Journal of Plant Nutrition and Soil Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 20, 2024
Abstract
Background
Inefficient
nitrogen
(N)
use
leads
to
economic
losses
and
environmental
harm.
Improving
N
efficiency
(NUE)
is
crucial.
The
of
plant
biostimulants
(PBs),
integrated
with
good
agronomic
practices,
offers
a
sustainable
solution.
Aims
study
explores
the
potential
exhausted
cell
culture
media
from
cultures
(
Nicotiana
sp.
Gardenia
sp.)
as
PBs,
assessing
their
role
in
enhancing
physiological
status
NUE.
It
also
compares
effectiveness
against
commercial
PBs.
Methods
Two
experiments
(Experiments
1
2)
were
conducted
using
cherry
tomato
plants.
In
first
one,
two
applied
at
different
concentrations
foliar
spray
define
optimal
dose.
This
outcome
was
used
set
up
Experiment
2,
which
both
compared
PBs
under
reduced
supply.
Measurements
included
growth,
chlorophyll
(Chl)
content,
NUE
indices.
Moreover,
2
examined
gene
expression
related
assimilation,
transport,
response
oxidative
stress.
Results
Both
demonstrated
significant
increase
leaf
area
(≈11%)
aboveground
biomass
(≈13%)
media.
Furthermore,
enhancements
Chl
content
(≈10%)
accumulation
(≈20%).
These
findings
indicate
that
has
comparable
efficacy
Conclusions
underscores
practical
viability
effective
for
growth
conditions.
approach
aligns
sustainability
objectives
by
repurposing
by‐products
enhance
resilience
abiotic
stress
potentially
improve
fertilizers.
Plants,
Journal Year:
2024,
Volume and Issue:
13(2), P. 210 - 210
Published: Jan. 11, 2024
The
effects
of
different
types
biostimulants
on
crops
include
improving
the
visual
quality
final
products,
stimulating
immune
systems
plants,
inducing
biosynthesis
plant
defensive
biomolecules,
removing
heavy
metals
from
contaminated
soil,
crop
performance,
reducing
leaching,
root
development
and
seed
germination,
tolerance
to
abiotic
biotic
stressors,
promoting
establishment
increasing
nutrient-use
efficiency.
Protein
hydrolysates
are
mixtures
polypeptides
free
amino
acids
resulting
enzymatic
chemical
hydrolysis
agro-industrial
protein
by-products
obtained
animal
or
origins,
they
able
alleviate
environmental
stress
effects,
improve
growth,
promote
productivity.
Amino
involve
various
advantages
such
as
increased
yield
components,
nutrient
assimilation
tolerance,
improved
components
characteristics.
They
generally
achieved
through
hydrolysis,
with
significant
capabilities
influence
synthesis
activity
some
enzymes,
gene
expression,
redox-homeostasis.
Increased
yield,
quality;
regulated
oxidation-reduction
process,
photosynthesis,
physiological
activities;
decreased
negative
toxic
components;
anti-fungal
activities
plants
just
more
important
benefits
application
phenols
phenolic
biostimulants.
aim
this
manuscript
is
survey
impacts
acids,
hydrolysates,
phenols,
by
presenting
case
studies
successful
paradigms
in
several
horticultural
agricultural
crops.
Plants,
Journal Year:
2025,
Volume and Issue:
14(7), P. 1087 - 1087
Published: April 1, 2025
The
increasing
soil
pollution
has
accelerated
the
implementation
of
new
agricultural
regulations
that
significantly
limit
use
synthetic
nitrogen
(N)
fertilizers.
Consequently,
plants
are
likely
to
experience
nutrient
stress,
leading
decreased
productivity
and
potential
threats
food
security.
To
address
these
critical
challenges,
microbial-based
biostimulant
(BS)
products,
which
utilize
metabolites
from
microorganisms,
offer
a
sustainable
eco-friendly
solution
mitigate
plant
stress.
This
study
evaluated
effects
radicular
application
BS
containing
L-α-amino
acids
on
lettuce
pepper
crops
under
two
regimes:
optimal
N
availability
stress
(NS).
Various
parameters,
including
growth,
production,
soluble
proteins,
photosynthetic
pigment
content,
oxidative
markers,
were
assessed.
Under
conditions,
enhanced
commercial
biomass
in
vegetative
pepper,
indicating
BSs
can
reduce
need
for
nitrate
uptake
endogenous
amino
acid
synthesis,
thereby
conserving
energy
other
physiological
processes.
Despite
application,
NS
conditions
reduced
reproductive
growth
both
species.
However,
treatment
increased
chloroplast
pigments,
improving
light
absorption
efficiency.
reduction
carotenoid/chlorophyll
ratio
suggests
efficient
allocation
production.
Thus,
proved
effective
mitigating
plants,
enhancing
while
it
improved
yield,
particularly
biomass.
These
findings
underscore
symbiotic
as
promising
tool
agriculture
availability.
Horticulturae,
Journal Year:
2024,
Volume and Issue:
10(2), P. 132 - 132
Published: Jan. 30, 2024
Climate
change
and
the
degradation
of
ecosystems
is
an
urgent
issue
to
which
agricultural
sector
contributes
through
overuse
productive
inputs
such
as
chemical
fertilizers.
