硒与重金属互作的植物根际过程研究进展

doi:10.11924/j.issn.1000-6850.casb20200300166

中国农学通报 ›› 2021, Vol. 37 ›› Issue (1): 78-83.doi: 10.11924/j.issn.1000-6850.casb20200300166

所属专题：土壤重金属污染

• 资源·环境·生态·土壤·气象 • 上一篇下一篇

硒与重金属互作的植物根际过程研究进展

倪刚(), 胡承孝, 李长印, 蔡苗苗, 赵小虎()

华中农业大学资源与环境学院/微量元素研究中心/新型肥料湖北省工程实验室/土壤环境与污染修复湖北省重点实验室,武汉 430070

收稿日期:2020-03-04 修回日期:2020-06-23 出版日期:2021-01-05 发布日期:2020-12-25
通讯作者: 赵小虎
作者简介:倪刚,男,1996年出生,安徽安庆人,硕士研究生,研究方向：污染与修复生态。通信地址：430070 湖北省武汉市洪山区狮子山街1号华中农业大学,E-mail：nigangyx163@163.com。
基金资助:
中央高校基本科研业务费专项资金资助项目“硒调控下番茄类整合素蛋白AT14A对铬胁迫的响应”(2662018JC057);农业部农产品质量安全检测与评价重点实验室开放课题“土壤硒铬互作的生物化学机制”(NK201702);国家自然科学基金“农田土壤硒铬互作的生物效应及其影响机制”(41571321)

The Interaction of Selenium and Heavy Metals in Rhizosphere Soil: Research Progress

Ni Gang(), Hu Chengxiao, Li Changyin, Cai Miaomiao, Zhao Xiaohu()

College of Resources and Environment, Huazhong Agricultural University/ Research Center of Trace Elements/Hubei Provincial Engineering Laboratory for New-Type Fertilizer/Hubei Key Laboratory of Soil Environment and Pollution Remediation, Wuhan 430070

Received:2020-03-04 Revised:2020-06-23 Online:2021-01-05 Published:2020-12-25
Contact: Zhao Xiaohu

摘要/Abstract

摘要：

文章归纳了根际环境中硒与重金属的相互作用及其机理,明确了根际土壤中硒和重金属的主要形态及其影响因素。探讨了根际微环境对硒与重金属的影响,并详细叙述了硒与重金属元素的直接互作,以及通过根表铁膜、土壤固相、Eh、pH、根际微生物、根系分泌物等因素发生的间接互作。分析了根际微域中引起硒或重金属形态转化及其含量变化的土壤理化因子,并在此基础上,指出未来硒与土壤重金属互作的研究可向根际微环境深入,建议结合色谱、高通量测序等技术研究根系分泌物、根际微生物群落结构特征等在硒与重金属互作过程中的作用。同时指出,将硒与重金属互作研究成果应用于重金属污染农田土壤治理,既有助于拓展硒在农业生态环境中的应用领域,也为重金属污染农田的绿色修复提供新思路和新方法。

关键词: 硒, 重金属, 根际, 土壤, 农作物

Abstract:

The interaction and mechanism of selenium and heavy metals in the rhizosphere environment were summarized, the main forms and influencing factors of selenium and heavy metals in the rhizosphere were clarified, and the effects of the rhizosphere environment on the selenium and heavy metals were discussed. Direct interaction between selenium and heavy metals and indirect interaction between them through environmental factors such as iron plaque, soil solid phase, Eh, pH, rhizosphere microorganism, and root exudates were described in detail, and the physical and chemical factors of soil causing the change of morphological transformation and content of selenium and heavy metals in the rhizosphere were analyzed. On this basis, it is pointed out that the research on the interaction between selenium and heavy metals in soil should focus on the rhizosphere environment, and the role of root exudates and rhizosphere microbial community structure characteristics in the interaction between selenium and heavy metals should be studied by combining techniques such as chromatography and high-throughput sequencing. At the same time, it is suggested that applying the research results of the interaction between selenium and heavy metals to the heavy metals contaminated farmland will not only expand the application of selenium in the agricultural ecological environment but also provide new methods for the green restoration of heavy metal contaminated farmland.

Key words: selenium, heavy metals, rhizosphere, soil, crop

中图分类号:

倪刚, 胡承孝, 李长印, 蔡苗苗, 赵小虎. 硒与重金属互作的植物根际过程研究进展[J]. 中国农学通报, 2021, 37(1): 78-83.

Ni Gang, Hu Chengxiao, Li Changyin, Cai Miaomiao, Zhao Xiaohu. The Interaction of Selenium and Heavy Metals in Rhizosphere Soil: Research Progress[J]. Chinese Agricultural Science Bulletin, 2021, 37(1): 78-83.

图/表 1

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硒与重金属互作的植物根际过程研究进展

The Interaction of Selenium and Heavy Metals in Rhizosphere Soil: Research Progress

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