Mitigation of Cd accumulation in paddy rice (Oryza sativa L.) by Fe fertilization
Cadmium uptake in rice is believed to be mediated by the Fe transport system. Phyto-available Cd can be changed by Fe fertilization of substrates. This work investigated whether and how Fe fertilization affects mitigation of Cd accumulation in paddy rice. A 90-d soil column experiment was conducted...
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Veröffentlicht in: | Environmental pollution (1987) 2017-12, Vol.231 (Pt 1), p.549-559 |
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creator | Chen, Zhe Tang, Ye-Tao Yao, Ai-Jun Cao, Jian Wu, Zhuo-Hao Peng, Zhe-Ran Wang, Shi-Zhong Xiao, Shi Baker, Alan J.M. Qiu, Rong-Liang |
description | Cadmium uptake in rice is believed to be mediated by the Fe transport system. Phyto-available Cd can be changed by Fe fertilization of substrates. This work investigated whether and how Fe fertilization affects mitigation of Cd accumulation in paddy rice. A 90-d soil column experiment was conducted to study the change of Cd and Fe availability in soil after Fe fertilization (ionic and chelated Fe). A low-Cd accumulating cultivar (TY116) and a high-Cd accumulating cultivar (JY841) were grown in two Cd-polluted paddy soils amended with chelated Fe fertilizers. Additionally, both cultivars were grown in hydroponics to compare Fe-related gene expression in EDDHAFe-deficient and EDDHAFe-sufficient roots.
The column experiment showed that EDTANa2Fe(II) and EDDHAFe(III) fertilization had a better mitigation effect on soil Cd availability compared to FeSO4·7H2O. Moreover, the field experiment demonstrated that these two chelated fertilizations could reduce Cd concentrations in brown rice by up to 80%. Iron concentrations in the brown rice were elevated by Fe chelates. Compared to EDDHAFe(III), EDTANa2Fe(II) fertilization had a stronger mitigation effect by generating more EDTANa2Cd(II) in the soil solution to decrease phyto-available Cd in the soil. While EDDHAFe(III) fertilization could increase soil pH and decrease soil Eh which contributed to decreasing phyto-available Cd in a contaminated soil. In the hydroponic experiment, Fe sufficiency significantly reduced Cd concentrations in above-ground organs. In some cases, the expression of OsIRT1, OsNRAMP1 and OsNRAMP5 was inhibited under Fe sufficiency relative to Fe deficiency conditions. These results suggest that mitigation of rice Cd by Fe chelate fertilization results from a decrease in available Cd in substrates and the inhibition of the expression of several Fe-related genes in the IRT and NRAMP families.
[Display omitted]
•EDTANa2Fe(II) mitigated brown rice Cd by generating EDTANa2Cd(II) in soil solution to decrease the soil phyto-available Cd.•EDDHAFe(III) reduced brown rice Cd by increasing soil pH and decreasing soil Eh, so reducing the soil phyto-available Cd.•Fe fertilization can reduce paddy rice Cd by increasing solution Fe2+ to inhibit the related Fe transport genes expression. |
doi_str_mv | 10.1016/j.envpol.2017.08.055 |
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The column experiment showed that EDTANa2Fe(II) and EDDHAFe(III) fertilization had a better mitigation effect on soil Cd availability compared to FeSO4·7H2O. Moreover, the field experiment demonstrated that these two chelated fertilizations could reduce Cd concentrations in brown rice by up to 80%. Iron concentrations in the brown rice were elevated by Fe chelates. Compared to EDDHAFe(III), EDTANa2Fe(II) fertilization had a stronger mitigation effect by generating more EDTANa2Cd(II) in the soil solution to decrease phyto-available Cd in the soil. While EDDHAFe(III) fertilization could increase soil pH and decrease soil Eh which contributed to decreasing phyto-available Cd in a contaminated soil. In the hydroponic experiment, Fe sufficiency significantly reduced Cd concentrations in above-ground organs. In some cases, the expression of OsIRT1, OsNRAMP1 and OsNRAMP5 was inhibited under Fe sufficiency relative to Fe deficiency conditions. These results suggest that mitigation of rice Cd by Fe chelate fertilization results from a decrease in available Cd in substrates and the inhibition of the expression of several Fe-related genes in the IRT and NRAMP families.
