bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 18, 2024
Abstract
Drought
stress
has
a
significant
impact
on
agricultural
productivity,
affecting
key
crops
such
as
soybeans,
the
second
most
widely
cultivated
crop
in
United
States.
We
conducted
endophytic
and
rhizospheric
microbial
diversity
analyses
soybean
plants
during
2023
growing
season,
amid
extreme
weather
conditions
of
prolonged
high
temperatures
drought
Louisiana.
Specifically,
we
collected
surviving
non-surviving
from
two
plots
Louisiana
field
severely
damaged
heat
condition
2023.
did
not
observe
any
difference
rhizosphere
between
plants.
However,
found
obvious
differences
structure
community
root
tissues
plant
conditions.
Especially,
bacterial
genera
Proteobacteria,
Pseudomonas
Pantoea
,
were
predominant
tissues,
while
genus
Streptomyces
was
conspicuously
dominant
(dead)
tissues.
Co-occurrence
patterns
network
centrality
enabled
us
to
discern
intricate
characteristics
operational
taxonomic
units
(OTUs)
within
networks.
Overall,
this
study
advances
our
understanding
relationship
bacteria
under
stress,
paving
way
for
future
research
investigate
importance
affected
regions
Frontiers in Microbiology,
Journal Year:
2023,
Volume and Issue:
14
Published: Feb. 16, 2023
Over
the
years,
synthetic
pesticides
like
herbicides,
algicides,
miticides,
bactericides,
fumigants,
termiticides,
repellents,
insecticides,
molluscicides,
nematicides,
and
pheromones
have
been
used
to
improve
crop
yield.
When
are
used,
over-application
excess
discharge
into
water
bodies
during
rainfall
often
lead
death
of
fish
other
aquatic
life.
Even
when
fishes
still
live,
their
consumption
by
humans
may
biomagnification
chemicals
in
body
system
can
cause
deadly
diseases,
such
as
cancer,
kidney
diabetes,
liver
dysfunction,
eczema,
neurological
destruction,
cardiovascular
so
on.
Equally,
harm
soil
texture,
microbes,
animals,
plants.
The
dangers
associated
with
use
necessitated
need
for
alternative
organic
(biopesticides),
which
cheaper,
environment
friendly,
sustainable.
Biopesticides
be
sourced
from
microbes
(e.g.,
metabolites),
plants
exudates,
essential
oil,
extracts
bark,
root,
leaves),
nanoparticles
biological
origin
silver
gold
nanoparticles).
Unlike
pesticides,
microbial
specific
action,
easily
without
expensive
chemicals,
environmentally
sustainable
residual
effects.
Phytopesticides
myriad
phytochemical
compounds
that
make
them
exhibit
various
mechanisms
likewise,
they
not
release
greenhouse
gases
lesser
risks
human
health
compared
available
pesticides.
Nanobiopesticides
higher
pesticidal
activity,
targeted
or
controlled
top-notch
biocompatibility
biodegradability.
In
this
review,
we
examined
different
types
merits,
demerits
biopesticides,
but
more
importantly,
x-rayed
appropriate
approaches
acceptability
commercial
usage
phytopesticides,
nanobiopesticides
plant
nutrition,
protection/yield,
animal/human
promotion,
possible
incorporation
integrated
pest
management
system.
Plant Stress,
Journal Year:
2023,
Volume and Issue:
11, P. 100341 - 100341
Published: Dec. 28, 2023
Through
a
variety
of
mechanisms,
including
increasing
the
amount
readily
available
mineral
nutrients,
regulating
phytohormone
levels,
and
biocontrol
phytopathogens,
plant
growth-promoting
rhizobacteria
(PGPR)
associated
with
rhizosphere
either
directly
or
indirectly
stimulates
growth
development.
The
establishment,
survival,
persistence
PGPR
inoculants
are
widely
acknowledged
to
be
contingent
upon
these
two
parameters,
in
addition
intricate
network
interactions
within
rhizosphere.
In
general,
soil
is
moist
environment
significant
amounts
carbon
that
have
been
degraded
harbors
large
population
microbes.
rhizo-microbiome
crucial
agriculture
because
wide
root
exudates
cell
debris
attract
unique
distinct
patterns
microbial
colonization.
plays
role
manufacture
regulation
extracellular
molecules,
hormones,
secondary
metabolites,
antibiotics,
various
signaling
chemicals.
