Burkholderia sp.
RX232
Salix caprea
(Goat
willow)
Tryptic soy agar
with ZnSO
4
(2 mmol l
–1
)
Siderophore,
ACCD
(MIC-mmol/
L)
Cd-4
Zn-16
S. caprea
Greenhouse
Pot
experiment
• Helped in root
growth
• Significant
reduction of HMs
in roots
Kuffner
et al.
(2010)
Rhizobium
sp. RP5 Pisum sativum
(Pea
plant)
Yeast extract mannitol (YEM) with
NiCl
2 (0–350
μg.
ml
À1
) & ZnCl
2 (0–
1500
μg.ml
À1
)
N
2 , IAA,
siderophore
(Tolerance-μ
g/mL)
Ni-350
Zn-1500
P.sativum
Pot
experiment
• Increased dry
matter, nodule
numbers, rootshoot N,
leghemoglobin,
seed yield, grain
protein
• Reduced HMs
toxicity in plant
organ
Wani
et al.
(2008a)
Rhizobium
species
RL9
Lens esculenta
(Lentil)
Yeast extract mannitol medium
Siderophore,
IAA
(Up to-μg/
mL)
concentration
of Zn-400
L. esculenta
Pot
experiment
• Enhanced dry
weight, nodule
numbers, nodule
dry mass, growth,
seed yield respect
to uninoculated
plants
• Improved
leghaemogloblin
content, grain
protein greater
than uninoculated
sets
• Metal reduction
noticed in plant
tissue
Wani
et al.
(2008b)
(continued)
22 Beneficial Role of Plant Growth-Promoting Rhizobacteria in Bioremediation of. . .
465