Results 171 to 180 of about 2,158,587 (221)
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Molecular circuit of heterocyst differentiation in cyanobacteria
Journal of Basic Microbiology, 2020Differentiation commitment is one of the most complex mechanisms to study in biological science. One of the model systems used for understanding differentiation complexity is heterocyst development in cyanobacteria.
Harish, Kunal Seth
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Heterocyst differentiation: from single mutants to global approaches.
Trends in Microbiology, 2012There are several instances of cellular differentiation in prokaryotes, including the formation of spores in Bacillus, the fruiting bodies of Myxococcus, and the stalked cells of Caulobacter. The vegetative cells of particular filamentous cyanobacteria can differentiate into three different cell types: N(2)-fixing heterocysts, spore-like akinetes, and ...
A. Muro-Pastor, W. Hess
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Response of heterocyst differentiation of Dolichospermum to different forms of nitrogen deficiency.
Harmful AlgaeIn recent years, initiatives aimed at mitigating eutrophication have successfully reduced nitrogen and phosphorus concentrations in numerous lakes across China.
Zichen Liu +6 more
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Nature, 1985
Nitrogen fixation by the cyanobacterium Anabaena is carried out in heterocysts, specialized, non-dividing cells which differentiate under conditions of ammonia or nitrate deprivation. In Anabaena, heterocyst differentiation is accompanied by rearrangement of some nitrogen fixation genes.
J. W. Golden +2 more
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Nitrogen fixation by the cyanobacterium Anabaena is carried out in heterocysts, specialized, non-dividing cells which differentiate under conditions of ammonia or nitrate deprivation. In Anabaena, heterocyst differentiation is accompanied by rearrangement of some nitrogen fixation genes.
J. W. Golden +2 more
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Chapter Eight – Gene Expression during Heterocyst Differentiation
, 2013Abstract Some cyanobacteria (oxygenic phototrophs) grow as chains of vegetative cells (filaments or trichomes). When placed in media lacking combined nitrogen, some cells in the filaments differentiate into N2-fixing heterocysts. The nitrogen fixation system is inactivated by oxygen, and the heterocyst provides a micro-oxic environment for ...
A. Herrero, S. Picossi, E. Flores
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Transcriptional regulation of heterocyst differentiation in Anabaena sp. strain PCC 7120
Russian Journal of Plant Physiology, 2013Anabaena sp. strain PCC 7120 is a filamentous cyanobacterium, in which particular vegetative cells differentiate into heterocysts with a regular spacing of 10–15 cells. Heterocysts are specialized cells for nitrogen fixation, and its differentiation is triggered by limitation of combined nitrogen in the medium.
S. Ehira
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Heterocyst and akinete differentiation in cyanobacteria: a view toward cyanobacterial symbiosis
, 2020Cyanobacteria are an ancient, phylogenetically coherent group of organisms characterized by oxygenic photosynthesis. They have evolved several differentiated cell variants that include heterocysts and akinetes to perform specialized functions. Heterocyst
Pratika Singh, Azmi Khan, A. Srivastava
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Molecular Microbiology, 2023
The filamentous cyanobacterium Anabaena sp. PCC 7120 is able to form heterocysts for nitrogen fixation. Heterocyst differentiation is initiated by combined‐nitrogen deprivation, followed by the commitment step during which the developmental process ...
Wei-Yue Xing, Jing Liu, Cheng-Cai Zhang
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The filamentous cyanobacterium Anabaena sp. PCC 7120 is able to form heterocysts for nitrogen fixation. Heterocyst differentiation is initiated by combined‐nitrogen deprivation, followed by the commitment step during which the developmental process ...
Wei-Yue Xing, Jing Liu, Cheng-Cai Zhang
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Heterocyst Differentiation in Anabaena ambigua Rao
Biochemie und Physiologie der Pflanzen, 1973Summary The development of heterocysts in the blue-green alga Anabaena ambigua can be induced by the removal of combined nitrogen (ammonia) from the growth medium. Differentiation of heterocysts is found to be inhibited by actinomycin-D, puromycin, 5-fluorouracil, chloramphenicol, cyclohexamide.
Shanta R. Kale +2 more
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On the reversibility of heterocyst differentiation
British Phycological Journal, 1974Heterocyst development in the blue-green alga Anabaena cylindrica Lemm. was arrested by ammonia at an early stage of differentiation only. No dedifferentiation or germination of heterocysts in the presence of ammonia could be detected.
S.A. Kulasooriya, Peter Fay
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