TY - JOUR
T1 - Grain yield and arsenic uptake of upland rice inoculated with arbuscular mycorrhizal fungi in As-spiked soils
AU - Wu, Fuyong
AU - Hu, Junli
AU - Wu, Shengchun
AU - WONG, Ming Hung
N1 - Funding information:
The present project was supported by the Research Grants Council of Hong Kong (HKBU-203011), the Special Equipment Grant of RGC (SEG HKBU09), and the Mini-AoE (Area of excellence) of Hong Kong Baptist University (RC/AOE/08-09/01).
Publisher copyright:
© 2013, Springer-Verlag Berlin Heidelberg
PY - 2015/6/20
Y1 - 2015/6/20
N2 - A pot trial was conducted to investigate the effects of three arbuscular mycorrhizal (AM) fungi species, including Glomus geosporum BGC HUN02C, G. versiforme BGC GD01B, and G. mosseae BGC GD01A, on grain yield and arsenic (As) uptake of upland rice (Zhonghan 221) in As-spiked soils. Moderate levels of AM colonization (24.1–63.1 %) were recorded in the roots of upland rice, and up to 70 mg kg−1 As in soils did not seem to inhibit mycorrhizal colonization. Positive mycorrhizal growth effects in grain, husk, straw, and root of the upland rice, especially under high level (70 mg kg−1) of As in soils, were apparent. Although the effects varied among species of AM fungi, inoculation of AM fungi apparently enhanced grain yield of upland rice without increasing grain As concentrations in As-spiked soils, indicating that AM fungi could alleviate adverse effects on the upland rice caused by As in soils. The present results also show that mycorrhizal inoculation significantly (p < 0.05) decreased As concentrations in husk, straw, and root in soils added with 70 mg kg−1 As. The present results suggest that AM fungi are able to mitigate the adverse effects with enhancing rice production when growing in As-contaminated soils.
AB - A pot trial was conducted to investigate the effects of three arbuscular mycorrhizal (AM) fungi species, including Glomus geosporum BGC HUN02C, G. versiforme BGC GD01B, and G. mosseae BGC GD01A, on grain yield and arsenic (As) uptake of upland rice (Zhonghan 221) in As-spiked soils. Moderate levels of AM colonization (24.1–63.1 %) were recorded in the roots of upland rice, and up to 70 mg kg−1 As in soils did not seem to inhibit mycorrhizal colonization. Positive mycorrhizal growth effects in grain, husk, straw, and root of the upland rice, especially under high level (70 mg kg−1) of As in soils, were apparent. Although the effects varied among species of AM fungi, inoculation of AM fungi apparently enhanced grain yield of upland rice without increasing grain As concentrations in As-spiked soils, indicating that AM fungi could alleviate adverse effects on the upland rice caused by As in soils. The present results also show that mycorrhizal inoculation significantly (p < 0.05) decreased As concentrations in husk, straw, and root in soils added with 70 mg kg−1 As. The present results suggest that AM fungi are able to mitigate the adverse effects with enhancing rice production when growing in As-contaminated soils.
KW - Agro-products safety
KW - Arbuscular mycorrhizal fungi
KW - Arsenic contamination
KW - Rice
UR - http://www.scopus.com/inward/record.url?scp=84931562501&partnerID=8YFLogxK
U2 - 10.1007/s11356-012-1440-9
DO - 10.1007/s11356-012-1440-9
M3 - Journal article
C2 - 23292227
AN - SCOPUS:84931562501
SN - 0944-1344
VL - 22
SP - 8919
EP - 8926
JO - Environmental Science and Pollution Research
JF - Environmental Science and Pollution Research
IS - 12
ER -