Mercury methylation by fish intestinal contents
نویسندگان
چکیده
منابع مشابه
The methylation of mercury by the gastro-intestinal contents of the rat.
Bacteria in the sediments of lakes and rivers, and in soil, have been shown to convert inorganic mercury salts into the more toxic methylmercury and dimethylmercury, which are absorbed from the human gastrointestinal tract much more rapidly than their inorganic counterparts (Jensen & Jernelov, 1969; Matsumura et al., 1972; Beckert et al., 1974; Clarkson, 1971). Abdulla et al. (1973) demolistrat...
متن کاملEvaluating Total Mercury and Methyl Mercury Contents in Canned Tuna Fish of the Persian Gulf
Due to hygienic risks of mercury residues in food and marine originated supplements, measuring total mercury and methyl mercury contents of canned tuna as a highly consumable marine food product is essential. In this study, 40 canned Tuna fish (from Persian Gulf) were collected in 2015 and then flame atomic absorption spectrometer (FAAS) and thermo gas chromatography mass spectrophotometry were...
متن کاملEvaluating Total Mercury and Methyl Mercury Contents in Canned Tuna Fish of the Persian Gulf
Due to hygienic risks of mercury residues in food and marine originated supplements, measuring total mercury and methyl mercury contents of canned tuna as a highly consumable marine food product is essential. In this study, 40 canned Tuna fish (from Persian Gulf) were collected in 2015 and then flame atomic absorption spectrometer (FAAS) and thermo gas chromatography mass spectrophotometry were...
متن کاملIntestinal Absorption of Mercury in Vitro from Intestinal Contents of Methylmercury Administered Mice
Intestinal flora plays an important role in the decomposition and fecal excretion of methylmercury. The assumed mechanism is that decomposition of organic mercury (o-Hg) to inorganic mercury (i-Hg) by intestinal flora in cecum decreases the reabsorption of mercury in large intestines. To confirm this hypothesis, we examined the large intestinal mercury absorption in vitro from intestinal conten...
متن کاملMercury methylation by dissimilatory iron-reducing bacteria.
The Hg-methylating ability of dissimilatory iron-reducing bacteria in the genera Geobacter, Desulfuromonas, and Shewanella was examined. All of the Geobacter and Desulfuromonas strains tested methylated mercury while reducing Fe(III), nitrate, or fumarate. In contrast, none of the Shewanella strains produced methylmercury at higher levels than abiotic controls under similar culture conditions. ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1980
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.40.4.777-782.1980