Results 61 to 70 of about 9,083 (166)

Fitoplancton de una laguna pampásica (San Miguel del Monte, Buenos Aires, Argentina)

Biología Acuática, 2019
Phytoplankton assemblages were analyzed taking into account the functional groups in a shallow lake connected to the lower basin of Salado River. Samples were obtained monthly (9/1997-8/1998), from the affluent (E1), San Miguel del Monte lake (E2) and ...
Karina Paola Quaíni, Lía C. Solari, G. Ruiz   +2 more
doaj  

Role of diversity-generating retroelements for regulatory pathway tuning in cyanobacteria

BMC Genomics, 2020
Background Cyanobacteria maintain extensive repertoires of regulatory genes that are vital for adaptation to environmental stress. Some cyanobacterial genomes have been noted to encode diversity-generating retroelements (DGRs), which promote protein ...
Alec Vallota-Eastman, Eleanor C. Arrington, Siobhan Meeken, Simon Roux, Krishna Dasari, Sydney Rosen, Jeff F. Miller, David L. Valentine, Blair G. Paul   +8 more
doaj   +1 more source

Impact of the invasive diatom species Cymbella janischii on riverine microbial biofilm communities and a potential role of bacterially produced zeatin

Journal of Phycology, EarlyView.
Abstract The diatom Cymbella janischii is an invasive species in Japan, causing nuisance blooms by forming thick mats in rivers. To date, there are no documented studies on the microbiome associations in C. janischii mats or the processes that drive bloom formation.
Eldrin D. L. R. Arguelles, Kana Mugikura, Shinya Sato   +2 more
wiley   +1 more source

A Phosphorylation‐Dependent Partner‐Switching‐Like Module Regulates a Glycosyltransferase Required for Heterocyst Polysaccharide Layer Formation in Anabaena sp. Strain PCC 7120

Molecular Microbiology, EarlyView.
The glycosyltransferase All4160 is regulated by the reversible phosphorylation of Ser74. The kinase Alr3423 phosphorylates and inactivates All4160, while the SpoIIE‐like phosphatase HenR restores its activity through dephosphorylation. A nonphosphorylatable variant of All4160 bypasses the need for HenR, which demonstrates that a phosphorylation ...
Mai Harada, Satoshi Matsuoka, Shigeki Ehira   +2 more
wiley   +1 more source

Identification and characterization of novel filament-forming proteins in cyanobacteria [PDF]

Scientific Reports, 2019
Abstract Filament-forming proteins in bacteria function in stabilization and localization of proteinaceous complexes and replicons; hence they are instrumental for myriad cellular processes such as cell division and growth. Here we present two novel filament-forming proteins in cyanobacteria.
Springstein, Benjamin L., Woehle, Christian, Weissenbach, Julia, Helbig, Andreas O., Dagan, Tal, Stucken, Karina   +5 more
openaire   +2 more sources

Chemical Diversity of Marine Filamentous Benthic Cyanobacteria

Phycology
Genomic and chemical analysis has revealed that numerous species of filamentous cyanobacteria harbor complex secondary metabolisms tailored to their particular ecological niche.
Fernanda O. Chagas, Paulo I. Hargreaves, Victoria Gabriela S. Trindade, Taiane B. M. Silva, Gabriela de A. Ferreira, Yasmin Pestana, Marina A. Alves, Paulo Sergio Salomon, Vincent A. Bielinski, Ricardo M. Borges   +9 more
doaj   +1 more source

Structural Diversity of Bacterial Communities Associated with Bloom-Forming Freshwater Cyanobacteria Differs According to the Cyanobacterial Genus. [PDF]

PLoS ONE, 2015
The factors and processes driving cyanobacterial blooms in eutrophic freshwater ecosystems have been extensively studied in the past decade. A growing number of these studies concern the direct or indirect interactions between cyanobacteria and ...
Imen Louati, Noémie Pascault, Didier Debroas, Cécile Bernard, Jean-François Humbert, Julie Leloup   +5 more
doaj   +1 more source

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

New Phytologist, EarlyView.
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

Occurrence of C35–C45 polyprenols in filamentous and unicellular cyanobacteria [PDF]

Organic Geochemistry, 2010
Polyprenols, regular (head-to-tail) isoprenoid alcohols with 7-9 prenyl units, were tentatively identified in several cultivated cyanobacteria Heptaprenol (C35), octaprenol (C40) and a suite of nonaprenols (C45) were present in unicellular and filamentous non-heterocystous cyanobacteria, while they were absent in heterocystous species Structurally ...
Bauersachs, T., Schouten, S., Compaoré, J., Stal, L.J., Sinninghe Damsté, J.S.   +4 more
openaire   +4 more sources

A Tripartite, Hierarchical Sigma Factor Cascade Promotes Hormogonium Development in the Filamentous Cyanobacterium Nostoc punctiforme

mSphere, 2019
Cyanobacteria are prokaryotes capable of oxygenic photosynthesis, and frequently, nitrogen fixation as well. As a result, they contribute substantially to global primary production and nitrogen cycles.
Alfonso Gonzalez, Kelsey W. Riley, Thomas V. Harwood, Esthefani G. Zuniga, Douglas D. Risser   +4 more
doaj   +1 more source