The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
918, P. 170634 - 170634
Published: Feb. 6, 2024
Microcystins
(MCs)
are
frequently
detected
in
cyanobacterial
bloom-impacted
waterbodies
and
introduced
into
agroecosystems
via
irrigation
water.
They
widely
known
as
phytotoxic
cyanotoxins,
which
impair
the
growth
physiological
functions
of
crop
plants.
However,
their
impact
on
plant-associated
microbiota
is
scarcely
tackled
poorly
understood.
Therefore,
we
aimed
to
investigate
effect
MCs
microbiota-inhabiting
bulk
soil
(BS),
root
adhering
(RAS),
tissue
(RT)
Vicia
faba
when
exposed
100
μg
L−1
a
greenhouse
pot
experiment.
Under
MC
exposure,
structure,
co-occurrence
network,
assembly
processes
bacterial
were
modulated
with
greatest
RT-inhabiting
bacteria,
followed
by
BS
and,
lesser
extent,
RAS.
The
analyses
revealed
significant
decrease
abundances
several
Actinobacteriota-related
taxa
within
RT
microbiota,
including
most
abundant
genus
Streptomyces.
Furthermore,
significantly
increased
abundance
methylotrophic
bacteria
(Methylobacillus,
Methylotenera)
other
Proteobacteria-affiliated
genera
(e.g.,
Paucibacter),
supposed
degrade
MCs.
network
community
presence
was
less
complex
than
control
network.
In
MC-exposed
RT,
turnover
composition
more
strongly
driven
deterministic
processes,
proven
beta-nearest
taxon
index.
Whereas
MC-treated
RAS,
both
stochastic
can
influence
some
relative
dominance
processes.
Altogether,
these
results
suggest
that
may
reshape
structure
soil-plant
system
reducing
potential
phytobeneficial
traits
increasing
capacity
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(17), P. e36503 - e36503
Published: Aug. 24, 2024
The
interactions
between
bacteria
and
microalgae
play
pivotal
roles
in
resource
allocation,
biomass
accumulation,
nutrient
recycling,
species
succession
aquatic
systems,
offering
ample
opportunities
to
solve
several
social
problems.
escalating
threat
of
harmful
algal
blooms
(HABs)
the
environment
lack
cheap
eco-friendly
algal-biomass
processing
methods
have
been
among
main
problems,
demanding
efficient
sustainable
solutions.
In
light
this,
application
algicidal
control
HABs
enhance
has
promoted
past
few
decades
as
potentially
suitable
mechanisms
those
Hence,
this
comprehensive
review
aims
explore
diverse
interaction
modes
microalgae,
ranging
from
synergistic
antagonistic,
presents
up-to-date
information
in-depth
analysis
their
potential
biotechnological
applications,
particularly
controlling
enhancing
microalgal
processing.
For
instance,
studies
revealed
that
can
effectively
inhibit
growth
Toxins,
Journal Year:
2023,
Volume and Issue:
15(3), P. 220 - 220
Published: March 14, 2023
Harmful
cyanobacterial
blooms
occur
worldwide
and
pose
a
great
threat
to
aquatic
ecosystems
public
health.
The
application
of
algicidal
bacteria
represents
an
eco-friendly
strategy
for
controlling
harmful
blooms;
thus,
searching
high
efficiency
has
been
becoming
important
continuous
task
in
science.
Herein,
we
identified
bacterial
strain
coded
Streptomyces
sp.
HY
with
highly
activity,
investigated
its
mechanism
against
Microcystis
aeruginosa.
displayed
activity
toward
aeruginosa
cells,
removal
rate
93.04%
within
2
days
via
indirect
attack.
also
showed
the
ability
lyse
several
genera
strains,
including
Dolichospermum,
Pseudanabaena,
Anabaena,
Synechocystis,
whereas
it
minor
impact
on
green
alga
Scenedesmus
obliquus,
demonstrating
selectivity
specially
targeting
cyanobacteria.
Its
involved
damages
photosynthesis
system,
morphological
injury
algal
oxidative
stress,
dysfunction
DNA
repair
system.
Furthermore,
treatment
reduced
expression
levels
genes
(mcyB
mcyD)
related
microcystin
biosynthesis
decreased
total
content
microcystin-leucine-arginine
by
79.18%.
Collectively,
these
findings
suggested
that
is
promising
candidate
bloom
control.
Critical Reviews in Environmental Science and Technology,
Journal Year:
2023,
Volume and Issue:
54(3), P. 239 - 266
Published: July 20, 2023
The
use
of
algicidal
bacteria
has
gained
prominence
as
natural
solution
to
control
the
worrying
increase
harmful
algal
blooms
worldwide.
However,
although
cyanobacterial
(cyanoHABs)
often
dominate
freshwater
bodies,
recent
reviews
on
subject
have
addressed
cyanobacteria
in
second
place
and
focused
more
bacteria-algae
interactions.
This
article
provides
a
critical
review
fundamental
aspects
searching
for,
isolating
assaying
candidate
targeting
cyanobacteria.
Possible
species-specific
interactions
different
modes
action
against
species
are
also
discussed.
It
been
observed
that
there
is
clear
bias
literature
toward
genus
Microcystis,
being
by
far
most
studied
reviewed
date.
contrasts
with
numerous
studies
showing
dominated
other
species,
such
genera
Planktothrix,
Aphanizomenon
or
Raphidiopsis.
To
add
new
knowledge
lack
current
these
genera,
separate
experimental
section
included
this
research
results
sensitivity
nine
two
green
algae
compounds.
Finally,
certain
ecological
biosafety
risks
must
be
taken
into
account
when
applying
bioaugmentation
strategy
highlighted.
Overall,
presented
an
attempt
outline
gathered
over
last
thirty
years
research,
while
raising
questions
debates
key
issues
remain
poorly
understood.
