Results 111 to 120 of about 7,938 (254)
Modifiers of heterocyst repression and spacing and formation of heterocysts without nitrogenase in the cyanobacterium Anabaena variabilis [PDF]
Journal of Bacteriology, 1979 Twelve amino acid analogs and related compounds were screened for their ability to induce heterocysts in ammonia-repressed, undifferential filaments of Anabaena variabilis. As has been previously described, 1-methionine-dl-sulfoximine induces both heterocysts and nitrogenase.
openaire +2 more sources
Life, 2015 Photobiological production of H2 by cyanobacteria is considered to be an ideal source of renewable energy because the inputs, water and sunlight, are abundant. The products of photobiological systems are H2 and O2; the H2 can be used as the energy source
Hidehiro Sakurai +3 more
doaj +1 more source
Journal of Ecology, Volume 113, Issue 11, Page 3390-3405, November 2025.Higher numbers of added nutrients (NAN) in treatment (T) relative to control (C) algal communities (1) and grazing (2) elevated taxonomic/phylogenetic nestedness (βNes) and functional gradient (βGra) components of β‐diversity. Herbivory favoured grazer‐resistant inferior competitors (2).
Sophia I. Passy, Chad A. Larson
wiley +1 more source
Water Biology and SecurityDEAD-box RNA helicases play critical roles in regulating RNA metabolism and gene expression in both prokaryotes and eukaryotes. In the filamentous, heterocyst-forming cyanobacterium Anabaena PCC 7120, two DEAD-box helicases, CrhB and CrhC, are present ...
Wen-Kai Li +7 more
doaj +1 more source
Metabolic Origin, Role and Fate of the Denaturant Guanidine
Microbial Biotechnology, Volume 18, Issue 11, November 2025.The origin of metabolic guanidine is largely a mystery. We suggest it is created when guanine‐containing nucleotides are oxidised by molecular oxygen instead of being broken down into urea as purines normally would. Guanidine may act as a signal to help cells control the level of reactive oxygen species.
Antoine Danchin +3 more
wiley +1 more source
Clinical and Translational Science, Volume 18, Issue 11, November 2025.ABSTRACT Gastric Signet Ring Cell Carcinoma (GSRCC) is an increasingly recognized subtype of gastric cancer, particularly prevalent in South Asian populations and regions within India. This carcinoma is distinguished by its abundant cytoplasmic mucinous cells and aggressive clinical behavior, often affecting younger individuals and leading to a poor ...
Dipali Raju +8 more
wiley +1 more source
Toxicity of Tin on Nitrogen- Fixing Cyanobacteria
Environment Conservation Journal, 2010 In the present study the effect of Tin on three nitrogen-fixing cyanobacteria Nostoc muscorum, Anabaena doliolum and Aulosira fertilissima have been analyzed in terms of Total growth, Total carbohydrate, Proteins and Amino acids using 5 ppm to 55 ppm ...
B.R. Bamniya, P. Sharma
doaj +1 more source
Freshwater Biology, Volume 70, Issue 11, November 2025.ABSTRACT Nutrient‐rich lakes are highly susceptible to cyanobacterial blooms. During blooms, the consumption of dissolved inorganic nutrients can be rapid, but nitrogen (N) limitation can be mitigated through N2 fixation by cyanobacterial diazotrophs.
Lisa M. Boyer +2 more
wiley +1 more source
Frontiers in Microbiology, 2018 Cyanobacteria were the first oxygenic photosynthetic organisms during evolution and were ancestors of plastids. Cyanobacterial cells exhibit an extraordinary diversity in their size and shape, and bacterial cell morphology largely depends on the ...
Ju-Yuan Zhang +4 more
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A Minority of Desert Cyanobacteria and Algae Is Responsible for the Bulk of CO2 Fixation
Physiologia Plantarum, Volume 177, Issue 6, November/December 2025.ABSTRACT Cyanobacteria and algae are the major photosynthetic organisms in deserts because they survive desiccation, high solar radiation and extreme temperature fluctuations better than other plants. Under favourable conditions, desert cyanobacteria and algae evidently photosynthesise.
Khin Maw Kyi +2 more
wiley +1 more source