Effect of arbuscular mycorrhizal fungi and PGPR on heavy metal uptake by Ladys finger grown on sewage sludge amended soil
A pot experiment was conducted to determine the effect of arbuscular mycorrhizal fungi (AMF) and a plant growth-promoting rhizobacteria (PGPR) on the uptake of heavy metals by ladys fingers grown on soil amended with sewage sludge. Ladys finger seedlings were grown in soil amended with 5％ (w/w) sewage sludge. Glomus mosseae and Bacillus sphaericus UPME10 were inoculated individually or in combination to the respective pots. Plants inoculated with both mycorrhiza and bacteria had signifi-cantly higher shoot, root and fruit yields compared to the non- inoculated plants. Plants uptake of N and P was subsequently in-creased with microbial inoculation. In general, the uptake of heavy metals (Cd, Pb, Cu and Zn) was higher in the plant shoots and roots than in the fruits. Microbial inoculation had no significant effect on heavy metals uptake except for Zn Highest Zn content was observed in the fruits of plants inoculated with both AMF and PGPR. High mycorrhizal root infection was observed in plants inoculated with MF individually or in combination with UPMB10.
Ladys finger arbuscular mycorrhiza Glomus mossaea PGPR heavy metals sewage sludge.
O. Radziah I. Che Fauziah A. Azizul Hafiz
Department of Land management, Faculty of Agriculture, University Putra Malaysia, 43400 Serdang, Selangor, Malaysia
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
548-549
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）