文献类型：期刊文献

中文题名：菌—植体系强化重金属污染土壤植物修复研究进展——以桉树为例

英文题名：Research Progress in Enhancing Phytoremediation Efficiency of Heavy Metal Contaminated Soil by Mycorrhizae-plant Symbiotic Mechanisms:A Case of Eucalyptus

作者：郑嘉琪[1] 欧阳林男[1] 陈少雄[1] 何沙娥[1] 杨嘉麒[1] 杨雪芮[1]

第一作者：郑嘉琪

机构：[1]中国林业科学研究院速生树木研究所,广东湛江524300

年份：2023

卷号：36

期号：1

起止页码：33-38

中文期刊名：世界林业研究

外文期刊名：World Forestry Research

收录：北大核心:【北大核心2020】；CSCD:【CSCD2023_2024】；

基金：中央级公益性科研院所基本科研业务费专项资金“赤桉-耐性菌种对重金属污染土壤的联合修复”(CAFYBB2020MB008)。

语种：中文

中文关键词：桉树;重金属;土壤污染;菌—植体系;植物修复

外文关键词：Eucalyptus;heavy metal;soil contamination;mycorrhizae-plant symbiotic mechanism;phytoremediation

分类号：S714.7;S792.39;X53

摘要：随着重金属污染日趋严重,桉树作为耐性和适应性较强的木本树种,在修复重金属污染方面具有较大潜力。文中综述了国内外菌—植体系强化重金属污染土壤植物修复的研究报道。菌—植体系与桉树可以形成能促进植物生长发育及提高抵抗外界胁迫能力的共生系统,具有固定与去除土壤重金属的2种功能,能通过改善根际环境和改变土壤重金属形态,增强桉树适应性和抗逆性,从而增强桉树吸收、转运和富集重金属的能力。建立菌—植体系,可以发挥有机载体、桉树与益生菌种三者的功能优势,提高对重金属污染土壤的修复效果。在此基础上,提出了未来研究的重点,即仍需从基因分子层面对桉树应对重金属胁迫的具体信号传导和响应机制以及菌—植体系各部分间的互作机制进行深入研究。
With the increasingly serious heavy metal pollution,Eucalyptus as a tolerant and adaptable tree species,has great potential in heavy metal remediation.In this paper,the research on the enhancement of heavy metal-contaminated soil phytoremediation by mycorrhizae-plant symbiotic mechanisms is reviewed and summarized.The mycorrhizae-plant system and Eucalyptus can form symbiotic mechanisms to promote the growth of plants and help plants resist external stress,which have the 2 functions of soil heavy metal fixation and removal.The mycorrhizae-plant symbiotic mechanisms can enhance the adaptability and stress resistance of Eucalyptus by improving rhizosphere environment and changing soil heavy metal morphology,and thus enhance the ability of Eucalyptus to absorb,transport and enrich heavy metals.Establishing mycorrhizae-plant symbiotic mechanisms can give play to the functional advantages of organic carriers,Eucalyptus and probiotics,and improve the remediation effect of heavy metal contaminated soil.However,it is still necessary to further study the specific signal transduction and response mechanism of Eucalyptus to heavy metal stress as well as the interaction mechanism between different parts of mycorrhizae-plant symbiotic mechanisms at the gene and molecular level.