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
Enterobacter
aerogenes
K6
Oryza sativa
(Rice)
Davis
Mingioli
(DM) medium with
1000
μg/mL Cd
Phosphate,
IAA,
siderophore,
N
2 , ACCD,
HCN,
ammonia
(High degree
of resistanceμg/mL)
Cd-4000
Pb-3800
As-1500
O. sativa
In vitro
PGP
experiment,
In vivo
root
colonisation
study
• Revealed
growth promotion
of rice seedling
under Cd stress
• Reducing oxidative stress
(through antioxidants), stress ethylene by
combined outcome of Cd resistance and PGP
activities
• 100% seed germination
• Improved root
length, shoot
length, root
weight, shoot
weight
• Strain K6
increased Chl-a,
Chl-b and total
chlorophyll content
• In seedling tissues Cd uptake
reduced
Pramanik
et al.
(2018a)
458
K. Pramanik et al.
(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
Enterobacter
aerogenes
K6
Oryza sativa
(Rice)
Davis
Mingioli
(DM) medium with
1000
μg/mL Cd
Phosphate,
IAA,
siderophore,
N
2 , ACCD,
HCN,
ammonia
(High degree
of resistanceμg/mL)
Cd-4000
Pb-3800
As-1500
O. sativa
In vitro
PGP
experiment,
In vivo
root
colonisation
study
• Revealed
growth promotion
of rice seedling
under Cd stress
• Reducing oxidative stress
(through antioxidants), stress ethylene by
combined outcome of Cd resistance and PGP
activities
• 100% seed germination
• Improved root
length, shoot
length, root
weight, shoot
weight
• Strain K6
increased Chl-a,
Chl-b and total
chlorophyll content
• In seedling tissues Cd uptake
reduced
Pramanik
et al.
(2018a)
458
K. Pramanik et al.