[Display omitted]
•EDTANa2Fe(II) mitigated brown rice Cd by generating EDTANa2Cd(II) in soil solution to decrease the soil phyto-available Cd.•EDDHAFe(III) reduced brown rice Cd by increasing soil pH and decreasing soil Eh, so reducing the soil phyto-available Cd.•Fe fertilization can reduce paddy rice Cd by increasing solution Fe2+ to inhibit the related Fe transport genes expression.</description><identifier>ISSN: 0269-7491</identifier><identifier>EISSN: 1873-6424</identifier><identifier>DOI: 10.1016/j.envpol.2017.08.055</identifier><identifier>PMID: 28843203</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Cadmium ; Cadmium - analysis ; EDDHAFe(III) ; Environmental Monitoring ; Environmental Pollution ; Environmental Restoration and Remediation - methods ; Fe fertilization ; Fe-related genes ; Fertilizers ; Hydroponics ; Iron - analysis ; Iron - chemistry ; Oryza - metabolism ; Plant Roots - metabolism ; Rice ; Soil ; Soil Pollutants - analysis ; Soil pollution</subject><ispartof>Environmental pollution (1987), 2017-12, Vol.231 (Pt 1), p.549-559</ispartof><rights>2017 Elsevier Ltd</rights><rights>Copyright © 2017 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c362t-d72fd55055ba4e6d1d6e9ea4895a3ca34b3a92b30370174dc0f4197f991fcea33</citedby><cites>FETCH-LOGICAL-c362t-d72fd55055ba4e6d1d6e9ea4895a3ca34b3a92b30370174dc0f4197f991fcea33</cites><orcidid>0000-0002-9765-0119 ; 0000-0001-6288-2377</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.envpol.2017.08.055$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/28843203$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chen, Zhe</creatorcontrib><creatorcontrib>Tang, Ye-Tao</creatorcontrib><creatorcontrib>Yao, Ai-Jun</creatorcontrib><creatorcontrib>Cao, Jian</creatorcontrib><creatorcontrib>Wu, Zhuo-Hao</creatorcontrib><creatorcontrib>Peng, Zhe-Ran</creatorcontrib><creatorcontrib>Wang, Shi-Zhong</creatorcontrib><creatorcontrib>Xiao, Shi</creatorcontrib><creatorcontrib>Baker, Alan J.M.</creatorcontrib><creatorcontrib>Qiu, Rong-Liang</creatorcontrib><title>Mitigation of Cd accumulation in paddy rice (Oryza sativa L.) by Fe fertilization</title><title>Environmental pollution (1987)</title><addtitle>Environ Pollut</addtitle><description>Cadmium uptake in rice is believed to be mediated by the Fe transport system. Phyto-available Cd can be changed by Fe fertilization of substrates. This work investigated whether and how Fe fertilization affects mitigation of Cd accumulation in paddy rice. A 90-d soil column experiment was conducted to study the change of Cd and Fe availability in soil after Fe fertilization (ionic and chelated Fe). A low-Cd accumulating cultivar (TY116) and a high-Cd accumulating cultivar (JY841) were grown in two Cd-polluted paddy soils amended with chelated Fe fertilizers. Additionally, both cultivars were grown in hydroponics to compare Fe-related gene expression in EDDHAFe-deficient and EDDHAFe-sufficient roots.
The column experiment showed that EDTANa2Fe(II) and EDDHAFe(III) fertilization had a better mitigation effect on soil Cd availability compared to FeSO4·7H2O. Moreover, the field experiment demonstrated that these two chelated fertilizations could reduce Cd concentrations in brown rice by up to 80%. Iron concentrations in the brown rice were elevated by Fe chelates. Compared to EDDHAFe(III), EDTANa2Fe(II) fertilization had a stronger mitigation effect by generating more EDTANa2Cd(II) in the soil solution to decrease phyto-available Cd in the soil. While EDDHAFe(III) fertilization could increase soil pH and decrease soil Eh which contributed to decreasing phyto-available Cd in a contaminated soil. In the hydroponic experiment, Fe sufficiency significantly reduced Cd concentrations in above-ground organs. In some cases, the expression of OsIRT1, OsNRAMP1 and OsNRAMP5 was inhibited under Fe sufficiency relative to Fe deficiency conditions. These results suggest that mitigation of rice Cd by Fe chelate fertilization results from a decrease in available Cd in substrates and the inhibition of the expression of several Fe-related genes in the IRT and NRAMP families.
