The
work
of
combating
desertification
and
recovering
vegetation
is
a
main
contributor
to
solving
global
ecological
problems.
Microbially
induced
calcium
carbonate
precipitation
(MICP)
natural
widespread
phenomenon
in
the
biological
world
that
has
been
released
as
green
efficient
approach
address
series
environmental
engineering
issues.
However,
application
field
experiments
lacking
routes
MICP
regarding
degraded
dryland
restoration
have
not
explored.
Therefore,
we
designed
different
concentrations
investigated
wind
erosion
resistance
soil
characteristics
by
mixed
methodology
laboratory
tests.
Structural
equation
model
was
used
summarize
MICP’s
route
control.
Our
objective
evaluate
sand
fixation
efficiency
clarify
relationship
between
aeolian
anti-erodibility.
study
demonstrated
(1)
made
cement,
higher
hardness,
improved
water-retaining
properties
changed
biochemical
characteristics.
(2)
Compared
with
CK,
25%,
50%
75%
treatment
reduced
loss
34.93%,
31.62%
51.93%
70
days,
respectively,
decreased
69.09%~77.27%
treatments
at
highest
speed.
(3)
performed
best
on
gale
events
long-term
resistance.
(4)
Meteorological
factors
were
prominent
loadings
infected
CK
25%
instead
physical
treatments.
It
confirmed
consolidated
crust
formation
significantly
for
desertification.
Microbial
activity,
route,
changes
action
erosion,
meteorological
from
direct
indirect
after
treatment.
This
information
expected
challenges
overcome
disadvantages
eventually
contribute
technology
exploration
using
microbial
approach.
Applied Soil Ecology,
Год журнала:
2024,
Номер
199, С. 105412 - 105412
Опубликована: Апрель 18, 2024
Soil
microbiota
plays
a
fundamental
role
in
nutrient
cycles
and
plant
fitness.
However,
the
response
of
bacterial
fungal
communities
interacting
with
plants
to
an
increase
water
regime
natural
ecosystems
has
yet
be
extensively
studied.
To
address
this
matter,
we
studied
rhizospheric
root
endophytic
microbial
simulated
intense
precipitation
desert
environment.
We
used
amplicon
sequencing
identify
(16S)
(ITS)
Haloxylon
salicornicum
(Moq)
Bunge
ex
Boiss.,
pivotal
species
high
potential
for
land
restauration.
Bacterial
community
composition
included
mostly
Actinobacteriota
roots
Chloroflexi
rhizospheres,
whereas
were
represented
by
Ascomycota.
The
decomposition
beta
diversity
revealed
significant
share
i)
turnover
bacteria
between
compartments,
ii)
nestedness
fungi
according
iii)
both
rhizosphere
watering.
Differential
abundances
analyses
watering
conditions
identified
respectively
29
37
differentially
abundant
families,
7
6
families
roots.
Watering
induced
rapid
from
little
characterized
potentially
involved
recycling,
such
as
rhizobia
dark
septate
endophytes.
These
results
provided
evidence
rare
modifying
one
species.
Moreover,
taxa
crucial
health
environments
endophytes
Planctomycetota
pioneer
colonizing
freshly
emitted
Collectively,
our
help
improve
understanding
availability,
may
guide
future
research
on
Microbiology Spectrum,
Год журнала:
2024,
Номер
12(6)
Опубликована: Апрель 30, 2024
The
Atacama
Desert
is
the
oldest
and
driest
desert
on
Earth,
encompassing
great
temperature
variations,
high
ultraviolet
radiation,
drought,
salinity,
making
it
ideal
for
studying
limits
of
life
resistance
strategies.
It
also
known
harboring
a
biodiversity
adapted
forms.
While
desertification
increasing
as
result
climate
change
human
activities,
necessary
to
optimize
soil
water
usage,
where
stress-resistant
crops
are
possible
solutions.
As
many
studies
have
revealed
impact
rhizobiome
plant
growth
efficiency
abiotic
stress,
we
set
up
explore
rhizospheric
soils
Suaeda
foliosa
Distichlis
spicata
plants.
By
culturing
these
using
16S
rRNA
amplicon
sequencing,
address
community
taxonomy
composition
dynamics,
stability
through
time,
ability
promote
lettuce
growth.
communities
were
dominated
by
families
Pseudomonadaceae,
Bacillaceae,
Planococcaceae
S.
Porphyromonadaceae
Haloferacaceae
D.
spicata.
Nonetheless,
cultures
completely
Enterobacteriaceae
family
(up
98%).
Effectively,
plants
supplemented
with
showed
greater
size
biomass
accumulation.
