氢氧化细菌分离、筛选及促生机制研究进展

Research Progress on Isolation,Screening and Plant Growth-promoting Mechanism of Hydrogen-oxidizing Bacteria

氢氧化细菌是一类以氢作为电子供体,通过氧化H2获得能量并同化CO2的无机化能自养菌。近年来,发现作为豆科作物根际主要生理类群的氢氧化细菌促生作用明显,因而受到各国学者的广泛关注。氢氧化细菌在农业、环境保护和人类健康等领域有巨大的应用潜力。目前,由于人们对氢氧化细菌的分类、分离和筛选技术的认识不足,严重影响了氢氧化细菌的研究进程和水平。概述氢氧化细菌的分离及筛选方法,并着重论述了氢氧化细菌促生作用及促生机理的最新研究进展,最后探讨其应用前景。随着研究的深入,氢氧化细菌将受到各国学者的广泛关注。

Aerobic hydrogen-oxidizing bacteria can utilize H2 as electron donor and O2 as electron acceptor to fix CO2.Recently,it has been found that hydrogen-oxidizing bacteria,which are the main physiological groups in rhizosphere of leguminous crops,can promote the growth of plants obviously.Nowadays,great attention has been payed to this kind of bacteria.Hydrogen-oxidizing bacteria have great potential in agriculture,environment and human health.But it＇s not very clear about the classification,isolation and identification of hydrogen-oxidizing bacteria,and it has seriously affected the process of researches.This article presents an overview on the isolation,screening of hydrogen-oxidizing bacteria,focuses on plant growth-promoting mechanism and some other prospects of their applications.As the further study,more and more researchers all over the world will pay more attention to this kind of bacteria.