Plant Soil and Environment,
Journal Year:
2024,
Volume and Issue:
70(9), P. 552 - 561
Published: Aug. 20, 2024
The
impact
of
toxic
elements
(TEs)
contaminating
the
root
zone
Lupinus
angustifolius
L.
on
enzymatic
activities,
nitrification
rate,
and
changes
in
system
was
evaluated.
Lupine
cultivated
a
pot
experiment
using
two
types
soil
–
control
contamination
(with
high
degree
arsenic
(As),
cadmium
(Cd),
lead
(Pb),
zinc
(Zn)
contamination).
After
harvesting
lupine
biomass,
enzyme
activities
(β-glucosidase,
acid
phosphatase,
arylsulphatase,
lipase,
chitinase,
cellobiohydrolase,
alanine
aminopeptidase,
leucine
aminopeptidase)
soils
were
analysed.
Enzyme
decreased
with
TE
contamination.
According
to
our
results,
arylsulphatase
found
be
most
sensitive
TEs.
rate
is
closely
related
plant
activity,
as
it
stimulates
microbial
growth
multiplication
through
exudates.
close
correlations
confirmed
this
relationship
(r
=
0.73−0.99).
An
increasing
trend
contents
roots
observed
Plant
hormones
are
crucial
regulating
development
under
stress
conditions.
levels
determined
phytohormones
(auxins,
abscisic
(ABA),
salicylic
(SA),
bioactive
cytokinins
(bCKs))
lower
compared
control.
Correlations
significant
negative
between
content
(auxins:
r
–0.96
–0.97;
ABA:
–0.83
–0.86;
SA:
–0.95
–0.99,
bCKs:
–0.87
–0.93).
ratios
these
(not
their
absolute
values)
appear
determining
factor
for
protecting
plants
from
oxidative
stress.
Communications Biology,
Journal Year:
2024,
Volume and Issue:
7(1)
Published: March 4, 2024
Abstract
Calpains
are
cysteine
proteases
that
control
cell
fate
transitions
whose
loss
of
function
causes
severe,
pleiotropic
phenotypes
in
eukaryotes.
Although
mainly
considered
as
modulatory
proteases,
human
calpain
targets
directed
to
the
N-end
rule
degradation
pathway.
Several
such
transcription
factors,
hinting
at
a
gene-regulatory
role.
Here,
we
analyze
networks
moss
Physcomitrium
patens
and
characterize
regulons
misregulated
mutants
DEFECTIVE
KERNEL1
(DEK1).
Predicted
cleavage
patterns
regulatory
hierarchies
five
DEK1-controlled
subnetworks
consistent
with
role
during
targeting
multiple
functions.
Network
structure
suggests
DEK1-gated
sequential
between
fates
2D-to-3D
development.
Our
method
combines
comprehensive
phenotyping,
transcriptomics
data
science
dissect
phenotypic
traits,
our
model
explains
protease
switch
gatekeeping
potentially
also
beyond
plant
Developmental Cell,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 1, 2025
The
shoot
apical
meristem
(SAM),
which
contains
pluripotent
stem
cells,
serves
as
the
source
of
entire
system
in
land
plants.
To
find
mechanisms
underlying
SAM
development
and
its
origin,
we
employed
single-nucleus
RNA
sequencing
technology
Physcomitrium
patens,
a
single
cell
known
gametophore
cell.
We
identified
distinct
clusters
representing
major
types
P.
patens
gametophyte,
including
cells.
showed
dynamic
gene
expression
changes
during
fate
progression
found
upregulation
cytokinin
biosynthesis
genes
this
also
ENHANCER
OF
SHOOT
REGENERATION
1
(ESR1)
orthologs
important
regulators
cells
downstream
cytokinin.
Given
that
ESRs
promote
formation
under
angiosperms,
propose
cytokinin-ESR
module
represents
conserved
mechanism
promoting
identity
evolved
common
ancestor
Deleted Journal,
Journal Year:
2025,
Volume and Issue:
77(2)
Published: March 7, 2025
Nanoparticles
(NPs)
have
shown
promising
potential
to
improve
plant
resilience
against
various
abiotic
stresses
like
drought,
salinity,
heat,
cold
etc.
by
modulating
key
phytohormonal
pathways.
While
previous
studies
explored
the
efficacy
of
different
NPs
in
alleviating
individual
stresses,
a
critical
analysis
summarizing
current
understanding
NPs-phytohormone
interconnections
is
lacking.
