eISSN 1738-8872
pISSN 1017-7825

Table. 2.

Table. 2.

EPS-producing microbial strains in drought tolerance.

Microorganisms Crops Functions References
Rhizobium sp. strain YAS34 Sunflower Increase RAS/RT ratio, dry biomass, and nitrogen uptake [24]
Pseudomonas mendocina Lactuca sativa L Increase in aggregate stability, water soluble, and total carbohydrates [50]
Proteus penneri
Pseudomonas aeruginosa
Alcaligenes faccalis
Maize Improve soil moisture content, leaf area, root length, shoot length, and plant biomass [56]
Bacillus sp. (B. amyloliquefaciens, B. licheniformis, B. thuringiensis, B. subtilis, Paenibacillus favisporus) Maize Increase plant biomass, relative water content, water potential of leaf, RAS/RT ratio, and aggregate stability [11]
Rhizobium leguminosarum
Mesorhizobium ciceri
Rizobium phaseoli
Wheat Improve growth, biomass, and drought tolerance index [58]
Rhizobium strain KYGT207 Wheat Improve soil aggregation [48]
Bacillus sp.
(B. licheniformis, B. megaterium, B. pumilus)
Soybean Plant growth promotion [70]
Klebsiella sp. IG3 Wheat Improve soil aggregation, root adhering soil, and water potential around the roots [75]
P. aeruginosa PM389
P. aeruginosa ZNP1
B.endophyticus J13
B. tequilensis J12
Increase phytohormones/EPS Enhance fresh weight, dry weight, and plant water content [68]
Pseudomonas chlororaphis O6 Arabidopsi s thaliana Reduce stomatal opening and wilting [72]
B. amyloliquefaciens 54 Tomato Increase survival rate, relative water content, and root vigor Decrease concentration of malondialdehyde Increase antioxidant enzyme activities Increase levels of stress-responsive genes (lea, tdi65, and ltpg2) [96]
B. amyloliquefaciens FZB42 A. thaliana Increase survival rate, fresh and dry shoot weights, and primary root length Increase expression levels of drought defense-related marker genes, such as RD29A, RD17, ERD1, and LEA14 Increase proline production and activities of superoxide dismutase and peroxidase [66]
Pseudomonas fluorescens DR7
P. fluorescens DR11
Pseudomonas migulae DR35
Enterobacter hormaechei DR16
Foxtail millet Increase the RAS/RT Improve seed germination [71]
P. fluorescens FAP2
B. licheniformis B642
Wheat Enhance vegetative growth
Enhance photosynthesis, chlorophyll content, transpiration rate (E), internal CO2 concentration (Ci), stomatal conductance (gs), net photosynthetic rate (PN), and leaf water potential (LWP) as compared to uninoculated control

J. Microbiol. Biotechnol. 2021;31:1045~1059
© J. Microbiol. Biotechnol.