ROLE OF COPPER IN CADMIUM METABOLISM IN THE BASIDIOMYCETES PLEUROTUS-OSTREATUS

被引：4

作者：

FAVERO, N ^{[1
]}

COSTA, P ^{[1
]}

ROCCO, GP ^{[1
]}

机构：

[1] LAB MYCOL,I-35100 PADUA,ITALY

来源：

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-PHARMACOLOGY TOXICOLOGY & ENDOCRINOLOGY | 1990年 / 97卷 / 02期

关键词：

D O I：

10.1016/0742-8413(90)90145-Y

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

1. Cultivation of Pleurotus ostreatus on cadmium-enriched substrates always implies a significant increase of copper together with cadmium in fruit bodies. 2. In fruits, cadmium accumulates in the subcellular cytosoluble fraction, according to exposure dose; also copper mainly accumulates in the cytosol. 3. Cadmium and copper are mainly bound to components weighing 3500 and 600 D in different percentages according to exposure dose: both of these proteins are present in the control as copper-chelating compounds. 4. Amino acid analysis reveals many similarities between these components, with higher amounts of: aspartic acid (15%), glutamic acid (10-13%), cysteine (8.5-10%), glycine (10%). 5. Zinc is excluded from these interactions; its homeostatis is, however, affected by cadmium exposure.

引用

页码：297 / 303

页数：7

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