Visnyk of Lviv University Biological series,
Journal Year:
2023,
Volume and Issue:
88, P. 92 - 102
Published: March 16, 2023
We
studied
by
the
laboratory
tests
impact
of
most
widespread
pesticides
(insecticide
“Actor”,
fungicide
“Scooter”,
herbicide
“Titus-C”)
in
different
concentrations
(0,001–1000
mg/L)
and
water
on
main
ecotoxicological
indexes
genetic
vicaristic
“western”
“eastern”
allospecies
great
ramshorn
Planorbarius
corneus
s.
lato.
It
was
established,
ranges
toxic
action
these
pollutants
(mg/L)
are
following:
insecticide
–
<
0.01–1,
0.1–80,
40–1000
for
allospecies,
0.001–1,
0.01–10,
10–1000,
respectively,
allospecies.
By
scale
ramshorns,
toxicants
belong
to
low-toxic
(herbicide
“Titus
C”),
strongly
(fungicide
“Scooter”)
highly
“Actor”),
present
following
order:
>
herbicide.
Via
monitoring
behavioral
features
physiological
state
mollusсs,
we
established
threshold,
sub-lethal,
chronic-lethal
acute-lethal
each
examined
(mg/L).
The
length
latent
period
within
intoxication
process
development
differed
among
Under
0,001–10
mg/L,
this
index
higher
than
(p≤0.05).
Adaptation
coefficients
three
categories
mollusсs
were
highest
under
lowest
action,
registered
earlier
Along
with
increasing
concentrations,
durability
raised
both
but
they
appeared
one
lethal
time
decreased
from
lower
toxicant
used,
same
it
shorter
1–2
hours
absolute
values
toxicity
1.6–10-fold
(р≤0.05).
certain
used
toxicants,
developed
irreversible
pathological
consisting
5
phases:
latent,
stimulatory,
depressive,
sublethal
lethal.
equal
all
experiments,
mortality
that
one.
a
set
signs
is
much
more
sensitive
less
adapted
environment
is,
thus
tends
regress
conditions
enhanced
pollution
toxicants.
can
be
consequence
arid
climate
allospecies’
range
Left-Bank
Ukraine.
Frontiers in Physiology,
Journal Year:
2023,
Volume and Issue:
14
Published: Aug. 15, 2023
Edible
bivalves
constitute
an
important
bioresource
from
economic
point
of
view,
and
studies
on
their
immune
responses
to
environmental
pollutants
are
crucial
for
both
the
preservation
biodiversity
reasons.
The
worldwide
diffusion
copper(I)-based
antifouling
paints
has
increased
copper
leaching
into
coastal
environments
its
potential
impact
target
nontarget
organisms.
In
this
study,
immunotoxicity
assays
were
carried
out
with
short-term
(60
min)
cultures
hemocytes
Mytilus
galloprovincialis-a
mussel
dominant
in
macrofouling
community-and
Ruditapes
philippinarum-a
clam
soft-sediment
community-exposed
CuCl
compare
toxic
effects
responses.
LC50
values
similar,
40
μM
(3.94
mg
L-1)
44
(4.33
clam.
species,
apoptosis
occurred
after
exposure
1
µM
(98.9
μg
CuCl,
concentration
able
significantly
increase
intracellular
Ca2+
content.
Biomarkers
cell
morphology
motility
revealed
microfilament
disruption,
a
significant
decrease
yeast
phagocytosis
lysosome
hydrolase
(β-glucuronidase)
inhibition
beginning
0.5
(49.5
same
affected
biomarkers
oxidative
stress,
as
reduced
glutathione
content
cytoplasm
mitochondrial
cytochrome-c
oxidase
(COX)
detected
species.
Comparison
showed
that
is
more
sensitive
than
regarding
alterations
lysosomal
membrane
reactive
oxygen
species
(ROS)
production,
which
supports
harmful
biocides
survival
pivotal
community.
Environmental Pollution,
Journal Year:
2023,
Volume and Issue:
342, P. 123084 - 123084
Published: Dec. 7, 2023
Monitoring
pesticide
run-off
in
the
aquatic
environment
is
ecologically
important.
Effective
methods
are
required
to
detect
wide
range
of
possible
pesticides
that
enter
estuaries
from
surrounding
catchment.
Here,
we
investigate
occurrence
Richmond
River
estuary,
Australia,
and
compare
effectiveness
using
oysters
Chemcatcher®
passive
sampling
devices
against
composite
water
samples.
Samples
were
collected
six
sites
during
two
periods:
January
March
2020
(4
weekly
samples
oyster
collections)
February
2021
(8
twice
deployment).
analysed
for
up
174
pesticides.
A
total
21
detected
across
all
methods.
The
number
mixture
was
higher
than
In
2021,
samplers
more
Herbicides
most
common
Insecticides
fungicides
only
Chemcatcher®.
Overall,
use
three
complementary
approaches
demonstrated
a
high
level
input
into
highlighting
usefulness
as
biomonitors
some
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
942, P. 173685 - 173685
Published: May 31, 2024
Pesticide
mixtures
are
frequently
utilized
in
agriculture,
yet
their
cumulative
effects
on
aquatic
organisms
remain
poorly
understood.
Aquatic
animals
can
be
effective
bioindicators
and
invasive
bivalves,
owing
to
widespread
distribution,
provide
an
opportunity
assess
these
impacts.
