300
C. Pandey et al.
Fig. 13.1 Effects of PGPR applications on plants
have been reported. Along with that PGPR (Microbacterium oxydans JYC17, Pseudomonas thivervalensis Y1-3-9, and Burkholderia cepacia J62) having metal resistance increased Cu uptake (maximum 113.38%) by Rape plant and improved copper
remediation capacity and also increased antioxidant content in leaves, the biomass
of remediation plant (Ren et al. 2019). Canbolat et al. (2006) reported a significant
effect of Bacillus M-13 and Bacillus RC01 on nitrogen fixation and phosphate solubilization and increased availability promotes the uptake of these nutrients by barley
(Hordeum vulgare). In another case, Maize plant grew on nutrient-deficient calcisol
soil when treated with the Pseudomonas alkaligenes PSA15, Bacillus polymyxa
BcP26, and Mycobacterium phlei MbP18, improved soil nutrients and uptake of the
nutrients (N, P, K), was observed. Bacterial inoculants have been observed as a better
plant growth promoter in nutrient-deficient soil (Egamberdiyeva 2007). Strains of
Pseudomonas fluorescens, Pseudomonas putida, and Pseudomonas fluorescens were
found effective to increase nutrient uptake and field in paddy (Lavakush et al. 2014).
Recently, Pandey et al. (2018a) reported that biopriming of amaranth seeds by the
selected Bacillus isolates exhibited a significant increase in all three macronutrients
(N: 36.18%, P: 32.45%, K: 17.11%) in soil. Authors also reported that the higher
solubilization and availability of these nutrients significantly increased the grain yield
in Amaranthus hypochondriacus.
C. Pandey et al.
Fig. 13.1 Effects of PGPR applications on plants
have been reported. Along with that PGPR (Microbacterium oxydans JYC17, Pseudomonas thivervalensis Y1-3-9, and Burkholderia cepacia J62) having metal resistance increased Cu uptake (maximum 113.38%) by Rape plant and improved copper
remediation capacity and also increased antioxidant content in leaves, the biomass
of remediation plant (Ren et al. 2019). Canbolat et al. (2006) reported a significant
effect of Bacillus M-13 and Bacillus RC01 on nitrogen fixation and phosphate solubilization and increased availability promotes the uptake of these nutrients by barley
(Hordeum vulgare). In another case, Maize plant grew on nutrient-deficient calcisol
soil when treated with the Pseudomonas alkaligenes PSA15, Bacillus polymyxa
BcP26, and Mycobacterium phlei MbP18, improved soil nutrients and uptake of the
nutrients (N, P, K), was observed. Bacterial inoculants have been observed as a better
plant growth promoter in nutrient-deficient soil (Egamberdiyeva 2007). Strains of
Pseudomonas fluorescens, Pseudomonas putida, and Pseudomonas fluorescens were
found effective to increase nutrient uptake and field in paddy (Lavakush et al. 2014).
Recently, Pandey et al. (2018a) reported that biopriming of amaranth seeds by the
selected Bacillus isolates exhibited a significant increase in all three macronutrients
(N: 36.18%, P: 32.45%, K: 17.11%) in soil. Authors also reported that the higher
solubilization and availability of these nutrients significantly increased the grain yield
in Amaranthus hypochondriacus.