Results 101 to 110 of about 7,938 (254)
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 ...
Ziomara P. Gerdtzen +5 more
openaire +2 more sources
Molecular Plant-Microbe Interactions, 2020 Cyanobacteria are phototrophic microorganisms able to establish nitrogen-fixing symbiotic associations with representatives of all four of the major phylogenetic divisions of terrestrial plants.
Consolación Álvarez +3 more
doaj +1 more source
Hopanoid lipids may facilitate aerobic nitrogen fixation in the ocean. [PDF]
, 2019 Cyanobacterial diazotrophs are considered to be the most important source of fixed N2 in the open ocean. Biological N2 fixation is catalyzed by the extremely O2-sensitive nitrogenase enzyme.
Cornejo-Castillo, Francisco M +1 more
core +1 more source
Hanks-Type Serine/Threonine Protein Kinases and Phosphatases in Bacteria: Roles in Signaling and Adaptation to Various Environments [PDF]
, 2018 Reversible phosphorylation is a key mechanism that regulates many cellular processes in prokaryotes and eukaryotes. In prokaryotes, signal transduction includes two-component signaling systems, which involve a membrane sensor histidine kinase and a ...
Janczarek, Monika +3 more
core +1 more source
Assessment of the Effect of Atrazine on Soil Algal Flora in Sudan
Applied and Environmental Soil Science, Volume 2026, Issue 1, 2026.Atrazine is an environmentally persistent herbicide of global concern due to its low biodegradability in soil and its high potential to contaminate surface water and groundwater. This study investigated the effects of atrazine on soil algal communities under different soil types, temperature regimes, and nutrient amendments.
Alshfa Kh. A. Elgaber +5 more
wiley +1 more source
The Peptidoglycan-Binding Protein SjcF1 Influences Septal Junction Function and Channel Formation in the Filamentous Cyanobacterium Anabaena [PDF]
, 2015 Filamentous, heterocyst-forming cyanobacteria exchange nutrients and regulators between cells for diazotrophic growth. Two alternative modes of exchange have been discussed involving transport either through the periplasm or through septal junctions ...
Rudolf, M. +9 more
core +2 more sources
Chemistry &Biodiversity, Volume 22, Issue 12, December 2025.ABSTRACT Cyanobacteria are photosynthetic microorganisms known for producing diverse bioactive compounds. This study explores the bioactivity of extracts and fractions from Amazonian cyanobacteria and their pigment and phenolic compound production. A fraction from Synechococcus sp. CACIAM 05 showed cytotoxicity against hCMEC/D3 and MG‐63 cells.
Samuel Cavalcante do Amaral +8 more
wiley +1 more source
ChIP analysis unravels an exceptionally wide distribution of DNA binding sites for the NtcA transcription factor in a heterocyst-forming cyanobacterium [PDF]
, 2014 [Background] The CRP-family transcription factor NtcA, universally found in cyanobacteria, was initially discovered as a regulator operating N control.
Flores, Enrique +2 more
core +3 more sources
bioRxiv, 2019 Spore formation in Bacillus subtilis and Streptomyces has been extensively studied as models of prokaryotic nonterminal cell differentiation. In these organisms, many cells/hyphae differentiate simultaneously, which is governed by a network in which one ...
Akiyoshi Higo +4 more
semanticscholar +1 more source
Integrating phytoplankton phenology, traits, and model‐data fusion to advance bloom prediction
Limnology and Oceanography Letters, Volume 10, Issue 6, Page 815-834, December 2025.Abstract While there is a diversity of approaches for modeling phytoplankton blooms, their accuracy in predicting the onset and manifestation of a bloom is still lagging behind what is needed to support effective management. We outline a framework that integrates trait theory and ecosystem modeling to improve bloom prediction.
Matthew R. Hipsey +6 more
wiley +1 more source