bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Фев. 8, 2023
Abstract
Extreme
high
thermal
conditions
on
tropical
rocky
shores
are
challenging
to
the
survival
of
intertidal
ectotherms.
Yet,
many
species
highly
successful
in
these
environments
part
due
their
ability
regulate
intrinsic
mechanisms
associated
with
physiological
stress
and
metabolic
demand.
More
recently,
there
has
been
a
growing
awareness
that
other
extrinsic
mechanisms,
such
as
animal-associated
microbial
communities,
can
also
influence
tolerance
ectotherms
under
stressful
conditions.
However,
extent
which
functionally
linked
overall
adaptive
response
animals
temperature
change
is
poorly
understood.
Here,
we
examined
dynamics
potential
interactions
high-supratidal
oyster,
Isognomon
nucleus
.
We
found
oysters
modulate
internal
biochemistry
(oxidized
PUFA
products,
including
5-F
2t
-IsoP,
10-F
4t
-NeuroP,
13-F
16-F
1t
-PhytoP)
regulation
cope
during
periods
extreme
temperatures
when
emersed.
while
detected
variation
alpha
diversity
(ASV
richness
Shannon
index),
dominant
taxa
functions
across
time,
no
association
was
host
biochemical
profiles.
The
findings
here
suggest
condition
within
independently
responses
microbiome
Together,
may
contribute
zone.
Microbiology Spectrum,
Год журнала:
2024,
Номер
12(10)
Опубликована: Авг. 20, 2024
ABSTRACT
Microorganisms
are
vital
for
the
health
of
marine
invertebrates,
and
their
assembly
is
driven
by
both
deterministic
stochastic
factors
that
regulate
residents
(innate
to
host)
transients
(from
ambient
water).
However,
role
water
microbiota
significance
processes
in
aquatic
hosts
facing
mortality
threats
largely
unknown.
This
study
examines
shifts
during
an
oyster
event
using
amplicon
sequencing
compared
with
those
resident
oysters
disentangle
balance
involved.
Water
temperature
dissolved
oxygen
significantly
shape
microbial
community
a
distinct
monthly
pattern,
Cyanobacteria
blooms
might
exacerbate
mortality.
The
comparative
analysis
communities
revealed
≤
21%
genera
were
shared
between
water,
implying
cannot
easily
transfer
into
oysters.
Furthermore,
these
had
different
functions,
more
involved
promoting
host
digestion
nutrient
acquisition
bacteria
enriched
functions
own
growth
survival.
These
findings
illustrate
may
possess
specific
selection
or
barrier
mechanisms
permit
small
percentage
transients,
controlled
having
minimal
effect
on
mortality,
enter,
whereas
majority
governed
factors.
Consequently,
exhibit
some
plasticity
symbiotic
microbiota,
enabling
them
maintain
homeostasis
adapt
complex
surroundings.
be
mechanism
among
invertebrates
survival
environments.
IMPORTANCE
Pacific
widely
cultured
play
ecological
roles.
summer
hinders
sustainable
farming.
Untangling
causative
task
due
intricate
“interactome”
involving
environmental
factors,
hosts,
pathogens.
Interactions
microorganisms
offer
ideal
avenue
investigating
truth.
We
systematically
investigated
proposed
primarily
independent
Pathogens
mainly
originate
from
members
limited
influence
water.
Additionally,
degraders,
such
as
blooms,
overlooked
contributing
factor
evaluated
weight
greatly
broadened
our
understanding
through
interaction
microbiota.
Journal of Translational Medicine,
Год журнала:
2024,
Номер
22(1)
Опубликована: Окт. 28, 2024
We
aimed
to
determine
the
potential
predictive
value
of
intra-tumoral
microbiome
as
a
marker
response
external
beam
radiation
therapy
(EBRT)
in
cervical
cancer
(CC).
A
prospective
longitudinal
trial
36
CC
patients
receiving
pelvic
radiotherapy
was
designed
investigate
microbial
characteristic
signatures
and
diversity
(alpha
beta)
multiple
sites
(tumor,
vaginal,
gut,
urethral,
oral)
superior
(SR)
inferior
(IR)
groups
by
16S
rRNA
sequencing.
