Results 61 to 70 of about 2,720 (207)

How Close We Are to Achieving Commercially Viable Large-Scale Photobiological Hydrogen Production by Cyanobacteria: A Review of the Biological Aspects

Life, 2015
Photobiological production of H2 by cyanobacteria is considered to be an ideal source of renewable energy because the inputs, water and sunlight, are abundant. The products of photobiological systems are H2 and O2; the H2 can be used as the energy source
Hidehiro Sakurai, Hajime Masukawa, Masaharu Kitashima, Kazuhito Inoue   +3 more
doaj   +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

Spatio‐Temporal Resolution of Microbial Functions and Taxa Associated With Cyanobacterial Harmful Algae Blooms Along a 500‐Km Aquatic Continuum in the Lake Erie Watershed

Environmental Microbiology, Volume 27, Issue 10, October 2025.
The aquatic microbiome can influence cyanobacterial harmful algal blooms. Abundances of genes and transcripts for phosphorus acquisition, denitrification and nitrogen fixation were higher upstream, whereas in Lake Erie genes and transcripts for microcystin production were higher.
Sophie Crevecoeur, Lori Phillips, Arthur Zastepa, Jérôme Comte, Ngan Diep, Alice Dove, Thomas Edge, Thijs Frenken, R. Michael McKay, Susan B. Waston   +9 more
wiley   +1 more source

Diversity and life strategies of cyanobacteria and bryophytes within biocrusts in the context of mining tailings disasters in Brazil

Plant Biology, Volume 27, Issue 6, Page 1128-1136, October 2025.
Biocrust communities show notable distinctions between sites impacted by mining tailings and unimpacted areas in Brazil, encompassing differences not only in diversity but also in terms of ecological life strategies. Abstract This study investigates the impact of the Fundão Dam rupture in Brazil, one of the most severe industrial disasters globally ...
M. F. Oliveira, L. A. Souza, C. C. Figueredo, A. S. Maciel‐Silva   +3 more
wiley   +1 more source

Towards the control of biofilm formation in Anabaena (Nostoc) sp. PCC7120: novel insights into the genes involved and their regulation

New Phytologist, Volume 247, Issue 4, Page 1805-1825, August 2025.
Summary Cyanobacteria are major components of biofilms in light‐exposed environments, contributing to nutrient cycling, nitrogen fixation and global biogeochemical processes. Although nitrogen‐fixing cyanobacteria have been successfully used in biofertilization, the regulatory mechanisms underlying biofilm formation remain poorly understood.
Irene Olivan‐Muro, Jorge Guío, Germán Alonso‐Tolo, Emma Sevilla, María F. Fillat   +4 more
wiley   +1 more source

Toxicity of Tin on Nitrogen- Fixing Cyanobacteria

Environment Conservation Journal, 2010
In the present study the effect of Tin on three nitrogen-fixing cyanobacteria Nostoc muscorum, Anabaena doliolum and Aulosira fertilissima have been analyzed in terms of Total growth, Total carbohydrate, Proteins and Amino acids using 5 ppm to 55 ppm ...
B.R. Bamniya, P. Sharma
doaj   +1 more source

Biological Routes for Biohydrogen Production: A Clean and Carbon‐Free Fuel

Biotechnology Journal, Volume 20, Issue 7, July 2025.
Graphical Abstract and Lay Summary Biological routes for hydrogen (H2) production are mainly classified into four pathways: 1) direct bio‐photolysis, 2) indirect bio‐photolysis, 3) photo‐fermentation, and 4) dark fermentation. Of these pathways, dark fermentation produces the highest levels of H2 production.
Minseok Cha, Min‐Seo Park, Soo‐Jung Kim   +2 more
wiley   +1 more source

Diversity of Growth Patterns Probed in Live Cyanobacterial Cells Using a Fluorescent Analog of a Peptidoglycan Precursor

Frontiers in Microbiology, 2018
Cyanobacteria were the first oxygenic photosynthetic organisms during evolution and were ancestors of plastids. Cyanobacterial cells exhibit an extraordinary diversity in their size and shape, and bacterial cell morphology largely depends on the ...
Ju-Yuan Zhang, Gui-Ming Lin, Wei-Yue Xing, Wei-Yue Xing, Cheng-Cai Zhang   +4 more
doaj   +1 more source

Flavodiiron Protein Activity Outcompetes Cyclic Electron Transport When Expressed in Angiosperm Nicotiana tabacum

Physiologia Plantarum, Volume 177, Issue 4, July/August 2025.
ABSTRACT In conditions of excess illumination, alternative electron transport pathways in the thylakoid membranes protect the photosynthetic apparatus against damage from eventual over‐reduction. Two main pathways downstream of photosystem I (PSI) enable alternative electron flow, mitigating PSI acceptor‐side limitation, while contributing to ATP ...
Nicholas Rizzetto, Eleonora Traverso, Andrea Sabia, Filippo Fiorin, Carlotta Francese, Livio Trainotti, Tomas Morosinotto, Alessandro Alboresi   +7 more
wiley   +1 more source

Nature of Phytoplankton Communities in the Southern Hemisphere Shallow Lakes, With an Emphasis on the Presence of Submerged Aquatic Vegetation: A Review

Aquaculture, Fish and Fisheries, Volume 5, Issue 3, June 2025.
ABSTRACT Differences in the ecological stability of shallow lakes are reflected in the functional nature of the distinct phytoplankton communities in the Southern Hemisphere. Recent studies have highlighted growing uncertainties of the previous concepts regarding phytoplankton cosmopolitanism, suggesting these communities may be more regionally ...
Anton E. S. Patrick, Singarayer Florentine, Grant C. Palmer, Julie Mondon, Bradley D. Mitchell   +4 more
wiley   +1 more source