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000014158 084__ $$2WoS$$aPlant Sciences
000014158 1001_ $$0P:(DE-Juel1)VDB67249$$aThorpe, M.R.$$b0$$uFZJ
000014158 245__ $$aModelling phloem transport within a pruned dwarf bean: a 2-source-3-sink system
000014158 260__ $$aCollingwood, Victoria$$bCSIRO Publ.$$c2011
000014158 300__ $$a127 - 138
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000014158 440_0 $$09141$$aFunctional Plant Biology$$x1445-4408$$y38
000014158 500__ $$aThe <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.
000014158 520__ $$aA mechanistic model of carbon partitioning, based on the Munch hypothesis of phloem transport and implemented with PIAF-Munch modelling platform (Lacointe and Minchin 2008), was tested for an architecture more complex than any tested previously. Using C-11 to label photosynthate, responses in transport of photosynthate within a heavily pruned dwarf bean plant (Phaseolus vulgaris L.) to changes in source and sink activities were compared with model predictions. The observed treatment responses were successfully predicted. However, the observations could not be completely explained if the modelled stem contained only one phloem pathway: tracer from a labelled leaf was always detected in both shoot apex and root, whichever of the two leaves was labelled. This shows that bidirectional flow occurred within the stem, with solute moving simultaneously in both directions. Nevertheless, a model architecture with very little more complexity could incorporate such bidirectional flow. We concluded that the model could explain the observations, and that the PIAF-Munch model platform can be expected to describe partitioning in even more complex architectures.
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000014158 65320 $$2Author$$aC-11
000014158 65320 $$2Author$$acarbon-11
000014158 65320 $$2Author$$aMunch
000014158 65320 $$2Author$$asource sink interactions
000014158 650_7 $$2WoSType$$aJ
000014158 7001_ $$0P:(DE-HGF)0$$aLacointe, A.$$b1
000014158 7001_ $$0P:(DE-Juel1)VDB97177$$aMinchin, P.W.$$b2$$uFZJ
000014158 773__ $$0PERI:(DE-600)1496158-1$$a10.1071/FP10156$$gp. 127 - 138$$p127 - 138$$q127 - 138$$tFunctional plant biology$$x1445-4408$$y2011
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000014158 9141_ $$y2011
000014158 9131_ $$0G:(DE-Juel1)FUEK407$$aDE-HGF$$bErde und Umwelt$$kP24$$lTerrestrische Umwelt$$vTerrestrische Umwelt$$x0
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