We
identified
12
candidates
that
could
be
responsible
outcomes,
which
5
(Enterococcus,
Pseudomonas,
Klebsiella,
Paenisporosarcina,
Ammoniphilus)
part
built
co-occurrence
network.
aim
contribute
efforts
characterize
microbial
key
plant's
survival
in
extreme
environments
source
consortia
promotion
traits
aimed
at
agricultural
applications.IMPORTANCEThe
current
scenario
represents
series
incoming
challenges
all
living
organisms.
population
grows
rapidly,
so
does
rising
demand
food
natural
resources;
thus,
make
agriculture
more
efficient
optimizing
thus
ensuring
future
supplies.
Particularly,
(northern
Chile)
considered
most
arid
place
Earth
consequence
geological
climatic
characteristics,
such
naturally
low
precipitation
patterns
temperatures,
makes
an
carry
out
research
seeks
aid
conditions
predicted
resemble
scenarios.
Our
main
interest
lies
utilizing
microorganism
from
thriving
under
conditions,
aiming
growth,
improve
crops,
render
"unsuitable"
farmable.
Plants,
Год журнала:
2024,
Номер
13(11), С. 1457 - 1457
Опубликована: Май 24, 2024
Rodents,
such
as
those
that
feed
on
plants
and
nest
in
plant
roots,
can
significantly
affect
the
growth
development
of
desert
plants.
The
aim
this
study
was
to
investigate
effects
Rhombomys
opimus
disturbance
photosynthetic
characteristics
nutrient
status
Haloxylon
ammodendron
at
different
stages
Gurbantunggut
Desert.
great
gerbil
H.
were
investigated
by
measuring
gas
exchange
parameters,
instantaneous
water
use
efficiency,
chlorophyll
fluorescence
parameters
ages
(young,
middle,
adult)
under
gerbils.
soil
nutrients
assimilated
branches
rhizosphere
tracked
reveal
relationship
between
content
disturbance.
results
showed
decreased
organic
carbon
adult
increased
total
nitrogen
potassium
contents
each
stage.
net
rate
efficiency
stage,
maximum
photochemical
non-photochemical
quenching
young
decreased.
However,
actual
middle
increased.
It
concluded
gerbils
capacity
plant.
This
revealed
Desert
do
not
have
a
simple
predation
relationship.
laid
foundation
for
moderate
threshold
better
mutually
beneficial
two.
Global and Planetary Change,
Год журнала:
2024,
Номер
238, С. 104463 - 104463
Опубликована: Май 13, 2024
Life
found
various
ways
to
thrive
in
hostile
desert
environments.
Common
adaptation
mechanisms
are
protection
against
desiccation
and
UV
radiation
biofilms
biocrusts
as
well
the
hypolithic
endolithic
colonization
of
rocks.
One
those
regions
is
Atacama
Desert
Northern
Chile
with
its
hyperarid
core,
counted
among
most
arid
places
on
Earth.
Besides
aridity,
life
faces
severe
restrictions
this
surrounding,
e.g.
extremely
high
radiation,
scarce
nutrient
supply,
immense
salt
concentrations.
Still,
microbial
communities
soil
organic
matter
crucial
for
stability
soils
surface
sediments
ecosystems.
Combining
molecular
mass
spectrometry
lipid
biomarkers,
scanning
electron
microscopy,
nuclear
magnetic
resonance
spectroscopy,
we
individually
investigated
two
factors
that
particular
importance
dryland
landscapes
now
future:
1)
We
studied
biogeochemical
traces
(organic
remnants)
along
an
aridity
gradient
regard
possible
decomposition
and/or
sequestration
compounds.
2)
interaction
lithobiontic
mineral
special
sediment
structures
different
areas
Desert:
region
Salar
Grande,
Pisagua,
Quebrada
da
Aroma.
analyzed
halite-
calcium
sulfate-dominated
evaporitic
crusts
without
visible
colonization.
Organic
were
present
all
samples.
Following
de
Aroma
from
annual
precipitation
about
20
mm
core
approx.
2
mm,
a
decrease
functionalized
compounds
plant-derived
biomarkers
(long-chain
fatty
acids,
sterols)
increase
aromatic
hydrocarbons,
indicating
strongly
decomposed
remnants
plants
microorganisms.
The
investigation
revealed
tight
interactions
microorganisms
substrate.
Indications
recent
bacterial
activity
ubiquitous
(e.g.
short-chain
membrane
carbohydrates
extracellular
polymeric
substances
(EPS)).
Scanning
microscopy
especially
EPS
within
evaporites
seems
biochemically
stabilize
aggregates
by
agglutination.
Moreover,
fungal
showed
fungi
parts
lichen
not
only
at
physical
crusts,
but
form
widespread
networks
thereby
contribute
significantly
stabilization
erosion
protection.
