IGSNRR OpenIR
Phytoexclusion of heavy metals using low heavy metal accumulating cultivars: A green technology
Wang, Liang1,2; Zhang, Qingying1,3; Liao, Xiaoyong1,2; Li, Xiaohua4; Zheng, Shunan4; Zhao, Fenghua1
2021-07-05
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
Volume413Pages:15
Corresponding AuthorLiao, Xiaoyong(Liaoxy@igsnrr.ac.cn)
AbstractHeavy metal (HM) pollution of farmland is a serious problem worldwide and consumption of HM-contaminated food products poses significant public health risks. Phytoexclusion using low HM accumulating cultivars (LACs) is a promising and practical technology to mitigate the risk of HM contamination of agricultural products grown in polluted soils, and does not alter cultivation practices, is easy to apply, and is economical. This review provides an overview of the major scientific advances accomplished in the field of LACs worldwide. The LACs concept and identification criteria are presented, and the known LACs among currently cultivated grain crops and vegetables are re-evaluated. The low HM accumulation by LACs is affected by crop ecophysiological features and soil physicochemical characteristics. Taking low Cd accumulating cultivars as an example, it is known that they can efficiently exclude Cd from entering their edible parts in three ways: 1) decrease in root Cd uptake by reducing organic acids secretion in the rhizosphere and transport protein production; 2) restriction of Cd translocation from roots to shoots via enhanced Cd retention in the cell wall and Cd sequestration in vacuoles; and 3) reduction in Cd translocation from shoots to grains by limiting Cd redirection and remobilization mediated through nodes. We propose an LAC application strategy focused on LACs and optimized to work with other agronomic measures according to the classification of HM risk level for LACs, providing a cost-effective and practical solution for safe utilization of large areas of farmland polluted with low to moderate levels of HMs.
KeywordFarmland Heavy metals Low HM accumulating cultivars Low accumulation mechanism Safe utilization
DOI10.1016/j.jhazmat.2021.125427
WOS KeywordORYZA-SATIVA L. ; LOW CADMIUM ACCUMULATION ; MARKER-ASSISTED SELECTION ; CONTAMINATED PADDY FIELD ; CD-ACCUMULATION ; RICE CULTIVARS ; ORGANIC-ACIDS ; WATER MANAGEMENT ; MULTIPLE METALS ; ROOT MORPHOLOGY
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFD0800900] ; Program of National Science and Technology Basic Works of the Ministry of Science and Technology of China[2015FY111300]
Funding OrganizationNational Key Research and Development Program of China ; Program of National Science and Technology Basic Works of the Ministry of Science and Technology of China
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000647589100003
PublisherELSEVIER
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/162654
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiao, Xiaoyong
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
2.Beijing Key Lab Environm Damage Assessment & Reme, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Minist Agr, Rural Energy & Environm Agcy, Beijing 100125, Peoples R China
Recommended Citation
GB/T 7714
Wang, Liang,Zhang, Qingying,Liao, Xiaoyong,et al. Phytoexclusion of heavy metals using low heavy metal accumulating cultivars: A green technology[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,413:15.
APA Wang, Liang,Zhang, Qingying,Liao, Xiaoyong,Li, Xiaohua,Zheng, Shunan,&Zhao, Fenghua.(2021).Phytoexclusion of heavy metals using low heavy metal accumulating cultivars: A green technology.JOURNAL OF HAZARDOUS MATERIALS,413,15.
MLA Wang, Liang,et al."Phytoexclusion of heavy metals using low heavy metal accumulating cultivars: A green technology".JOURNAL OF HAZARDOUS MATERIALS 413(2021):15.
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