Proceedings of the Voronezh State University of Engineering Technologies,
Год журнала:
2024,
Номер
85(4), С. 86 - 90
Опубликована: Янв. 15, 2024
The
results
of
the
selection
new
plant
growth-promoting
bacteria
resistant
to
herbicides
different
chemical
structure
are
presented.
Two
methods
were
used
for
screening:
sowing
on
microbiological
media
from
freshly
sampled
soil
and
obtaining
enrichment
cultures
samples
exposed
a
month
at
temperature
28
°C.
Inoculation
was
carried
out
selective
nutrient
containing
Octapon
extra
(2,5
g/l),
Florax
Dicamba
(1
Nanomet
Spetsnaz
g/l)
or
Chistalan
g/l).
These
commonly
control
weeds
in
wheat
crops.
isolated
microorganisms
belong
genus
Pseudomonas,
fix
nitrogen,
mobilize
phosphates,
synthesize
phytohormones
antimicrobial
compounds.
They
also
can
mitigate
pesticide
stress
An
anti-stress
biological
product
them
has
been
developed
tentatively
named
"AGROBIOLOG".
For
its
production,
optimal
composition
medium
conditions
industrial
submerged
cultivation
reactors
various
volumes
determined.
In
laboratory
fermenter
FA10
with
volume
10
liters
after
72
hours
°C,
stirrer
speed
200
rpm,
aeration
0.5
air
per
1
min
medium,
amount
viable
cells
billion
CFU/ml
culture
liquid.
Cultivation
1000
under
same
allowed
achieve
titer
6.0
Plants,
Год журнала:
2024,
Номер
13(3), С. 346 - 346
Опубликована: Янв. 24, 2024
More
food
is
needed
to
meet
the
demand
of
global
population,
which
growing
continuously.
Chemical
fertilizers
have
been
used
for
a
long
time
increase
crop
yields,
and
may
negative
effect
on
human
health
agricultural
environment.
In
order
make
ongoing
development
more
sustainable,
use
chemical
will
likely
be
reduced.
Microbial
fertilizer
kind
nutrient-rich
environmentally
friendly
biological
made
from
plant
growth-promoting
bacteria
(PGPR).
can
regulate
soil
nutrient
dynamics
promote
cycling
by
improving
microbial
community
changes.
This
process
helps
restore
ecosystem,
in
turn
promotes
uptake,
regulates
growth,
enhances
resistance
biotic
abiotic
stresses.
paper
reviews
classification
their
function
regulating
nitrogen
fixation,
phosphorus,
potassium
solubilization,
production
phytohormones.
We
also
summarize
role
PGPR
helping
crops
against
Finally,
we
discuss
mechanism
applying
remediation.
review
us
understand
research
progress
provides
new
perspectives
regarding
future
agent
sustainable
agriculture.
Journal of Xenobiotics,
Год журнала:
2024,
Номер
14(1), С. 79 - 95
Опубликована: Янв. 2, 2024
Metsulfuron-methyl,
a
widely
used
herbicide,
could
cause
damage
to
the
sensitive
plants
in
crop-rotation
systems
at
extremely
low
levels
soil.
The
potential
of
plant
growth-promoting
bacteria
(PGPB)
for
enhancing
resistance
against
herbicide
stress
has
been
discovered
recently.
Therefore,
it
is
poorly
understood
how
physiological
processes
occur
plants,
while
PGPB
reduce
phytotoxicity
herbicides
agricultural
crops.
In
greenhouse
studies,
effect
strains
Pseudomonas
protegens
DA1.2
and
chlororaphis
4CH
on
oxidative
damage,
acetolactate
synthase
(ALS),
enzymatic
non-enzymatic
antioxidants
canola
(Brassica
napus
L.),
wheat
(Triticum
aestivum
L.)
were
investigated
under
two
(0.05
0.25
mg∙kg-1)
metsulfuron-methyl
using
spectrophotometric
assays.
inoculation
herbicide-exposed
with
significantly
increased
shoots
fresh
weight
(24-28%),
amount
glutathione
GSH
(60-73%),
flavonoids
(5-14%),
as
well
activity
ascorbate
peroxidase
(129-140%),
superoxide
dismutase
SOD
(35-49%),
ALS
(50-57%).
Bacterial
treatment
stimulated
(37-94%),
(65-73%),
reductase
(19-20%),
accumulation
(61-261%),
(17-22%),
(27-33%)
canola.
Simultaneous
prevented
lipid
peroxidation
induced
by
plants.
Based
findings,
possible
that
protective
role
bacterial
metsulfuron-metil
linked
antioxidant
system
activation.
