College of Life Sciences, Nanjing Normal University, Nanjing, China.
Global Centre for Environmental Remediation (GCER), The University of Newcastle (UoN), Callaghan, Australia.
Crit Rev Biotechnol. 2020 Feb;40(1):31-45. doi: 10.1080/07388551.2019.1675582. Epub 2019 Oct 27.
Phytoremediation uses plants and associated microbes to remove pollutants from the environment and is considered a promising bioremediation method. Compared with well-described single contaminant treatments, the number of studies reporting phytoremediation of soil mixed pollutants has increased recently. Endophytes, including bacteria and fungi, exhibit beneficial traits for the promotion of plant growth, stress alleviation, and biodegradation. Moreover, endophytes either directly or indirectly assist host plants to survive high concentrations of organic and inorganic pollutants in the soil. Endophytic microorganisms can also regulate the plant metabolism in different ways, exhibiting a variety of physiological characteristics. This review summarizes the taxa and physiological properties of endophytic microorganisms that may participate in the detoxification of contaminant mixtures. Furthermore, potential biomolecules that may enhance endophyte mediated phytoremediation are discussed. The practical applications of pollutant-degrading endophytes and current strategies for applying this valuable bio-resource to soil phytoremediation are summarized.
植物修复利用植物和相关微生物从环境中去除污染物，被认为是一种很有前途的生物修复方法。与描述详尽的单一污染物处理相比，最近报道的土壤混合污染物植物修复的研究数量有所增加。内生菌包括细菌和真菌，具有促进植物生长、减轻压力和生物降解的有益特性。此外，内生菌直接或间接地帮助宿主植物在土壤中高浓度的有机和无机污染物中存活下来。内生微生物还可以通过不同的方式调节植物代谢，表现出多种生理特性。本综述总结了可能参与混合污染物解毒的内生微生物的分类和生理特性。此外，还讨论了可能增强内生菌介导的植物修复的潜在生物分子。总结了污染物降解内生菌的实际应用以及将这一宝贵生物资源应用于土壤植物修复的当前策略。
