PLANT PHYSIOLOGY,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 12, 2024
Abstract
Oxygen
deficiency
(hypoxia)
occurs
naturally
in
many
developing
plant
tissues
but
can
become
a
major
threat
during
acute
flooding
stress.
Consequently,
plants
as
aerobic
organisms
must
rapidly
acclimate
to
hypoxia
and
the
associated
energy
crisis
ensure
cellular
ultimately
organismal
survival.
In
plants,
oxygen
sensing
is
tightly
linked
with
oxygen-controlled
protein
stability
of
group
VII
ETHYLENE-RESPONSE
FACTORs
(ERFVII),
which,
when
stabilized
under
hypoxia,
act
key
transcriptional
regulators
hypoxia-responsive
genes
(HRGs).
Multiple
signaling
pathways
feed
into
fine-tune
decision-making
First,
ATP
shortage
upon
directly
affects
status
adjusts
anaerobic
metabolism.
Secondly,
altered
redox
homeostasis
leads
reactive
nitrogen
species
(ROS
RNS)
accumulation,
evoking
oxidative
stress
acclimation.
Finally,
phytohormone
ethylene
promotes
improve
acclimation,
while
turn
alter
ethylene,
auxin,
abscisic
acid,
salicylic
jasmonate
guide
development
responses.
this
Update,
we
summarize
current
knowledge
on
how
energy,
redox,
hormone
are
induced
subsequently
integrated
at
molecular
level
stress-tailored
We
show
that
some
HRGs
responsive
changes
independently
status,
propose
an
updated
HRG
list
more
representative
for
marker
gene
expression.
discuss
synergistic
effects
their
phenotypic
consequences
context
both
environmental
developmental
hypoxia.
ABSTRACT
Plants
have
evolved
the
ability
to
respond
a
diverse
range
of
biotic
and
abiotic
stresses.
Often,
combining
these
stresses
multiplies
challenge
for
plants,
but
occasionally
combined
stress
can
induce
unexpected
synergistic
defences.
In
maize,
flooding
herbivory
induces
salicylic
acid
(SA)‐dependent
defence
against
Spodoptera
frugiperda
(fall
armyworm).
this
study
we
used
RNAseq
metabolic
profiling
show
that
flavonoids
are
involved
in
maize
response
herbivory.
To
assess
role
flood‐induced
S.
resistance,
analyzed
idf
mutant
has
compromised
expression
chalcone
synthase,
first
enzyme
flavonoid
biosynthesis.
This
flavonoid‐deficient
was
both
resistance
SA
accumulation.
These
data
revealed
an
requirement
induction.
contrast
,
3′
hydroxylase
mutant,
pr1
showed
enhanced
accumulation
after
combinatorial
treatment,
which
closely
correlated
with
elevated
levels
select
dihydroflavonol
reductase,
anthocyaninless1
(
a1
)
unaffected
its
SA‐induction.
indicate
specific
likely
play
resistance.
Plants,
Journal Year:
2025,
Volume and Issue:
14(9), P. 1268 - 1268
Published: April 22, 2025
Developing
crop
varieties
with
combined
salinity
and
waterlogging
tolerance
is
essential
for
sustainable
agriculture
food
security
in
regions
affected
by
these
stresses.
This
process
requires
an
efficient
method
to
rapidly
accurately
assess
the
of
multiple
genotypes
Our
study
examined
use
a
pot
trial
combination
assessment
traits
100
wheat
(Triticum
aestivum
L.)
sourced
from
around
world
The
stresses
were
imposed
on
plants
using
mM
NaCl
submerging
root
systems
their
bathing
solutions.
data
gathered
subjected
principal
component
analysis
(PCA),
integrated
score
(IS)
each
genotype
was
calculated
based
morpho-physiological
traits;
used
rank
respect
or
susceptibility.
There
significant
differences
among
terms
relative
reductions
growth
parameters
chlorophyll
contents,
suggesting
rich,
genetic
diversity.
To
accuracy
this
methodology
gain
insight
into
causes
susceptibility,
five
most
tolerant
(Misr4
(W85),
Corack
(W41),
Kzyl-Sark
(W94),
Hofed
(W57),
BAW-1157
(W14)),
two
least
(Livingstong
(W60)
Sunvale
(W73))
selected
IS
PCA
analysis.
These
then
grown
hydroponically
without
stress.
second
again
PCA,
calculated;
there
reasonable
agreement
ranking
between
trials.
(W85;
Misr4
Egypt)
susceptible
(W73;
Australia)
further
detail
third
trial.
Plants
(W85)
had
lower
Na+/K+
ratios,
higher
superoxide
dismutase,
peroxidase,
catalase,
ascorbate
peroxidase
activities,
glutathione
concentrations.
As
result,
concentrations
reactive
oxygen
species
(H2O2
O2•−)
malondialdehyde
than
those
(W73).
offers
sources
germplasm
stress
tolerance.
It
has
also
identified
that
can
be
future
breeding
work
research
mechanisms
susceptibility
Communications Biology,
Journal Year:
2025,
Volume and Issue:
8(1)
Published: April 24, 2025
Abstract
Plants
frequently
encounter
a
range
of
abiotic
stresses
and
their
combinations.
Even
though
rarely
occur
in
isolation,
research
on
plant
stress
resilience
typically
focuses
single
environmental
stressors.
Plant
responses
to
combinations
are
often
distinct
from
corresponding
individual
stresses.
Factors
determining
the
outcomes
combined
complex
multifaceted.
