Transcriptome analysis of alfalfa (Medicago sativa L.) roots reveals overwintering changes in different varieties
Yajun Ma,
Guozhu Yang,
Ruijun Duan
и другие.
Czech Journal of Genetics and Plant Breeding,
Год журнала:
2024,
Номер
60(2), С. 97 - 104
Опубликована: Март 15, 2024
Low
temperatures
are
one
of
the
major
abiotic
stresses
that
affect
alfalfa's
development
and
yield.
Enhancing
frost
resistance
through
resistance-related
genes
is
most
effective
ways
to
address
this
issue
in
alfalfa.
Therefore,
exploring
cold-resistant
gene
resources
cultivation
alfalfa
cultivars
inevitable
order
achieve
high
yield
quality.
In
study,
we
conducted
transcriptome
profiling
roots
obtained
from
two
genotypes,
i.e.,
Qingda
No.1
for
freeze
tolerance
Gannong
No.9
sensitivity.
We
observed
had
more
lateral
a
developed
root
system
after
overwintering,
while
fewer
an
underdeveloped
system.
After
exhibited
higher
superoxide
dismutase
(SOD)
activity
compared
No.9,
showed
perosuperoxide
dismutasexidase
(POD)
than
No.1.
identified
25,935
differentially
expressed
genes,
with
12
979
956
differential
found
freeze-tolerant
variety
group
freeze-sensitive
group,
respectively.
The
enrichment
Kyoto
Encyclopedia
Genes
Genomes
(KEGG)
pathways
also
differed
between
groups.
discovered
several
family
members,
frequent
transcription
factors
were
bHLH,
B3,
NAC,
WRKY,
MYB_related.
These
findings
provide
comprehensive
information
further
understand
molecular
mechanisms
adaptation
freezing
stress
offer
potential
functional
candidate
stress.
Язык: Английский
Defense mechanisms of alfalfa against cyclic tetramethylene tetranitramine (HMX) stress
The Science of The Total Environment,
Год журнала:
2023,
Номер
898, С. 165585 - 165585
Опубликована: Июль 17, 2023
Язык: Английский
Transformation of vegetation under the conditions of the impact of military actions on the natural environment in Ukraine: A review
Ecology and Noospherology,
Год журнала:
2023,
Номер
34(2), С. 101 - 107
Опубликована: Дек. 26, 2023
The
negative
consequences
of
various
types
military
activity
on
physical
disturbances
and
chemical
pollution
the
environment
are
systematized.
Factors
include
potentially
toxic
elements,
energetic
compounds
(explosives,
fuels)
warfare
agents.
According
to
systematization
available
data
long-term
impact
exercises
actions
territories
different
countries
soil
pollution,
metal
dominate
among
organic
pollutants
compounds.
combination
violations
with
multicomponent
creates
a
specificity
natural
compared
other
anthropogenic
factors.
following
directions
research
into
problem
were
noted:
detection,
distribution
ecotoxicology
in
environments,
biodiversity
vegetation
dynamics,
phytoremediation
reduce
level
ecological
physiological
factors
plant
tolerance,
degradation
detoxification
plants.
tolerance
plants
residues
explosive
substances
classes
occurs
due
general
pathways
biochemical
transformation,
which
ensure
xenobiotics.
Taking
account
current
state
problem,
literary
Ukraine
transformation
summarized.
Among
these
areas,
assessment
damage
caused
by
armed
aggression
environment;
environmental
monitoring
combat
action;
analysis
vegetation.
Destructions
as
result
action
led
significant
changes
vegetation,
associated
ruderalization
adventization.
role
ruderal
(including
invasive)
common
flora
under
conditions
habitats
is
analyzed.
Increased
invasive
species
high
levels
metals
can
be
used
for
disturbed
but
will
create
competitive
advantage
more
intensive
spread
native
new
risks
phytodiversity.
Язык: Английский
Defense Mechanisms of Alfalfa Against Cyclic Tetramethylene Tetranitramine (Hmx) Stress
Опубликована: Янв. 1, 2023
Much
attention
has
been
paid
to
the
environmental
toxicity
and
ecological
risk
caused
by
cyclic
tetramethylene
tetranitramine
(HMX)
pollution
in
military
activity
sites.
In
this
study,
response
mechanism
of
alfalfa
plants
HMX
was
analyzed
from
aspects
photosynthetic
system,
micromorphology,
antioxidant
enzyme
mineral
metabolism,
secondary
metabolism.
Exposure
5
mg·L-1
resulted
a
significant
increase
leaf
N
content
drift
Fourier
transform
infrared
protein
peak
area.
Transmission
electron
microscopy
images
revealed
damage
root
system
subcellular
morphology,
but
plant
leaves
effectively
resisted
pressure,
parameters
essentially
maintained
steady-state
levels.
The
proline
decreased
significantly
23.1–47.2%,
reactive
oxygen
species
increased
1.66–1.80
fold.
roots
regulate
transport/absorption
many
elements
that
impart
stress
resistance,
Cu,
Mn,
Na
uptake
is
associated
with
metabolism
upregulated
general
exposure,
main
differences
appearing
lipids
lipid-like
molecules,
further
confirming
biofilm
structure.
causes
an
imbalance
energy
supply
oxidative
phosphorylation
generates
important
biomarkers
form
pyrophosphate
dihydrogen
phosphate.
Interestingly,
had
no
effect
on
basic
metabolic
networks
(i.e.,
glycolysis/gluconeogenesis
tricarboxylic
acid
cycle),
good
resistance.
Alfalfa
apparently
multiple
network
systems
resist/overcome
toxicity.
These
findings
provide
scientific
basis
for
improving
tolerance
understanding
mechanism.
Язык: Английский