Diseases of marine fish and shellfish in an age of rapid climate change
iScience,
Год журнала:
2024,
Номер
27(9), С. 110838 - 110838
Опубликована: Авг. 28, 2024
Язык: Английский
The prokaryotic and eukaryotic microbiome of Pacific oyster spat is shaped by ocean warming but not acidification
Applied and Environmental Microbiology,
Год журнала:
2024,
Номер
90(4)
Опубликована: Март 11, 2024
ABSTRACT
Pacific
oysters
(
Magallana
gigas,
a.k.a.
Crassostrea
gigas
),
the
most
widely
farmed
oysters,
are
under
threat
from
climate
change
and
emerging
pathogens.
In
part,
their
resilience
may
be
affected
by
microbiome,
which,
in
turn,
influenced
ocean
warming
acidification.
To
understand
these
impacts,
we
exposed
early-development
oyster
spat
to
different
temperatures
(18°C
24°C)
p
CO
2
levels
(800,
1,600,
2,800
µatm)
a
fully
crossed
design
for
3
weeks.
Under
all
conditions,
microbiome
changed
over
time,
with
large
decrease
relative
abundance
of
potentially
pathogenic
ciliates
Uronema
marinum
)
treatments
time.
The
composition
differed
significantly
temperature,
but
not
acidification,
indicating
that
microbiomes
can
altered
is
resilient
acidification
our
experiments.
Microbial
taxa
implying
adaptive
strategies
ecological
specializations
among
microorganisms.
Additionally,
small
proportion
(~0.2%
total
taxa)
relatively
abundant
microbial
were
core
constituents
(>50%
occurrence
samples)
across
temperatures,
levels,
or
Some
taxa,
including
A4b
bacteria
members
family
Saprospiraceae
phyla
Chloroflexi
(syn.
Chloroflexota
Bacteroidetes
Bacteroidota
respectively,
as
well
protists
genera
Labyrinthula
Aplanochytrium
class
Labyrinthulomycetes
,
Pseudoperkinsus
tapetis
Ichthyosporea
suggesting
they
play
an
important,
albeit
unknown,
role
maintaining
structural
functional
stability
response
These
findings
highlight
flexibility
environmental
changes.
IMPORTANCE
economically
important
species
oyster,
production
depends
on
healthy
spat.
health
productivity
associated
microbiota;
yet,
studies
have
scrutinized
effects
temperature
prokaryotic
eukaryotic
Here,
show
both
and,
first
surprisingly
changes
sensitive
warming.
potential
implications
survival
amid
underscore
need
cascading
productivity.
Язык: Английский
The core microbiome of cultured Pacific oyster spat is affected by age but not mortality
Microbiology Spectrum,
Год журнала:
2024,
Номер
12(10)
Опубликована: Авг. 20, 2024
The
Pacific
oyster
is
the
most
widely
cultured
shellfish
worldwide,
but
production
has
been
affected
by
mortality
events,
including
in
hatcheries
that
supply
seed
for
growers.
Several
pathogens
cause
disease
oysters,
many
cases,
events
cannot
be
attributed
to
a
single
agent
and
appear
multifactorial,
involving
environmental
variables
microbial
interactions.
As
an
organism's
microbiome
can
provide
resilience
against
stressors,
we
investigated
microbiomes
cohorts
of
freshly
settled
spat,
some
which
experienced
notable
mortality.
Deep
sequencing
16S
rRNA
gene
fragments
did
not
show
significant
difference
among
experiencing
different
levels,
revealed
characteristic
core
comprising
74
taxa.
Irrespective
mortality,
relative
abundance
taxa
changed
significantly
as
spat
aged,
yet
remained
distinct
from
community
surrounding
water.
was
dominated
bacteria
families
Язык: Английский
Review of the protist Labyrinhula spp. and its relationship to seagrass disease under the influence of anthropogenic activities
Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Июль 31, 2024
Anthropogenic
activities
are
driving
significant
changes
in
coastal
ecological
environments,
increasingly
spotlighting
microorganisms
associated
with
seagrass
bed
ecosystems.
Язык: Английский
Host-associated microbes mitigate the negative impacts of aquatic pollution
mSystems,
Год журнала:
2024,
Номер
9(10)
Опубликована: Авг. 29, 2024
ABSTRACT
Pollution
can
negatively
impact
aquatic
ecosystems,
aquaculture
operations,
and
recreational
water
quality.
Many
microbes
sequester
or
degrade
pollutants
have
been
utilized
for
bioremediation.
While
planktonic
benthic
are
well-studied,
host-associated
likely
play
an
important
role
in
mitigating
the
negative
impacts
of
pollution
represent
unrealized
source
microbial
potential.
For
example,
organisms
that
thrive
highly
polluted
environments
concentrate
may
microbiomes
adapted
to
these
selective
pressures.
Understanding
microbe–pollutant
interactions
sensitive
valuable
species
could
help
protect
human
well-being
improve
ecosystem
resilience.
Investigating
using
appropriate
experimental
systems
overcoming
methodological
challenges
will
present
novel
opportunities
systems.
In
this
perspective,
we
review
examples
how
mitigate
pollution,
outline
target
study
systems,
discuss
advancing
field,
implications
face
global
changes.
Язык: Английский