Plant
growth-promoting
rhizobacteria
(PGPR)
can
be
utilized
to
enhance
plant
growth
and
production.
The
use
of
efficient
PGPR
is
one
the
effective
ways
improve
Triticum
aestivum
(wheat)
nutrition.
exploration
native
rhizobacterial
strains
as
biofertilizers
with
suitable
carriers
in
immobilized
form
an
alternative
way
prevent
soil
ecosystem
pollution.
In
order
evaluate
potential
multiple
attributes,
numerous
experiments
were
conducted
on
isolated
strains.
impact
auxin-producing
(APRS)
various
parameters
wheat
was
examined
through
laboratory
field
experiments.
This
study
aimed
investigate
(isolated
from
crop
types)
encourage
by
immobilization
alginate
beads.
PGPR,
obtained
different
rhizospheric
soils,
identified
based
their
colony
morphology
biochemical
characteristics.
addition,
they
evaluated
for
ability
produce
indole-3-acetic
acid
(IAA),
hydrogen
cyanide
(HCN),
ammonia
(NH3),
siderophores.
16S
rRNA-based
identification
revealed
that
showed
homology
genera,
including
Bacillus,
Brevundimonas,
Exiguobacterium
spp.
Selected
(PGP)
attributes
hydrolytic
enzyme-producing
abilities.
Most
had
multifaceted
attributes.
Growth
potential,
assessed
under
natural
environments,
confirmed
efficacy
bacterial
beads
biofertilizers.
Encapsulation
a
70–80%
improvement
seed
germination
60–70%
enhancement
root
shoot
length
than
control.
results
selected
strain
used
Screening
application
encapsulation
better
option
promote
production
yield
wheat.
FEMS Microbiology Ecology,
Год журнала:
2023,
Номер
99(11)
Опубликована: Сен. 23, 2023
The
Moroccan
endemic
Vachellia
gummifera
grows
wild
under
extreme
desert
conditions.
This
plant
could
be
used
as
an
alternative
fodder
for
goats,
and
camels,
in
order
to
protect
the
Argan
forests
against
overgrazing
Central
Southwestern
semiarid
areas.
With
aim
improve
V.
population's
density
areas,
we
proposed
its
inoculation
with
performing
growth-promoting
bacteria.
Hence,
500
bacteria
were
isolated
from
rhizosphere.
From
these,
291
isolates
retained
(PGP)
activities
assessment.
A
total
of
44
showed
best
phosphates
solubilization
potential,
well
siderophore
auxin
production.
combination
REP-PCR
(repetitive
extragenic
palindromic-polymerase
chain
reaction)
fingerprinting,
PGP
activities,
phenotypic
properties,
allowed
selection
three
strains
experiments.
selected
strains'
16S
rRNA
sequencing
that
they
are
members
Enterobacter
Pseudomonas
genera.
had
diverse
effects
on
growth
parameters.
All
single
combined
inoculations
improved
shoot
weight
by
more
than
200%,
root
length
up
139%,
while
some
combinations
further
protein
chlorophyll
content,
thereby
improving
plant's
forage
value.
constitute
effective
inoculum
use
arid
zones
southern
Morocco.
Toxics,
Год журнала:
2024,
Номер
12(12), С. 886 - 886
Опубликована: Дек. 5, 2024
The
ability
of
some
rhizosphere
bacteria
to
mitigate
herbicidal
stress
in
cultivated
plants
may
be
useful
agriculture
and
bioremediation.
There
is
poor
understanding
how
directly
or
through
herbicide
degradation
affect
the
biochemical
processes
exposed
sulfonylurea
herbicides.
In
this
study,
treatment
with
a
combination
metsulfuron-methyl
(MSM)
(Pseudomonas
protegens
DA1.2
P.
chlororaphis
4CH)
wheat
(Triticum
aestivum
L.)
canola
(Brassica
napus
was
carried
out.
Activity
glutathione-S-transferase
(GST),
an
important
enzyme
for
detoxification,
acetolactate
synthase
(ALS),
target
MSM
plants,
measured
by
spectrophotometric
assays.
residues
were
analyzed
using
HPLC-MS.
Then,
24
h
after
bacterial
treatment,
GST
activity
increased
75–91%
38–94%
canola.
On
30th
day,
decrease
soil
associated
54.6–79.7%.
An
increase
acceleration
accompanied
inhibition
ALS
which
indicated
mitigation
toxic
effect.
results
obtained
are
evidence
that
rhizospheric
can
have
beneficial
effects
on
due
abilities
detoxification
enzymes
degrade
soil.
