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@ARTICLE{Thorpe:14158,
author = {Thorpe, M.R. and Lacointe, A. and Minchin, P.W.},
title = {{M}odelling phloem transport within a pruned dwarf bean: a
2-source-3-sink system},
journal = {Functional plant biology},
issn = {1445-4408},
address = {Collingwood, Victoria},
publisher = {CSIRO Publ.},
reportid = {PreJuSER-14158},
pages = {127 - 138},
year = {2011},
note = {The <SUP>11</SUP>C work could not have been done without
the very competent technical help from Marco Dautzenberg.
PEHM was funded by FRST funding: Contract C06X0706.},
abstract = {A mechanistic model of carbon partitioning, based on the
Munch hypothesis of phloem transport and implemented with
PIAF-Munch modelling platform (Lacointe and Minchin 2008),
was tested for an architecture more complex than any tested
previously. Using C-11 to label photosynthate, responses in
transport of photosynthate within a heavily pruned dwarf
bean plant (Phaseolus vulgaris L.) to changes in source and
sink activities were compared with model predictions. The
observed treatment responses were successfully predicted.
However, the observations could not be completely explained
if the modelled stem contained only one phloem pathway:
tracer from a labelled leaf was always detected in both
shoot apex and root, whichever of the two leaves was
labelled. This shows that bidirectional flow occurred within
the stem, with solute moving simultaneously in both
directions. Nevertheless, a model architecture with very
little more complexity could incorporate such bidirectional
flow. We concluded that the model could explain the
observations, and that the PIAF-Munch model platform can be
expected to describe partitioning in even more complex
architectures.},
keywords = {J (WoSType)},
cin = {IBG-2},
ddc = {580},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Plant Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000286773600005},
doi = {10.1071/FP10156},
url = {https://juser.fz-juelich.de/record/14158},
}