Results 61 to 70 of about 2,612 (190)

A storage-based model of heterocyst commitment and patterning in cyanobacteria

, 2013
When deprived of fixed nitrogen (fN), certain filamentous cyanobacteria differentiate nitrogen-fixing heterocysts. There is a large and dynamic fraction of stored fN in cyanobacterial cells, but its role in directing heterocyst commitment has not been ...
Brown, Aidan I, Rutenberg, Andrew D
core   +1 more source

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, Sandeesha Kodru, Dario Piano, Domenica Farci   +3 more
wiley   +1 more source

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, Ellen Sigourney Lorberg, Sophie de Vries   +2 more
wiley   +1 more source

2-Methylhopanoids are maximally produced in akinetes of Nostoc punctiforme: geobiological implications [PDF]

, 2009
2-Methylhopanes, molecular fossils of 2-methylbacteriohopanepolyol (2-MeBHP) lipids, have been proposed as biomarkers for cyanobacteria, and by extension, oxygenic photosynthesis.
Doughty, David M., Hunter, Ryan C., Newman, Dianne K., Summons, Roger Everett   +3 more
core   +4 more sources

Heterocyst differentiation and pattern formation in cyanobacteria: a chorus of signals [PDF]

Molecular Microbiology, 2005
SummaryHeterocyst differentiation in filamentous cyanobacteria provides an excellent prokaryotic model for studying multicellular behaviour and pattern formation. In Anabaena sp. strain PCC 7120, for example, 5–10% of the cells along each filament are induced, when deprived of combined nitrogen, to differentiate into heterocysts.
Zhang, C.-C., Laurent, S., Sakr, S., Peng, Ling, Bédu, S.   +4 more
openaire   +3 more sources

Phylogeny‐Aware Metabologenomics Accurately Assigns Natural Products to Biosynthetic Gene Clusters

Microbial Biotechnology, Volume 19, Issue 1, January 2026.
We report a statistical approach for associating biosynthetic gene clusters with their cognate metabolites and demonstrate its unprecedented power for scalable natural product discovery. Notably, it drastically reduces spurious associations by explicitly integrating the phylogeny of microbial producer strains.
Judith Boldt, Christoph Porten, F. P. Jake Haeckl, Joachim J. Hug, Fabian Panter, Matthias Steglich, Joachim Wink, Jörg Overmann, Markus Göker, Daniel Krug, Rolf Müller, Ulrich Nübel   +11 more
wiley   +1 more source

Manipulation of Pattern of Cell Differentiation in a hetR Mutant of Anabaena sp. PCC 7120 by Overexpressing hetZ Alone or with hetP

Life, 2018
In the filamentous cyanobacterium, Anabaena sp. PCC 7120, single heterocysts differentiate at semi-regular intervals in response to nitrogen stepdown. HetR is a principal regulator of heterocyst differentiation, and hetP and hetZ are two genes that are ...
He Zhang, Xudong Xu
doaj   +1 more source

Amazonian Cyanobacteria as a Source of Bioactive Compounds With Antimicrobial and Cytotoxic Properties

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, Luciana Pereira Xavier, Mariana Reis, Rhuana V. Médice, Janaína Morone, Raquel Silva, João Morais, Vitor Vasconcelos, Agenor Valadares Santos   +8 more
wiley   +1 more source

Expression of Cyanobacterial Genes Involved in Heterocyst Differentiation and Dinitrogen Fixation Along a Plant Symbiosis Development Profile

Molecular Plant-Microbe Interactions, 2004
Members of the cyanobiont genus Nostoc, forming an endosymbiosis with members of the angiosperm genus Gunnera, undergo a number of characteristic phenotypic changes during the development of the symbiosis, the genetic background of which is largely ...
Chun-Mei Wang, Martin Ekman, Birgitta Bergman   +2 more
doaj   +1 more source

Dating the cyanobacterial ancestor of the chloroplast [PDF]

, 2009
Cyanobacteria have played a pivotal role in the history of life on Earth being the first organism to carry out oxygenic photosynthesis, which changed atmospheric chemistry and allowed the evolution of Eukarya.
Amanda Castillo, Luisa Falcon, Susana Magallon   +2 more
core   +1 more source