A
disproportionate
use
nitrogenous
fertilizers
combined
with
low
efficiency
inevitably
results
in
worsening
environmental
problems
(greenhouse
gas
emissions,
soil
degradation,
water
eutrophication,
groundwater
pollution).
Nevertheless,
increasing
population
growth
puts
additional
pressure
on
already
struggling
world.
Awareness
these
has
pushed
world
research
towards
development
more
sustainable
but
equally
efficient
strategies
terms
production.
The
biostimulant
substances
and/or
micro-organisms
promoting
yield,
resilience
abiotic
stresses
plants,
functional
quality
products
have
been
indicated
a
valid
strategy
improve
sustainability
practices.
In
modern
horticulture,
vegetable–protein
hydrolysates
(V-PHs)
gaining
interest.
These
biostimulants
could
influence
plants
directly
by
stimulating
carbon
nitrogen
metabolism
interfering
hormonal
activity,
also
indirectly
V-PHs
nutrient
availability
plant
substrates
increase
uptake
utilization
efficiency.
By
exploiting
this
aspect,
it
would
be
possible
reduce
without
affecting
potential
yields.
After
brief
introduction
issues
related
intensive
fertilizers,
review
focuses
(NUE).
Starting
their
heterogeneous
origins
compositions,
effects
metabolism,
well
physiological
biochemical
processes
involved
products,
concludes
in-depth
discussion
major
leafy
vegetables.
Physiologia Plantarum,
Journal Year:
2024,
Volume and Issue:
176(1)
Published: Jan. 1, 2024
Abstract
The
use
of
biostimulants
in
agriculture
is
currently
emerging
as
a
resource
to
increase
crop
productivity
and
quality.
Additionally,
the
concurrent
application
other
bioactive
materials
or
bioregulators
alongside
can
prove
valuable
mitigating
oxidative
stress
induced
by
various
abiotic
stresses.
However,
some
cases,
these
compounds
applied
at
inadequate
doses
produce
toxic
effects
under
non‐stressful
conditions.
Therefore,
objective
this
study
was
analyze
applying
seaweed‐derived
biostimulant
containing
additional
(Cytolan®
Stress)
optimal
growth
Lettuce
plants
were
grown
control
conditions
without
(control
plants)
with
two
Cytolan®
(seaweed‐derived
proline)
Stress
foliarly
three
(150,
300,
500
mL/hL).
Growth
quality
parameters
physiological
processes
within
primary
secondary
metabolism
analyzed.
results
identified
300
mL/hL
dose
best
treatment.
Thus,
it
improved
biomass
production,
photosynthetic
activity,
increased
phytohormone,
amino
acids
(AAs),
mineral
nutrient
profiles,
stimulated
N
assimilation.
Besides,
substantially
enhanced
antioxidant
capacity
concentration
compounds,
leading
lettuce
potential
tolerance.
caused
phytotoxic
effects,
underscoring
importance
proper
dose.
Journal of the Science of Food and Agriculture,
Journal Year:
2024,
Volume and Issue:
104(12), P. 7603 - 7616
Published: May 28, 2024
Protein
hydrolysates
(PHs)
can
enhance
plant
nitrogen
nutrition
and
improve
the
quality
of
vegetables,
depending
on
their
bioactive
compounds.
A
tomato
greenhouse
experiment
was
conducted
under
both
optimal
(14
mM)
suboptimal
(2
(N-NO
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 14, 2025
Abstract
The
field
experiments
were
conducted
in
the
middle
Gangetic
plain
sub-tropical
region
of
India.
objective
research
was
to
assess
nutrient
uptake
and
quality
potato
tubers
under
various
irrigation
schedules
commercial
amino
acid
biostimulant
(AAB)
treatments.
trial
used
a
split-plot
design
incorporating
three
at
key
crop
growth
stages:
stages
(I1;
3
irrigations),
four
(I2;
4
five
(I3;
5
along
with
different
sources
AAB:
A0
(control),
A1
(Siapton
10L),
A2
(Amino
liquid),
A3
Plus),
combined
recommended
dose
fertilizers.
significantly
enhanced
by
spraying
all
AAB.
plant-based
(A2)
led
greatest
increase
total
soluble
solids
(TSS,
18.12
28.20%),
starch
(21.36
23.93%),
protein
content
(2.11
2.76%),
followed
mixture
biostimulants
(A3),
lowest
response
observed
animal-based
(A1).
maximum
treatment,
nitrogen
ranging
from
65.74
152.26
kg
ha−
1,
120.12
163.23
74.90
79.69
1
30,
60,
90
DAS,
respectively,
A1.
Maximum
phosphorus
ranged
32.54
107.50
47.73
70.57
56.78
same
trend
for
potassium
uptake.
Regarding
schedule,
treatments
showed
significant
effects,
tuber
yield
(230.5
226.1
q
during
first
second
years,
respectively)
recorded
I2
(4
stages),
I3
(5
irrigations)
I1
(3
irrigations).
(239.0
234.2
A2.
Significant
interaction
effects
between
AAB
found,
highest
effect
on
(255.0
241.3
I2A2
combination,
other
treatment
combinations.
impact
schedule
found
be
insignificant.
These
findings
suggest
that
foliar
application
can
improve
use
efficiency
(NUE)
facilitating
easier
absorption
enhancing
quality.