Freshwater phytoplankton: biotransformation of inorganic arsenic to methylarsenic and organoarsenic
نویسندگان
چکیده
منابع مشابه
Bioaccumulation, biotransformation and trophic transfer of arsenic in the aquatic food chain.
The occurrence, distribution, speciation, and biotransformation of arsenic in aquatic environment (marine and freshwater) have been studied extensively by several research groups during last couple of decades. However, most of those studies have been conducted in marine waters, and the results are available in a number of reviews. Speciation, bioaccumulation, and biotransformation of arsenic in...
متن کاملArsenic in Freshwater Systems: Influence of Eutrophication on its
26 Arsenic (As) exists in a variety of chemical forms, and microbial metabolism results in 27 the occurrence of thermodynamically unstable arsenite (As) and methylarsenic compounds 28 in freshwaters (rivers and lakes). The inorganic forms (As and As) and the methylated 29 forms (methylarsonic acid; MMAA and dimethylarsinic acid; DMAA) are the main species 30 of As in freshwaters while the bulk ...
متن کاملComparison of Bioavailability and Biotransformation of Inorganic and Organic Arsenic to Two Marine Fish.
Dietary uptake could be the primary route of arsenic (As) bioaccumulation in marine fish, but the bioavailability of inorganic and organic As remains elusive. In this study, we investigated the trophic transfer and bioavailability of As in herbivorous rabbitfish Siganus fuscescens and carnivorous seabass Lateolabrax japonicus. Rabbitfish were fed with one artificial diet or three macroalgae, wh...
متن کاملArsenic and inorganic arsenic compounds
Arsenic, arsenic trioxide and pentoxide, arsenous acids, arsenic acid and their salts (arsenites and arsenates) are carcinogenic substances (Carcinogen category 1) and do not, therefore, have MAK and BAT values (Greim 2002). The former TRK value (technical exposure limit) for arsenic and its inorganic compounds was 0.10 mg arsenic/m (measured as the inhalable fraction of the aerosol; calculated...
متن کاملBiotransformation of inorganic arsenic in a marine herbivorous fish Siganus fuscescens after dietborne exposure.
Arsenic (As) is well known to be biodiminished along marine food chains. The marine herbivorous fish at a lower trophic level are expected to accumulate more As. However, little is known about how marine herbivorous fish biotransform the potential high As bioaccumulation. Therefore, the present study quantified the biotransformation of two inorganic As species (As(III) and As(V)) in a marine he...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2019
ISSN: 2045-2322
DOI: 10.1038/s41598-019-48477-7