Ajungla T, Sharma G D, Dkhar M S
Dept. of Botany, Nagaland University, Hq: Lumami, P.Box-12, Mokokchung-798 601, India.
J Environ Biol. 2003 Oct;24(4):461-3.
The present investigation was carried out to study the toxicity of heavy metals (Zn, Cd, Cu, Ni, Pb and Al) on the dehydrogenase activity of ectomycorrhizal (Suillus leutus, Scleroderma aurantium, Cenococcum graniforme and Boletus spp.) and non-mycorrhizal rhizospheric soil of pine seedlings. The treatment of heavy metals adversely affected the dehydrogenase activity. Inoculation of mixed ectomycorrhizal fungi harbored increased activity of dehydrogenase. It was observed that in absence of ectomycorrhizae, heavy metals drastically reduced the enzyme activity at higher concentration of metals.
本研究旨在探讨重金属（锌、镉、铜、镍、铅和铝）对松树幼苗外生菌根（褐环乳牛肝菌、橙黄硬皮马勃、颗粒状地球菌和牛肝菌属）及非菌根根际土壤脱氢酶活性的毒性。重金属处理对脱氢酶活性产生了不利影响。接种混合外生菌根真菌后脱氢酶活性有所增加。据观察，在没有外生菌根的情况下，较高浓度的重金属会大幅降低酶活性。
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