Geophysical Research Letters,
Год журнала:
2024,
Номер
52(1)
Опубликована: Дек. 30, 2024
Abstract
Taklimakan
dust
is
known
to
be
transported
over
long
distances
the
Tibetan
Plateau,
significantly
impacting
its
climates
and
ecosystems.
However,
information
on
how
aerosols
affect
airborne
microorganisms
still
lacking.
In
summer
of
2019,
we
simultaneously
collected
air
samples
from
Plateau
(Ali)
Desert
(Minfeng
Tazhong)
analyzed
them
using
high‐throughput
DNA
sequencing
techniques.
We
found
that
diversity
bacteria
decreased
by
42.2%
during
events.
contributed
85.4%
±
2.1%
Plateau.
Moreover,
potential
pathogens
bacterial
ice
nuclei
(IN)
in
increased
16.4%
73.8%,
respectively.
Our
study
provides
novel
insights
into
impact
dust‐coated
climate
ecosystem
across
Agronomy,
Год журнала:
2025,
Номер
15(1), С. 192 - 192
Опубликована: Янв. 15, 2025
Drought
stress
is
one
of
the
major
adversity
stresses
affecting
soybean
(Glycine
max
[L.]
Merr.)
yield.
Late
embryogenesis
abundant
protein
(LEA
protein)
a
large
family
proteins
widely
distributed
in
various
types
organisms,
and
this
class
plays
an
important
role
protecting
proteins,
membrane
lipids,
lipids
inside
cell.
The
GmPM35
gene
member
LEA_6
subfamily.
expression
was
significantly
increased
after
drought
soybeans.
A
subcellular
localization
assay
confirmed
that
acts
on
cell
membrane.
Against
wild-type
Arabidopsis
thaliana,
we
found
lines
overexpressing
were
more
drought-tolerant
at
germination
seedling
stages
under
stress.
To
further
investigate
tolerance
function
soybeans,
nine
overexpression
T3
generation
two
editing
obtained
by
Agrobacterium-mediated
method
using
strain
(JN28)
as
receptor.
Germination
rate,
root
length,
chlorophyll
(CHL)
content,
Proline
(Pro)
malondialdehyde
(MDA)
superoxide
anion
(O2−)
hydrogen
peroxide
(H2O2)
(NBT,
DAB)
staining,
activities
antioxidant
enzymes
(CAT,
SOD,
POD),
photosynthetic
physiological
indexes
three
different
strains
measured
analyzed
before
Combined
with
results
rehydration
experiments
biochemical
indices,
protected
dismutase
(SOD),
catalase
(CAT),
peroxidase
(POD)
average
34.28%,
26.12%,
30.01%,
respectively,
plants
compared
Under
conditions,
showed
increase
76.81%
photosynthesis
rate
(Pn),
39.8%
transpiration
(Tr),
126%
stomatal
conductance
(Gs),
47.71%
intercellular
CO2
concentration
(Ci),
26.44%
instantaneous
water
use
efficiency
(WUEi).
improvement
these
helped
to
reduce
accumulation
reactive
oxygen
species
(ROS)
plants.
In
addition,
stress,
MDA
content
reduced
18.8%,
Pro
60.14%
gene,
changes
indicated
had
stronger
osmoregulatory
capacities
response
summary,
experiment
demonstrated
can
better
tolerate
maintain
normal
functions.
Journal of Animal Ecology,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 13, 2025
Abstract
Human
activities
have
converted
mature
forests
into
mosaics
of
successional
vegetation
and
chronically
disturbed
habitats,
altering
the
patterns
population
distribution,
foraging
ecology
thus,
flow
matter
nutrients
through
ecosystems.
Although
effects
human
disturbance
are
mostly
harmful,
hyperabundant
native
generalist
species
can
emerge
increase
their
populations
under
disturbance,
such
as
leaf‐cutting
ants
(LCA),
prominent
herbivores
that
considered
ecosystem
engineers.
Here,
we
examined
response
two
LCA
Caatinga
dry
forest
(
Acromyrmex
balzani
A.
rugosus
)
to
increasing
levels
chronic
anthropogenic
aridity,
assessed
activity,
biomass
harvested
by
colonies.
We
found
colony
densities
increased
at
more
varying
considerably
from
0
81
nests/ha,
but
aridity
had
no
effect.
The
exhibited
markedly
different
(44.66
±
28.76
294.6
260.53
daily),
with
rate
in
arid
conditions
for
a
smaller
nests,
disturbance.
Biomass
consumption
varied
distinctly
between
species,
ranging
4.81
g
(7.24
kg
ha.year
−1
,
5.6
74
(174.39
).
Furthermore,
there
was
effect
on
harvesting
individual
However,
considerable
colonies
plots
(i.e.
accounting
densities).
Moreover,
foraged
upon
nutrient‐rich
material
plant
containing
higher
concentrations
N,
Ca,
S,
Sr,
Fe
Mn,
well
lower
C:N
ratio
these
areas.
Our
results
suggest
(1)
achieve
larger
though
not
directly
associated
(2)
operate
key
herbivore
able
fit
harvesting/diet
entire
environmental
gradient
forage
complementarily
(monocot
vs.
dicot)
(3)
reallocate
expressive
amount
biomass,
resulting
temporary
nutrient
sinks
potential
impacts
resilience.
