نتایج جستجو برای: toxin producing phytoplankton
تعداد نتایج: 189009 فیلتر نتایج به سال:
Background: Staphylococcus aureus is a major foodborne pathogen throughout the world. Enterotoxins and toxic shock syndrome toxin-1 are important virulence factors and as pyrogenic toxin superantigens have profound effects on the ir host. Thus circulation of TSST1 producing S.aureus among people and food chain is a worrying issue. The present paper was conducted to study Prevalence of tst, entC...
PETROVA, D., 2008. Major bloom producing phytoplankton species in the lakes along the Bulgarian Black Sea Coast. Bulg. J. Agric. Sci.; 14: 201-208 Archive data analysis shows that during the different periods of anthropogenic impact phytoplankton production reaches pathologically high levels. Thus, phytoplankton is assumed as an indicator of marine water quality and ecological health. Its long-...
BACKGROUND Binary toxin-producing Clostridium difficile infections (CDI) are known to be more severe and to cause higher case fatality rates than those by binary toxin-negative isolates. There has been few data of binary toxin-producing CDI in Korea. Objective of the study is to characterize clinical and microbiological trait of CDI cause by binary-toxin producing isolates in Korea. MATERIALS...
Background & Aims: Shiga toxin-producing Escherichia coli (STEC), has appeared universally as an important zoonotic food-borne pathogen. Infection with STEC in human has different clinical picture, from mild secretory diarrhea, to hemorrhagic colitis (HC) which can lead to life threatening sequelae like haemolytic uremic syndrome. The purpose of this study was to determine antibiotic resistan...
Algal blooms occur in freshwater bodies throughout the world, often leading to fish kills. Cases of these kills along Ural River were reported 2018–2019, involving significant amount sturgeon farming areas. In this study, analysis algal samples from delta up 100 km inland was carried out August December 2019 using imaging flow cytometry (IFC), molecular biological, and microscopic techniques. W...
Contents The 13 chapters of this book cover a broad spectrum of topics. Chapter 1 discusses the variability and trends in global sea ice cover and sea level, and their potential effects on physicochemical parameters. Chapter 2 presents new techniques in environmental monitoring. Topics discussed include in-situ harmful algal bloom monitoring, liquid chromatography and mass spectrometry, biosens...
During a large outbreak of Shiga toxin-producing Escherichia coli illness associated with an agricultural show in Australia, we used whole-genome sequencing to detect an IS1203v insertion in the Shiga toxin 2c subunit A gene of Shiga toxin-producing E. coli. Our study showed that clinical illness was mild, and hemolytic uremic syndrome was not detected.
Historically, phosphorus (P) has been considered the primary limiting nutrient for phytoplankton assemblages in freshwater ecosystems. This review, supported by new findings from Lake Erie, highlights recent molecular, laboratory, and field evidence that the growth and toxicity of some non-diazotrophic blooms of cyanobacteria can be controlled by nitrogen (N). Cyanobacteria such as Microcystis ...
Toxin production is widespread among aquatic microalgae, suggesting a functional advantage for organisms producing toxic compounds. However, the biological role of algal toxin production is only vaguely understood. Here, we show that excretion of a toxic substance in the phagotrophic phytoflagellate Prymnesium parvum (Prymnesiophyceae) constitutes a mechanism to immobilize and seize motile prey...
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