Frontiers in Microbiology,
Год журнала:
2024,
Номер
15
Опубликована: Ноя. 6, 2024
The
objectives
of
this
study
were
to
evaluate
the
potential
using
thermophilic
aerobic
digestion
(TAD)
hydrolyze
aquaculture
sludge,
and
investigate
hydrolysis
efficiency
changes
in
microbial
community
structure
during
TAD
at
0,
15,
30
practical
salinity
units
(psu).
As
progressed,
soluble
organic
matter
concentrations
all
reactors
increased
their
maximum
values
6
h.
h
decreased
as
increased:
2.42%
0
psu,
1.78%
15
1.04%
psu.
compositions
genus
level
prominently
differed
relative
abundances
dominant
bacteria
between
psu
abundance
genera
Iodidimonas
Tepidiphilus
significantly
increased.
Increase
which
sludge
was
conducted
altered
structure,
turn
hydrolysis.
Microorganisms,
Год журнала:
2025,
Номер
13(4), С. 825 - 825
Опубликована: Апрель 5, 2025
Bivalve
microbiota
play
a
vital
role
in
host
health,
supporting
nutrient
processing,
immunity,
and
disease
resistance.
However,
the
increasing
hypoxia
Chilean
coastal
waters,
caused
by
climate
change
eutrophication,
threatens
to
disrupt
this
microbial
balance,
potentially
promoting
pathogens
impairing
essential
functions.
Mytilus
chilensis
is
vulnerable
hypoxia-reoxygenation
cycles,
yet
effects
on
its
remain
poorly
understood.
This
study
investigates
impact
of
structure
functional
potential
communities
residing
gills
digestive
glands
M.
chilensis.
Employing
full-length
16S
rRNA
gene
sequencing,
we
explored
hypoxia’s
diversity
capacity.
Our
results
revealed
significant
alterations
composition,
with
shift
towards
facultative
anaerobes
thriving
low
oxygen
environments.
Notably,
there
was
decrease
dominant
bacterial
taxa
such
as
Rhodobacterales,
while
opportunistic
Vibrio
Aeromonas
exhibited
increased
abundance.
Functional
analysis
indicated
decline
critical
functions
associated
metabolism
immune
support,
jeopardizing
health
survival
host.
sheds
light
intricate
interactions
between
host-associated
environmental
stressors,
underlining
importance
managing
face
aquaculture
practices.
Toxics,
Год журнала:
2025,
Номер
13(5), С. 374 - 374
Опубликована: Май 5, 2025
Mussels
are
highly
efficient
filter
feeders,
playing
a
crucial
role
in
managing
eutrophication
and
assessing
pollution.
Although
research
on
nanoplastic
(NP)
toxicity
marine
organisms
is
expanding,
studies
freshwater
species
remain
limited
despite
ecosystems
being
disproportionately
biodiverse
vulnerable
to
pollutants.
Here,
we
quantified
the
effects
of
polystyrene
nanoplastics
(PS-NPs,
50
nm)
at
concentrations
0,
2,
20,
200
μg/L
different
growth
stages
mussel
Cristaria
plicata.
After
45-day
exposure,
PS-NPs
≥
20
damaged
intestinal
epithelial
cilia
both
age
groups.
Exposure
significantly
increased
malondialdehyde
levels
decreased
superoxide
dismutase
activity
groups,
with
adults
showing
significant
rise
total
protein
content
juveniles
exhibiting
marked
increases
respiratory
ammonia
excretion
rates.
Additionally,
PS-NP
exposure
altered
relative
abundance
gut
microbial
phyla,
including
Proteobacteria,
Firmicutes,
Verrucomicrobiota,
Bacteroidota,
Fusobacteriota
also
affected
adults.
Juveniles
were
more
sensitive
physiological
changes,
whereas
exhibited
greater
microbiota
shifts
response
exposure.
Therefore,
this
study
provides
new
insights
into
stage-specific
integrity
biochemical
health
mussels,
underscoring
need
for
targeted
management
strategies
protect
ecosystems.
Environmental Science Nano,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
The
findings
showed
that
nano-TiO
2
and
warming
can
cause
significant
impacts
on
crab's
health.
Crabs
under
direct
combined
exposures
tended
to
preserve
energy.
However,
indirect
exposure,
they
use
more
