American Journal of Botany,
Journal Year:
2023,
Volume and Issue:
110(7)
Published: May 18, 2023
The
specialized
metabolites
of
plants
are
recognized
as
key
chemical
traits
in
mediating
the
ecology
and
evolution
sundry
plant-biotic
interactions,
from
pollination
to
seed
predation.
Intra-
interspecific
patterns
metabolite
diversity
have
been
studied
extensively
leaves,
but
diverse
biotic
interactions
that
contribute
encompass
all
plant
organs.
Focusing
on
two
species
Psychotria
shrubs,
we
investigated
compared
leaves
fruit
with
respect
each
organ's
interactions.To
evaluate
associations
between
interaction
diversity,
combined
UPLC-MS
metabolomic
analysis
foliar
existing
surveys
leaf-
fruit-centered
interactions.
We
richness
variance
among
vegetative
reproductive
tissues,
plants,
species.In
our
study
system,
interact
a
far
larger
number
consumer
than
do
fruit,
while
fruit-centric
more
ecologically
they
involve
antagonistic
mutualistic
consumers.
This
aspect
was
reflected
richness-leaves
contained
organ
over
200
organ-specific
metabolites.
Within
species,
fruit-specialized
composition
varied
independently
one
another
across
individual
plants.
Contrasts
were
stronger
organs
species.As
disparate
traits,
can
tremendous
overall
Journal of Chemical Ecology,
Journal Year:
2024,
Volume and Issue:
50(7-8), P. 385 - 396
Published: May 17, 2024
The
ecological
interaction
between
fleshy
fruits
and
frugivores
is
influenced
by
diverse
mixtures
of
secondary
metabolites
that
naturally
occur
in
the
fruit
pulp.
Although
some
have
a
primary
role
defending
pulp
against
antagonistic
frugivores,
these
also
potentially
affect
mutualistic
interactions.
physiological
impact
on
remains
largely
unexplored.
Using
bat
(Carollia
perspicillata),
we
showed
ingesting
four
commonly
found
plant
tissues
affects
foraging
behavior
induces
changes
fecal
metabolome.
Our
behavioral
trials
tested
typically
deter
bats.
metabolomic
surveys
suggest
alter,
either
increasing
or
decreasing,
absorption
essential
macronutrients.
These
effects
vary
based
specific
identity
concentration
metabolite
tested.
results
portion
consumed
excreted
intact
slightly
modified.
By
identifying
key
shifts
metabolome
frugivore
caused
consumption,
this
study
improves
our
understanding
chemistry
physiology.
Royal Society Open Science,
Journal Year:
2024,
Volume and Issue:
11(6)
Published: June 1, 2024
Aposematic
animals
rely
on
diverse
secondary
metabolites
for
defence.
Various
hypotheses,
such
as
competition,
life
history
and
multifunctionality,
have
been
posited
to
explain
defence
variability
diversity.
We
investigate
the
compound
selectivity
hypothesis
using
large
milkweed
bugs,
Oncopeltus
fasciatus
,
determine
if
distinct
cardenolides
vary
in
toxicity
different
predators.
quantify
bug’s
defensive
secretions
body
tissues
test
individual
compounds
against
predator
target
sites,
Na
+
/K
-ATPases,
that
are
predicted
differ
sensitivity.
Frugoside,
gofruside,
glucopyranosyl
frugoside
gofruside
were
dominant
of
insects,
whereas
two
monoglycosidic
cardenolides—frugoside
gofruside—were
most
abundant
fluid.
These
highly
toxic
(IC
50
<
1
μM)
an
invertebrate
a
sensitive
vertebrate
enzyme,
comparison
glucosylated
compounds.
Gofruside
was
weakest
inhibitor
putatively
resistant
predator.
Glucopyranosyl
calotropin,
found
only
60%
also
effective
enzymes.
Our
results
suggest
sequestered
by
O.
probably
provide
consistency
protection
range
predators
underscore
need
consider
communities
prey
evolution.
American Journal of Botany,
Journal Year:
2023,
Volume and Issue:
110(7)
Published: May 18, 2023
The
specialized
metabolites
of
plants
are
recognized
as
key
chemical
traits
in
mediating
the
ecology
and
evolution
sundry
plant-biotic
interactions,
from
pollination
to
seed
predation.
Intra-
interspecific
patterns
metabolite
diversity
have
been
studied
extensively
leaves,
but
diverse
biotic
interactions
that
contribute
encompass
all
plant
organs.
Focusing
on
two
species
Psychotria
shrubs,
we
investigated
compared
leaves
fruit
with
respect
each
organ's
interactions.To
evaluate
associations
between
interaction
diversity,
combined
UPLC-MS
metabolomic
analysis
foliar
existing
surveys
leaf-
fruit-centered
interactions.
We
richness
variance
among
vegetative
reproductive
tissues,
plants,
species.In
our
study
system,
interact
a
far
larger
number
consumer
than
do
fruit,
while
fruit-centric
more
ecologically
they
involve
antagonistic
mutualistic
consumers.
This
aspect
was
reflected
richness-leaves
contained
organ
over
200
organ-specific
metabolites.
Within
species,
fruit-specialized
composition
varied
independently
one
another
across
individual
plants.
Contrasts
were
stronger
organs
species.As
disparate
traits,
can
tremendous
overall