Dynamics of microcystin-degrading bacteria in mucilage of Microcystis
نویسندگان
چکیده
منابع مشابه
Microcystin-degrading bacteria affect mcyD expression and microcystin synthesis in Microcystis spp.
Cyanobacterial blooms occur increasingly often and cause ecological, economic and human health problems worldwide. Microcystins (MCs) are the dominant toxins produced by cyanobacteria and are implicated in epidemic disease and environmental problems. Extensive research has been reported on the various regulating factors, e.g., light, temperature, nutrients such as nitrogen and phosphorus, pH, i...
متن کاملIsolation and identification of novel microcystin-degrading bacteria.
Of 31 freshwater bacterial isolates screened using the Biolog MT2 assay to determine their metabolism of the microcystin LR, 10 were positive. Phylogenetic analysis (16S rRNA) identified them as Arthrobacter spp., Brevibacterium sp., and Rhodococcus sp. This is the first report of microcystin degraders that do not belong to the Proteobacteria.
متن کاملInfluence of temperature, mixing, and addition of microcystin‐LR on microcystin gene expression in Microcystis aeruginosa
Cyanobacteria, such as the toxin producer Microcystis aeruginosa, are predicted to be favored by global warming both directly, through elevated water temperatures, and indirectly, through factors such as prolonged stratification of waterbodies. M. aeruginosa is able to produce the hepatotoxin microcystin, which causes great concern in freshwater management worldwide. However, little is known ab...
متن کاملthe study of bright and surface discrete cavity solitons dynamics in saturable nonlinear media
امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...
Isolation and Characterization of Microcystin- Degrading Bacterium
The most commonly encountered cyanobacterial toxins in freshwater are microcystins. Microcystins are extremely stable and resistant to chemical hydrolysis or oxidation and can cause illness or death in animals and humans. In this study, a total of 15 bacterial strains were isolated and screened for microcystin degradative activity from Kaen Nakhon Lake, Khon Kaen Province, Thailand. Among these...
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ژورنال
عنوان ژورنال: Microbial Ecology
سال: 2003
ISSN: 0095-3628,1432-184X
DOI: 10.1007/s00248-002-3007-7