Results 201 to 210 of about 63,158 (225)

Protoplasts from the cyanobacterium,Spirulina platensis

World Journal of Microbiology & Biotechnology, 1992
Protoplasts were obtained from the filamentous blue-green algaSpirulina platensis by treating the filaments with 0.05% (w/v) lysozyme in 0.03M phosphate buffer. The protoplasts regenerated cell walls and formed colonies when plated on a regeneration medium. The highest percentage of regeneration, 40% was obtained after 21 days.
A M, Abo-Shady, S M, Abou-El-Souod, A, El-Raheem, R, El-Shanshoury, Y A, Mahmoud   +4 more
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Cytotoxicity of Cyanobacterium Microcystis aeruginosa

Journal of Veterinary Medicine, Series B, 1992
SummaryCytotoxic effects of crude extracts and fractions of the purification steps towards Microcystin‐LR (MCYST‐LR) were investigated in vitro. Cytoxicity was evaluated by measure of lactate dehydrogenase liberation of Chang liver cells and by hemolysis. Crude extracts of strain PCC 7806 damaged the cells within a few minutes.
K, Henning, J, Cremer, H, Meyer
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A Cyanobacterium Capable of Swimming Motility

Science, 1985
A novel cyanobacterium capable of swimming motility was isolated in pure culture from several locations in the Atlantic Ocean. It is a small unicellular form, assignable to the genus Synechococcus , that is capable of swimming through liquids at speeds of 25 micrometers per second. Light microscopy revealed that the
J B, Waterbury, J M, Willey, D G, Franks, F W, Valois, S W, Watson   +4 more
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Cyanophages infecting the oceanic cyanobacterium Prochlorococcus

Nature, 2003
Prochlorococcus is the numerically dominant phototroph in the tropical and subtropical oceans, accounting for half of the photosynthetic biomass in some areas. Here we report the isolation of cyanophages that infect Prochlorococcus, and show that although some are host-strain-specific, others cross-infect with closely related marine Synechococcus as ...
Matthew B, Sullivan, John B, Waterbury, Sallie W, Chisholm   +2 more
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Artificial Cyanobacterium-Plant Symbioses

2005
Studies conducted during the last decade have significantly improved our knowledge of the differrent stages in formation and function of artificial associations involving cyanobacteria and furnished new data on the involvement of satellite bacteria in this process.
M. V. Gusev, O. I. Baulina, O. A. Gorelova, E. S. Lobakova, T. G. Korzhenevskaya   +4 more
openaire   +1 more source

Base editing for reprogramming cyanobacterium Synechococcus elongatus

Metabolic Engineering, 2022
AbstractGlobal climate change demands carbon-negative innovations to reduce the concentration of atmospheric carbon dioxide (CO2). Cyanobacteria can fix CO2 from the atmosphere and can be genetically reprogrammed for the production of biofuels, chemicals and food products, making an ideal microbial chassis for carbon-negative biotechnology.
Shu-Yan Wang, Xin Li, Shu-Guang Wang, Peng-Fei Xia   +3 more
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Heterocyst glycolipids of the cyanobacterium Cyanospira rippkae

Phytochemistry, 1993
Abstract The heterocyst glycolipids of the cyanobacterium Cyanospira rippkae have been isolated and their structures established to be 1-(O-α- d -glucopyranosyl)-3R,27R-octacosanediol and 1-(O-α- d -glucopyranosyl)-27-keto-3R-octacosanol by spectroscopic and chemical means.
A. SORIENTE, A. GAMBACORTA, A. TRINCONE, SILI, CLAUDIO, VINCENZINI, MASSIMO, G. SODANO   +5 more
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A cyanobacterium which lacks thylakoids

Archives of Microbiology, 1974
Gloebacter violaceus gen. and sp. n. is a unicellular photosynthetic prokaryote of unusual cellular structure. The only unit membrane in the small, rod-shaped cells is the cytoplasmic membrane, which has a simple contour, without intrusions. Immediately underlying it is an electron-dense layer 80 nm thick. Gloeobacter is an aerobic photoautotroph which
R. Rippka, J. Waterbury, G. Cohen-Bazire
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Hg2+ uptake in a cyanobacterium

Current Microbiology, 1993
The uptake of Hg2+ and its regulation in the cyanobacteriumNostoc calcicola Breb. was studied. Hg2+ uptake pattern consisted of two distinct phases: (a) rapid binding of the cation to the negatively charged cell surface (first 10 min) and (b) its subsequent metabolism-dependent intracellular import, at least up to 40 min (saturating concentration 1.5 ...
P. K. Pandey, S. P. Singh
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Fermentation in the unicellular cyanobacterium Microcystis PCC7806

Archives of Microbiology, 1994
The cyanobacterium Microcystis PCC7806 fermented endogenously stored glycogen to ethanol, acetate, CO2, and H2 when incubated anaerobically in the dark. The switch from photoautotrophic to fermentative metabolism did not require de novo protein synthesis, and fermentation started immediately after cells had been transferred to dark anoxic conditions ...
Moezelaar, H.R., Stal, L.J.
openaire   +2 more sources