Additionally,
composition
influences
texture
enhancement.
Research
has
shown
can
used
treat
plants
inoculate
promote
alters
physiology
entire
plant,
which
enhances
nutrient
uptake
affects
effectiveness
activity.
specific
biochemical
processes
involved
this
phenomenon
often
not
well
understood.
Nevertheless,
new
studies
shed
light
on
mechanisms
via
by
induce
responses,
both
at
local
systemic
levels.
Insufficient
information
regarding
impact
mechanism
molecules
metabolic
pathways
characteristics.
Consequently,
review
will
concentrate
elucidating
identifying
essential
exert
influence
root-microbe
interactions.
Sustainability,
Journal Year:
2023,
Volume and Issue:
15(2), P. 1427 - 1427
Published: Jan. 11, 2023
Drought
stress
provokes
plants
to
change
their
growth
pattern
and
biochemical
contents
overcome
adverse
situations.
Soybean
was
grown
under
40
(drought)
80%
(control)
of
field
capacity
(FC)
determine
the
morpho-physiological
alterations
that
occur
drought
conditions.
The
experiment
conducted
following
a
randomized
complete
block
design
with
three
replications.
results
showed
exerted
detrimental
effects
on
photosynthetic
attributes,
leaf
production,
pigment
water
content,
plant
growth,
dry
matter
production
soybean.
However,
favored
producing
higher
amount
proline
malondialdehyde
in
soybean
than
control.
pod
seed
grain
size,
yield
were
also
adversely
affected
by
drought,
where
genotypic
variations
conspicuous.
Interestingly,
studied
parameters
AGS383
minimally
drought.
This
genotype
capable
maintaining
healthier
root
shoot
greater
area,
preserving
greenness
cell
membrane
stability,
photosynthesis,
absorbing
sustaining
potential,
lower
heavier
grains
make
it
out
yielder
both
Considering
changes
morpho-physiological,
biochemical,
contributing
parameters,
could
be
cultivated
as
relatively
drought-tolerant,
high-yielding
variety.
Further
study
is
needed
uncover
genes
responsible
for
adaptation
drought-stress
environments,
this
might
used
parent
material
breeding
program
develop
high-yielding,
drought-tolerant
PeerJ,
Journal Year:
2024,
Volume and Issue:
12, P. e16761 - e16761
Published: Jan. 9, 2024
Background
As
one
of
the
main
pathogens
causing
tea
anthracnose
disease,
Colletotrichum
gloeosporioides
has
brought
immeasurable
impact
on
sustainable
development
agriculture.
Given
adverse
effects
chemical
pesticides
to
environment
and
human
health,
biological
control
been
a
focus
research
this
pathogen.
Bacillus
altitudinis
GS-16,
which
was
isolated
from
healthy
leaves,
had
exhibited
strong
antagonistic
activity
against
disease.
Methods
The
antifungal
mechanism
endophytic
bacterium
GS-16
C.
1-F
determined
by
dual-culture
assays,
pot
experiments,
cell
membrane
permeability,
cellular
contents,
metabolism,
activities
key
defense
enzymes.
Results
We
investigated
possible
strain
inhibiting
1-F.
In
vitro
,
assays
revealed
that
significant
(92.03%)
broad-spectrum
in
all
tested
plant
pathogens.
disease
index
decreased
6.12
after
treatment
with
indicating
good
biocontrol
effect
(89.06%).
When
PE
extract
treated
mycelial
1-F,
appeared
deformities,
distortions,
swelling
SEM
observations.
Besides
that,
compared
negative
control,
contents
nucleic
acids,
protein,
total
soluble
sugar
group
were
increased
significantly,
could
cause
damage
integrity
also
found
obviously
destroyed
metabolism
normal
synthesis
contents.
Additionally,
induced
resistance
increasing
enzymes
PPO,
SOD,
CAT,
PAL,
POD.
Conclusions
concluded
permeability
integrity,
destroy
induce
resistance,
contributed
its
activity.
These
findings
indicated
be
used
as
an
efficient
microorganism
for
caused
.
Ecologies,
Journal Year:
2024,
Volume and Issue:
5(3), P. 375 - 401
Published: July 27, 2024
The
extreme
conditions
linked
with
abiotic
stresses
have
greatly
affected
soil
and
plant
health.
diverse
biochemical
activities
occurring
in
the
environment
been
attributed
to
shaping
dynamics
of
plant–soil
microbiomes
by
contributing
microbial
lifestyles
enhancing
functional
properties
boost
tolerance
abiotic-induced
stresses.
