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
Bacillus
sp. PSB10 Brassica campestris
(Mustard),
Lycopersicon
esculentum
(Tomato)
Nutrient agar
Phosphate,
siderophore,
IAA, HCN,
ammonia
(MIC-μg/mL)
Cr-550
Cicer
arietinum
(Chickpea)
Open
field
experiment
in pot
• Improved rootshoot length,
nodule numbers,
nodule dry
weight, total dry
weight
• Enhanced seed
yield, grain protein
• Chromium
uptake decreased
Wani and
Khan
(2010),
Wani
et al.
(2007)
Bradyrhizobium
sp. 750
Lupinus
(Yellow
Lupin)
D.M.A.C. (Uppsala,
Sweden)
NM
ND
(MTC-mM)
As-2
Cd-<0.5
Cu -1.5
Pb-2
Zn-<1
L. luteus
In situ
field
experiment
• Zn accumulation higher than
other HMs in
roots, shoots
• Strain
750 increased
biomass,
fixed
nitrogen in soil
• All strains
improved biomass
• Reduced metal
accumulation in
root shoot
Dary et al.
(2010),
Rodrı´
guezLlorente
et al.
(2010),
ZurdoPineiro
et al.
(2007)
Pseudomonas
sp. Az13
Rhizospheric region
of legume plant
NM
MTC-mM
As-4
Cd-1
Cu-4.5
Pb-5
Zn-3
Ochrobactrum
cytisi
Azn6.2
Medicago
polymorpha
Nodules
(Alfaalfa)
Tryptone yeast
(TY) extract
medium
MTC-mM
As-8
Cd-1.5
Cu-3.5
Pb-6
Zn-10
464
K. Pramanik et al.