Phenology-specific molecular characterization of polyamine genes in Parthenium hysterophorus for strategic herbicide interventions
Abstract
Parthenium
hysterophorus
is
a
highly
invasive
weed
that
poses
serious
threat
to
biodiversity
due
its
adaptability.
This
case
study
examines
vegetative
and
reproductive
phases,
focusing
on
phenological
growth
stages
using
the
universal
BBCH
coding
system,
role
of
polyamines
(PAs)
in
these
stages.
Our
research
identified
significant
polymorphisms
key
enzymes
involved
PAs
biosynthesis,
including
spermidine
synthase
(SPDS),
spermine
(SPMS),
arginine
decarboxylase
(ADC),
caffeic
acid
O-methyltransferase
(COMT),
during
specific
SPDS
were
more
pronounced
stem
elongation
flowering,
while
SPMS
showed
heightened
variability
primarily
flowering.
Conversely,
ADC
COMT
exhibited
increased
leaf
development
flowering
These
findings
underscore
dynamic
regulation
PA
metabolism
across
different
P.
hysterophorus .
Drawing
from
findings,
we
can
develop
targeted
management
strategies
correspond
polymorphism
patterns
vital
biosynthetic
genes.
Specifically,
propose
use
broad-spectrum
non-selective
herbicides
such
as
Paraquat
before
elongation,
transitioning
post-stem
application
selective
like
Bromoxynil,
utilizing
foliar-active
translocated
glyphosate
formation.
innovative
aim
optimize
effectiveness
reducing
herbicide
usage
by
tailoring
interventions
plant's
metabolic
state.
Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown
Published: May 7, 2025
Language: Английский