Soil
play
crucial
roles
nutrition
stress
management
through
mechanisms.
With
current
insights
into
use
engineered
microbes
as
single
or
combined
inoculants,
their
has
contributed
fitness
stability
under
different
environmental
activating
defense
mechanisms,
enzyme
production
(lowering
free
radicals
resulting
oxidative
stress),
protein
regulation,
growth
factors.
detection
certain
genes
involved
factors
can
underline
functions
mitigating
stress.
Hence,
projections
for
sustainable
eco-friendly
agriculture
possible
exploration
beneficial
rhizosphere
manage
effect
on
remain
critical
points
discussion
recently,
prospects
ensuring
food
security.
Therefore,
this
review
focuses
impacts
mitigation
nutrition.
Horticulturae,
Journal Year:
2024,
Volume and Issue:
10(4), P. 357 - 357
Published: April 4, 2024
Bacillus
strain
PE1,
which
was
isolated
from
potatoes
harvested
in
the
Yaqui
Valley,
Mexico,
evaluated
as
a
potential
biological
control
agent
against
Fusarium
languescens.
The
draft
genome
sequence
obtained
through
Illumina
NovaSeq
sequencing,
revealing
genomic
size
of
4,071,293
bp,
with
G
+
C
content
44.13%,
an
N50
value
357,305
and
27
contigs.
taxonomic
affiliation
confirmed
by
analyzing
16S
rRNA
gene
overall
relatedness
indices
(OGRIs)
constructing
phylogenomic
tree
based
on
whole
genome,
showed
close
relationship
to
cabrialesii
subsp.
cabrialesii.
Genomic
annotation
using
RAST
Prokka
identified
4261
coding
DNA
sequences
(CDSs)
distributed
across
331
subsystems,
highlighting
genes
associated
biocontrol,
stress
response,
iron
acquisition.
AntiSMASH
7.1
used
for
mining,
seven
biosynthetic
clusters
that
potentially
produce
biocontrol-related
metabolites.
In
vitro
assays
antagonistic
activity
PE1
languescens
CE2,
demonstrating
its
inhibit
mycelial
growth.
study
provides
basis
investigating
B.
potato
production.
Applied Sciences,
Journal Year:
2024,
Volume and Issue:
14(2), P. 788 - 788
Published: Jan. 17, 2024
Endophytic
bacteria,
especially
those
that
participate
in
nitrogen
fixation,
play
critical
roles
supplying
essential
nutrients
for
legume
plant
growth.
Despite
there
have
been
numerous
investigations
targeting
bacterial
microbiomes
roots
and
nodules,
little
is
known
about
embryonic
bacteria
facilitate
nutrient
utilization
after
seed
germination.
Here,
we
collected
investigated
endophytic
microbiome
edible
pea
(Pisum
sativum)
embryos
using
five
representative
cultivars
a
sprout
(shoot
of
[SHP])
control.
Twenty-six
nitrogen-fixing
(NFB)
were
isolated
from
embryos,
with
three
strains
found
fresh
grain
(FGP)
snow
(SP)
exhibiting
the
strongest
nitrogenase
activity
above
85
nmol
C2H4/mL/h.
Some
NFB
isolates
are
also
potassium-solubilizing
(KSB)
or
phosphorus-solubilizing
(PSB)
utilizing
inorganic
and/or
organic
phosphorus.
All
26
showed
variable
levels
(0.41
to
7.10
μg/mL)
indole-3-acetic
acid
(IAA)
secretion.
The
nutrient-solubilizing
identified
our
research
potential
targets
biofertilizer
development.
They
could
be
useful
converting
nitrogen,
potassium,
phosphorus
into
usable
forms
plants.
At
level,
high-throughput
16S
ribosomal
RNA
(rRNA)
sequencing
40
collections
generated
4234
operational
taxonomic
units
(OTUs)
97%
identity
as
threshold
clustering
high-quality
effective
reads
(valid
tags).
Analysis
OTU
annotation
results
revealed
similar
species
community
structures,
abundance,
diversity
most
samples.
Our
embryo-derived
pool
provides
platform
dormancy
germination
peas,
well
digging
new
resources
general.