In
this
review,
we
summarize
advancements
our
understanding
mechanisms
underlying
co-occurring
(combined
sequential)
stresses,
focusing
morphological,
physiological,
developmental,
molecular
aspects.
Comprehensive
acclimation,
including
signaling
response
can
contribute
development
strategies
for
enhancing
dynamic
environments.
Nanomaterials,
Journal Year:
2024,
Volume and Issue:
14(15), P. 1253 - 1253
Published: July 26, 2024
Climate
change
is
a
global
problem
facing
all
aspects
of
the
agricultural
sector.
Heat
stress
due
to
increasing
atmospheric
temperature
one
most
common
climate
impacts
on
agriculture.
has
direct
effects
crop
production,
along
with
indirect
through
associated
problems
such
as
drought,
salinity,
and
pathogenic
stresses.
Approaches
reported
be
effective
mitigate
heat
include
nano-management.
Nano-agrochemicals
nanofertilizers
nanopesticides
are
emerging
approaches
that
have
shown
promise
against
stress,
particularly
biogenic
nano-sources.
Nanomaterials
favorable
for
production
their
low
toxicity
eco-friendly
action.
This
review
focuses
different
stresses
production.
Nano-management
crops
under
including
application
nanopesticides,
discussed.
The
potential
limitations
these
nano-agrochemicals
reviewed.
Potential
nanotoxicity
need
more
investigation
at
local,
national,
levels,
well
additional
studies
into
soil,
plant,
microbial
properties
processes.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 29, 2024
Abstract
Flooding
impairs
plant
growth
through
oxygen
deprivation,
which
activates
survival
and
acclimation
responses.
Low-oxygen
responses
are
generally
associated
with
activation
of
group
VII
ETHYLENE-RESPONSE
FACTOR
(ERFVII)
transcription
factors.
However,
mechanism
molecular
components
by
ERFVII
factors
initiate
gene
expression
not
fully
elucidated.
Here,
we
show
that
the
Mediator
complex
subunit
At
MED25
is
recruited
RELATED
TO
APETALA
2.2
(RAP2.2)
RAP2.12
to
coordinate
during
hypoxia
in
Arabidopsis
thaliana
..
The
med25
mutants
display
reduced
low-oxygen
stress
tolerance.
associates
several
ERFVII-controlled
core
genes
its
loss
under
due
decreasing
RNA
polymerase
II
recruitment.
Protein
pulldown
assays
demonstrate
built
around
adjusted
conditions.
Moreover,
hypoxia,
no
functional
cooperation
between
two
subunits
MED8
MED16
occurs,
contrasting
previous
observations
made
for
other
In
addition,
function
independent
from
ethylene
signalling.
Finally,
a
conservation
at
level
was
found
MED25-ERFVII
module
monocot
Oryza
sativa
,
pointing
potentially
universal
role
enabling
ERFVII-dependent
transcript
plants.
Functional Plant Biology,
Journal Year:
2024,
Volume and Issue:
51(4)
Published: March 28, 2024
In
recent
years,
research
on
flooding
stress
and
hypoxic
responses
in
plants
has
gathered
increasing
attention
due
to
climate
change
the
important
role
of
O2
metabolism
signalling.
This
Collection
Functional
Plant
Biology
‘Flooding
hypoxia
plants’
presents
key
contributions
aimed
at
progressing
our
current
understanding
how
respond
low-O2
conditions,
a
combination
stresses
commonly
found
flooded
areas.
The
emphasises
characterisation
diverse
plant
across
different
developmental
stages,
from
seed
germination
fully
developed
plants,
under
water
conditions
ranging
waterlogging
complete
submergence,
or
simply
resulting
limited
diffusivity
bulky
tissues.
Additionally,
this
highlights
approaches,
including
eco-physiological
responses,
detailed
descriptions
root
anatomical
characteristics
their
surrounding
microenvironments,
evaluation
microbiota
stress,
modification
gene
expression,
evaluations
germplasm
collections.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 23, 2024
Abstract
Potato
is
highly
water
and
space
efficient
but
susceptible
to
abiotic
stresses
such
as
heat,
drought,
or
flooding,
which
are
severely
exacerbated
by
climate
change.
Understanding
of
crop
acclimation
stress,
however,
remains
limited.
Here,
we
present
a
comprehensive
molecular
physiological
high-throughput
profiling
potato
(
Solanum
tuberosum
,
cv.
Desirée)
under
drought
waterlogging
applied
single
in
combinations
designed
mimic
realistic
future
scenarios.
Stress-responses
were
monitored
via
daily
phenotyping
multi-omics
analyses
leaf
samples
comprising
transcriptomics,
proteomics,
metabolomics
hormonomics
at
several
timepoints
during
after
stress
treatments.
Additionally,
critical
metabolites
tuber
analysed
the
end
period.
Integrative
analysis
data
was
performed
using
bioinformatic
pipeline,
established
here,
based
on
machine
learning
knowledge
networks.
Overall,
had
most
immediate
dramatic
effects
plants,
interestingly
activating
ABA-responses
similar
stress.
In
addition,
observed
distinct
signatures
multiple
levels
response
heat
combination
both.
all
treatments,
found
downregulation
photosynthesis
different
levels,
an
accumulation
minor
amino
acids
diverse
induced
hormones.
Our
integrative
provides
global
insights
into
plant
responses,
facilitating
improved
breeding
strategies
towards
climate-adapted
varieties.
One
Sentence
Summary
Integrated
reveals
combined
related
