Pilot Study of Bioaccumulation and Distribution of Cesium, Potassium, Sodium and Calcium in King Oyster Mushroom (Pleurotus Eryngii) Grown Under Controlled Conditions
Pilot Study of Bioaccumulation and Distribution of Cesium, Potassium, Sodium and Calcium in King Oyster Mushroom (Pleurotus Eryngii) Grown Under Controlled Conditions
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DOI：
10.1080/15226510802114987
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发表时间：
2008-09
影响因子：
3.7
通讯作者：
G. Bystrzejewska-Piotrowska;D. Pianka;M. Bazala;R. Stęborowski;J. L. Manjón;P. L. Urban
中科院分区：
文献类型：
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作者：
G. Bystrzejewska-Piotrowska;D. Pianka;M. Bazala;R. Stęborowski;J. L. Manjón;P. L. Urban
本文初步研究了碱、碱土元素向腐生真菌菌丝体和子实体转移的相互关系。研究了4种元素(铯、钾、钠、钙)在人工栽培杏鲍菇中的积累和分布。用原子吸收/发射光谱分析了菌盖、菌柄和底物的元素组成，以评估判别、浓度和转移因子。测定的各元素迁移系数大小顺序为：CS>、K>、Na>、Ca。铯在菌盖中的积累比在菌柄中的积累要高。铯在子实体中的分布取决于底物中其他离子的存在。Ca~(2+)的加入限制了铯和钾从柄到帽的运输。钠和钙主要积累在菌柄中。在对照试验中，在不添加K+、Na+和Ca~(2+)的情况下，底物中62%的铯被菌丝体提取并运输到子实体中。讨论了果腐菌在生物修复中的可能应用。
This pilot study presents preliminary results on interrelations between alkali and alkaline earth elements during their transfer to mycelium and fruitbodies of saprophytic fungi. The accumulation and distribution of four elements (cesium, potassium, sodium, and calcium) was evaluated in king oyster mushroom (Pleurotus eryngii) cultivated under controlled conditions. Elemental composition of caps, stipes, and the substrate was analyzed by atomic absorption/emission spectroscopy to evaluate discrimination, concentration, and transfer factors. The transfer factors determined for all the investigated elements were different and can be put in the following order: Cs > K > Na > Ca. There has been a higher accumulation of cesium in caps than in stipes. Distribution of cesium in fruitbodies depended on the presence of other ions in the substrate. The addition of Ca2+ limited the transport of cesium and potassium from stipes to caps. Sodium and calcium were mainly accumulated in the stipes. In a control experiment, without supplementation with K+, Na+, and Ca2+, ∼ 62% of the cesium present in the substrate was extracted by mycelium and transported to the fruitbodies. Possible applications of fruiting saprophytic fungi in bioremediation are discussed.