Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Nov. 25, 2024
Gray
blight
is
a
serious
threat
to
the
tea
[Camellia
sinensis
(L.)
O.
Kuntze]
production
in
major
cultivating
countries
including
India.
The
disease
caused
by
Pestalotiopsis-like
species.
In
this
study,
five
isolates
of
Pseudopestalotiopsis
species
isolated
from
symptomatic
leaf
samples
North
Bengal,
India
were
investigated.
Based
on
multi-locus
phylogenetic
analysis
using
concatenated
sequences
three
(ITS,
tef-1
alpha,
and
tub-2)
loci,
cultural
micromorphological
characters,
host
association,
fungal
identified
as
ampullacea
F.
Liu
&
L.
Cai.
morphological
also
revealed
that
evidently
differentiated
other
To
date,
P.
has
not
been
reported
plants
Among
studied,
isolate
NKT0P03
was
randomly
selected
for
pathogenicity
tests
its
sensitivity
fungicides
microbial
antagonists.
test,
showed
weak
high
virulence
reactions
25
different
cultivars.
pathogen
an
avirulent
reaction
cultivar
TV11.
order
identify
effective
management
strategy
against
new
pathogen,
synthetic
biocontrol
agents
evaluated
laboratory.
Results
carbendazim
+
mancozeb,
hexaconazole,
propiconazole,
valextra
with
85.1%
89.8%
range
inhibitory
activity
NKT0P03.
agents,
Trichoderma
harzianum,
T.
reesei,
hamatum,
Bacillus
subtilis,
Microbacterium
barkeri
efficient
bioagents
antagonistic
ranging
between
66.6%
84.2%.
Thus,
these
can
be
recommended
causing
gray
after
their
field
evaluations.
Frontiers in Plant Science,
Journal Year:
2025,
Volume and Issue:
15
Published: Jan. 20, 2025
The
quality
of
fresh
tea
leaves
is
crucial
to
the
final
product,
and
maintaining
microbial
stability
in
plantations
essential
for
optimal
plant
growth.
Unique
communities
play
a
critical
role
shaping
flavor
enhancing
resilience
against
biotic
stressors.
Tea
production
frequently
challenged
by
pests
diseases,
which
can
compromise
both
yield
quality.
While
stress
generally
has
detrimental
effects
on
plants,
it
also
activates
defense
metabolic
pathways,
leading
shifts
communities.
Microbial
biocontrol
agents
(MBCAs),
including
entomopathogenic
antagonistic
microorganisms,
present
promising
alternative
synthetic
pesticides
mitigating
these
stresses.
In
addition
controlling
MBCAs
influence
composition
communities,
potentially
health
resilience.
However,
despite
significant
advances
laboratory
research,
field-level
impacts
microecology
remain
insufficiently
explored.
This
review
provides
insights
into
interactions
among
insects,
offering
strategies
improve
pest
disease
management
plantations.
Current Issues in Molecular Biology,
Journal Year:
2023,
Volume and Issue:
46(1), P. 81 - 95
Published: Dec. 21, 2023
Plant
immobility
renders
plants
constantly
susceptible
to
various
abiotic
and
biotic
stresses.
Abiotic
stresses
are
known
produce
reactive
oxygen
species
(ROS),
which
cause
comparable
cellular
secondary
reactions
(osmotic
or
oxidative
stress),
leading
agricultural
productivity
constraints
worldwide.
To
mitigate
the
challenges
caused
by
these
stresses,
have
evolved
a
variety
of
adaptive
strategies.
Phenolic
acids
form
key
component
strategies,
as
they
predominantly
be
secreted
in
response
can
divided
into
different
subclasses
based
on
their
chemical
structures,
such
hydroxybenzoic
hydroxycinnamic
acids.
This
review
analyzes
derivatives
increase
under
stressful
conditions,
so
withstand
environmental
regulate
physiological
processes
through
acting
signaling
molecules
that
gene
expression
biochemical
pathways.
