Physiologia Plantarum,
Год журнала:
2025,
Номер
177(3)
Опубликована: Май 1, 2025
The
rising
frequency
of
extreme
climate
events
requires
sustainable
strategies
to
secure
food
production.
Environmental
stress
impacts
seed
germination
and
seedling
development,
posing
a
significant
agricultural
challenge.
To
address
this,
we
developed
applied
iron-based
nanoparticles
(Bio-NPs)
synthesized
through
green
biosynthesis
from
Haematococcus
pluvialis,
microalga
rich
in
antioxidants
like
astaxanthin.
These
Bio-NPs,
approximately
21
nm
diameter
characterized
by
negative
surface
charge,
were
used
as
priming
agents
for
maize
seeds.
Their
effects
on
physiological
traits
analyzed
with
multispectral
imaging,
showing
enhanced
normalized
difference
vegetation
index
(NDVI)
chlorophyll
levels
seedlings,
highlighting
Bio-NPs
effective
biostimulants.
Among
the
tested
concentrations,
6
mM
yielded
most
substantial
improvements
health
compared
unprimed
hydro-primed
groups.
Importantly,
vitro
studies
confirmed
that
had
no
harmful
beneficial
bacteria
fungi
agronomic
importance,
underscoring
their
safety.
Although
exact
biological
pathways
responsible
these
enhancements
are
yet
be
fully
understood,
further
research
into
plant
responses
could
yield
new
insights
biostimulation.
thus
hold
promises
strengthening
resilience
under
environmental
scenarios,
currently
observed
due
global
change,
offering
safe,
approach
enhancement.
By
leveraging
microalgae-based
biostimulants,
this
work
advances
technology,
fostering
crop
supporting
environmentally
friendly
practices.
Plant Stress,
Год журнала:
2024,
Номер
11, С. 100411 - 100411
Опубликована: Фев. 24, 2024
Carbon
quantum
dots
(CQDs),
which
belong
to
the
category
of
zero-dimensional
nanomaterials,
exhibit
remarkable
properties
including
chemical
stability,
water
dispersion,
low
cytotoxicity,
small
size,
biocompatibility,
and
photoluminescence.
Although
there
are
several
methods
for
production
CQDs,
is
an
increasing
interest
in
using
low-cost
environmentally
friendly
synthetic
methods.
Biomass-based
CQDs
a
branch
considered
most
ideal
fluorescent
nanomaterial
by
green
synthesis
strategy.
The
typical
route
can
be
conversion
waste
products
into
high-value
biomass-based
reducing
resource
enabling
sustainable
development.
This
review
will
emphasize
benefits
methods,
material
properties,
their
research
area
biology.
Additionally,
applications
as
plant
growth
promoters
sensors,
improving
stress
tolerance
bioimaging
were
also
discussed.
Herein,
this
summarizes
current
investigations
on
from
1970
2023
application
agriculture.
objective
article
use
different
improve
resistance
stressful
environments,
so
make
better.
In
word,
have
strong
potential
agricultural
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(28), С. 12542 - 12553
Опубликована: Июль 5, 2024
Although
exogenous
chemicals
frequently
exhibit
a
biphasic
response
in
regulating
plant
growth,
characterized
by
low-dose
stimulation
and
high-dose
inhibition,
the
underlying
mechanisms
remain
elusive.
This
study
demonstrates,
for
first
time,
compensatory
function
of
rhizosphere
microbiota
assisting
plants
to
withstand
pesticide
stress.
It
was
observed
that
pak
choi
plants,
foliar-spraying
imidacloprid
at
both
low
high
doses,
could
increase
total
number
bacteria
enrich
numerous
beneficial
bacteria.
These
have
capabilities
promoting
growth
degrading
pesticide,
such
as
Nocardioides,
Brevundimonas,
Sphingomonas.
The
bacterial
communities
were
recruited
stressed
through
increasing
release
primary
metabolites
root
exudates,
amino
acids,
fatty
lysophosphatidylcholines.
At
doses
application,
microbial
effect
overcame
stress,
leading
promotion.
However,
with
insufficient
counteract
resulting
inhibition.
findings
pave
way
designing
improved
application
strategies
contribute
better
understanding
how
can
be
used
an
eco-friendly
approach
mitigate
chemical-induced
stress
crops.
Journal of Agricultural and Food Chemistry,
Год журнала:
2024,
Номер
72(2), С. 1096 - 1113
Опубликована: Янв. 3, 2024
This
study
was
sought
to
investigate
the
chemical
composition
and
antibacterial
antiulcerative
colitis
(UC)
effects
of
essential
oil
from
Pruni
Semen
(PSEO).
A
GC-MS
assay
showed
that
major
compounds
in
PSEO
were
products
amygdalin
hydrolysis,
which
possessed
great
anti-inflammatory
potential.
In
vitro
experiments
demonstrated
treatment
inhibited
activity
four
kinds
intestinal
pathogens
probably
by
disrupting
cell
wall.
Further
vivo
studies
administration
significantly
improved
physiological
indexes,
attenuated
histopathological
characteristics,
proinflammatory
cytokine
production
dextran
sulfate
sodium
(DSS)-induced
UC
mice.
