Fitted Fv/Fm temperature response curves: applying lessons from plant ecophysiology to acute thermal stress experiments in coral holobionts
Coral Reefs,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 25, 2024
Abstract
Maximum
photochemical
efficiency,
F
v
/F
m
,
is
the
preferred
metric
for
quantifying
loss
of
photosystem
II
(PSII)
function
in
photosynthetic
algal
symbionts
(Symbiodiniaceae)
reef-building
corals
exposed
to
heat
stress,
particularly
at
early
stages
coral
bleaching.
Loss
PSII
can
be
quantified
as
temperature
which
a
holobiont
loses
50%
maximum
efficiency
(50%
effective
dose,
or
ED50)
when
range
experimental
temperatures.
Here,
we
demonstrate
that
dose–response
curves
substantially
more
informative
about
coral’s
stress
response
by
including
ED5
(5%
dose),
ED95
(95%
and
decline
width
(ED95–ED5)
values
summary
statistics.
These
parameters
are
commonly
used
plant
ecophysiology
extracted
from
fitted
curves.
This
suite
metrics
provides
broader
understanding
acute
thermal
experiments
could
enhance
comparability
among
studies.
Language: Английский
Fitted Fv/Fm temperature response curves: applying lessons from plant ecophysiology to acute thermal stress experiments in coral holobionts.
Published: June 25, 2024
Maximum
photochemical
efficiency,
Fv/Fm,
is
the
preferred
metric
for
quantifying
loss
of
photosystem
II
(PSII)
function
in
photosynthetic
algal
symbionts
(Symbiodiniaceae)
reef-building
corals
exposed
to
heat-stress,
particularly
at
early
stages
coral
bleaching.
Loss
PSII
can
be
quantified
as
temperature
which
a
holobiont
loses
50%
maximum
efficiency
(50%
effective
dose,
or
ED50)
when
range
experimental
temperatures.
Here,
we
demonstrate
that
dose-response
curves
substantially
more
informative
about
coral’s
stress
response
by
including
ED5
(5%
dose),
ED95
(95%
and
Decline
Width
(ED95–ED5)
values
summary
statistics.
These
parameters
are
commonly
used
plant
ecophysiology
extracted
from
fitted
Fv/Fm
curves.
This
suite
metrics
provides
broader
understanding
acute
thermal
experiments
could
enhance
comparability
among
studies
Language: Английский