The
mechanism
action
used
acid
involves
minimization
damage
maintain
homeostasis
protect
vital
components
from
harm.
purpose
this
is
highlight
potential
metabolites/derivatives
antioxidants.
We
uses
metabolites
associated
with
contributions
plant
growth
development.
Current Research in Microbial Sciences,
Journal Year:
2023,
Volume and Issue:
5, P. 100200 - 100200
Published: Jan. 1, 2023
Rhizobacteria
associated
with
cultivated
crops
are
known
to
stimulate
plant
growth
through
various
indirect
or
direct
mechanisms.
In
recent
years,
the
host
list
of
promotion/promoting
rhizobacteria
has
expanded
include
bean,
barley,
cotton,
maize,
rice,
vegetables,
peanut,
wheat,
and
several
plantation
crops.
However,
interaction
tea
plants
organic
conventional
gardens
is
poorly
understood.
present
study,
rhizobacterial
species
rhizosphere
were
isolated
from
14
located
in
North
Bengal,
India.
total,
16
isolates
collected
soil
samples
assessed
for
antagonistic
activity
under
laboratory
conditions.
Molecular
characterization
based
on
sequencing
16S
rRNA
gene
revealed
dominance
Bacillus
five
followed
by
Pseudomonas
two
species.
Interestingly,
only
one
isolate
was
affiliated
actinobacteria,
i.e.,
Microbacterium
barkeri.
Out
isolates,
subtilis
OKAKP01,
B.
BNLG01,
paramycoides
BOK01,
M.
barkeri
BPATH02,
Stenotrophomonas
maltophilia
BSEY01
showed
highest
inhibition
against
Fusarium
solani
(68.2%
72.8%),
Pseudopestalotiopsis
theae
(71.1%
85.6%),
Exobasidium
vexans
(67.4%
78.3%)
causing
respective
dieback,
gray
blight,
blister
blight
diseases
crop.
Further,
these
also
possessed
significantly
greater
antifungal
(siderophore
producer,
protease,
chitinase,
cellulase
activity)
(indole-3-acetic
acid
production,
ACC
deaminase,
ammonia,
phosphate
solubilization)
traits
over
other
eleven
isolates.
Therefore,
chosen
their
nursery
Results
experiments
that
improved
rates
compared
control.
this
study
suggests
could
be
used
formulate
biopesticides
biofertilizers,
which
applied
sustainable
cultivation
improve
crop
health
reduce
disease
attack.
Fusarium
wilt
incited
by
oxysporum
Schlectend.
Fr.
f.
sp.
lycopersici
(Sacc.)
(FOL)
is
a
prevalent
disease
of
tomato
crop
worldwide.
In
the
recent
past,
was
managed
using
integrated
approaches
such
as
use
synthetic
fungicides,
natural
agents,
and
host-plant
resistance.
Genetic
advancement
resistance
in
cultivars
most
economical
eco-friendly
way
to
reduce
risk
wilt.
this
article,
we
start
with
brief
outline
pathogen
epidemiology,
genetic
pathogenic
variability,
traditional
efforts
providing
first
insights
into
determinants
regulating
host
response
various
races
FOL
tomatoes.
Recent
have
focused
on
reducing
nature
through
integrating
omics
including
transcriptomics,
genomics,
metabolomics,
proteomics,
which
made
it
possible
better
understand
pathogenesis
defence
mechanisms
involved
interaction
between
plants.
We
discussed
remarkable
instances
improvement
plant
against
via
genomics-assisted
methods.
analogous,
functional
genomic
like
RNA-seq
are
performing
superior
role
enlightening
several
molecular
aspects
pathogen.
Further,
years
metabolomics
proteomics
also
been
deployed
disclose
signalling
pathways,
players
complex
networks
contributing
FOL.
Lastly,
discuss
perspective
potential
future
research
high-throughput
phenotyping
evolving
breeding
methods
rapidly
develop
resistant
under
climate
change.
