Record ID No. |
5045 |
Author(s) |
W.F. Chan, H. Li, F.Y. Wu, S.C. Wu, *M.H. Wong , 2013 |
Affiliation |
Croucher Institute for Environmental Sciences, and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, Special Administrative Region, *Email: mhwong@hkbu.edu.hk |
Title |
Arsenic uptake in upland rice inoculated with a combination or single arbuscular mycorrhizal fungi |
Source. Vol.(no):Page |
Journal of Hazardous Materials 262(November): 1116-1122p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Pollution |
Sub-subjects |
Soil pollution |
Host |
Oryza sativa |
Organism |
Glomus geosporum (Gg), G. mosseae (Gm) and G. versiforme (Gv) |
Country |
Hong Kong, East Asia |
Abstracts |
A pot trial was conducted to investigate the role of arbuscular mycorrhizal fungi (AMF) on arsenic (As) uptake of upland rice (Oryza sativa L.) cultivar, Zhonghan 221; where the following 3 species of Glomus geosporum (Gg), G. mosseae (Gm) and G. versiforme (Gv) were applied as single or combined inoculations. In general, Gm significantly enhanced (p < 0.05) total As concentration in Zhonghan 221 when compared to the non mycorrhizal (NM) treatment. The treatment inoculated with Gg + Gm increased total phosphorus (P) uptake and decreased total As uptake in the ingestible rice parts (husks and grains). In terms of AMF colonization rates, Gm had significantly higher (p < 0.05) average values of 57.3% and 66.6% when grown in As0 and As40 soils, respectively, in comparison to that of Gg and Gv, and finally dropped to 3.63% when grown in As80 soil. There was a significant difference (p < 0.05) between single AMF species (Gg or Gv) and AMF mixture treatments (Gg + Gv, Gg + Gm, Gv + Gm and Gg + Gv + Gm) in terms of total As concentrations in rice. No significant correlation between AMF colonization rates and As uptake in grains (r = 0.150, p > 0.01) and total P (r = 0.002, p > 0.01) were observed. |