Microorganisms,
Год журнала:
2023,
Номер
11(3), С. 783 - 783
Опубликована: Март 18, 2023
Soil
microorganisms
play
an
important
role
in
maintaining
natural
ecological
balance
through
active
participation
carbon,
nitrogen,
sulfur,
and
phosphorous
cycles.
Phosphate-solubilizing
bacteria
(PSB)
are
of
high
importance
the
rhizosphere,
enhancing
solubilization
inorganic
phosphorus
complexes
into
soluble
forms
available
for
plant
nutrition.
The
investigation
this
species
is
major
interest
agriculture,
as
they
can
be
used
biofertilizers
crops.
In
present
study,
28
isolates
PSB
were
obtained
after
phosphate
enrichment
soil
samples
from
five
Tunisian
regions.
Five
identified
by
16S
rRNA
gene
sequencing
including
Pseudomonas
fluorescens,
P.
putida,
taiwanensis,
Stenotrophomonas
maltophilia,
Pantoea
agglomerans.
Solid
liquid
Pikovskaya's
(PVK)
National
Botanical
Research
Institute's
(NBRIP)
media
containing
insoluble
tricalcium
evaluation
ability
bacterial
two
methods:
visual
zone
around
colonies
(halo)
determination
solubilized
phosphates
medium
colorimetric
method
vanado-molybdate
yellow.
Based
on
results
halo
method,
isolate
each
that
showed
higher
index
was
selected
method.
media,
ranging
535.70
to
618.57
µg
mL-1
NBRIP
medium,
374.20
544.28
PVK
with
highest
values
produced
fluorescens.
best
reduction
broth
pH,
which
indicates
organic
acid
production,
achieved
most
PSB.
Strong
correlations
observed
between
average
capability
solubilize
both
pH
total
content
soil.
production
hormone
indole
acetic
(IAA),
promote
growth,
all
species.
Among
them,
fluorescens
forest
northern
Tunisia
IAA
(50.4
±
0.9
mL-1).
Plants,
Год журнала:
2023,
Номер
12(15), С. 2861 - 2861
Опубликована: Авг. 3, 2023
Phosphorus
(P),
an
essential
macronutrient,
plays
a
pivotal
role
in
the
growth
and
development
of
plants.
However,
limited
availability
phosphorus
soil
presents
significant
challenges
for
crop
productivity,
especially
when
plants
are
subjected
to
abiotic
stresses
such
as
drought,
salinity
extreme
temperatures.
Unraveling
intricate
mechanisms
through
which
participates
physiological
responses
is
ensure
sustainability
agricultural
production
systems.
This
review
aims
analyze
influence
supply
on
various
aspects
plant
under
hostile
environmental
conditions,
with
special
emphasis
stomatal
operation.
Furthermore,
we
discuss
recently
discovered
genes
associated
P-dependent
stress
regulation
evaluate
feasibility
implementing
P-based
practices
mitigate
adverse
effects
stress.
Our
objective
provide
molecular
insights
into
P
regulating
plants'
tolerance
stresses,
underscoring
significance
efficient
use
strategies
sustainability.
The
potential
benefits
limitations
future
research
directions
also
discussed.
Applied Sciences,
Год журнала:
2022,
Номер
12(3), С. 1198 - 1198
Опубликована: Янв. 24, 2022
The
present
paper
reviews
the
most
recent
advances
regarding
effects
of
chemical
and
organic
fertilizers
on
soil
microbial
communities.
Based
results
from
articles
considered,
some
details
are
presented
how
use
various
types
affects
composition
activity
Soil
microbes
have
different
responses
to
fertilization
based
differences
in
total
carbon
(C),
nitrogen
(N)
phosphorus
(P)
contents
soil,
along
with
moisture
presence
plant
species.
These
show
that
changes
abundance
populations
stimulates
their
growth
thanks
nutrient
supply
added.
Overall,
however,
data
revealed
no
significant
influence
richness
diversity
bacteria
fungi.
Instead,
individual
bacterial
or
fungal
species
was
sensitive
mainly
attributed
properties
induced
by
fertilization.
Among
negative
fertilization,
decrease
enzymatic
has
been
highlighted
several
papers,
especially
soils
received
largest
amounts
together
losses
matter.
Frontiers in Plant Science,
Год журнала:
2020,
Номер
11
Опубликована: Фев. 26, 2020
Zinc
oxide
nanoparticles
(ZnO-NPs)
hold
promise
as
novel
fertilizer
nutrients
for
crops.
However,
their
ultra-small
size
could
hinder
large-scale
field
application
due
to
potential
drift,
untimely
dissolution
or
aggregation.
In
this
study,
urea
was
coated
with
ZnO-NPs
(1%)
bulk
ZnO
(2%)
and
evaluated
in
wheat
(Triticum
aestivum
L.)
a
greenhouse,
under
drought
(40%
moisture
capacity;
FMC)
non-drought
(80%
conditions,
comparison
not
(control),
separate
ZnO-NP
amendment.
