Aquaculture,
Journal Year:
2023,
Volume and Issue:
572, P. 739516 - 739516
Published: March 28, 2023
Asian
seabass
(Lates
calcarifer)
is
a
major
aquaculture
food
fish
species
in
Singapore.
Farming
of
this
increasingly
threatened
by
frequent
outbreaks
infectious
diseases,
resulting
mortality
exceeding
50–70%.
In
study,
we
investigated
the
comparative
gut
bacterial
microbiota
using
16S
rRNA
metasequencing
between
asymptomatic
and
diseased
juvenile
collected
during
disease
outbreak
soon
after
stocking.
Mild
to
severe
chronic
granulomatous
enteritis
was
observed
histopathologically
both
fish.
Kidneys
tested
PCR
positive
for
'big
belly'
novel
Vibrio
spp.,
Streptococcus
iniae
harveyi.
These
bacteria
were
also
readily
detected
water
samples
corresponding
tanks
sampled
from.
Potentially
beneficial
microbes
that
promote
health
such
as
Firmicutes,
Bacteroidota
Actinobacteriota
dominant
phyla
intestinal
Moreover,
with
probiotic
potential
Lactobacillus
only
presented
fish,
Weissella
unique
prevalent
(47.59%)
recovery
phase
outbreak,
making
them
candidate
biomarkers
monitoring
status
L.
calcarifer.
Conversely,
showed
reduced
diversity
their
microbiome,
high
abundance
members
phylum
Proteobacteria.
most
genus
(87.3%)
findings
provide
baseline
study
understanding
changes
newly
stocked
mixed
infection,
biomarker
assisted
monitoring,
future
host-derived
probiotics
screening
Micro,
Journal Year:
2023,
Volume and Issue:
3(1), P. 320 - 337
Published: March 2, 2023
Although
plastic
is
ubiquitous
in
marine
systems,
our
current
knowledge
of
its
transport
limited.
Recent
studies
suggest
size-selective
removal
small
particles
(<5
mm)
from
the
ocean
surface
as
a
result
formation
biofilm
(the
“plastisphere”)
on
microplastic
particle
(MP)
surface.
This
localized
microenvironment
can
isolate
microcosm
adjacent
aqueous
medium,
and
thus
protect
component
alien
species
surrounding
physico-chemical
conditions.
Apart
resulting
specific
conditions
for
transfer
through
environment,
plastisphere
impact
MP
hydrodynamics
cause
MPs
to
move
water
column,
initially
sinking.
The
importance
this
phenomenon
has
not
been
previously
considered
these
particles.
size-dependent
vertical
movement
column
determines
their
distribution,
which
will
vary
with
time
exposure
colonization.
Some
organisms
have
plastic-degrading
activities,
could
be
harnessed
depollution
strategies.
article
seeks
increase
understanding
role
biofilms
biological
dynamics
diffusion
microparticles.
Food Science & Nutrition,
Journal Year:
2023,
Volume and Issue:
11(8), P. 4472 - 4484
Published: June 6, 2023
Functional
foods
are
gaining
significant
research
attention
of
researchers
due
to
their
health-endorsing
properties
bioactive
components
either
living
cells
(probiotics)
or
nonviable
(prebiotics).
The
term
"postbiotic"
specifies
the
soluble
substances,
such
as
enzymes,
peptides,
teichoic
acids,
muropeptides
derived
from
peptidoglycans,
polysaccharides,
cell
surface
proteins,
and
organic
that
secreted
by
bacteria
released
after
bacterial
lysis.
Due
various
signaling
molecules
which
may
have
antioxidant,
immunomodulatory,
antiinflammatory,
antihypertensive,
antiproliferative
activities,
postbiotics
offer
great
potential
be
used
in
pharmaceutical,
food,
nutraceutical
industries,
promote
health
ailment
prevention.
This
recent
review
is
a
landmark
information
relevant
production
along
with
salient
features
use
fields
ranging
food
immunomodulation
selective
effective
therapy.
It
also
puts
forward
concept
way
more
than
probiotics
veterinary,
well
medical
field
ultimately
helps
reducing
disease
burden
human
health.
Comparative Immunology Reports,
Journal Year:
2024,
Volume and Issue:
6, P. 200126 - 200126
Published: Jan. 12, 2024
The
study
aimed
to
address
the
recurring
outbreaks
of
microbial
diseases
in
shrimp
aquaculture
Bangladesh
focused
on
utilization
bacteriophages
and
non-pathogenic
Vibrio.
were
isolated
from
sewage
water
sample
collected
farm,
hatchery,
JUST
campus.
tested
for
their
ability
infect
different
Vibrio
strains
order
assess
bacteriolytic
activity.
Non-pathogenic
obtained
suspected
diseased
isolates
south-western
region
through
PCR
amplification.
In
laboratory
tests,
successfully
infected
91
%
(19
out
21
strains).
experimental
unit,
treated
with
phage
prophylaxis
treatment
demonstrated
notable
protection
against
AHPND
was
able
survive
a
deadly
bacterial
challenge.
A
total
35
tested,
amplification
revealed
6
strains.
field
trials,
cultured
applied
at
concentration
1.5×106
PFU/ml,
while
5×105
CFU/ml.
trials
showed
increased
infections
no
severe
deaths
during
adaptive
research
phase.
analyzed
morphologically
muscle
gut
ratio
greater
than
4:1.
No
abnormal
deformities
observed
appendages
or
overall
body,
suggesting
health
well-being.
bacteriological
tests
conducted
samples
(application
Vibrio)
that
18
them
bacteria,
primarily
cholerae,
parahaemolyticus,
other
species.
Despite
this,
did
not
lead
disease
outbreak;
negative
results
AHPND,
White
Spot
Syndrome
Virus
(WSSV),
Enterocytozoon
hepatopenaei
(EHP).
highlight
potential
using
as
sustainable
solution
preventing
controlling
aquaculture.
Furthermore,
this
will
contribute
valuable
insights
into
development
alternative
strategies
combat
antibiotic
resistance
promote
growth
industry
Bangladesh.
Ecotoxicology and Environmental Safety,
Journal Year:
2024,
Volume and Issue:
273, P. 116146 - 116146
Published: Feb. 26, 2024
Filter-feeding
bivalves
could
accumulate
paralytic
shellfish
toxins
(PSTs)
produced
by
harmful
dinoflagellates
through
diet.
Despite
that
are
resistant
to
these
neurotoxins
due
possessing
PST-resistant
sodium
channel,
exposure
PSTs-producing
impair
bivalve
survival.
We
hypothesized
ingesting
PSTs-PSTs-producing
may
influence
the
gut
microbiota,
and
then
health
of
bivalves.
To
test
this
idea,
we
compared
microbiota
scallop
Patinopecten
yessoensis,
after
feeding
with
PST-producing
or
non-toxic
dinoflagellates.
Exposure
resulted
in
a
decline
microbial
diversity
disturbance
community
structure,
accompanied
significant
increase
abundance
richness
pathogenic
bacteria,
represented
Vibrio.
Moreover,
network
analysis
demonstrated
extensive
positive
correlations
between
bacteria
abundances
PSTs
concentrations
digestive
glands
scallops.
Furthermore,
isolation
dominant
Vibrio
strain
its
genomic
revealed
variety
virulence
factors,
including
tolC
outer
membrane
exporter,
which
were
expressed
microbiota.
Finally,
infection
experiment
mortality
caused
isolated
strain;
further,
pathogenicity
was
attenuated
mutation
gene.
Together,
findings
affect
via
direct
taxa-specific
interactions
opportunistic
pathogens,
proliferate
transition
from
seawater
environment.
The
present
study
has
novel
mechanisms
towards
deciphering
puzzles
environmental
disturbances-caused
death
an
important
aquaculture
species.
Aquaculture,
Journal Year:
2022,
Volume and Issue:
561, P. 738628 - 738628
Published: July 17, 2022
Vibrio
sp.
has
caused
several
foodborne
outbreaks
of
gastroenteritis
around
the
world.
Given
mounting
evidence
that
poses
a
significant
public
health
threat,
and
initiating
effective
treatment
for
infection
requires
rapid
identification
causative
organism,
there
is
need
reliable,
cost-effective
point
care
diagnostic
testing.
Conventional
detection
techniques
are
current
gold
standard
in
detecting
sp.,
typically
resource-intensive,
laborious,
time-consuming.
These
limitations
greatly
hinder
their
efficiency
under-developed
countries,
which
usually
regions
most
affected
by
infections.
Thus,
development
rapid,
reliable
methods
crucial
to
overcome
conventional
methods.
This
review
aims
summarize
give
insights
into
array
focuses
on
different
detect
including
polymerase
chain
reactions,
loop-mediated
isothermal
amplification,
enzyme-linked
immunosorbent
assays,
microarrays,
lateral
flow
immunoassays,
aptasensors,
spot
dye-based
sensors
CRISPR/Cas-PCR
systems.
The
were
found
have
high
specificity
sensitivity
various
species
within
genus
Vibrio.
However,
each
method
its
own
advantages
limitations,
thus
continuous
effort
needed
improve
what
currently
available
develop
with
sensitivity,
specificity,
affordability
minimal
obtain
consistent
accurate
diagnoses.
