内生菌对植物次生代谢产物的生物合成影响和抗逆功能研究  

Effects of Endophytes on Biosynthesis of Secondary Metabolites and Stress Tolerance in Plants

作　　者：梁振霆 唐婷 LIANG Zhen-ting;TANG Ting(College of Life Science,Hunan University of Science and Technology,Xiangtan 411201;Key Laboratory of Ecological Remediation and Safe Utilization of Heavy Metal-Polluted Soils,Hunan University of Science and Technology,Xiangtan 411201)

机构地区：[1]湖南科技大学生命科学学院,湘潭411201 [2]湖南科技大学重金属污染土壤生态修复与安全利用实验室,湘潭411201

出　　处：《生物技术通报》2021年第8期35-45,共11页Biotechnology Bulletin

基　　金：湖南省自然科学基金(2020JJ4293);湖南省教育厅科学研究项目(18B215)。

摘　　要：植物次生代谢产物具有广阔的药理活性与重要的生物功能,但天然产量低,无法满足人们日益增长的医药需求,其生物合成研究备受关注。内生菌与植物长期互利共生,影响植物众多代谢过程和生理活动,是解决次生代谢产物资源短缺的重要来源。综述了内生菌促进植物萜类,黄酮类和生物碱等次生代谢产物的生物合成,以及内生菌通过调控次生代谢物以增强植物对生物和非生物胁迫的抗性,讨论了内生菌关联植物次生代谢物在现代生物领域的生产途径和应用前景,以期为利用微生物资源为药用次生代谢产物的生物合成研究和农作物抗逆性状改良提供新思路。Plant secondary metabolites have broad pharmacological activities and various biological functions.Biosynthesis of secondary metabolites has attracted much attention due to its low natural yield in plants and increasing demand of medicine.The plant and endophytes are long-tern mutual beneficial and symbiotic,and affects many metabolic processes and physiological activities of plants,which provides important source to solve the shortage of secondary metabolites.Here this paper reviews the biosynthesis of secondary metabolites,such as terpenoids,flavonoids and alkaloids,promoted by endophytes,as well as the regulation of secondary metabolites by endophytes to enhance plant resistance to biotic and abiotic stresses.The paper also discusses the production path and application prospect of endophytic associated plant secondary metabolites in modern biological field,aiming at providing ideal microbial resources for the biosynthesis of medicinal secondary metabolites and the improvement of crop stress tolerance.

关 键 词：内生菌 次生代谢产物 生物合成 生物防御 非生物胁迫 

分 类 号：Q946[生物学—植物学]