[Display omitted]
•EDTANa2Fe(II) mitigated brown rice Cd by generating EDTANa2Cd(II) in soil solution to decrease the soil phyto-available Cd.•EDDHAFe(III) reduced brown rice Cd by increasing soil pH and decreasing soil Eh, so reducing the soil phyto-available Cd.•Fe fertilization can reduce paddy rice Cd by increasing solution Fe2+ to inhibit the related Fe transport genes expression.</description><subject>Cadmium</subject><subject>Cadmium - analysis</subject><subject>EDDHAFe(III)</subject><subject>Environmental Monitoring</subject><subject>Environmental Pollution</subject><subject>Environmental Restoration and Remediation - methods</subject><subject>Fe fertilization</subject><subject>Fe-related genes</subject><subject>Fertilizers</subject><subject>Hydroponics</subject><subject>Iron - analysis</subject><subject>Iron - chemistry</subject><subject>Oryza - metabolism</subject><subject>Plant Roots - metabolism</subject><subject>Rice</subject><subject>Soil</subject><subject>Soil Pollutants - analysis</subject><subject>Soil pollution</subject><issn>0269-7491</issn><issn>1873-6424</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9UMtKw0AUHUSxtfoHIrOsi8R55TEbQYpVoVIEXQ-TmRuZkiZ1Jim0X29qqktXF-49554HQteUxJTQ9G4VQ73dNFXMCM1iksckSU7QmOYZj1LBxCkaE5bKKBOSjtBFCCtCiOCcn6MRy3PBGeFj9PbqWvepW9fUuCnxzGJtTLfuqmHlarzR1u6wdwbwdOl3e41Df9tqvIhvcbHDc8Al-NZVbv_DuURnpa4CXB3nBH3MH99nz9Fi-fQye1hEhqesjWzGSpskvelCC0gttSlI0CKXieZGc1FwLVnBCc_6fMIaUgoqs1JKWhrQnE_QdPi78c1XB6FVaxcMVJWuoemCopKzXKQ8JT1UDFDjmxA8lGrj3Vr7naJEHcpUKzWUqQ5lKpKr3ldPuzkqdMUa7B_pt70ecD8AoM-5deBVMA5qA9Z5MK2yjftf4RuY4obO</recordid><startdate>201712</startdate><enddate>201712</enddate><creator>Chen, Zhe</creator><creator>Tang, Ye-Tao</creator><creator>Yao, Ai-Jun</creator><creator>Cao, Jian</creator><creator>Wu, Zhuo-Hao</creator><creator>Peng, Zhe-Ran</creator><creator>Wang, Shi-Zhong</creator><creator>Xiao, Shi</creator><creator>Baker, Alan J.M.</creator><creator>Qiu, Rong-Liang</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-9765-0119</orcidid><orcidid>https://orcid.org/0000-0001-6288-2377</orcidid></search><sort><creationdate>201712</creationdate><title>Mitigation of Cd accumulation in paddy rice (Oryza sativa L.) by Fe fertilization</title><author>Chen, Zhe ; Tang, Ye-Tao ; Yao, Ai-Jun ; Cao, Jian ; Wu, Zhuo-Hao ; Peng, Zhe-Ran ; Wang, Shi-Zhong ; Xiao, Shi ; Baker, Alan J.M. ; Qiu, Rong-Liang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c362t-d72fd55055ba4e6d1d6e9ea4895a3ca34b3a92b30370174dc0f4197f991fcea33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Cadmium</topic><topic>Cadmium - analysis</topic><topic>EDDHAFe(III)</topic><topic>Environmental Monitoring</topic><topic>Environmental Pollution</topic><topic>Environmental Restoration and Remediation - methods</topic><topic>Fe fertilization</topic><topic>Fe-related genes</topic><topic>Fertilizers</topic><topic>Hydroponics</topic><topic>Iron - analysis</topic><topic>Iron - chemistry</topic><topic>Oryza - metabolism</topic><topic>Plant Roots - metabolism</topic><topic>Rice</topic><topic>Soil</topic><topic>Soil Pollutants - analysis</topic><topic>Soil pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Zhe</creatorcontrib><creatorcontrib>Tang, Ye-Tao</creatorcontrib><creatorcontrib>Yao, Ai-Jun</creatorcontrib><creatorcontrib>Cao, Jian</creatorcontrib><creatorcontrib>Wu, Zhuo-Hao</creatorcontrib><creatorcontrib>Peng, Zhe-Ran</creatorcontrib><creatorcontrib>Wang, Shi-Zhong</creatorcontrib><creatorcontrib>Xiao, Shi</creatorcontrib><creatorcontrib>Baker, Alan J.M.