Table 4.
EPS-producing bacteria demonstrating metal tolerance.
| Microbial Strain | Metals | Plants | Roles of EPS | References |
|---|---|---|---|---|
| Cynobacterium synechocystis PCC6803 | Cadmium, Cobalt | - | Tolerance to stresses triggered by NaCl, CdSO4, CoCl2, or Fe starvation | [117] |
| Pseudomonas sp. W6 | Lead | - | Bio-adsorption of lead | [118] |
| A. calcoaceticus BS-27 P. polymyxa FB-50 P. putida BS-19 P. fluorescens FB-49 | Iron, Manganese, lead, Zinc, Copper | Acacia | Increase root and shoot length, dry biomass, and metal tolerance | [119] |
| Bacillus gibsonii PM11 Bacillus xiamenensis PM14 | Iron, Manganese, Cadmium, Zinc, Copper, Chromium | Flax (Linum usitatissimum L.) | Enhance plant growth and nutrient availability by minimizing metalinduced stress Enhance phytoextraction of multimetals | [116] |
| Bacillus anthracis PM21 | Cadmium, Chromium | Sesbania sesban | Enhance seed germination, root and shoot length and photosynthetic pigment | [121] |
| Cellulosimicrobium funkei KM032184 | Chromium | Phaseolus vulgaris L | Root Elongation, Shoot elongation, Antioxidant, | [115] |
| Halomonas species | Arsenic | Avicennia marina | Arsenic bioadsprtion, in vitro Na+ ion sequestration and antioxidant activity | [120] |