AUTHOR=Zhang Dening , Xu Hongli , Gao Jingyao , Portieles Roxana , Du Lihua , Gao Xiangyou , Borroto Nordelo Carlos , Borrás-Hidalgo Orlando 

TITLE=Endophytic Bacillus altitudinis Strain Uses Different Novelty Molecular Pathways to Enhance Plant Growth

JOURNAL=Frontiers in Microbiology

VOLUME=12

YEAR=2021

URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2021.692313

DOI=10.3389/fmicb.2021.692313

ISSN=1664-302X

ABSTRACT=<p>The identification and use of endophytic bacteria capable of triggering plant growth is an important aim in sustainable agriculture. In nature, plants live in alliance with multiple plant growth-promoting endophytic microorganisms. In the current study, we isolated and identified a new endophytic bacterium from a wild plant species <italic>Glyceria chinensis</italic> (Keng). The bacterium was designated as a <italic>Bacillus altitudinis</italic> strain using 16S rDNA sequencing. The endophytic <italic>B. altitudinis</italic> had a notable influence on plant growth. The results of our assays revealed that the endophytic <italic>B. altitudinis</italic> raised the growth of different plant species. Remarkably, we found transcriptional changes in plants treated with the bacterium. Genes such as maturase K, tetratricopeptide repeat-like superfamily protein, LOB domain-containing protein, and BTB/POZ/TAZ domain-containing protein were highly expressed. In addition, we identified for the first time an induction in the endophytic bacterium of the major facilitator superfamily transporter and DNA gyrase subunit B genes during interaction with the plant. These new findings show that endophytic <italic>B. altitudinis</italic> could be used as a favourable candidate source to enhance plant growth in sustainable agriculture.</p>