Microorganisms,
Год журнала:
2024,
Номер
12(10), С. 1974 - 1974
Опубликована: Сен. 29, 2024
Hibernation
is
an
energy-saving
and
adaptive
strategy
adopted
by
a
diverse
array
of
animals,
rarely
including
warm-climate
species,
to
survive
in
the
harsh
winter
environment.
Here,
we
collected
large-intestinal
microbial
samples
from
two
species
lizards,
one
(the
Reeves'
butterfly
lizard
Frontiers in Microbiology,
Год журнала:
2025,
Номер
16
Опубликована: Май 7, 2025
Food
habits
are
closely
associated
with
the
gut
microbiota
of
herbivorous
animals;
however,
limited
knowledge
exists
regarding
arid-adapted
rodents.
This
study
investigates
relationship
between
and
dietary
composition
to
offer
a
scientific
basis
for
comprehending
ecological
adaptation
strategies
grassland
Cecal
contents
Spermophilus
alashanicus,
S.
dauricus,
Meriones
unguiculatus
were
collected
analyzed
by
using
16S
rRNA
amplicon
sequencing
DNA
metabarcoding
techniques
determine
structure
microbial
communities
composition.
The
results
showed
that
alashanicus
presented
significantly
higher
richness
diversity
than
dauricus
M.
unguiculatus.
dominant
bacterial
genera
in
similar,
suggesting
their
common
genetic
backgrounds
might
influence
colonization
symbiosis
microbiota.
three
species
consumed
both
plant-based
animal-based
foods
but
differed
preferences.
displayed
food
consumption
compared
other
two
species.
Correlation
analysis
diet
indicated
enhanced
In
contrast,
decreased
diversity.
finding
suggests
potential
link
host's
background,
composition,
Animals,
Год журнала:
2025,
Номер
15(3), С. 403 - 403
Опубликована: Янв. 31, 2025
Hibernation
is
a
crucial
adaptive
strategy
for
amphibians,
facilitating
survival
in
harsh
environmental
conditions
by
lowering
metabolic
rates
and
reducing
energy
use.
This
study
employed
GC-MS
LC-MS
metabolomics
to
systematically
analyze
the
serum
metabolome
of
Bufo
gargarizans
during
hibernation,
aiming
uncover
its
adaptation
mechanisms.
A
total
136
differentially
expressed
metabolites
(DEMs)
were
identified,
which
115
downregulated
21
upregulated,
mainly
involved
amino
acid,
carbohydrate,
lipid
metabolism.
KEGG
pathway
analysis
showed
that
most
pathways
inhibited
hibernating
group,
underscoring
significant
reduction
overall
activity.
Notably,
while
acid
carbohydrate
metabolism
significantly
reduced,
exhibited
distinctive
response.
Enhanced
β-oxidation
fatty
acids,
including
palmitoleic
arachidonic
sodium
caprylate,
suggests
shift
toward
lipid-based
utilization.
The
key
like
fumaric
succinic
TCA
cycle
further
supports
hypothesis
reduced
requirements.
These
results
enhance
our
current
understanding
amphibian
hibernation
metabolisms
provide
targeted
approach
future
mechanistic
investigations.
Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Апрель 15, 2024
Environmental
temperature
affects
the
composition,
structure,
and
function
of
gut
microbial
communities
in
host
animals.
To
elucidate
role
microbiota
thermal
adaptation,
we
designed
a
2
species
×
3
temperatures
experiment,
whereby
acclimated
adult
males
two
agamid
lizard
(warm-climate
Leiolepis
reevesii
cold-climate
Phrynocephalus
przewalskii
)
to
20,
28,
36°C
for
weeks
then
collected
their
fecal
small-intestinal
samples
analyze
compare
using
16S
rRNA
gene
amplicon
sequencing
technology.
The
displayed
more
pronounced
interspecific
differences
community
than
occurring
thermally
different
regions.
response
increase
or
decrease
differed
between
species,
with
bacterial
taxa
affected
by
acclimation
L.
P.
przewalskii.
Both
warm-climate
particular,
could
cope
change
adjusting
relative
abundance
functional
categories
associated
metabolism
environmental
information
processing.
Functional
genes
carbohydrate
were
enhanced
,
suggesting
contribution
adaptation
.
Taken
together,
our
results
validate
hypotheses
tested,
which
one
suggests
that
should
help
lizards
adapt
environments
they
live,
other
be
sensitive
lizards.
Microorganisms,
Год журнала:
2024,
Номер
12(8), С. 1674 - 1674
Опубликована: Авг. 14, 2024
Dietary
fiber
(DF)
is
an
important
nutrient
component
in
pig’s
diet
that
remarkably
influences
their
growth
and
slaughter
performance.
