Table 22.2
(continued)
PGPR
Associated crop
Media
a
PGP traits
b
MIC
c
/MBC/
MTC/MRL/
Highest
tolerance
Plant growth
promotion
study
performed on
(plant)
Mode of
study
Improvements in
crops after PGPR
inoculation
Reference
Pseudomonas
aeruginosa
MKRh3
Rhizosphere samples
of different plant
species
King’s B agar
IAA,
siderophore,
ACCD,
phosphate
(MIC-mM)
Cd-7
Vigna mungo
(Black gram)
Pot
experiment
• Significantly
developed rootshoot length,
root-shoot
weight, plant
growth, root
branching
• HM toxicity
decreased
• Cd accumulation lowered after
inoculation
Ganesan
(2008)
Bacillus subtilis
strain SJ-101
Composite samples
of rhizospheric soil
T-medium with
(HMs) 1.0 mM each
of Pb, Ni, Zn, Cr,
Co, Cu
IAA,
phosphate
(Maximum
tolerance
upto-mM)
Ni-3.4
Brassica
juncea
(Indian mustard plant)
Pot experiment in
open-field
condition
• Plant growth
promotion
increased
• Strain reduced
phytoxicity by
biosorption and
bioaccumulation
Zaidi
et al.
(2006),
Zaidi and
Musarrat
(2004)
Sinorhizobium
meliloti
strains
Alf12
Trifolium
subterraneum
cv. Nuba
(Sub clover), Lotus
corniculatus
(Birdsfoot trefoil),
Medicago sativa
(Alfalfa), Vicia
sativa
(Garden
vetch)
Yeast ExtractMannitol (YEM)
N
2
(MIC- ND)
Medicago
sativa
(Alfalfa)
Leonard jars
were used
for plant
growth in
growth
chamber
• Healthier plants
and N content
increased
• Symbiotic good
effect noticed in
contaminated soil
• Nodulation and
N
2
fixation similar to control
Carrasco
et al.
(2005)
S. meliloti
Alf
2L4
S. meliloti
Med4D
466
K. Pramanik et al.