Plants
were
exposed
≤
2.17
mg/kg
4.34
bulk-ZnO,
indicating
exposure
higher
rate
of
Zn
from
the
ZnO.
bulk-ZnO
showed
similar
coating
efficiencies
74-75%.
Drought
significantly
(p
0.05)
increased
time
panicle
initiation,
reduced
grain
yield,
inhibited
uptake
Zn,
nitrogen
(N),
phosphorus
(P).
Under
drought,
average
initiation
by
5
days,
irrespective
coating,
relative
control.
contrast,
did
affect
initiation.
Compared
control,
yield
significantly,
51
39%,
ZnO-NP-coated
uncoated
urea.
Yield
increases
bulk-ZnO-coated
insignificant,
compared
both
control
treatments.
Plant
24
8%
ZnO-NPs;
78
10%
bulk-ZnO.
treatment
reduce
time,
except
Relative
(irrespective
coating)
yield;
enhanced
significantly.
fertilization
N
P
uptake,
regardless
particle
coating.
Collectively,
these
findings
demonstrate
that
enhances
plant
performance
accumulation,
thus
potentiating
field-scale
deployment
nano-scale
micronutrients.
Notably,
lower
inputs
crop
productivity,
comparable
This
highlights
key
benefit
nanofertilizers:
reduction
nutrient
into
agriculture
without
penalities.
Frontiers in Plant Science,
Год журнала:
2021,
Номер
12
Опубликована: Окт. 28, 2021
The
importance
of
phosphorus
in
the
regulation
plant
growth
function
is
well
studied.
However,
role
inorganic
phosphate
(Pi)
molecule
mitigation
abiotic
stresses
such
as
drought,
salinity,
heavy
metal,
heat,
and
acid
are
poorly
understood.
We
revisited
peer-reviewed
articles
on
characteristics
that
(P)-dependently
regulated
under
sufficient-P
low/no-P
starvation
alone
or
either
combined
with
one
mentioned
stress.
found
photosynthesis
rate
stomatal
conductance
decreased
Pi-starved
conditions.
total
chlorophyll
contents
were
increased
P-deficient
plants,
owing
to
lack
Pi
molecules
sustain
functioning,
particularly,
Rubisco
fructose-1,6-bisphosphatase
function.
dry
biomass
shoots,
roots,
P
concentrations
significantly
reduced
marketable
effects
cereal
than
legumes.
To
mitigate
stress,
plants
activate
alternative
regulatory
pathways,
Pi-dependent
glycolysis,
mitochondrial
respiration
cytoplasm.
Plants
grown
well-Pi
supplementation
drought
stress
exhibited
higher
shoots
no-P
treated
ones.
supply
metals
metal
leaves
for
cadmium
(Cd)
lead
(Pb),
but
could
not
prevent
them
from
absorbing
soils.
detoxify
enhance
catalase
ascorbate
peroxidase
activity
prevents
lipid
peroxidation
leaves.
HvPIP
PHO1
genes
over-expressed
both
plus
salinity
combination,
implying
their
key
roles
mediate
mitigations.
Agronomy
Pi-based
interventions
increase
at
on-farm
levels
discussed.
Revisiting
its
better
management
agricultural
lands
where
supplemented
fertilizer
help
survive
stresses.
Agriculture,
Год журнала:
2023,
Номер
13(2), С. 462 - 462
Опубликована: Фев. 15, 2023
Phosphorus
(P)
is
one
of
the
essential
macronutrients
for
plant
growth,
being
a
highly
required
resource
to
improve
productive
performance
several
crops,
especially
in
weathered
soils.
However,
large
part
nutrients
applied
form
fertilizers
becomes
“inert”
medium
term
and
cannot
be
assimilated
by
plants.
Rationalizing
use
phosphorus
matter
extreme
importance
environmental
sustainability
socioeconomic
development.
Therefore,
alternatives
management
this
nutrient
are
needed,
P-solubilizing
microorganisms
an
option
optimize
its
allowing
exploration
less
available
fractions
soils
reducing
demand
phosphate
fertilizers.
The
objective
study
discuss
how
can
intermediate
sustainable
agriculture.
In
review
study,
we
present
studies
about
role
as
mobilizers
soil.
We
describe
plants
main
problems
related
unsustainable
exploitation
natural
reserves
chemical
Mainly
highlight
constitute
fundamental
release
inert
portion
nutrient,
where
mechanisms
solubilization
mineralization.
also
discussed
benefits
that
inoculation
provides
crops
well
practices
using
them
bioinoculants.
inoculants
viable
future
agriculture,
mainly
because
application
significantly
reduce
P
and,
consequently,
reserves.
addition,
new
research
must
conducted
development
technologies,
prospecting
biological
products,
improvement
allow
higher
efficiency