</creatorcontrib><creatorcontrib>Qiu, Rong-Liang</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Environmental pollution (1987)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Zhe</au><au>Tang, Ye-Tao</au><au>Yao, Ai-Jun</au><au>Cao, Jian</au><au>Wu, Zhuo-Hao</au><au>Peng, Zhe-Ran</au><au>Wang, Shi-Zhong</au><au>Xiao, Shi</au><au>Baker, Alan J.M.</au><au>Qiu, Rong-Liang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mitigation of Cd accumulation in paddy rice (Oryza sativa L.) by Fe fertilization</atitle><jtitle>Environmental pollution (1987)</jtitle><addtitle>Environ Pollut</addtitle><date>2017-12</date><risdate>2017</risdate><volume>231</volume><issue>Pt 1</issue><spage>549</spage><epage>559</epage><pages>549-559</pages><issn>0269-7491</issn><eissn>1873-6424</eissn><abstract>Cadmium uptake in rice is believed to be mediated by the Fe transport system. Phyto-available Cd can be changed by Fe fertilization of substrates. This work investigated whether and how Fe fertilization affects mitigation of Cd accumulation in paddy rice. A 90-d soil column experiment was conducted to study the change of Cd and Fe availability in soil after Fe fertilization (ionic and chelated Fe). A low-Cd accumulating cultivar (TY116) and a high-Cd accumulating cultivar (JY841) were grown in two Cd-polluted paddy soils amended with chelated Fe fertilizers. Additionally, both cultivars were grown in hydroponics to compare Fe-related gene expression in EDDHAFe-deficient and EDDHAFe-sufficient roots.
The column experiment showed that EDTANa2Fe(II) and EDDHAFe(III) fertilization had a better mitigation effect on soil Cd availability compared to FeSO4·7H2O. Moreover, the field experiment demonstrated that these two chelated fertilizations could reduce Cd concentrations in brown rice by up to 80%. Iron concentrations in the brown rice were elevated by Fe chelates. Compared to EDDHAFe(III), EDTANa2Fe(II) fertilization had a stronger mitigation effect by generating more EDTANa2Cd(II) in the soil solution to decrease phyto-available Cd in the soil. While EDDHAFe(III) fertilization could increase soil pH and decrease soil Eh which contributed to decreasing phyto-available Cd in a contaminated soil. In the hydroponic experiment, Fe sufficiency significantly reduced Cd concentrations in above-ground organs. In some cases, the expression of OsIRT1, OsNRAMP1 and OsNRAMP5 was inhibited under Fe sufficiency relative to Fe deficiency conditions. These results suggest that mitigation of rice Cd by Fe chelate fertilization results from a decrease in available Cd in substrates and the inhibition of the expression of several Fe-related genes in the IRT and NRAMP families.
[Display omitted]
•EDTANa2Fe(II) mitigated brown rice Cd by generating EDTANa2Cd(II) in soil solution to decrease the soil phyto-available Cd.•EDDHAFe(III) reduced brown rice Cd by increasing soil pH and decreasing soil Eh, so reducing the soil phyto-available Cd.•Fe fertilization can reduce paddy rice Cd by increasing solution Fe2+ to inhibit the related Fe transport genes expression.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>28843203</pmid><doi>10.1016/j.envpol.2017.08.055</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0002-9765-0119</orcidid><orcidid>https://orcid.org/0000-0001-6288-2377</orcidid></addata></record> |
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subjects | Cadmium Cadmium - analysis EDDHAFe(III) Environmental Monitoring Environmental Pollution Environmental Restoration and Remediation - methods Fe fertilization Fe-related genes Fertilizers Hydroponics Iron - analysis Iron - chemistry Oryza - metabolism Plant Roots - metabolism Rice Soil Soil Pollutants - analysis Soil pollution |
title | Mitigation of Cd accumulation in paddy rice (Oryza sativa L.) by Fe fertilization |
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