Suspect and non-target screening of acutely toxic Prymnesium parvum
نویسندگان
چکیده
منابع مشابه
Transcriptomic response of the toxic prymnesiophyte Prymnesium parvum (N. Carter) to phosphorus and nitrogen starvation
The ichthyotoxic and mixotrophic prymnesiophyte Prymnesium parvum is known to produce dense virtually monospecific blooms in marine coastal, brackish, and inshore waters. Fish-killing Pyrmnesium blooms are often associated with macronutrient imbalanced conditions based upon shifts in ambient nitrogen (N):phosphorus (P) ratios. We therefore investigated nutrient-dependent cellular acclimation me...
متن کاملPrymnesins: Toxic Metabolites of the Golden Alga, Prymnesium parvum Carter (Haptophyta)
Increasingly over the past century, seasonal fish kills associated with toxic blooms of Prymnesium parvum have devastated aquaculture and native fish, shellfish, and mollusk populations worldwide. Protracted blooms of P. parvum can result in major disturbances to the local ecology and extensive monetary losses. Toxicity of this alga is attributed to a collection of compounds known as prymnesins...
متن کاملThe Cytotoxic Principle of the Phytoflagellate Prymnesium Parvum
The cytotoxic events leading to lysis induced in Ehrlich ascites tumor (E.A.) cells by Prymnesium parvum cell extracts were followed microscopically and measured quantitatively as changes in E.A. cell volume, uptake of trypan blue, and release of macromolecular constituents from the cells. Cell swelling was the most immediate response to P. parvum cytotoxin, while cell death and lysis were late...
متن کاملPhotoinactivation of ichthyotoxin from axenic cultures of Prymnesium parvum Carter.
The ichthyotoxin of Prymnesium parvum is inactivated by visible (400 to 510 mmu) as well as by ultraviolet light (255 mmu). The changes in the absorption spectrum of purified (pigment-free) ichthyotoxin during this process indicate that different mechanisms may be involved in the inactivation by visible or ultraviolet light. Photoinactivation is not affected by the presence of cells, cell pigme...
متن کاملPrymnesium parvum toxic blooms: toxin use in allelopathy and predation and how conservation can help aquatic populations
Golden alga, Prymnesium parvum, has become a rising concern in terms of conservation. This is due to the toxic blooms they create that kill populations of fish and phytoplankton. P. parvum produce prymnesin toxins, which cause the blooms to be so dangerous. Previous research has claimed that prymnesins lyse cells and toxify other cells, neurons and fish. Specifically, the toxins have been shown...
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ژورنال
عنوان ژورنال: Science of The Total Environment
سال: 2020
ISSN: 0048-9697
DOI: 10.1016/j.scitotenv.2020.136835