重金属污染对水稻土微生物及酶活性影响研究进展
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

S154.3

基金项目:

国家自然科学基金云南联合基金项目(U2002210)资助。


Effects of Heavy Metal Pollution on Microorganism and Enzyme Activity in Paddy Soil: A Review
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    水稻土受到重金属污染不仅影响水稻的产量品质,而且对水稻土微生物及酶活性的影响不容忽视。本文系统综述了水稻土重金属污染的来源,重金属污染对水稻土微生物生物量、种群数量、群落结构以及土壤酶活性的影响,并针对重金属污染对水稻土微生态效应研究的不足提出了未来应该研究的重点和方向,指出:①加强水稻-重金属-微生物三者相互作用、相互影响方面的研究;②在研究重金属污染与水稻土土壤微生物生态特征的关系的基础上,加强对重金属、土壤理化性状和水稻等因素进行综合并定量化分析,将是明确重金属对土壤微生物生态特性的影响及相关机理的关键;③应用分子生物学方法以及系统生物学方法,促进重金属污染胁迫下水稻土微生物活性及功能的演变规律及响应适应过程;④加强基于长期定位实验的研究,在较长的时间尺度和较大的空间尺度上认识水稻土生态系统在重金属胁迫下的演变规律和机制;⑤重金属污染对水稻土酶活性的研究应重点从机理方面入手,注重结合土壤酶的动力学参数和热力学参数,深化土壤酶与复合污染的作用机理,进一步揭示复合污染致毒途径及其机理,同时借助分子手段,探索重金属污染水稻土中更多未发现的酶的特性,寻找更加敏感、更能普遍推广的重金属污染土壤的综合性指标,以期为重金属污染水稻土的风险评价和生物修复提供科学依据。

    Abstract:

    Heavy metal pollution in paddy soil not only affects the yield and quality of rice, but also affects the microorganisms and enzyme activities in paddy soil. This paper systematically summarized the sources of heavy metal pollution in paddy soil, the effects of heavy metal pollution on the biomass, population quantity and community structure of microorganisms, and the activities of soil enzymes, and put forward the focus and direction of the future research in view of the research shortage on the microecological effects of heavy metal pollution on paddy soil which include:1) strengthen the research on the interaction and mutual influence of rice, heavy metals and microorganisms; 2) on the basis of studying the relationship between heavy metal pollution and soil microbial ecological characteristics of paddy soil, strengthening the comprehensive and quantitative analysis of heavy metals, soil physiochemical properties and rice and other factors will be key to clarify the effects of heavy metals on soil microbial ecological characteristics and related mechanisms; 3) Applying molecular biology and systems biology methods to promote the evolution and adaptation processes of microbial activity and function in paddy soil under heavy metal pollution stress; 4) Enhance the research based on long-term localization experiments to understand the evolution law and mechanism of paddy soil ecosystem under heavy metal stress on a longer time scale and a larger spatial scale; 5) The study on the effect of heavy metal pollution on the enzyme activity of paddy soil should focus on the mechanism and the combination of kinetic and thermodynamic parameters of soil enzymes in order to deepen the interaction mechanism between soil enzymes and compound pollution, and further reveal the toxic pathway and mechanism of compound pollution, meanwhile, with the aid of molecular techniques, explore the characteristics of more undiscovered enzymes in heavy metal polluted paddy soil, and find more sensitive and widely applicable comprehensive indexes of heavy metal polluted paddy soil in order to provide scientific basis for risk assessment and bioremediation of heavy metal polluted paddy soil.

    参考文献
    相似文献
    引证文献
引用本文

刘娟,张乃明,于泓,张靖宇,李芳艳,于畅,杜红蝶.重金属污染对水稻土微生物及酶活性影响研究进展[J].土壤,2021,53(6):1152-1159. LIU Juan, ZHANG Naiming, YU Hong, ZHANG Jingyu, LI Fangyan, YU Chang, DU Hongdie. Effects of Heavy Metal Pollution on Microorganism and Enzyme Activity in Paddy Soil: A Review[J]. Soils,2021,53(6):1152-1159

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2021-02-20
  • 最后修改日期:2021-04-15
  • 录用日期:2021-04-21
  • 在线发布日期: 2021-12-09
  • 出版日期: