Results 61 to 70 of about 7,938 (254)
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
doaj +1 more source
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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Formation and maintenance of nitrogen-fixing cell patterns in filamentous cyanobacteria [PDF]
, 2016 Cyanobacteria forming one-dimensional filaments are paradigmaticmodel organisms of the transition between unicellular andmulticellular living forms. Under nitrogen-limiting conditions, infilaments of the genus Anabaena, some cells differentiate into ...
Ares García, Saúl +1 more
core +2 more sources
A Heterocyst-Specific Antisense RNA Contributes To Metabolic Reprogramming In Nostoc sp. PCC 7120.
Plant and Cell Physiology, 2019 Upon nitrogen deficiency, some filamentous cyanobacteria differentiate specialized cells, called heterocysts, devoted to N2 fixation. Heterocysts appear regularly spaced along the filaments and exhibit structural and metabolic adaptations, such as loss ...
Elvira Olmedo-Verd +3 more
semanticscholar +1 more source
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
doaj +1 more source
Intercellular Diffusion of a Fluorescent Sucrose Analog via the Septal Junctions in a Filamentous Cyanobacterium [PDF]
, 2015 D.J.N. was supported by a Queen Mary University of London College studentship. M.N.M. was the recipient of an FPU (Formación del Personal Universitario) fellowship from the Spanish Government.
Bornikoel, J +8 more
core +4 more sources
Photophobotaxis of single‐celled and filamentous cyanobacteria
Photochemistry and Photobiology, EarlyView.LED illumination from below induces central accumulation of cyanobacterial species. Abstract Phototaxis refers to an organism's movement toward a light source, while photophobotaxis involves movement into illuminated regions. Although phototaxis in cyanobacteria has been widely studied, photophobotaxis has been investigated in only a few species.
Maria Sinetova +6 more
wiley +1 more source
Heterocyst-Specific Transcription of NsiR1, a Non-Coding RNA Encoded in a Tandem Array of Direct Repeats in Cyanobacteria [PDF]
, 2010 In response to nitrogen deficiency, some cyanobacteria develop heterocysts, a terminally differentiated cell type, specialized for the fixation of atmospheric nitrogen.
Hess, Wolfgang R. +4 more
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Protein Science, Volume 35, Issue 5, May 2026.Abstract In cyanobacteria, the redox‐sensitive protein OpcA acts as a metabolic switch for G6PDH, enabling rapid adjustment of reducing power generation from glycogen catabolism and thereby precisely regulating carbon flux between anabolic and catabolic pathways.
Hoshin Kim +7 more
wiley +1 more source
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
openaire +2 more sources