Frontiers in Agronomy,
Journal Year:
2023,
Volume and Issue:
5
Published: May 16, 2023
The
cacao
mirid
bug,
Helopeltis
bakeri
,
is
a
major
insect
pest
of
in
the
Philippines.
It
feeds
on
pods
causing
puncture
wounds
that
become
necrotic
lesions
and
may
lead
eventually
to
pod
abortion.
There
currently
no
semiochemical-based
system
developed
for
monitoring
control
H.
.
Here,
we
report
kairomone
identified
from
host
plants
as
potential
attractant.
Volatile
components
were
extracted
using
solid-phase
microextraction
(100-µm
polydimethylsiloxane)
analyzed
by
gas
chromatography
-
mass
spectrometry.
Chemodiversity
analysis
considering
compound
richness,
evenness,
disparity
showed
similar
phytochemical
diversity
among
six
plants,
suggesting
chemodiversity
factor
selection
behavior
Comparison
volatiles
revealed
β-caryophyllene
was
present
all
plants.
Using
wind
tunnel,
an
impregnated
lure
containing
90
µg
highest
attraction
adult
results
show
attractant
can
be
used
development
kairomone-based
trapping
systems
part
holistic
integrated
management
cacao.
Microbial Drug Resistance,
Journal Year:
2024,
Volume and Issue:
30(6), P. 254 - 272
Published: April 22, 2024
The
escalating
crisis
of
antimicrobial
resistance
(AMR)
underscores
the
urgent
need
for
novel
antimicrobials.
One
promising
strategy
is
exploration
structural
diversity,
as
diverse
structures
can
lead
to
biological
activities
and
mechanisms
action.
This
review
delves
into
role
diversity
in
discovery,
highlighting
its
influence
on
factors
such
target
selectivity,
binding
affinity,
pharmacokinetic
properties,
ability
overcome
mechanisms.
We
discuss
various
approaches
exploring
including
combinatorial
chemistry,
diversity-oriented
synthesis,
natural
product
screening,
provide
an
overview
common
action
also
describe
techniques
investigating
these
mechanisms,
genomics,
proteomics,
biology.
Despite
significant
progress,
several
challenges
remain,
synthesis
compound
libraries,
identification
active
compounds,
elucidation
complex
action,
emergence
AMR,
translation
laboratory
discoveries
clinical
applications.
However,
emerging
trends
technologies,
artificial
intelligence,
high-throughput
next-generation
sequencing,
open-source
drug
offer
new
avenues
challenges.
Looking
ahead,
we
envisage
exciting
future
with
opportunities
expanding
chemical
space,
harnessing
power
nature,
deepening
our
understanding
moving
toward
personalized
medicine
collaborative
discovery.
As
face
continued
challenge
will
be
crucial
search
effective
Ecological Monographs,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 14, 2024
Abstract
Plants
produce
a
great
number
of
phytochemicals
serving
variety
different
functions.
Recently,
the
chemodiversity
these
compounds
(i.e.,
diversity
produced
by
plant)
has
been
suggested
to
be
an
important
aspect
plant
phenotype
that
may
shape
interactions
between
plants,
their
environment,
and
other
organisms.
However,
we
lack
agreement
on
how
quantify
chemodiversity,
which
complicates
conclusions
about
functional
importance
it.
Here,
discuss
(deconstructed
into
components
richness,
evenness
disparity)
relate
ecologically
relevant
aspects
phenotype.
Then,
systematically
review
literature
examine
methodological
practices,
explore
patterns
variability
in
across
levels
biological
organization,
investigate
role
this
plants
Overall,
reviewed
suggests
high
is
often
beneficial
for
although
heterogeneity
approaches
partly
limits
what
general
can
drawn.
Importantly,
support
future
research
topic,
provide
framework
with
decision
tree
facilitating
choices
measures
are
best
used
contexts
outline
key
questions
avenues
research.
A
more
thorough
understanding
will
insights
its
evolution
ecological
environment.
Metabolomics,
Journal Year:
2023,
Volume and Issue:
19(3)
Published: March 9, 2023
Liverworts
are
a
group
of
non-vascular
plants
that
possess
unique
metabolism
not
found
in
other
plants.
Many
liverwort
metabolites
have
interesting
structural
and
biochemical
characteristics,
however
the
fluctuations
these
response
to
stressors
is
largely
unknown.To
investigate
metabolic
stress-response
leafy
Radula
complanata.Five
phytohormones
were
applied
exogenously
vitro
cultured
R.
complanata
an
untargeted
metabolomic
analysis
was
conducted.
Compound
classification
identification
performed
with
CANOPUS
SIRIUS
while
statistical
analyses
including
PCA,
ANOVA,
variable
selection
using
BORUTA
conducted
identify
shifts.It
predominantly
composed
carboxylic
acids
derivatives,
followed
by
benzene
substituted
fatty
acyls,
organooxygen
compounds,
prenol
lipids,
flavonoids.
The
PCA
revealed
samples
grouped
based
on
type
hormone
applied,
(Random
Forest)
71
identified
and/or
classified
features
fluctuated
phytohormone
application.
treatments
reduced
production
selected
primary
growth
resulted
increased
compounds.
4-(3-Methyl-2-butenyl)-5-phenethylbenzene-1,3-diol
as
biomarker
for
GDP-hexose
treatments.Exogenous
application
caused
clear
shifts
deviate
from
responses
vascular
Further
metabolite
can
reveal
biomarkers
liverworts
provide
more
insight
into
stress
responses.
Frontiers in Agronomy,
Journal Year:
2023,
Volume and Issue:
5
Published: May 16, 2023
The
cacao
mirid
bug,
Helopeltis
bakeri
,
is
a
major
insect
pest
of
in
the
Philippines.
It
feeds
on
pods
causing
puncture
wounds
that
become
necrotic
lesions
and
may
lead
eventually
to
pod
abortion.
There
currently
no
semiochemical-based
system
developed
for
monitoring
control
H.
.
Here,
we
report
kairomone
identified
from
host
plants
as
potential
attractant.
Volatile
components
were
extracted
using
solid-phase
microextraction
(100-µm
polydimethylsiloxane)
analyzed
by
gas
chromatography
-
mass
spectrometry.
Chemodiversity
analysis
considering
compound
richness,
evenness,
disparity
showed
similar
phytochemical
diversity
among
six
plants,
suggesting
chemodiversity
factor
selection
behavior
Comparison
volatiles
revealed
β-caryophyllene
was
present
all
plants.
Using
wind
tunnel,
an
impregnated
lure
containing
90
µg
highest
attraction
adult
results
show
attractant
can
be
used
development
kairomone-based
trapping
systems
part
holistic
integrated
management
cacao.