Glyphosate
imidacloprid,
among
the
most
prevalent
pesticides
globally,
detected
freshwater
systems
South
America.
This
study
aims
understand
of
pesticide
organisms,
using
Corbicula
largillierti
clams
from
a
natural
stream
northwestern
Argentina.
We
conducted
48-hour
exposure
experiments
two
concentrations
imidacloprid
(20
200
μg
L
Environmental Pollution,
Journal Year:
2024,
Volume and Issue:
359, P. 124561 - 124561
Published: July 15, 2024
Pesticides,
including
insecticides
and
fungicides,
are
major
contaminants
in
the
effluent
from
intensive
agricultural
systems,
such
as
greenhouses.
Because
of
their
constant
use
persistence,
some
pesticides
can
accumulate
soil
and/or
run
off
into
adjacent
waterways.
Microbial
communities
degrade
pesticides,
bioreactors
with
enhanced
microbial
have
potential
to
facilitate
decontamination
before
is
released
environment.
In
this
study,
we
sampled
along
a
gradient
immediately
below
greenhouses,
into,
through
bioreactor.
Multi-analyte
pesticide
screening
was
undertaken
shotgun
metagenomic
sequencing,
assess
community
taxonomic
profiles
metabolic
pathway
responses
for
functional
analysis.
Two
(imidacloprid
fipronil)
nine
fungicides
were
identified
samples,
general
decrease
most
increasing
distance
Diversity
indexes
show
changes
gradient.
particular,
significantly
different
bioreactor,
lower
Shannon
diversity
compared
channels
leading
bioreactor
further
downstream.
Metabolic
analysis
revealed
significant
wide
range
core
housekeeping
genes
protein/amino
acid
synthesis
lipid/fatty
biosynthesis
among
sampling
sites.
The
result
demonstrates
that
composition
pathways
shifted
towards
an
increased
tendency
phytol
contaminant
degradation
facilitated
by
high
organic
matter
content.
This
highlights
within
reduce
contamination
sediment
receiving
run-off
Journal of Biomolecular Structure and Dynamics,
Journal Year:
2021,
Volume and Issue:
40(19), P. 9332 - 9346
Published: May 20, 2021
Increased
scientific
interest
has
led
to
the
rise
in
biotechnological
uses
of
halophilic
and
halotolerant
microbes
for
hypersaline
wastewater
bioremediation.
Hence,
this
study
performed
molecular
docking,
dynamic
(MD)
simulations,
validation
by
Molecular
Mechanic
Poisson-Boltzmann
Surface
Area
(MM-PBSA)
calculations
on
DehH2
from
Bacillus
thuringiensis
H2.
We
aimed
identify
interactions
with
substrates
haloacids,
haloacetates,
chlorpyrifos
under
extreme
salinity
(35%
NaCl).
MD
simulations
revealed
that
preferentially
degraded
haloacids
haloacetates
(-6.3
-4.7
kcal/mol)
forming
three
or
four
hydrogen
bonds
catalytic
triad,
Asp125,
Arg201,
Lys202.
Conversely,
was
least
preferred
substrate
both
MM-PBSA
calculations.
simulation
results
ranked
DehH2-L-2CP
complex
(RMSD
□0.125-0.23
nm)
as
most
stable
while
DehH2-chlorpyrifos
0.32
nm;
RMSF
0.0
-
0.29).
The
order
stability
follows:
>
DehH2-MCA
DehH2-D-2CP
DehH2-3CP
DehH2-2,2-DCP
DehH2-2,3-DCP
DehH2-TCA
DehH2-chlorpyrifos.
further
affirmed
complex's
highest
lowest
binding
energy
-45.14
kcal/mol,
followed
closely
(-41.21
kcal/mol),
(-31.59
(-30.75
DehH2-2,2-
DCP
(-29.72
(-22.20
(-18.46
kcal/mol).
positive
(+180.57
proved
enzyme's
non-preference
substrate.
ultimately
illustrated
unique
specificity
degrade
above-said
pollutants
a
condition.Communicated
Ramaswamy
H.
Sarma.
Comparative Biochemistry and Physiology Part C Toxicology & Pharmacology,
Journal Year:
2022,
Volume and Issue:
261, P. 109421 - 109421
Published: July 28, 2022
Neonicotinoids
are
widely
used
insecticides
around
the
world
and
preserved
permanently
in
soils
appear
surface
waters
posing
an
increased
threat
to
ecosystems.
In
present
study,
we
exposed
adult
specimens
of
amphipod
Dikerogammarus
villosus
environmentally
relevant
higher
concentrations
two
agricultural
neonicotinoids,
clothianidin
(CLO)
imidacloprid
(IMI),
for
2
days.
The
acute
effects
were
investigated
at
behavioral
(immobility
time
swimming
activity)
biochemical
(glutathione
S-transferase
[GST]
acetylcholine
esterase
[AchE]
levels.
All
CLO
(64
nM,
128
192
nM)
significantly
decreased
immobility
activity.
case
IMI,
only
highest
concentration
applied
(977
nM),
but
distance
travelled
by
animals
even
lower
(78
nM
313
nM).
GST
enzyme
activity
did
not
change
CLO-treated
groups,
however,
626
977
IMI
Similarly,
level,
all
AchE
contrast,
has
a
significant
stimulating
effect
on
concentrations.
Based
authors'
best
knowledge,
this
is
first
study
investigate
environmentally-relevant
D.
villosus.
Our
findings
contribute
understanding
physiological
neonicotinoids.