Utilized
least
absolute
shrinkage
selection
operator
(LASSO)
logistic
regression
method
analyze
clinicopathological
factors
that
potentially
influenced
efficacy
EBRT.
LEfSe
analysis
highlighted
features
best
distinguished
categorized
patient
samples.
Selected
parameters
were
validated
with
Spearman
correlation
analysis,
receiver
operating
(ROC)
area
under
curve
(AUC)
Kaplan-Meier
survival
analysis.
Firstly,
our
cohort,
LASSO
revealed
no
association
between
EBRT
efficacy.
Subsequently,
we
employed
sequencing
compare
differences
across
their
correlations
major
factors.
discovered
independent
clinicopathologic
represented
most
direct
reliable
reflection
SR
IR
groups.
found
lower
alpha
tumor
group
identified
relevant
taxa
(Bifidobacteriaceae,
Beijerinckiaceae,
Orbaceae)
associated
patients.
then
conducted
ROC
finding
specific
had
an
AUC
0.831
(95%
CI,
0.667–0.995),
indicating
these
biomarkers
for
predicting
showed
better
prognosis
higher
relative
abundance
Bifidobacteriaceae.
Our
data
suggested
may
play
important
role
sensitivity
offer
novel
Applied Microbiology,
Год журнала:
2023,
Номер
4(1), С. 16 - 26
Опубликована: Дек. 20, 2023
Background:
Planctomycetota
isolation
in
pure
culture
is
still
challenging
with
most
of
the
reported
data
coming
from
molecular-based
methods.
Here,
we
intended
to
isolate
filter-feeder
Pacific
oyster
Magallana
gigas,
extending
search
a
not
yet
explored
natural
reservoir
and
characterize
their
antimicrobial
resistance
phenotype.
Methods:
Oyster
samples
different
supermarkets
farm
producer
were
subject
selective
medium.
Inoculation
was
performed
shell
biofilm
after
an
enrichment
edible
content.
Results:
isolates
(n
=
65)
only
obtained
four
species
identified:
Rhodopirellula
baltica
62),
rubra
1),
heiligendammensis
1)
Gimesia
chilikensis
1).
This
study
reports
first
association
members
oysters
description
R.
Portugal.
Moreover,
rubra,
originally
identified
Portugal,
isolated
French
origin.
Antibiotic
susceptibility
testing,
conducted
strains
belonging
two
never
assayed
before
revealed
multidrug
phenotypes
bacteria
showing
several
classes
clinically
relevant
antibiotics
(e.g.,
β-lactams
aminoglycosides).
Conclusion:
The
ecological
role
impact
on
holobiont
and,
ultimately,
public
health,
under
One
Health
concept,
discussed.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Фев. 8, 2023
Abstract
Extreme
high
thermal
conditions
on
tropical
rocky
shores
are
challenging
to
the
survival
of
intertidal
ectotherms.
Yet,
many
species
highly
successful
in
these
environments
part
due
their
ability
regulate
intrinsic
mechanisms
associated
with
physiological
stress
and
metabolic
demand.
More
recently,
there
has
been
a
growing
awareness
that
other
extrinsic
mechanisms,
such
as
animal-associated
microbial
communities,
can
also
influence
tolerance
ectotherms
under
stressful
conditions.
However,
extent
which
functionally
linked
overall
adaptive
response
animals
temperature
change
is
poorly
understood.
Here,
we
examined
dynamics
potential
interactions
high-supratidal
oyster,
Isognomon
nucleus
.
We
found
oysters
modulate
internal
biochemistry
(oxidized
PUFA
products,
including
5-F
2t
-IsoP,
10-F
4t
-NeuroP,
13-F
16-F
1t
-PhytoP)
regulation
cope
during
periods
extreme
temperatures
when
emersed.
while
detected
variation
alpha
diversity
(ASV
richness
Shannon
index),
dominant
taxa
functions
across
time,
no
association
was
host
biochemical
profiles.
The
findings
here
suggest
condition
within
independently
responses
microbiome
Together,
may
contribute
zone.