期刊
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
卷 12, 期 4, 页码 384-403出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15226510903051740
关键词
arsenic; brake fern; hyperaccumulator; mycorrhizae; chlorophyll
资金
- Research Grants Council of Hong Kong [HKBU-CERG 2004-05-2145/04M]
This study investigated the contributions of mixed arbuscular mycorrhizal fungi (AMF) inoculumi.e., mixed populations of indigenous mycorrhiza (Glomus intraradices, Glomus geosporum, Glomus mosseae) (IM) isolated from arsenic (As) contaminated soil and non-indigenous mycorrhiza such as G. mosseae (GM), which possess metal tolerance characteristicsand the addition of phosphate rock (PR) towards the uptake and accumulation of As by Pteris vittata (As hyperaccumlator) grown in As-contaminated soil. Regardless of As levels added to soil, plant growth was substantially improved in amended treatments when compared with the control. In addition, root surface area (0 mg/kg As: 15.2 cm2; 150 mg/kg As: 16.9 cm2; 300 mg/kg As: 20.7 cm2), chlorophyll contents (0 mg/kg As: 1.16 mg/g; 150 mg/kg As: 1.46 mg/g; 300 mg/kg As: 1.81 mg/g) and As translocation factor (0 mg/kg As: 0; 150 mg/kg As: 4.29; 300 mg/kg As: 5.22) in P. vittata of PR+IM/GM were also increased. Such combination could further enhance plant growth (indicated by higher N, P and chlorophyll contents) and As uptake by P. vittata.
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