Croucher Institute for Environmental Sciences, and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, Special Administrative Region.
J Hazard Mater. 2013 Nov 15;262:1116-22. doi: 10.1016/j.jhazmat.2012.08.020. Epub 2012 Aug 16.
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.
进行了一项盆栽试验，以研究丛枝菌根真菌（AMF）对旱稻（Oryza sativa L.）品种中旱 221 吸收砷（As）的作用；其中，应用了 3 种 Glomus geosporum（Gg）、G. mosseae（Gm）和 G. versiforme（Gv）作为单一或组合接种。一般来说，与非菌根（NM）处理相比，Gm 显著增加（p<0.05）了中旱 221 中的总 As 浓度。接种 Gg+Gm 的处理增加了可食用稻部分（稻壳和米粒）中的总磷（P）吸收量，并降低了总 As 吸收量。就 AMF 定殖率而言，与 Gg 和 Gv 相比，Gm 在 As0 和 As40 土壤中的平均定殖率分别显著更高（p<0.05），分别为 57.3%和 66.6%，而在 As80 土壤中则降至 3.63%。在稻米中总 As 浓度方面，单一 AMF 物种（Gg 或 Gv）和 AMF 混合物处理（Gg+Gv、Gg+Gm、Gv+Gm 和 Gg+Gv+Gm）之间存在显著差异（p<0.05）。在谷粒中（r = 0.150，p > 0.01）和总 P（r = 0.002，p > 0.01）中，AMF 定殖率与 As 吸收之间没有显著相关性。
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