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| DOI: | 10.1016/j.apsoil.2014.09.007 |
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| Web URL(s): | http://www.sciencedirect.com/science/article/pii/S0929139314002637
Last checked: 12/04/2014
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Song, Ningning;
Ma, Yibing;
Zhao, Yujie;
Tang, Shirong |
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| Author Affiliation: | Song and Ma: National Soil Fertility and Fertilizer Effects Long-Term Monitoring Network/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing; Song, Zhao, and Tang: Centre for Research in Ecotoxicology and Environmental Remediation, Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin; Song: Qingdao Engineering Research Center for Rural Environment, Qingdao Agricultural University, Qingdao, PR China |
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| Title: | Elevated ambient carbon dioxide and Trichoderma inoculum could enhance cadmium uptake of Lolium perenne explained by changes of soil pH, cadmium availability and microbial biomass |
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| Source: | Applied Soil Ecology. Vol. 85, January 2015, p. 56-64. |
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| Publishing Information: | Amsterdam, The Netherlands: Elsevier Science |
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| # of Pages: | 9 |
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| Keywords: | TIC Keywords: Cadmium; Carbon dioxide; Growth factors; Lolium perenne; Microbial activity; Nutrient availability; Rhizosphere; Trichoderma; Inoculum
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| Abstract/Contents: | "Trichoderma inoculum may mediate plant growth and uptake of heavy metals, but the combined effects and the mechanisms of Trichoderma sp. and elevated ambient carbon dioxide (CO2) on the cadmium (Cd) availability and plant uptake are far less investigated. A pot experiment was conducted to investigate plant growth, Cd uptake, and chemical and microbial biomass characteristics of the rhizosphere of Lolium perenne grown on three Cd-contaminated soils under combined effects of elevated ambient CO2 and Trichoderma virens strain F7 inoculum. Rhizosphere soil samples were analyzed for pH, concentrations of available Cd measured by diffusive gradients in thin-films (DGT-Cd) and microbial biomass carbon and nitrogen. It was found that the elevated ambient CO2 and Trichoderma inoculation, in combination or alone, significantly promoted plant biomass and total Cd uptake by plants with decreased soil pH (by 0.08-0.32 units) and increased microbial biomass carbon (by 21.54-121.21%) and nitrogen (by 21.88-112.95%) in the rhizosphere. Also, the concentration of DGT-Cd in the rhizosphere under elevated ambient CO2 and Trichoderma inoculum treatments was increased by 15.45-152.48%, indicating that there was more available Cd for plant uptake under effects of elevated ambient CO2 and Trichoderma inoculum. Results suggested that the acidulated rhizosphere, enhanced microbial activities and increased Cd availability may have contributed to the efficiency of plants in Cd accumulation under effects of elevated ambient CO2 and Trichoderma inoculum." |
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| Language: | English |
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| References: | 67 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Song, N., Y. Ma, Y. Zhao, and S. Tang. 2015. Elevated ambient carbon dioxide and Trichoderma inoculum could enhance cadmium uptake of Lolium perenne explained by changes of soil pH, cadmium availability and microbial biomass. Applied Soil Ecology. 85:p. 56-64. |
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| DOI: 10.1016/j.apsoil.2014.09.007 |
| Web URL(s):
http://www.sciencedirect.com/science/article/pii/S0929139314002637
Last checked: 12/04/2014
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b4898681 |
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