Network
pharmacology
molecular
docking
results
predicted
might
prevent
via
regulating
PI3K/AKT
pathway.
Western
blotting
immunofluorescence
assays
further
conducted
for
verification,
evidenced
intervention
regulated
pathway
expression
its
downstream
proteins
DSS-induced
provide
a
new
dietary
strategy
treatment.
Agronomy,
Год журнала:
2025,
Номер
15(1), С. 201 - 201
Опубликована: Янв. 15, 2025
Polyamines
(PAs)
are
low-molecular-weight
compounds
that
contain
amino
groups.
PAs
present
in
a
variety
of
organisms,
including
plants,
animals
and
microorganisms.
In
the
main
putrescine
(PUT),
spermidine
(SPD)
spermine
(SPM).
They
play
crucial
physiological
roles
plant
development,
flowering,
fruit
set,
growth,
ripening
metabolic
processes.
addition,
components
diet
have
role
health
disease.
Furthermore,
been
demonstrated
to
help
overcome
negative
effects
adverse
environmental
factors
both
biotic
abiotic
stresses.
Thus,
objective
this
review
was
examine
recent
literature
regarding
mentioned
apart
from
impact
preharvest
treatments,
applied
at
different
stages
on
fresh
crop
yield
quality
properties
harvest,
their
maintenance
during
storage,
with
special
emphasis
content
bioactive
antioxidant
activity.
Moreover,
addressed
other
processes
affecting
such
as
flowering
set.
Epigenomes,
Год журнала:
2025,
Номер
9(2), С. 10 - 10
Опубликована: Март 29, 2025
Background:
Plants
face
a
wide
range
of
environmental
stresses
that
disrupt
growth
and
productivity.
To
survive
adapt,
they
undergo
complex
metabolic
reprogramming
by
redirecting
carbon
nitrogen
fluxes
toward
the
biosynthesis
protective
secondary
metabolites
such
as
phenylpropanoids,
flavonoids,
lignin.
Recent
research
has
revealed
these
stress-induced
processes
are
tightly
regulated
epigenetic
mechanisms,
including
DNA
methylation,
histone
modifications,
chromatin
remodeling,
non-coding
RNAs.
Methods:
This
review
synthesizes
current
findings
from
studies
on
both
model
crop
plants,
examining
roles
key
regulators
in
controlling
metabolism
under
stress.
Special
focus
is
placed
dynamic
changes
acetylation,
action
small
RNAs
siRNAs
miRNAs
transcriptional
post-transcriptional
regulation.
Results:
Evidence
indicates
stress
triggers
rapid
reversible
modifications
modulate
gene
expression
linked
to
pathways.
These
not
only
facilitate
immediate
responses
but
can
also
contribute
memory.
In
some
cases,
this
memory
retained
transmitted
next
generation,
influencing
progeny
responses.
However,
critical
knowledge
gaps
remain,
particularly
concerning
temporal
dynamics,
tissue
specificity,
long-term
stability
marks
crops.
Conclusions:
Understanding
how
regulation
governs
metabolite
production
offers
promising
avenues
enhance
resilience
productivity
context
climate
change.
Future
should
prioritize
dissecting
heritability
support
development
epigenetically
informed
breeding
strategies.
Plants,
Год журнала:
2024,
Номер
13(7), С. 933 - 933
Опубликована: Март 23, 2024
Plants
are
constantly
subjected
to
environmental
changes
that
deeply
affect
their
metabolism,
leading
the
inhibition
or
synthesis
of
“specialized”
compounds,
small
organic
molecules
play
a
fundamental
role
in
adaptative
responses.
In
this
work,
Melissa
officinalis
L.
(an
aromatic
plant
broadly
cultivated
due
large
amounts
secondary
metabolites)
plants
were
exposed
realistic
ozone
(O3)
dosages
(80
ppb,
5
h
day−1)
for
35
consecutive
days
with
aim
evaluate
its
potential
use
as
elicitor
specialized
metabolite
production.
Ozone
induced
stomatal
dysfunction
throughout
whole
experiment,
associated
low
photosynthetic
performance,
decrease
energy
conversion
activity
PSII,
and
an
alteration
total
chlorophyll
content
(−35,
−36,
−10,
−17%
average
compared
controls,
respectively).
The
production
hydrogen
peroxide
at
7
from
beginning
exposure
(+47%)
resulted
lipid
peroxidation
visible
injuries.
This
result
suggests
metabolic
disturbance
within
cell
concomitant
homeostasis,
probably
limited
activation
antioxidative
mechanisms.
Moderate
accumulated
doses
O3
triggered
accumulation
hydroxycinnamic
acids
up-regulation
genes
encoding
enzymes
involved
rosmarinic
acid,
phenylpropanoid,
flavonoid
biosynthesis.
While
high
significantly
enhanced
hydroxybenzoic
acid
flavanone
glycosides.
Our
study
shows
application
investigated
concentration
period
(such
two/three
weeks)
may
become
useful
tool
stimulate
bioactive
compounds
M.
officinalis.