Results 41 to 50 of about 1,898 (177)

Expression from DIF1-motif promoters of hetR and patS is dependent on HetZ and modulated by PatU3 during heterocyst differentiation.

PLoS ONE, 2020
HetR and PatS/PatX-derived peptides are the activator and diffusible inhibitor for cell differentiation and patterning in heterocyst-forming cyanobacteria. HetR regulates target genes via HetR-recognition sites.
Yaru Du, He Zhang, Hong Wang, Shuai Wang, Qiqin Lei, Chao Li, Renqiu Kong, Xudong Xu   +7 more
doaj   +1 more source

Influence of Mo and Fe on Photosynthetic and Nitrogenase Activities of Nitrogen-Fixing Cyanobacteria under Nitrogen Starvation

Cells, 2022
The potential of cyanobacteria to perform a variety of distinct roles vital for the biosphere, including nutrient cycling and environmental detoxification, drives interest in studying their biodiversity.
Asemgul K. Sadvakasova, Bekzhan D. Kossalbayev, Aziza I. Token, Meruert O. Bauenova, Jingjing Wang, Bolatkhan K. Zayadan, Huma Balouch, Saleh Alwasel, Yoong Kit Leong, Jo-Shu Chang, Suleyman I. Allakhverdiev   +10 more
doaj   +1 more source

Conserved symbiosis‐associated genes in the cycad Encephalartos natalensis suggest co‐option for cyanobacterial symbiosis

New Phytologist, Volume 251, Issue 4, Page 2168-2185, August 2026.
The heterocyst‐rich Encephalartos natalensis cyanobacterial zone in coralloid root suggests co‐option of conserved symbiosis‐associated genes. This figure was created in BioRender (BioRender.com/https://BioRender.com/n3qveqc). Summary Plant‐cyanobacterial symbioses have evolved independently at least four times across land plants, yet their underlying ...
Cassandra Schoeman, Danielle Roodt, Amy Mc Menamin, Oliver Bezuidt, Choaro Dithugoe, Desré Pinard, Eshchar Mizrachi   +6 more
wiley   +1 more source

Abundance, Diversity and Metabolomic Profiles of Soil Cyanobacteria‐Dominated Microbial Communities Under Long‐Term Differential Management in an Olive Orchard

Environmental Microbiology, Volume 28, Issue 7, July 2026.
Sustainable management in a semi‐arid olive orchard increased abundance and diversity of nitrogen‐fixing cyanobacteria, shifting dominance towards Nodosilinea and Nostoc, while conventional soils were dominated by Leptolyngbya. Metabolomics showed stress‐related lipid and vitamin production under conventional management versus enhanced amino acids and ...
Mohammad Yaghoubi Khanghahi, Rosangela Addesso, Luigi Lucini, Leilei Zhang, Francesco Maria Calabrese, Margherita Chiarini, Matteo Bernardi, Lisa Signorile, Alba N. Mininni, Bartolomeo Dichio, Carmine Crecchio, Maria De Angelis, Mario De Tullio, Adriano Sofo   +13 more
wiley   +1 more source

Preventing Accidental Heterocyst Development in Cyanobacteria [PDF]

Journal of Bacteriology, 2019
The filamentous cyanobacterium Anabaena can form heterocysts specialized in N 2 fixation, mostly through a cascade of transcriptional activation in response to the nitrogen starvation signal 2-oxoglutarate.
Wei-Yue, Xing, Cheng-Cai, Zhang
openaire   +2 more sources

Synergistic Effect of Deoxyanthocyanins from Symbiotic Fern Azolla spp. on hrmA Gene Induction in the Cyanobacterium Nostoc punctiforme

Molecular Plant-Microbe Interactions, 2002
The hrmA gene of the N2-fixing cyanobacterium Nostoc punctiforme functions in repressing the formation of transitory motile filaments, termed hormogonia, by plant-associated vegetative filaments.
Michael F. Cohen, Yasuko Sakihama, Yojiro C. Takagi, Toshio Ichiba, Hideo Yamasaki   +4 more
doaj   +1 more source

Coexistence of Communicating and Noncommunicating Cells in the Filamentous Cyanobacterium Anabaena

mSphere, 2021
Multicellularity is found in bacteria as well as in eukaryotes, and the filamentous heterocyst-forming (N ...
Sergio Arévalo, Anja Nenninger, Mercedes Nieves-Morión, Antonia Herrero, Conrad W. Mullineaux, Enrique Flores   +5 more
doaj   +1 more source

Water Availability and Air Humidity Strongly Affect Photosynthesis in Biofilms on Tree Trunks: Predictions for a Climate‐Changing World

Environmental Microbiology, Volume 28, Issue 7, July 2026.
Photosynthetic behaviour in cyanobacteria‐dominated biofilms on tree bark is very sensitive to water availability and vulnerable to climatic changes. ABSTRACT Climate change intensifies drought in several regions. Here, we assess how water availability and air humidity regulate photosynthesis in epiphytic cyanobacterial biofilms on Jacaranda ...
Ana Beatriz de Lima Freitas, Tiago Vilas‐Boas, Cleber Cunha Figueredo   +2 more
wiley   +1 more source

Heterocyst and Nitrogenase Development in Anabaena cylindrica [PDF]

Journal of General Microbiology, 1976
The differentiation of filaments of a continuous culture of Anabaena cylindrica after removal of fixed nitrogen has been examined. Rapid development of proheterocysts (4-5 h) and mature heterocysts (14 h) in an ordered sequence was observed; the development of the latter was concomitant with the onset of nitrogenase activity. Commitment times of 2-3 h (
S, Bradley, N G, Carr
openaire   +2 more sources

Photosynthesis regulation impacts carbon and nitrogen assimilation in the diazotrophic cyanobacterium Anabaena sp. PCC 7120

New Phytologist, Volume 251, Issue 1, Page 94-110, July 2026.
Model of intercellular functional coordination in Anabaena. Summary Diazotrophic cyanobacteria fix both atmospheric carbon (C) and nitrogen (N) into biomass, but the two assimilation pathways are not compatible. Species like Anabaena sp. PCC 7120 physically separate C and N assimilation in different cell types.
Anna Santin, Mattia Storti, Massimo Mezzavilla, Anna Fortunato, Filippo Fiorin, David C. A. Gaboriau, Francesca Arcudi, Enrique Flores, Tomas Morosinotto, Giorgio Perin   +9 more
wiley   +1 more source