Nodularin, a cyanobacterial toxin, is synthesized in planta by symbiotic Nostoc sp.
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چکیده
منابع مشابه
Production of High Amounts of Hepatotoxin Nodularin and New Protease Inhibitors Pseudospumigins by the Brazilian Benthic Nostoc sp. CENA543
Nostoc is a cyanobacterial genus, common in soils and a prolific producer of natural products. This research project aimed to explore and characterize Brazilian cyanobacteria for new bioactive compounds. Here we report the production of hepatotoxins and new protease inhibitors from benthic Nostoc sp. CENA543 isolated from a small, shallow, saline-alkaline lake in the Nhecolândia, Pantanal wetla...
متن کاملDifferentiation in Nostoc muscorum: nitrogenase is synthesized in heterocysts.
Cellular differentiation can be observed in certain filamentous blue-green algae after transfer of the cells from medium containing NH(4) (+) or NO(3) (-) to nitrogen-free medium. The appearance of differentiated cells (heterocysts) is accompanied by an increase in the activity of nitrogenase, an enzyme complex that reduces N(2) to NH(3). We have separated vegetative cells from heterocysts in d...
متن کاملCompetition among symbiotic cyanobacterial Nostoc strains forming artificial associations with rice (Oryza sativa).
Competition among four symbiotically competent Nostoc strains, colonizing rice roots, was examined using hetR-DGGE (denaturing gradient gel electrophoresis) as strain identification. Although mixed in various combinations, only one strain at a time associated with the rice roots. Nostoc strain 8964:3 was the most competitive and our data suggest that its competitive fitness was dependent on rap...
متن کاملPathway for Biodegrading Nodularin (NOD) by Sphingopyxis sp. USTB-05.
Nodularin (NOD) is greatly produced by Nodularia spumigena and released into the environment when toxic cyanobacterial blooms happened in natural water body, which is seriously harmful to human and animals. The promising bacterial strain of Sphingopyxis sp. USTB-05 was found to have an ability in biodegrading NOD. Initially, 11.6 mg/L of NOD could be completely eliminated within 72 h by whole c...
متن کاملIdentification and toxigenic potential of a cyanobacterial strain (Stigomena sp.)
Cyanobacteria are well known for their production of a multitude of highly toxic substances . The genus Stigomena is regarded as good candidates for producing biologically active secondary metabolites, which are highly toxic to humans and other animals. The carcass of a dog was found at the shore of Lake Ali-Abad, Iran. Biomass from the discovery site appeared to be of cyanobacterial nature. We...
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ژورنال
عنوان ژورنال: The ISME Journal
سال: 2012
ISSN: 1751-7362,1751-7370
DOI: 10.1038/ismej.2012.25