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Morphogenesis in a community of filamentous cyanobacteria

Russian Journal of Developmental Biology, 2013
Reversible differentiation was experimentally discovered in a community of modern filamentous cyanobacteria Oscillatoria terebriformis. Splitting of the initially uniform community into differentiated parts (strands, multiradiate aggregates, networks, etc.) occurs only for the duration of a function facilitating the activity of this community as an ...
E L, Sumina, D L, Sumin
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Hydrogen metabolism by filamentous cyanobacteria

Archives of Biochemistry and Biophysics, 1980
Abstract Apparent discrepancies in the literature concerning the amounts of H 2 produced by strains of Anabaena cylindrica are explained. These are not due to differences in strains used by different workers nor to differences in growth conditions, but rather appear to be due to the fact that cultures show an increasing dependence with age on CO 2
G R, Lambert, G D, Smith
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Understanding filamentous cyanobacteria and their adaptive niches in Lake Honghu, a shallow eutrophic lake.

Journal of Environmental Science
Freshwater lakes globally are witnessing an escalation in the frequency and intensity of cyanobacterial harmful blooms. However, underlying factors influencing the succession or coexistence of cyanobacteria, especially filamentous ones, remain poorly ...
Guangbin Gao   +8 more
semanticscholar   +1 more source

Nitrogen Fixation in Filamentous Cyanobacteria

1990
Filamentous cyanobacteria such as Anabaena differentiate cells specialized for nitrogen fixation, called heterocysts. A large number of mutants of Anabaena 7120, defective in heterocyst differentiation, were isolated. For some of these, the gene that complements the mutation has been identified by conjugation with a cosmid library of wild-type DNA ...
R. Haselkorn   +7 more
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Gene transcription in filamentous cyanobacteria

Microbiology, 1994
Cyanobacteria are probably the most diverse group of prokaryotes in the number of species, type of habitats, morphology and physiological properties. Their common feature is 0,-evolving photosynthesis, performed by mechanisms similar to those of algae and higher plants.
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Behavior of filamentous cyanobacteria in laboratory culture

Microbiology, 2006
The observations of a laboratory culture of filamentous cyanobacteria revealed a complex of behavioral responses of their community, which maintain their activity as an integrated entity. A number of structures formed in the course of filament regrouping were revealed and described; their possible structural and functional analogues in eukaryotic ...
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Cell–cell communication in filamentous cyanobacteria

Molecular Microbiology, 2008
SummaryAlthough cytoplasmic bridges between adjacent cells in the filaments of nitrogen‐fixing cyanobacteria have been known for decades, the existence also of a continuous periplasm along the filaments raised the possibility that alternative modes of communication between cells could be utilized.
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Antioxidant activity of phycocyanin pigment extracted from marine filamentous cyanobacteria Geitlerinema sp TRV57

Biocatalysis and Agricultural Biotechnology, 2018
Phycocyanin is a blue colored naturally existing phycobiliprotein pigment, which is abundant in cyanobacteria, a blue green algae. In this study, phycocyanin was extracted from the Geitlerinema sp. TRV57.
K. Renugadevi   +3 more
semanticscholar   +1 more source

Measurement of filamentous cyanobacteria by image analysis

Journal of Microbiological Methods, 1996
A method of image analysis is described for measuring total filament lengths of cyanobacteria collected on membrane filters from samples of natural populations or cultures. Images of autofluorescent filaments viewed by epifluorescence microscopy were transferred to a computer screen by using a high resolution television camera and an image integrator ...
Walsby, AE, Avery, A
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Is the periplasm continuous in filamentous multicellular cyanobacteria?

Trends in Microbiology, 2006
Filamentous, heterocyst-forming cyanobacteria are multicellular organisms in which individual cells exchange nutrients and, presumably, regulatory molecules. Unknown mechanisms underlie this exchange. Classical electron microscopy shows that filamentous cyanobacteria bear a Gram-negative cell wall comprising a peptidoglycan layer and an outer membrane ...
Enrique, Flores   +3 more
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