PMID: 20131596Feb 6, 2010Paper

Soluble protein and acid phosphatase exuded by ectomycorrhizal fungi and seedlings in response to excessive Cu and Cd

Journal of Environmental Sciences (China)
Weishuang ZhengYi Huang

Abstract

Fungi and their symbionts can alleviate heavy metal stress by exuding soluble proteins and enzymes. This study examined the role of soluble protein and acid phosphatase (APase) exuded by Xerocomus chrysenteron, an ectomycorrhizal fungus, and the seedlings of its symbiont, Chinese pine (Pinus tabulaeformis), under conditions of excessive Cu and Cd. The growth type showed that this poorly studied ectomycorrhizal fungus was capable of tolerating high concentrations of Cu, and may be useful in phytoremediation. X. chrysenteron grew well at 80 mg/L Cu, and the EC50 for Cd was 17.82 mg/L. X. chrysenteron also showed enhanced exudation of soluble protein in both isolated and inoculated cultivations under the influence of Cu and Cd. Soluble protein exudation, however, differed under Cu and Cd stress in isolates. In mediums containing Cu, soluble protein exudation increased with concentration, but in mediums containing Cd the content of soluble protein increased to a comparable level at all concentrations. This study demonstrated that soluble protein was related to heavy metal tolerance, although the different ions played different roles. While APase activity in exudates of fungi and seedlings decreased under Cu and Cd stress in compari...Continue Reading

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Citations

Nov 25, 2011·Biological Trace Element Research·Rogelio Carrillo-González, Ma del Carmen A González-Chávez
Dec 3, 2013·Brazilian Journal of Microbiology : [publication of the Brazilian Society for Microbiology]·R F SilvaR Andreazza
Aug 4, 2015·Environmental Microbiology·Xinjin LiangGeoffrey Michael Gadd
Dec 6, 2017·Environmental Science and Pollution Research International·Nian Liu, Zhonghua Wu
May 18, 2019·Environmental Science and Pollution Research International·Liwei ChaiYi Huang

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