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Mercury and selenium in developing and mature fruiting bodies of Amanita muscaria

文献类型： 外文期刊

作者： Hanc, Anetta 1 ; Fernandes, Alwyn R. 2 ; Falandysz, Jerzy 3 ; Zhang, Ji 5 ;

作者机构： 1.Adam Mickiewicz Univ, Dept Trace Element Anal Spect Method, Umultowska 89b, PL-61614 Poznan, Poland

2.Univ East Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England

3.Univ Gdansk, Environm Chem & Ecotoxicol, Gdansk, Poland

4.Univ Cartagena, Sch Pharmaceut Sci, Environm & Computat Chem Grp, Zaragocilla Campus, Cartagena 130015, Colombia

5.Yunnan Acad Agr Sci, Med Plants Res Inst, Kunming 650200, Yunnan, Peoples R China

关键词： Fly agaric; Ectomycorrhizal; Mushrooms; Methylmercury; Seleno-compounds; Sporocarp development

期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：4.223； 五年影响因子：4.306 ）

ISSN： 0944-1344

年卷期： 2021 年 28 卷 42 期

页码：

收录情况： SCI

摘要： Both mercury (Hg) and selenium (Se) occur in many mushroom species, but the morphological distribution of these elements during different developmental stages of the fruiting bodies is not known. Although Amanita muscaria can be consumed after suitable processing, they are often ignored by mushroom foragers, leaving an abundance for investigative study. Multiple specimens in each of six developmental stages (button to fully mature) were collected in excellent condition during a single morning from the same forested location and composited. With an average of 30 specimens per composite, and low temporal, spatial, and measurement uncertainty, the data are likely to be representative of the typical concentrations of Hg and Se for each developmental stage. Hg (range 0.58-0.74 mg kg(-1) dry weight cap; 0.33 to 0.44 mg kg(-1) dw stipe) and Se (range 8.3-11 mg kg(-1) dw cap; 2.2 to 4.3 mg kg(-1) dw stipe) levels were observed to vary during the developmental stages, and the variability may relate to the demands in growth. In common with some other species, the lower stipe concentrations may be consistent with nutrient/contant transport and support functions. Both Hg and Se levels were lowest during periods of maximum sporocarp growth. Selenium occurs at almost an order of magnitude greater levels than Hg. Due to its role in mitigating the effects of Hg toxicity, this property is of significance to those who consume the species either for nutritional, medicinal, or recreational purposes, although the losses of both these elements during processing are not known.

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