Results 41 to 50 of about 9,083 (166)

The Cyanotoxin BMAA Induces Heterocyst Specific Gene Expression in Anabaena sp. PCC 7120 under Repressive Conditions

Toxins, 2018
Cyanobacteria synthesize neurotoxic β-N-methylamino-l-alanine (BMAA). The roles of this non-protein amino acid in cyanobacterial cells are insufficiently studied. During diazotrophic growth, filamentous cyanobacteria form single differentiated cells,
Alexandra A. Popova, Tatiana A. Semashko, Natalia V. Kostina, Ulla Rasmussen, Vadim M. Govorun, Olga A. Koksharova   +5 more
doaj   +1 more source

The model cyanobacteria Anabaena sp. PCC 7120 possess an intact but partially degenerated gene cluster encoding gas vesicles

BMC Microbiology, 2020
Background Bacterial gas vesicles, composed of two major gas vesicle proteins and filled with gas, are a unique class of intracellular bubble-like nanostructures. They provide buoyancy for cells, and thus play an essential role in the growth and survival
Kun Cai, Bo-Ying Xu, Yong-Liang Jiang, Ying Wang, Yuxing Chen, Cong-Zhao Zhou, Qiong Li   +6 more
doaj   +1 more source

Grazing impacts of the invasive bivalve Limnoperna fortunei (Dunker, 1857) on single-celled, colonial and filamentous cyanobacteria

Brazilian Journal of Biology
Feeding behavior of the invasive bivalve Limnoperna fortunei in the presence of single-celled, colonial, and filamentous cyanobacteria was tested in laboratory experiments to evaluate the effects of size and shape on mussel feeding.
V Gazulha, MCD Mansur, LF Cybis, SMFO Azevedo   +3 more
doaj   +1 more source

Aggregation of mineral particles in cryoconite granules by multiple species of cyanobacteria on Urumqi Glacier No.1, China

Frontiers in Earth Science
Cryoconite granules are microbial aggregations formed by filamentous cyanobacteria with mineral particles on the bare ice surface of glaciers worldwide.
Yunjie Chen, Yunjie Chen, Yunjie Chen, Nozomu Takeuchi, Sota Tanaka, Zhongqin Li   +5 more
doaj   +1 more source

Pioneer species of Cyanobacteria in hot springs and their role to travertine formation: The case of Aedipsos hot springs, Euboea (Evia), Greece

The Depositional Record, 2022
Cyanobacteria are considered to be among the first microorganisms to settle in hot springs where they form a favourable environment for further biological establishment.
Christos Kanellopoulos, Vasiliki Lamprinou, Artemis Politi, Panagiotis Voudouris, Athena Economou‐Amilli   +4 more
doaj   +1 more source

Polyadenylated RNA in two filamentous cyanobacteria. [PDF]

Journal of Bacteriology, 1983
Polyadenylated RNA was detected in the cyanobacteria Nostoc sp. strain MAC and Anabaena variabilis by oligodeoxythymidylic acid-cellulose chromatography and by hybridization to [3H]polyuridylic acid. Polyadenylate tracts from A. variabilis were located at the 3' end of RNA chains and had an estimated length of 15 to 22 nucleotides.
D H, Crouch, J D, Ownby, N G, Carr
openaire   +2 more sources

Dual Cytoplasmic and Chloroplastic Mechanisms Fine‐Tune Chloroplast Division through ARC3 Protein Stability

Advanced Science, EarlyView.
ARC3 levels are controlled by cytosolic and chloroplast proteolytic systems. PUB52 mediates ARC3 precursor ubiquitination and degradation in the cytosol, while CLPC1 promotes ARC3 degradation in chloroplasts, where ARC2 protects ARC3 from excessive breakdown. Disrupting these components causes chloroplast division defects, placing them upstream of ARC3.
Yang Yuan, Denghao Xiang, Ruiying Li, Zhichuang Yue, Zhipeng Wang, Honghong Hu   +5 more
wiley   +1 more source

Exploring Bioactive Properties of Marine Cyanobacteria Isolated from the Portuguese Coast: High Potential as a Source of Anticancer Compounds

Marine Drugs, 2013
The oceans remain a major source of natural compounds with potential in pharmacology. In particular, during the last few decades, marine cyanobacteria have been in focus as producers of interesting bioactive compounds, especially for the treatment of ...
Margarida Costa, Mónica Garcia, João Costa-Rodrigues, Maria Sofia Costa, Maria João Ribeiro, Maria Helena Fernandes, Piedade Barros, Aldo Barreiro, Vitor Vasconcelos, Rosário Martins   +9 more
doaj   +1 more source

Chlorella vulgaris biorefineries: sustainable biofuels and high‐value carbon capture

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Global reliance on fossil fuels has created urgent economic and environmental challenges, yet large‐scale use of algal biomass remains limited by production costs. Industrial scaling is constrained by inefficient harvesting and the technical challenges of processing recalcitrant cell walls.
Sandyelle Ferreira Alcântara Araújo, Antonio Átila Menezes Ferreira, Lucia Andrea Sindeaux de Oliveira, Dayana Nascimento Dari, Devany Quintela Soares, Eliana Elisa Francelino Mavie, Francisco Leonardo Alves de Moraes Sousa, Jessica Lopes da Silva, João Vitor Gomes de Araújo Silva, Thiago Queiroz da Silva, Ana Karine Portela Vasconcelos, Kelma Maria dos Santos Pires Cavalcante, John Hebert da Silva Felix, José Cleiton Sousa dos Santos   +13 more
wiley   +1 more source

Artificial intelligence to explain the variables that favor the cyanobacteria steady-state in tropical ecosystems: A Bayeasian network approach

Anais da Academia Brasileira de Ciências, 2023
The steady-state is a situation of little variability of species dominance and total biomass over time. Maintenance of cyanobacteria are often observed in tropical and eutrophic ecosystems and can cause imbalances in aquatic ecosystem. Bayeasian networks
FÁBIO HENRIQUE P.C. DE OLIVEIRA, NEIDE K.S. SHINOHARA, MOACYR CUNHA FILHO   +2 more
doaj   +1 more source