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.
Physiologia Plantarum,
Год журнала:
2024,
Номер
176(1)
Опубликована: Янв. 1, 2024
Abstract
Dark
septate
endophytes
(DSE)
are
widespread
colonizers
of
plant
roots
and
have
important
ecological
functions
such
as
the
regulation
growth
nutrient
uptake.
The
mechanisms
by
which
DSE
mycelium
its
extracellular
metabolites
promote
not
yet
been
determined.
Here,
growth‐promoting
effects
(H)
(M)
on
alfalfa
(
Medicago
sativa
L.)
were
investigated.
Treatments
H,
M
HM
increased
total
biomass
23.9%,
47.2%
47.1%,
respectively.
H
modified
root
structure
increasing
volume
reducing
tissue
density,
promoting
Metabolomic
analysis
indicates
that
exudates
contained
204
different
types,
mainly
lipids
lipid‐like
molecules,
organic
acids
derivatives,
benzenoids.
There
more
organoheterocyclic
compounds
fewer
derivatives
in
treatment
than
M.
Pathway
shows
had
greater
glycerophospholipid
metabolism
N‐glycan
biosynthesis
pathway.
results
provide
information
involved
metabolic
promotion
DSE.
Horticulturae,
Год журнала:
2024,
Номер
10(8), С. 837 - 837
Опубликована: Авг. 7, 2024
The
acceleration
of
the
climate
crisis
and
increased
demand
for
water
have
caused
stress
in
many
agricultural
lands
worldwide.
This
issue
is
utmost
importance
as
represents
one
most
crucial
challenges
sector
food
security,
affecting
growth
yield
crops.
Developing
strategies
to
mitigate
adverse
effects
improve
crop
tolerance
therefore
crucial.
review
aimed
analyze
effect
practices
such
elicitation
biostimulation
on
mitigating
vegetables.
manuscript
provides
relevant
recent
information
about
studied
various
vegetable
species
their
responses
under
deficit
non-agricultural
stress,
highlighting
use
elicitors
biostimulants.
Inclusion
criteria
were
scientific
reports
book
chapters
published
from
2000
2024,
including
keywords
follows:
+
vegetables,
effects,
drought
management,
eustressors
biostimulants
mitigation.
According
reported
literature,
it
was
found
that
physiological,
biochemical,
molecular
vegetables
depended
factors
severity
duration
deficit,
plant
species,
phenological
state
plants.
Traditional
agronomic
tillage,
mulching,
intercropping
management
evaluated.
Recently,
alternative
gained
significant
interest,
exogenous
application
phytohormones
osmoprotectants,
nutrient
UV-B
light,
radiation,
acoustic
waves,
among
others,
whose
eustressive
(as
elicitors)
been
demonstrated.
Among
these
eustressors,
those
physical
origin
show
great
potential
stress.
To
individual
mitigation,
we
proposed
combination
hormones
gamma
rays,
He-Ne
laser,
UV-B.
Further
exploration
required
establish
doses,
conditions,
mitigation
yield,
underscoring
ongoing
nature
this
research.
Physiologia Plantarum,
Год журнала:
2023,
Номер
175(5)
Опубликована: Авг. 1, 2023
Basal
plant
immune
responses
are
activated
by
the
recognition
of
conserved
microbe-associated
molecular
patterns
(MAMPs),
or
breakdown
molecules
released
from
plants
after
damage
pathogen
penetration,
so-called
damage-associated
(DAMPs).
While
chitin-oligosaccharide
(CHOS),
a
primary
component
fungal
cell
walls,
is
most
known
as
MAMP,
wall-derived
oligosaccharides,
cello-oligosaccharides
(COS)
cellulose,
and
xylo-oligosaccharide
(XOS)
hemicellulose
representative
DAMPs.
In
this
study,
elicitor
activities
COS
prepared
cotton
linters,
XOS
corn
cobs,
(CHOS)
crustacean
shells
were
comparatively
investigated.
Arabidopsis,
COS,
XOS,
CHOS
treatment
triggered
typical
defense
such
reactive
oxygen
species
(ROS)
production,
phosphorylation
MAP
kinases,
callose
deposition,
activation
defense-related
transcription
factor
WRKY33
promoter.
When
used
at
concentrations
with
similar
activity
in
inducing
ROS
production
depositions,
was
particularly
potent
activating
MAPK
kinases
promoters.
Among
different
degrees
polymerization,
cellotriose
xylotetraose
showed
highest
for
Gene
ontology
enrichment
analysis
RNAseq
data
revealed
that
simultaneous
(oligo-mix)
effectively
activates
disease
resistance.
practice,
oligo-mix
enhanced
resistance
tomato
to
powdery
mildew,
but
growth
not
inhibited
rather
tended
be
promoted,
providing
evidence
has
beneficial
effects
on
improving
plants,
making
them
promising
class
compounds
practical
application.
The Science of The Total Environment,
Год журнала:
2023,
Номер
910, С. 168669 - 168669
Опубликована: Ноя. 19, 2023
Titanium
dioxide
nanoparticles
have
attracted
considerable
attention
due
to
their
extensive
applications;
however,
multifaceted
influence
on
plant
physiology
and
the
broader
environment
remains
a
complex
subject.
This
review
systematically
synthesizes
recent
studies
hormetic
effects
of
TiO2
plants
-
phenomenon
characterized
by
dual
dose-response
behavior
that
impacts
various
functions.
It
provides
crucial
insights
into
molecular
mechanisms
underlying
these
effects,
encompassing
photosynthesis,
oxidative
stress
response
gene
regulation.
The
significance
this
article
consists
in
its
emphasis
necessity
establish
clear
regulatory
frameworks
promote
international
collaboration
standardize
responsible
adoption
nano-TiO2
technology
within
agricultural
sector.
findings
are
presented
with
intention
stimulating
interdisciplinary
research
serving
as
an
inspiration
for
further
exploration
investigation
vital
continually
evolving
field.
Agronomy,
Год журнала:
2024,
Номер
14(6), С. 1233 - 1233
Опубликована: Июнь 6, 2024
Ozone
(O3)
pollution
is
a
critical
issue
for
human
health,
crop
yield,
vegetation
growth
biodiversity,
and
food
safety.
Several
protection
strategies
from
O3-induced
injuries
have
been
proposed
crops.
Here,
we
investigated
if
the
foliar
application
of
wood
distillate
(WD),
plant-based
biostimulant
applied
once
week
(0.2%,
v/v)
four
consecutive
weeks,
could
protective
effect
against
damage
caused
by
chronic
O3
concentrations
(80
ppb
O3,
5
h
day−1
28
days)
in
basil
plants
(chosen
as
model
horticultural
plant).
The
results
revealed
that
exposed
to
showed
severe
chlorotic
spots
localized
interveinal
adaxial
surface,
chlorophyll
loss
(−25%
compared
controls
maintained
filtered
air),
membrane
impairment
indicated
significant
increase
malondialdehyde
content
(+62%).
Conversely,
treated
with
WD
exhibited
reduction
visible
injuries,
preservation
integrity,
production
antioxidant
compounds
such
abscisic
salicylic
acids
(+21
+62%,
respectively),
suggesting
WD.
This
research
highlights
new
regarding
efficacy
mitigating
negative
effects
oxidative
pressure
plants.
