内生菌提高植物抗旱性和耐盐性分子机制研究进展  

Research Progress on Molecular Mechanism of Endophytes Improving the Drought Resistance and Salt Tolerance of Plant

作　　者：宋雪 付楚涵 李家红 孙雪铜 韦银珠 肖汇川 李韦瑶 秦立刚[1] SONG Xue;FU Chu-han;LI Jia-hong;SUN Xue-tong;WEI Yin-zhu;XIAO Hui-chuan;LI Wei-yao;QIN Li-gang(College of Animal Science,Northeast Agricultural University,Harbin,Heilongliang Province 150030,China)

机构地区：[1]东北农业大学动物科学技术学院,黑龙江哈尔滨150030

出　　处：《草地学报》2024年第1期13-24,共12页Acta Agrestia Sinica

基　　金：国家自然科学基金(32271770);黑龙江省优秀青年基金(YQ2023C013)资助。

摘　　要：植物-内生菌共生体在缓解植物的非生物和生物胁迫方面发挥着重要作用。在干旱和盐胁迫下,内生菌可以通过调控植物光合作用、激素浓度、渗透调节物质含量、抗氧化酶活性以及相关基因表达等来保证植物正常生长和发育,从而增强植物抗逆性。近年来,植物促生菌(Plant growth promoting bacteria,PGPB)接种剂也被广泛研究应用。本文综述了植物内生菌的多样性、共生内生菌和PGPB在干旱和盐胁迫下对植物基因的调控,为内生菌提高植物耐旱性和耐盐性的分子机制的深入研究提供参考。Plant-endophyte symbioses play an important role in alleviating abiotic and biotic stresses to plants.Under drought and salt stresses,endophytic bacteria can enhance the resistance of plant to the stresses by regulating plant photosynthesis,concentration of hormones,content of osmoregulatory substances,activity of antioxidant enzyme,and expression of genes to ensure a normal growth and development of plant.In recent years,plant growth-promoting bacteria(PGPB)inoculants have also been widely studied and applied.In this paper,we reviewed the diversity of endophytic bacteria,the regulation of plant genes by plant symbiotic endophytes and PGPB under drought and salt stresses,and provided a reference for the in-depth study of the molecular mechanism of endophytic bacteria to improve the tolerance of plant to drought and salt stresses.

关 键 词：植物内生菌 干旱胁迫 盐碱胁迫 基因调控 PGPB 

分 类 号：Q945.78[生物学—植物学]