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Effect of rhizospheric environment of VA-mycorrhizal plants on forms of Cu, Zn, Pb and Cd in polluted soil

Huang, Y ; Chen, Y ; Tao, S

Ying yong sheng tai xue bao, 2000-06, Vol.11 (3), p.431

China

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Effect of rhizospheric environment of VA-mycorrhizal plants on forms of Cu, Zn, Pb and Cd in polluted soil
Autor: Huang, Y ; Chen, Y ; Tao, S
Assuntos: Cadmium - metabolism ; Copper - metabolism ; Ecosystem ; Environment ; Fungi - growth & development ; Lead - metabolism ; Metals, Heavy - metabolism ; Plant Roots - growth & development ; Plant Roots - microbiology ; Soil Pollutants - metabolism ; Symbiosis ; Zea mays - growth & development ; Zea mays - microbiology ; Zinc - metabolism
É parte de: Ying yong sheng tai xue bao, 2000-06, Vol.11 (3), p.431
Descrição: Maize (Zea mays L.) was inoculated with or without VA mycorrhizal (Glomus mosseae) and cultivated in a heavy metals contaminated soil. The distribution and dynamics of Cu, Zn, Pb and Cd forms in rhizosphere of maize inoculated with or without VA-mycorrhizal were analyzed with the technique of sequential extraction. Comparing with control soil, exchangeable Cu in rhizospheric soil increased significantly, and the exchangeable Cd trended down. In rhizosphere of VA-mycorrhizal maize, the amounts of Cu, Zn and Pb bound to organic matter were significantly higher than those in rhizosphere of non-mycorrhizal maize, while the four tested metals bound to carbonates and to iron and manganese oxides were constant in rhizosphere of mycorrhizal and non-mycorrhizal maize. These results illustrated that the plant roots could influence the distribution and dynamics of metal forms in rhizosphere, and much for mycorrhizal plants than for non-mycorrhizal plants. At excessive concentration of soil metals, mycorrhizal roots migh
Editor: China
Idioma: Chinês

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Effect of rhizospheric environment of VA-mycorrhizal plants on forms of Cu, Zn, Pb and Cd in polluted soil

Huang, Y ; Chen, Y ; Tao, S

China

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