Elstner E F, Fink Rita, Höll W, Lengfelder E, Ziegler H
Institut für Botanik und Mikrobiologie, Technische Universität München, Arcisstrasse 21, D-8000, München 2, Federal Republic of Germany.
Strahlenbiologisches Institut der Ludwig Maximilians-Universität München, Schillerstrasse 42, D-8000, München 2, Federal Republic of Germany.
Oecologia. 1987 Oct;73(4):553-558. doi: 10.1007/BF00379415.
Different mushrooms, mosses and corresponding soil samples have been collected mainly from two sites in the alpine region of southwestern Bavaria. At the end of the growthseason, September 1986, gamma spectroscopic analysis showed that the moss-, mould, and needle-layer contained considerably more Cs and Cs activity per unit fresh weight than eight different species of mushroom. These two isotopes were carried into the biotop mainly as a consequence of the Chernobyl accident. J could not be found any more in the samples ca. 5-6 months after the catastrophe. The activity of the cesium isotopes decreased with increasing soil depth. In the mushrooms the activity was relatively high in Xerocomus badius and surprisingly low in Boletus edulis; samples of the latter and of Cantharellus cibarius collected in September 1985 (before the accident) and kept deep frozen contained almost identical amounts of Cs as those collected from August to October 1986. Mushrooms contained considerably more of the natural isotope K than the needlelayers and the soil samples in the neighbourhood. In all mushrooms except Xerocomus badius the activity of K was generally higher than the Cs activity. The results indicate that except Xerocomus badius the analyzed mushrooms do not actively take up Cs from the soil, in contrast to K.
不同的蘑菇、苔藓及相应的土壤样本主要采自巴伐利亚西南部高山地区的两个地点。在生长季末，即1986年9月，伽马能谱分析表明，苔藓、霉菌和针叶层每单位鲜重所含的铯及铯活度比8种不同的蘑菇要多得多。这两种同位素主要是切尔诺贝利事故的结果而进入生物群落的。在灾难发生约5至6个月后，样本中就再也检测不到它们了。铯同位素的活度随土壤深度增加而降低。在蘑菇中，褐疣柄牛肝菌的活度相对较高，而美味牛肝菌的活度则出奇地低；1985年9月（事故前）采集并深度冷冻保存的美味牛肝菌和鸡油菌样本所含的铯量与1986年8月至10月采集的样本几乎相同。蘑菇所含的天然同位素钾比附近的针叶层和土壤样本多得多。在除褐疣柄牛肝菌之外的所有蘑菇中，钾的活度通常高于铯的活度。结果表明，除褐疣柄牛肝菌外，所分析的蘑菇不像钾那样从土壤中主动吸收铯。
