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@ARTICLE{Adams:818208,
author = {Adams, William W. and Stewart, Jared J. and Cohu,
Christopher M. and Muller, Onno and Demmig-Adams, Barbara},
title = {{H}abitat {T}emperature and {P}recipitation of
{A}rabidopsis thaliana {E}cotypes {D}etermine the {R}esponse
of {F}oliar {V}asculature, {P}hotosynthesis, and
{T}ranspiration to {G}rowth {T}emperature},
journal = {Frontiers in Functional Plant Ecology},
volume = {7},
issn = {1664-462X},
address = {Lausanne},
publisher = {Frontiers Media88991},
reportid = {FZJ-2016-04699},
pages = {1026},
year = {2016},
abstract = {Acclimatory adjustments of foliar vascular architecture,
photosynthetic capacity, and transpiration rate in
Arabidopsis thaliana ecotypes (Italian, Polish [Col-0],
Swedish) were characterized in the context of habitat of
origin. Temperatures of the habitat of origin decreased
linearly with increasing habitat latitude, but habitat
precipitation was greatest in Italy, lowest in Poland, and
intermediate in Sweden. Plants of the three ecotypes raised
under three different growth temperature regimes (low,
moderate, and high) exhibited highest photosynthetic
capacities, greatest leaf thickness, highest chlorophyll a/b
ratio and levels of β-carotene, and greatest levels of wall
ingrowths in phloem transfer cells, and, in the Col-0 and
Swedish ecotypes, of phloem per minor vein in plants grown
at the low temperature. In contrast, vein density and minor
vein tracheary to sieve element ratio increased with
increasing growth temperature – most strongly in Col-0 and
least strongly in the Italian ecotype – and
transpirational water loss correlated with vein density and
number of tracheary elements per minor vein. Plotting of
these vascular features as functions of climatic conditions
in the habitat of origin suggested that temperatures during
the evolutionary history of the ecotypes determined
acclimatory responses of the foliar phloem and
photosynthesis to temperature in this winter annual that
upregulates photosynthesis in response to lower temperature,
whereas the precipitation experienced during the
evolutionary history of the ecotypes determined adjustment
of foliar vein density, xylem, and transpiration to
temperature. In particular, whereas photosynthetic capacity,
leaf thickness, and foliar minor vein phloem features
increased linearly with increasing latitude and decreasing
temperature of the habitats of origin in response to
experimental growth at low temperature, transpiration rate,
foliar vein density, and minor vein tracheary element
numbers and cross-sectional areas increased linearly with
decreasing precipitation level in the habitats of origin in
response to experimental growth at high temperature. This
represents a situation where temperature acclimation of the
apparent capacity for water flux through the xylem and
transpiration rate in a winter annual responded differently
from that of photosynthetic capacity, in contrast to
previous reports of strong relationships between hydraulic
conductance and photosynthesis in other studies.},
cin = {IBG-2},
ddc = {570},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {582 - Plant Science (POF3-582)},
pid = {G:(DE-HGF)POF3-582},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000383042200001},
pubmed = {pmid:27504111},
doi = {10.3389/fpls.2016.01026},
url = {https://juser.fz-juelich.de/record/818208},
}