TABLE 3.
Mitigation of drought stress through EPSs produced by PGPR.
| Soil microbe/Strain | Plant species | Effect under drought | References |
|
P. putida GAP-P45 |
Sunflower | Alleviation of drought stress and exopolysaccharide production | Sandhya et al., 2009 |
|
P. putida GAP-P45 |
Maize | Improve water holding capacity and exopolysaccharide production | Sandhya and Ali, 2015 |
|
Proteus penneri (Pp1), P. aeruginosa (Pa2), Alcaligenes faecalis (AF3) |
Maize | Improve EPS production, leaf area, and plant biomass | Naseem et al., 2018 |
|
Bacillus amyloliquefaciens HYD-B17, Bacillus licheniformis HYTAPB18, B. subtilis RMPB44 |
Arabidopsis | Enhanced EPS production under drought | Vardharajula and Ali Sk, 2014 |
|
Bacillus amyloliquefaciens FZB42 |
Arabidopsis | Exopolysaccharide production and induce systemic drought tolerance | Lu et al., 2018 |
|
B. methylotrophicus 5.18 |
Sunflower | Enhanced EPS production along with other drought tolerance traits | Namwongsa et al., 2019 |
|
P. chinense P1 B. cereus P2 |
Wheat | Improved production of EPS, enhanced plant growth, and drought tolerance | Khan and Bano, 2019 |
|
P. aeruginosa ZNP1 B. endophyticus J13 |
Arabidopsis | Exhibited increased EPS production under osmotic stress | Ghosh et al., 2019 |