Plants,
Год журнала:
2024,
Номер
13(9), С. 1239 - 1239
Опубликована: Апрель 29, 2024
The
release
of
cyanide
from
cyanogenic
precursors
is
the
central
core
plant
defences
based
on
cyanogenesis
process.
Although
formed
as
a
coproduct
some
metabolic
routes,
its
production
mostly
due
to
degradation
cyanohydrins
originating
glycosides
in
plants
and
4-OH-ICN
route
Brassicaceae.
Cyanohydrins
are
then
hydrolysed
reversible
reaction
generating
cyanide,
being
both,
toxic
compounds
with
potential
defensive
properties
against
pests
pathogens.
Based
cyanogenic-derived
molecules
response
damage
caused
by
herbivore
infestation,
this
review,
we
compile
actual
knowledge
events
plant–pest
context.
Besides
potential,
mode
action,
targets
combat
phytophagous
insects
acari,
special
attention
has
been
paid
arthropod
responses
strategies
overcome
impact
cyanogenesis.
Physiological
behavioural
adaptations,
well
detoxification
β-cyanoalanine
synthases,
rhodaneses,
cyanases
common
ways
arthropods
produced
plants.
Much
experimental
work
needed
further
understand
complexities
specificities
defence–counter-defence
system
be
applied
breeding
programs.
Nature Metabolism,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 3, 2025
Abstract
Small,
gaseous
molecules
such
as
nitric
oxide,
carbon
monoxide
and
hydrogen
sulfide
are
produced
signalling
in
mammalian
cells.
Here,
we
show
that
low
concentrations
of
cyanide
generated
endogenously
various
tissues
We
detect
several
cellular
compartments
human
cells
the
blood
mice.
Cyanide
production
is
stimulated
by
glycine,
occurs
at
pH
lysosomes
requires
peroxidase
activity.
When
a
specific
rate,
exerts
stimulatory
effects
on
mitochondrial
bioenergetics,
cell
metabolism
proliferation,
but
impairs
bioenergetics
high
concentrations.
can
modify
cysteine
residues
via
protein
S
-cyanylation,
which
detectable
basally
mice,
increases
response
to
glycine.
Low-dose
supplementation
exhibits
cytoprotective
hypoxia
reoxygenation
models
vitro
vivo.
Conversely,
pathologically
elevated
nonketotic
hyperglycinaemia
detrimental
Our
findings
indicate
should
be
considered
part
same
group
endogenous
regulatory
gasotransmitters
sulfide.
Journal of Experimental Botany,
Год журнала:
2023,
Номер
74(19), С. 6040 - 6051
Опубликована: Авг. 16, 2023
The
high
phenotypic
plasticity
developed
by
plants
includes
rapid
responses
and
adaptations
to
aggressive
or
changing
environments.
To
achieve
this,
they
evolved
extremely
efficient
mechanisms
of
signaling
mediated
a
wide
range
molecules,
including
small
signal
molecules.
Among
them,
hydrogen
cyanide
(HCN)
has
been
largely
ignored
due
its
toxic
characteristics.
However,
not
only
is
it
present
in
living
organisms,
but
shown
that
serves
several
functions
all
kingdoms
life.
Research
using
model
changed
the
traditional
point
view,
demonstrated
HCN
plays
positive
role
plant
response
pathogens
independently
toxicity.
Indeed,
induces
aimed
at
protecting
from
pathogen
attack,
provided
either
exogenously
(in
vitro
some
cyanogenic
bacteria
species
rhizosphere)
endogenously
reactions
involving
ethylene,
camalexin,
other
cyanide-containing
compounds).
contribution
different
function,
new
post-translational
modification
cysteines
proteins,
namely
S-cyanylation,
discussed
here.
This
work
opens
up
an
expanding
'HCN
field'
research
related
organisms.
The
main
chemical,
ecotoxicological,
and
environmental
fate
characteristics
of
cyanide,
along
with
its
treatment
methods
for
cyanide-contaminated
wastewater,
were
thoroughly
examined.
A
global
biogeochemical
cycle
cyanide
is
proposed,
covering
the
key
physicochemical
processes
occurring
in
aqueous,
soil,
atmospheric
environments.
principles,
advantages,
disadvantages
various
methods—including
physicochemical,
electrochemical,
photochemical,
biological
approaches—are
evaluated.
Finally,
feasibility
reusing
waste
explored.
Insect–plant
interactions
are
complex
and
dynamic
relationships
that
have
evolved
over
millions
of
years.
Plants
developed
various
adaptations
to
deter
insect
herbivores,
including
physical,
chemical,
induced
defences.
In
response,
insects
detoxification
mechanisms,
behavioural
adaptations,
physiological
overcome
these
This
coevolutionary
arms
race
has
shaped
the
between
plants
insects,
leading
a
diverse
array
strategies
counter-strategies.