The
ability
of
pigs
to
digest
DF
depends
on
the
microbial
composition
intestinal
tract,
particularly
hindgut.
However,
studies
how
alters
performance
by
shaping
gut
metabolites
are
still
limited.
Therefore,
this
study
aimed
investigate
effects
composition,
functions,
metabolites,
ultimately
altering
host
using
Durco
×
Bamei
crossbred
supplemented
with
0%,
10%,
17%,
24%
broad
bean
silage
basic
diet.
We
found
final
weight,
average
daily
gain,
fat,
lean
meat
weight
significantly
decreased
increasing
DF.
Pigs
lowest
rate
fat
were
observed
fiber-supplemented
group.
Gut
communities
highest
alpha
diversity
formed
17%
relative
abundance
fiber-degrading
bacteria,
bile
acid,
succinate-producing
including
Prevotella
sp.,
Bacteroides
Ruminococcus
Parabacteroides
functional
pathways,
butanoate
metabolism
tricarboxylic
acid
[TCA]
cycle,
increased
high-fiber
groups.
concentrations
several
acids
groups,
whereas
succinate
long-chain
fatty
increased.
Our
results
indicate
a
may
alter
modulating
metabolite
pathways
succinate.
Animal Models and Experimental Medicine,
Год журнала:
2024,
Номер
7(2), С. 98 - 105
Опубликована: Апрель 1, 2024
Abstract
Background
Gut
microbiota
exert
an
immense
effect
on
host
health
and
environmental
adaptation.
Furthermore,
the
composition
structure
of
gut
are
determined
by
environment
genetic
factors.
However,
relative
contribution
factors
toward
shaping
has
been
poorly
understood.
Methods
In
this
study,
we
characterized
fecal
microbial
communities
closely
related
voles
Neodon
fuscus
,
Lasiopodomys
brandtii
L.
mandarinus
after
caged
feeding
in
laboratory
for
6
months,
through
high‐throughput
sequencing
bioinformatics
analysis.
Results
The
results
pairwise
comparisons
N.
vs.
revealed
significant
differences
bacterial
diversity
domestication.
While
991
same
operational
taxonomic
units
(OTUs)
were
shared
three
voles,
there
362,
291,
303
species‐specific
OTUs
respectively.
abundances
Proteobacteria
Prevotella
which
reported
to
be
enriched
high‐altitude
populations,
significantly
higher
than
low‐altitude
Firmicutes,
produce
various
digestive
enzymes
energy
metabolism,
Spirochaetes,
can
degrade
cellulose,
found
abundance
subterranean
that
dwells
earth
surface.
Conclusion
Our
findings
showed
some
components
still
maintained
dominance
even
when
different
species
reared
under
conditions,
suggesting
these
bacteria
substantially
influenced
Animals,
Год журнала:
2024,
Номер
14(13), С. 2004 - 2004
Опубликована: Июль 7, 2024
Amphibians
and
reptiles
play
a
critical
role
in
the
evolution
of
Tetrapoda,
showcasing
significant
diversity
terms
their
genetics,
species,
morphology,
life
history
traits,
evolutionary
functions
[...]
Animals,
Год журнала:
2024,
Номер
14(16), С. 2388 - 2388
Опубликована: Авг. 17, 2024
Investigating
the
physiological
and
biochemical
changes
of
ectothermic
species
before
entering
hibernation
would
contribute
to
understanding
how
they
adapt
low-temperature
environments.
Here,
red-eared
slider
turtle
(
Journal of Fungi,
Год журнала:
2023,
Номер
9(10), С. 1032 - 1032
Опубликована: Окт. 20, 2023
Although
fungi
occupy
only
a
small
proportion
of
the
microbial
community
in
intestinal
tract
mammals,
they
play
important
roles
host
fat
accumulation,
nutrition
metabolism,
metabolic
health,
and
immune
development.
Here,
we
investigated
dynamics
assembly
gut
fungal
communities
plateau
pikas
inhabiting
six
altitudinal
gradients
across
warm
cold
seasons.
We
found
that
relative
abundances
Podospora
Sporormiella
significantly
decreased
with
season,
whereas
abundance
Sarocladium
increased.
Alpha
diversity
increasing
gradient
Distance-decay
analysis
showed
similarities
were
negatively
correlated
elevation.
The
co-occurrence
network
complexity
along
as
total
number
nodes,
edges,
degree
nodes
decreased.
Both
null
neutral
model
analyses
stochastic
or
processes
dominated
both
seasons
ecological
drift
was
main
process
explaining
variation
different
pikas.
Homogeneous
selection
played
weak
role
structuring
during
season.
Collectively,
these
results
expand
our
understanding
distribution
patterns
elucidate
mechanisms
maintain
ecosystems
mammals.