Aphid Colony Size Is Affected by Plant Chemotype and Terpenoid Mixture Evenness in Tansy
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 7, 2025
Abstract
Plants
are
hosts
for
above-
and
belowground
insect
communities
that
can
influence
each
other
via
above-belowground
plant-physiological
dynamics.
To
mediate
interactions,
plants
produce
secondary
metabolites,
including
terpenoids,
mixtures
differ
intraspecifically.
While
intraspecific
variation
in
plant
chemistry
gained
increased
interest,
the
extent
to
which
differences
interactions
of
herbivores
remains
unclear.
We
used
a
full
factorial
design
with
six
distinct
terpenoid
chemotypes,
differing
their
chemical
diversity
tansy
(
Tanacetum
vulgare).
exposed
these
aboveground
herbivore
Macrosiphoniella
tanacetaria
(Hemiptera:
Aphididae),
Agriotes
sp.
(Coleoptera:
Elateridae),
no
or
both
herbivores,
determine
if
chemotypes
compounds
affected
aphid
performance
between
were
mediated
by
profile.
found
colony
size
differed
strongest
increase
over
time
mixed-mixtures
chemotype,
weakest
β-thujone
chemotype.
Root
herbivory
had
effect
on
this
did
not
chemotypes.
Aphid
was
positively
correlated
evenness,
but
components.
Tansy
morphological
responses
herbivory,
whereas
exerted
minimal
impacts.
Overall,
our
results
show
profiles
directly
indirectly
modify
ecological
plant,
mediating
herbivory.
Language: Английский
Mapping sagebrush volatile chemotypes along an elevational gradient
Plant Ecology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 15, 2025
Language: Английский
Exogenous stimulation ofTanacetum vulgareroots with pipecolic acid leads to tissue-specific responses in terpenoid composition
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: April 30, 2024
Abstract
Tanacetum
vulgare
L.,
known
as
tansy,
is
a
perennial
plant
with
highly
variable
terpenoid
composition,
mono-
and
sesquiterpenoids
being
the
most
abundant.
The
high
diversity
of
terpenoids
to
play
an
important
role
in
mediating
ecological
interactions.
However,
distribution
different
tissues
inducibility
these
by
biotic
stress
are
poorly
understood.
In
this
study,
we
investigated
changes
profiles
concentrations
organs
following
treatment
roots
pipecolic
acid
(Pip).
Pipecolic
non-proteinogenic
amino
that
triggers
defense
responses
plants.
It
often
used
induce
systemic
resistance
(SAR)
plants
under
controlled
conditions.
Examination
showed
leaves
midribs
contained
mainly
monoterpenoids,
while
coarse
fine
sesquiterpenoids.
rhizomes
occupied
intermediate
position
presenting
both
but
also
unique
compounds
its
own.
Treatment
led
increase
concentration
all
except
rhizomes.
significantly
higher
amount
was
formed
root
response
Pip
compared
shoots.
metabolic
atlas
for
presented
here
shows
there
exceptionally
strong
differentiation
patterns
contents
tansy.
This,
together
differential
stress,
suggests
chemical
may
interactions
tansy
against
stressors
feed
on
below-
above-ground
plant.
Language: Английский
Exogenous stimulation of Tanacetum vulgare roots with pipecolic acid leads to tissue‐specific responses in terpenoid composition
Plant Biology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 16, 2024
Abstract
Tanacetum
vulgare
L.,
tansy,
is
a
perennial
plant
with
highly
variable
terpenoid
composition,
mono‐
and
sesquiterpenoids
being
the
most
abundant.
The
high
diversity
of
terpenoids
plays
an
important
role
in
mediating
ecological
interactions.
However,
distribution
different
tissues
inducibility
these
via
biotic
stress
are
poorly
understood.
We
investigated
changes
profiles
concentrations
organs
following
treatment
roots
pipecolic
acid
(Pip),
non‐proteinogenic
amino
that
triggers
defence
responses
leading
to
induce
systemic
resistance
(SAR)
plants.
Tansy
leaves
midribs
contained
mainly
monoterpenoids,
while
coarse
fine
sesquiterpenoids.
Rhizomes
both
but
also
unique
compounds.
Treatment
Pip
led
increase
all
except
rhizomes.
significantly
more
was
formed
root
response
treatment,
compared
shoots.
metabolic
atlas
for
presented
here
shows
there
exceptionally
strong
differentiation
patterns
content
tansy.
This,
together
differential
by
Pip,
suggests
chemical
may
play
tansy
interactions
against
stressors
feed
on
below‐
aboveground
organs.
Language: Английский
Intraspecific phytochemical diversity increases with productivity but has mixed effects on herbivory
Oikos,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 3, 2024
Resources
play
an
important
role
in
shaping
the
evolution
of
plant
defensive
strategies.
How
resource
availability
influences
overall
phytochemical
diversity
within
species,
and
how
this
in‐turn
affects
herbivore
damage
is
not
well
understood.
Using
Monarda
fistulosa
,
a
species
that
produces
diverse
terpene
compounds
distinct
chemotypes
(i.e.
thymol
or
carvacrol),
we
addressed
three
questions:
1)
do
components
total
concentration,
Shannon
diversity,
chemotypes)
vary
between
populations
from
two
large,
widely
separated
regions
differ
climate
productivity?
2)
these
influence
attack
by
different
species?
3)
What
are
growth
costs
higher
levels
chemotypes?
Seeds
were
collected
12
spread
across
precipitation‐driven
productivity,
six
low‐productivity
environment
Montana
high‐productivity
Wisconsin,
grown
common
garden
Wisconsin.
We
analyzed
concentrations,
quantified
number
herbivores
damage,
measured
above‐ground
biomass.
Plants
exhibited
concentrations
but
lower
whereas
those
Wisconsin
displayed
diversity.
received
more
specialist
seed
predator
leaf‐chewing
herbivores,
although
abundance
aphid
was
lower,
compared
to
plants
Montana.
Total
concentration
emerged
as
primary
predictor
some
differences
observed
region
origin
with
richness.
Herbivores
mixed
responses
phytochemistry;
negatively
affected,
while
specialized
leaf
galler
responded
positively.
Costs
producing
defenses
evident
negative
correlations
biomass
(but
chemical
richness
diversity).
Our
study
revealed
regional
productivity
can
which,
turn,
incurs
growth‐related
costs.
Language: Английский