Additionally,
other
associated
organisms
such
as
endosymbionts
rhizosphere
microbes
been
shown
play
critical
role
in
interactions.
Endosymbionts
can
alter
nutritional
quality
plant
tissue
confer
resistance
environmental
stressors,
while
influence
growth
nutrient
uptake.
Understanding
insect–plant
important
implications
for
protection
management.
By
leveraging
relationships,
we
develop
sustainable
eco-friendly
approaches
crop
pest
Abstract
Background
Rhizosphere
microorganisms
are
vital
in
plants’
growth
and
development
these
beneficial
microbes
recruited
to
the
root-zone
soil
when
experiencing
various
environmental
stresses.
However,
effect
of
white
grub
(
Maladera
verticalis
)
larvae
feeding
on
structure
function
rhizosphere
microbial
communities
aerobic
rice
Oryza
sativa
L.)
is
unclear.
Results
In
this
study,
we
compared
physicochemical
properties,
enzyme
activities,
using
18
samples
under
healthy
M.
larvae-feeding
soils
at
Yunnan
China.
16
S
rRNA
ITS
amplicons
were
sequenced
Illumina
high
throughput
sequencing.
can
influence
properties
which
also
change
communities.
The
had
distinct
genus
signatures,
such
as
possible_genus_04
Knoellia
genera
norank_f__SC
−
I−84
norank_f__Roseiflexaceae
soils.
pathway
metabolism
terpenoids
polyketides
carbohydrate
bacteria
significantly
decreased
after
feeding.
Fungal
parasite–wood
saprotroph
fungal
parasites
feeding,
plant
pathogen–wood
animal
pathogen–undefined
increased
Additionally,
relative
abundance
Bradyrhizobium
Talaromyces
gradually
with
elevation
density.
Bacterial
correlated
respectively.
Conclusions
Based
results
provide
new
insight
for
understanding
adaptation
via
regulating
environment,
would
allow
us
facilitate
translation
more
effective
measures.
Physiologia Plantarum,
Год журнала:
2024,
Номер
176(4)
Опубликована: Июль 1, 2024
Abstract
Tetranychus
urticae
is
an
important
pest
that
causes
severe
damage
to
a
wide
variety
of
plants
and
crops,
leading
substantial
productivity
loss.
Previous
research
has
been
focused
on
plant
defence
response
T.
improve
resistance.
However,
growth,
development
reproduction
throughout
the
infestation
process
have
not
previously
studied.
Through
physiological,
biochemical,
transcriptomic
hormonomic
evaluation,
we
uncover
molecular
mechanisms
directing
defence‐growth
trade‐off
established
in
Arabidopsis
upon
infestation.
Upon
mite
attack,
suffer
adaptation
characterized
by
temporal
separation
between
growth
responses.
Jasmonic
salicylic
acids
regulate
main
responses
combination
with
auxin
abscisic
acid.
while
reduction
both
signalling
gibberellin,
cytokinin
brassinosteroid
biosynthesis
lead
initial
arrest,
increasing
levels
hormones
at
later
stages
enables
restart.
These
alterations
developmental
delay
impacts
seed
production
longevity.
We
demonstrate
coordinated
trade‐offs
determine
survival,
revealing
long‐lasting
effect
negatively
impacting
viability.
This
study
provides
additional
tools
design
management
strategies
resistance
without
penalty
fitness.
Plant Science,
Год журнала:
2024,
Номер
345, С. 112118 - 112118
Опубликована: Май 20, 2024
Understanding
the
complex
interactions
between
plants
and
herbivores
is
essential
for
improving
crop
resistance.
Aiming
to
expand
role
of
cyanogenesis
in
plant
defence,
we
investigated
response
cyanogenic
Phaseolus
lunatus
(lima
bean)
non-cyanogenic
vulgaris
(common
Tetranychus
urticae
(spider
mite)
infestation.
Despite
mite
infesting
both
legumes,
leaf
damage
infringed
by
this
feeder
was
reduced
lima
bean.
Comparative
transcriptome
analyses
revealed
that
species
exhibited
substantial
metabolic
transcriptional
changes
upon
infestation,
although
alterations
P.
were
significantly
more
pronounced.
Specific
differences
amino
acid
homeostasis
key
genes
associated
with
pathway
observed
these
species,
as
well
upregulation
mandelonitrile
lyase
gene
(PlMNL1)
following
T.
feeding.
Concomitantly,
PIMNL1
activity
increased.
Lima
bean
also
displayed
an
induction
β-cyanoalanine
synthase
(PlCYSC1),
a
enzyme
cyanide
detoxification,
suggesting
internal
regulatory
mechanism
manage
toxicity
their
defence
responses.
These
findings
contribute
our
understanding
legume-herbivore
underscore
potential
elaboration
specific
defensive
responses,
even
within
same
genus,
which
may
reflect
distinctive
evolutionary
adaptations
or
varying
capabilities
species.
