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Endophytic colonization of entomopathogenic fungi increases plant disease resistance by changing the endophytic bacterial community

Authors :
Xinyao Xia
Sui Li
Lu Yang
Zhengkun Zhang
Chang Yuming
Le Li
Wende Liu
Li Qiyun
Qin Kang
Source :
Journal of basic microbiologyREFERENCES. 61(12)
Publication Year :
2021

Abstract

Various mechanisms are involved in plant disease resistance mediated by entomopathogenic fungi; however, the role of plant endophytic microbes in disease resistance is unknown. In the present study, we showed that the disease incidence of northern corn leaf blight caused by Exserohilum turcicum (Et) on maize was reduced significantly by soil inoculation with Beauveria bassiana (Bb). Meanwhile, B. bassiana colonization and E. turcicum infection increased the diversity and abundance and diversity of endophytic bacteria and fungi, respectively, while the abundance of endophytic bacterial of the Bb + Et treatment decreased significantly compared with that of Et treatment alone. However, Bb + Et treatment increased the relative abundance of plant beneficial bacteria significantly, for example, Burkholderia and Pseudomonas. Network analyses showed that the microbiome complexity increased after soil inoculation with B. bassiana. Taken together, these results revealed the potential mechanism by which entomopathogenic fungi exert biological control of maize leaf spot disease.

Details

ISSN :
15214028
Volume :
61
Issue :
12
Database :
OpenAIRE
Journal :
Journal of basic microbiologyREFERENCES
Accession number :
edsair.doi.dedup.....42eee9eb4046742b040cd4ea9eb95f75