TABLE 7.

Improvement in phytohormone/enzyme production by PGPR under drought stress.

Soil microbe/Strain	Plant species	Effect under drought	References
Bacillus megaterium XTBG34	Arabidopsis	Production of VOC (pentyl furan) and promoting of plant growth	Zou et al., 2010
P. fluorescens SS101		Production of VOCs 13-tetradecadien-1-01, 2-methy-n-1-tridecene, and 2-butanone	Park et al., 2015
B. subtilis SYST2	Tomato	Decrease ethylene level, increase auxin, gibberellin, and cytokinin	Tahir et al., 2017
Microbacterium sp. EC8	Arabidopsis and tomato	Increased root and shoot biomass	Cordovez et al., 2018