%0 Journal Article %T Experimental evidence for diel variations of the carbon isotope composition in leaf, stem and phloem sap organic matter in Ricinus communis %A GESSLER, ARTHUR %A TCHERKEZ, GUILLAUME %A PEUKE, ANDREAS D. %A GHASHGHAIE, JALEH %A FARQUHAR, GRAHAM D %J Plant Cell & Environment %V 31 %N 7 %@ 0140-7791 %D 2008-07-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve