Extra peptidase of a cyanophage confers its stronger lytic effect on bloom-forming Microcystis aeruginosa
Fei Ke,
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A. D. Liu,
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Qi-Ya Zhang
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et al.
International Journal of Biological Macromolecules,
Journal Year:
2025,
Volume and Issue:
unknown, P. 140979 - 140979
Published: Feb. 1, 2025
Language: Английский
Virus Infection of a Freshwater Cyanobacterium Contributes Significantly to the Release of Toxins Through Cell Lysis
Microorganisms,
Journal Year:
2025,
Volume and Issue:
13(3), P. 486 - 486
Published: Feb. 22, 2025
Toxic
algal-bloom-forming
cyanobacteria
are
a
persistent
problem
globally
for
many
aquatic
environments.
Their
occurrence
is
attributed
to
eutrophication
and
rising
temperatures
due
climate
change.
The
result
of
these
blooms
often
the
loss
biodiversity,
economic
impacts
on
tourism
fisheries,
risks
human
animal
health.
Of
emerging
interest
poorly
understood
interplay
between
viruses
toxic
species
that
form
blooms.
This
because
recent
studies
have
suggested
may
exacerbate
harmful
effects
by
contributing
release
toxins
into
dissolved
phase
upon
cell
lysis.
However,
date,
there
no
experimental
evidence
explicitly
implicates
in
microcystin
release.
Here,
we
show
experimentally
virus
infection
toxin-producing,
harmful,
cyanobacterium
Microcystis
aeruginosa
results
4-fold
increase
toxin
microcystin-LR
two
days
post-infection
(dpi).
We
also
concentrations
remain
high
after
culture
discoloration
host
Collectively,
our
directly
implicate
as
major
contributors
from
emphasize
importance
taking
account
predictive
models
assessment
water
quality
safety.
Language: Английский
Cyanophage-encoded auxiliary metabolic genes in modulating cyanobacterial metabolism and algal bloom dynamics
Quratul Ain,
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Kevin Wu,
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Xuan Wu
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et al.
Frontiers in Virology,
Journal Year:
2024,
Volume and Issue:
4
Published: Oct. 1, 2024
Cyanophages
play
a
pivotal
role
in
controlling
cyanobacterial
populations
aquatic
environments.
These
dsDNA
viruses
harbor
auxiliary
metabolic
genes
(AMGs)
that
modulate
the
key
processes
of
their
hosts,
such
as
Photosynthesis,
nutrient
uptake
for
optimization
viral
replication.
Recently,
pan1~pan5
and
pam1~pam5
cyanophages
have
been
isolated
from
fifth
largest
water
resource
China;
Lake
Chaohu.
Detailed
genomic
analysis
these
phages
revealed
especially
Pan1,
Pam2
Pam3
possess
unique
AMGs
significantly
enhance
activities
potentially
leading
to
suppression
bloom
formation
stabilization
ecological
dynamics
Our
findings
provide
concrete
evidence
encoding
could
serve
effective
biocontrol
agents
against
harmful
algal
blooms,
offering
targeted
approach
manage
environmental
threats.
The
integration
cyanophage-based
management
therapies
with
traditional
methods
advance
efficiency
sustainability
outbreaks,
paving
way
novel
applications
management.
This
review
emphasizes
importance
critical
need
further
exploration
phage-host
fully
harness
potential
ecosystem
regulation.
Language: Английский
Cyanophage Engineering for Algal Blooms Control
Viruses,
Journal Year:
2024,
Volume and Issue:
16(11), P. 1745 - 1745
Published: Nov. 6, 2024
Cyanobacteria
represent
a
prevalent
category
of
photosynthetic
autotrophs
capable
generating
deleterious
algal
blooms,
commonly
known
as
cyanobacteria
harmful
blooms
(cyanoHABs).
These
often
produce
cyanotoxins,
which
pose
risks
to
public
health
and
ecosystems
by
contaminating
surface
waters
drinking
water
sources.
Traditional
treatment
methods
have
limited
effectiveness.
Therefore,
there
is
an
urgent
need
for
new
approach
effectively
manage
cyanoHABs.
One
promising
the
use
cyanophages,
are
viruses
that
specifically
target
cyanobacteria.
Cyanophages
serve
effective
biological
control
method
reducing
cyanoHABs
in
aquatic
systems.
By
engineering
it
possible
develop
highly
specific
strategy
minimally
impacts
non-target
species
their
propagation
environment.
This
review
explores
potential
application
cyanophages
controlling
It
includes
identification
isolation
broad-spectrum
novel
with
focus
on
freshwater
Microcystis
highlighting
broad
spectrum
high
efficiency.
Additionally,
recent
advancements
cyanophage
discussed,
including
genome
modification,
functional
gene
identification,
construction
artificial
cyanophages.
Furthermore,
current
state
addressed.
Cyanophage
managing
environments.
Language: Английский