This
review
comprehensively
surveys
recent
advances
elucidating
crosstalk
between
and
major
hormones
abscisic
acid,
auxins,
salicylic
jasmonic
cytokinins,
ethylene,
strigolactones
brassinosteroids
involved
stress
responses.
Both
biogenic
chemically
engineered
are
covered.
The
mechanisms
underlying
NP-triggered
phytohormone
signature
changes
discussed.
Critical
knowledge
gaps
such
as
lack
field
scale
evaluations
identified.
Finally,
future
prospects
include
molecular
more
deeply
using
multi-omics
approaches,
evaluation
under
conditions
diverse
environmental
contexts
genotypes,
long-term
risk
assessments,
development
targeted
multi-component
NP
formulations.
assimilates
status
outlook
emerging
NP-phytohormone
interplay
engineering
for
sustainable
agriculture
solutions.
Journal of Experimental Botany,
Journal Year:
2024,
Volume and Issue:
75(20), P. 6609 - 6624
Published: July 31, 2024
The
moss
Physcomitrium
patens
is
a
model
system
for
the
evolutionary
study
of
land
plants,
and
as
such,
it
may
contain
yet
unannotated
genes
with
functions
related
to
adaptation
water
deficiency
that
was
required
during
water-to-land
transition.
In
this
study,
we
identified
novel
gene,
Bryophyte
Co-retained
Gene
1
(BCG1),
in
P.
responsive
dehydration
rehydration.
Under
de-
rehydration
treatments,
BCG1
significantly
co-expressed
DHNA,
which
encodes
dehydrin
(DHN).
Examination
previous
microarray
data
revealed
highly
expressed
spores,
archegonia
(female
reproductive
organ),
mature
sporophytes.
addition,
bcg1
mutant
showed
reduced
tolerance,
accompanied
by
relatively
low
level
chlorophyll
content
recovery.
Comprehensive
transcriptomics
uncovered
detailed
set
regulatory
processes
were
affected
disruption
BCG1.
Experimental
evidence
might
function
antioxidant
activity,
abscisic
acid
pathway,
intracellular
Ca2+
homeostasis
resist
desiccation.
Overall,
our
results
provide
insights
into
role
bryophyte
co-retained
gene
desiccation
tolerance.
Science Advances,
Journal Year:
2024,
Volume and Issue:
10(35)
Published: Aug. 28, 2024
The
shoot
apical
meristem
(SAM)
contains
pluripotent
stem
cells
that
produce
all
the
aerial
parts
of
plant.
Stem
undergo
asymmetric
cell
divisions
to
self-renew
and
differentiating
cells.
Our
research
focused
on
unraveling
mechanisms
governing
specification
these
two
distinct
fates
following
division.
For
this
purpose,
we
used
model
organism
Plant Cell Tissue and Organ Culture (PCTOC),
Journal Year:
2024,
Volume and Issue:
159(3)
Published: Nov. 20, 2024
Abstract
In
the
in
vitro
cloning
of
specific
individuals
woody
species,
a
challenge
can
be
low
viability
explants
collected
from
old
mature
donor
trees
due
to
recalcitrance
their
plant
material.
Other
factors,
such
as
auxin–cytokinin
balance,
must
also
considered.
We
investigated
how
conditions
and
age
modulate
regeneration
capacity,
morphophysiology,
DNA
methylation
Quercus
robur
.
Explants
two
different
donors
(70-
600-year-old
trees)
were
subjected
8
treatments,
which
consisted
0,
1.25,
3.5,
or
7.0
µM
6-benzylaminopurine
(BAP)
combined
with
concentrations
0
0.5
1-naphthaleneacetic
acid
(NAA).
absence
BAP,
there
was
no
shoot
induction,
root
formation
achieved
only
shoots
70-year-old
clone.
Shoot
number
lower
Both
clones
showed
increased
capacity
under
BAP
exposure,
positively
correlated
8-hydroxydeoxyguanosine
(8-oxo-dG)
levels
antioxidant
total
phenolics.
contrast,
induction
negatively
5-methylcytosine
(m
5
C)
levels.
Treatments
induced
development
anatomical
biochemical
characteristics
underdeveloped
tissues
and/or
delayed
tissue
development,
this
effect
less
intense
Global
hypomethylation
strongly
correlates
guanine
hyperoxidation
de
novo
response.
Our
results
suggest
that
fully
may
have
growth
regulator
supplementation
needs
‘donor
age’
factor.
Older
require
higher
concentration
cytokinins
ensure
regenerative
