Results 91 to 100 of about 7,938 (254)

Small secreted proteins enable biofilm development in the cyanobacterium Synechococcus elongatus. [PDF]

, 2016
Small proteins characterized by a double-glycine (GG) secretion motif, typical of secreted bacterial antibiotics, are encoded by the genomes of diverse cyanobacteria, but their functions have not been investigated to date.
Golden, Susan, Nagar, Elad, Parnasa, Rami, Reich, Ziv, Schwarz, Rakefet, Sendersky, Eleonora, Simkovsky, Ryan   +6 more
core   +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

The Role of MreB, MreC and MreD in the Morphology of the Diazotrophic Filament of Anabaena sp. PCC 7120

Life, 2022
The cyanobacterium Anabaena sp. PCC 7120 forms filaments of communicating cells. Under conditions of nitrogen scarcity, some cells differentiate into heterocysts, allowing the oxygen-sensitive N2-reduction system to be expressed and operated in oxic ...
Cristina Velázquez-Suárez, Ignacio Luque, Antonia Herrero   +2 more
doaj   +1 more source

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

All4312, an NtcA-regulated two-component response regulator in Anabaena sp. strain PCC 7120 [PDF]

, 2006
All4312, encoded by open reading frame all4312 in the genome of the heterocyst-forming cyanobacterium Anabaena sp. strain PCC 7120, exhibits a CheY-like receiver domain and an output domain similar to that of OmpR, characteristic of two-component ...
Alicia María Muro-Pastor, Ausubel, Elvira Olmedo-Verd, Enrique Flores, Flores   +4 more
core   +1 more source

Cyanobacteria and Cyanotoxins in Mediterranean Reservoirs: Ecological Variability, Risks and Implications for Water Quality Assessment

Ecohydrology, Volume 19, Issue 1, January‐February 2026.
ABSTRACT The increasing demand for freshwater, in combination with climate change and pollution, compromises the quality and quantity of water resources. These pressures have intensified cyanobacterial blooms, including toxic events that threaten human health and aquatic ecosystems. This study complements the objectives of the Water Framework Directive
Ivo Pinto, Raquel Silva, Guilherme Scotta Hentschke, Vítor Vasconcelos, João Morais, Luísa Azevedo, Sara C. Antunes   +6 more
wiley   +1 more source

Heterocyst differentiation in the cyanobacterium Mastigocladus laminosus [PDF]

Journal of Bacteriology, 1984
The morphological and ultrastructural aspects of heterocyst differentiation in the branching, filamentous cyanobacterium Mastigocladus laminosus were examined with light and electron microscopy. The earliest differentiation stages involved cytoplasmic changes, including (i) rapid degradation of carboxysomes, (ii) degradation of polysaccharide granules,
S A, Nierzwicki-Bauer, D L, Balkwill, S E, Stevens   +2 more
openaire   +2 more sources

Structures of complexes comprised of Fischerella transcription factor HetR with Anabaena DNA targets [PDF]

, 2013
HetR is an essential regulator of heterocyst development in cyanobacteria. Many mutations in HetR render Anabaena incapable of nitrogen fixation. The protein binds to a DNA palindrome upstream of hetP and other genes.
Callahan, Sean M., Gornicki, Piotr, Haselkorn, Robert, Hurd, Kathryn, Joachimiak, Andrzej, Joachimiak, Grazyna, Kim, Youngchang, Videau, Patrick, Ye, Zi, Young, Jasmine, Zhao, Jindong   +10 more
core   +1 more source

patD, a Gene Regulated by NtcA, Is Involved in the Optimization of Heterocyst Frequency in the Cyanobacterium Anabaena sp. Strain PCC 7120

Journal of Bacteriology, 2019
Microorganisms have evolved various strategies in order to adapt to the environment and compete with other organisms. Heterocyst differentiation is a prokaryotic model for studying complex cellular regulation.
Li Wang, G. Lin, Tian-Cai Niu, Shaojuan Zhang, Ju-Yuan Zhang, Guozhu Tang, Wenli Chen, Cheng-Cai Zhang   +7 more
semanticscholar   +1 more source

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