ...
Federica Tiddia +3 more
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BMC Genomics, 2011 Background Cyanobacteria are potential sources of renewable chemicals and biofuels and serve as model organisms for bacterial photosynthesis, nitrogen fixation, and responses to environmental changes. Anabaena (Nostoc) sp.
Head Steven R +3 more
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Evolution of molecular communication in the permanent Azolla symbiosis
New Phytologist, Volume 249, Issue 4, Page 1666-1674, February 2026.Summary Heritable symbioses exist across eukaryotes with different degrees of intimacy. In most cases, the symbionts are obligate and require inheritance for their survival. On the host side, symbiont retention can facilitate fitness benefits. Only rarely are these symbioses interwoven to the point that host survival relies on the symbiont.
Deren Büyüktaş +2 more
wiley +1 more source