| 植物对重金属迁移途径及其影响因素的研究进展 |
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| 引用本文： | 廖雨梦,李祖然,祖艳群,刘才鑫.植物对重金属迁移途径及其影响因素的研究进展[J].中国农学通报,2022,38(24):63-69. |
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| 作者姓名： | 廖雨梦 李祖然 祖艳群 刘才鑫 |
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| 作者单位： | 1.云南农业大学资源与环境学院,昆明 650201;2.云南农业大学园林园艺学院,昆明 650201 |
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| 基金项目： | 国家自然科学基金“超富集植物小花南芥Cd、Pb迁移和分布的质膜系统CAX和HMA酶学及分子机理”(41867055);云南省农业联合专项项目“兰坪铅锌矿区小流域农业土壤Cd/水耦合迁移特征及生态修复对策”(202101BD070001-047) |
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| 摘 要： | 土壤中重金属被植物吸收后,通过横向和纵向迁移到植物的不同部位中积累。横向迁移包括共质体和质外体的途径;纵向迁移包括木质部和韧皮部的途径。植物对Cd、Pb和Zn迁移的影响因素包括：屏障结构、转运和生理代谢物质及能量供应。通过重金属在植物体内的迁移特征的研究,为土壤重金属污染的植物修复和农业安全利用提供一定依据。
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| 关 键 词： | 重金属 横向迁移 木质部装载 纵向迁移 影响因素 |
| 收稿时间： | 2022-04-01 |
Migration Pathways of Heavy Metals in Plants and Influencing Factors: Research Progress |
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| LIAO Yumeng,LI Zuran,ZU Yanqun,LIU Caixin.Migration Pathways of Heavy Metals in Plants and Influencing Factors: Research Progress[J].Chinese Agricultural Science Bulletin,2022,38(24):63-69. |
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| Authors: | LIAO Yumeng LI Zuran ZU Yanqun LIU Caixin |
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| Institution: | 1.College of Resources and Environment, Yunnan Agricultural University, Kunming 650201;2.College of Horticulture and Landscape, Yunnan Agricultural University, Kunming 650201 |
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| Abstract: | After absorbed by plants, the heavy metals from soil will accumulate in different parts of the plant through lateral and vertical migration. The lateral migration includes the pathways of symplast and apoplast. The vertical migration includes the pathways of xylem and phloem. The factors affecting the migration of cadmium, lead and zinc in plants include barrier structure, transport, physiological metabolites and energy supply. The study of the migration characteristics of heavy metals in plants provides a certain basis for the phytoremediation of soil polluted by heavy metals and the safe utilization of agricultural soil. |
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| Keywords: | heavy metal lateral migration xylem loading vertical migration influencing factors |
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