Abstract:

There are a large number of symbiotic and associated microorganisms in roots,stems,leaves,seeds and other organs of rice,which play an important role in plant growth,yield,quality and resistance,among which endophyte is a representative group of seed symbiosis and associated microorganisms. Endophytic communities with rich species and complex structure are common in rice seeds,which will directly or indirectly affect seed germination,growth and population yield characteristics. To provide a reference for the follow-up study of endophytic bacteria in rice seeds,this study reviewed the current studies on endophytic bacteria in rice seeds from four aspects：The diversity of endophytic bacteria in rice seeds,the correlation between rice seeds and the distribution of endophytic bacteria,the biological function of endophytic bacteria in rice seeds,and the vertical transmission of endophytic bacteria in rice seeds. On this basis,this paper discussed and prospected the research on endophytic bacteria in hybrid rice seeds,that is the deficiency of the research on endophytic bacteria in rice seeds,aiming to trigger readers’ thinking.

Key words: endophytic bacteria, rice seed, diversity, biological function, vertical transmission, hybrid rice