Synergistic effects of arbuscular mycorrhizal fungi and phosphate rock on heavy metal uptake and accumulation by an arsenic hyperaccumulator

H. M. Leung; F. Y. Wu; K. C. Cheung; Z. H. Ye; M. H. Wong

doi:10.1016/j.jhazmat.2010.05.042

Synergistic effects of arbuscular mycorrhizal fungi and phosphate rock on heavy metal uptake and accumulation by an arsenic hyperaccumulator

H. M. Leung, F. Y. Wu, K. C. Cheung, Z. H. Ye, M. H. Wong^*

^*Corresponding author for this work

Department of Biology

Research output: Contribution to journal › Journal article › peer-review

57 Citations (Scopus)

Abstract

The effects of arbuscular mycorrhizal (AM) fungi and phosphate rock on the phytorextraction efficiency of a hyperaccumulator (Pteris vittata) and a non-hyperaccumulator (Cynodon dactylon) plant were studied. Both seedlings were planted in As contaminated soil under different treatments {(1) control (contaminated soil only), (2) indigenous mycorrhizas (IM), (3) mixed AM inoculum [indigenous mycorrhiza + Glomus mosseae (IM/Gm)] and (4) IM/Gm + phosphate rock (P rock)} with varying intensities (40%, 70% and 100%) of water moisture content (WMC). Significant As reduction in soil (23.8% of soil As reduction), increase in plant biomass (17.8. g/pot) and As accumulation (2054. mg/kg DW) were observed for P. vittata treated with IM/Gm + PR at 100% WMC level. The overall results indicated that the synergistic effect of mycorrhiza and P rock affected As subcellular distribution of the hyperaccumulator and thereby altered its As removal efficiency under well-watered conditions.

Original language	English
Pages (from-to)	497-507
Number of pages	11
Journal	Journal of Hazardous Materials
Volume	181
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jhazmat.2010.05.042
Publication status	Published - Sept 2010

User-Defined Keywords

Arsenic
Hyperaccumulator
Mycorrhizae
Phosphate
Phytoextraction

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10.1016/j.jhazmat.2010.05.042

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title = "Synergistic effects of arbuscular mycorrhizal fungi and phosphate rock on heavy metal uptake and accumulation by an arsenic hyperaccumulator",

abstract = "The effects of arbuscular mycorrhizal (AM) fungi and phosphate rock on the phytorextraction efficiency of a hyperaccumulator (Pteris vittata) and a non-hyperaccumulator (Cynodon dactylon) plant were studied. Both seedlings were planted in As contaminated soil under different treatments {(1) control (contaminated soil only), (2) indigenous mycorrhizas (IM), (3) mixed AM inoculum [indigenous mycorrhiza + Glomus mosseae (IM/Gm)] and (4) IM/Gm + phosphate rock (P rock)} with varying intensities (40%, 70% and 100%) of water moisture content (WMC). Significant As reduction in soil (23.8% of soil As reduction), increase in plant biomass (17.8. g/pot) and As accumulation (2054. mg/kg DW) were observed for P. vittata treated with IM/Gm + PR at 100% WMC level. The overall results indicated that the synergistic effect of mycorrhiza and P rock affected As subcellular distribution of the hyperaccumulator and thereby altered its As removal efficiency under well-watered conditions.",

keywords = "Arsenic, Hyperaccumulator, Mycorrhizae, Phosphate, Phytoextraction",

author = "Leung, {H. M.} and Wu, {F. Y.} and Cheung, {K. C.} and Ye, {Z. H.} and Wong, {M. H.}",

note = "Funding Information: Financial support from the Research Grants Council of Hong Kong ( HKBU-CERG 2004-05-2145/04M ), Mini-AoE (Areas of Excellence) fund from HKBU ( RC/AoE/08-09/01 ) and technical support from Mr. King Young Man are gratefully acknowledged.",

year = "2010",

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doi = "10.1016/j.jhazmat.2010.05.042",

language = "English",

volume = "181",

pages = "497--507",

journal = "Journal of Hazardous Materials",

issn = "0304-3894",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Synergistic effects of arbuscular mycorrhizal fungi and phosphate rock on heavy metal uptake and accumulation by an arsenic hyperaccumulator

AU - Leung, H. M.

AU - Wu, F. Y.

AU - Cheung, K. C.

AU - Ye, Z. H.

AU - Wong, M. H.

N1 - Funding Information: Financial support from the Research Grants Council of Hong Kong ( HKBU-CERG 2004-05-2145/04M ), Mini-AoE (Areas of Excellence) fund from HKBU ( RC/AoE/08-09/01 ) and technical support from Mr. King Young Man are gratefully acknowledged.

PY - 2010/9

Y1 - 2010/9

N2 - The effects of arbuscular mycorrhizal (AM) fungi and phosphate rock on the phytorextraction efficiency of a hyperaccumulator (Pteris vittata) and a non-hyperaccumulator (Cynodon dactylon) plant were studied. Both seedlings were planted in As contaminated soil under different treatments {(1) control (contaminated soil only), (2) indigenous mycorrhizas (IM), (3) mixed AM inoculum [indigenous mycorrhiza + Glomus mosseae (IM/Gm)] and (4) IM/Gm + phosphate rock (P rock)} with varying intensities (40%, 70% and 100%) of water moisture content (WMC). Significant As reduction in soil (23.8% of soil As reduction), increase in plant biomass (17.8. g/pot) and As accumulation (2054. mg/kg DW) were observed for P. vittata treated with IM/Gm + PR at 100% WMC level. The overall results indicated that the synergistic effect of mycorrhiza and P rock affected As subcellular distribution of the hyperaccumulator and thereby altered its As removal efficiency under well-watered conditions.

AB - The effects of arbuscular mycorrhizal (AM) fungi and phosphate rock on the phytorextraction efficiency of a hyperaccumulator (Pteris vittata) and a non-hyperaccumulator (Cynodon dactylon) plant were studied. Both seedlings were planted in As contaminated soil under different treatments {(1) control (contaminated soil only), (2) indigenous mycorrhizas (IM), (3) mixed AM inoculum [indigenous mycorrhiza + Glomus mosseae (IM/Gm)] and (4) IM/Gm + phosphate rock (P rock)} with varying intensities (40%, 70% and 100%) of water moisture content (WMC). Significant As reduction in soil (23.8% of soil As reduction), increase in plant biomass (17.8. g/pot) and As accumulation (2054. mg/kg DW) were observed for P. vittata treated with IM/Gm + PR at 100% WMC level. The overall results indicated that the synergistic effect of mycorrhiza and P rock affected As subcellular distribution of the hyperaccumulator and thereby altered its As removal efficiency under well-watered conditions.

KW - Arsenic

KW - Hyperaccumulator

KW - Mycorrhizae

KW - Phosphate

KW - Phytoextraction

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DO - 10.1016/j.jhazmat.2010.05.042

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SN - 0304-3894

VL - 181

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JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

IS - 1-3

ER -

Synergistic effects of arbuscular mycorrhizal fungi and phosphate rock on heavy metal uptake and accumulation by an arsenic hyperaccumulator

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