Grain yield and arsenic uptake of upland rice inoculated with arbuscular mycorrhizal fungi in As-spiked soils

Fuyong WU, Junli HU, Shengchun WU, Ming Hung WONG

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16 Citations (Scopus)

Abstract

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. Copyright © 2013 Springer-Verlag Berlin Heidelberg.
Original languageEnglish
Pages (from-to)8919-8926
JournalEnvironmental Science and Pollution Research
Volume22
Issue number12
Early online date06 Jan 2013
DOIs
Publication statusPublished - Jun 2015

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arsenic
mycorrhizal fungi
highlands
grain yield
uptake mechanisms
rice
soil
hulls
straw
Glomus geosporum
adverse effects
Glomus versiforme
Glomus mosseae
polluted soils

Citation

Wu, F., Hu, J., Wu, S., & Wong, M. H. (2015). Grain yield and arsenic uptake of upland rice inoculated with arbuscular mycorrhizal fungi in As-spiked soils. Environmental Science and Pollution Research, 22(12), 8919-8926. doi: 10.1007/s11356-012-1440-9.

Keywords

  • Arbuscular mycorrhizal fungi
  • Rice
  • Arsenic contamination
  • Agro-products safety