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Experimental evidence for diel variations of the carbon isostope composition in leaf, stem and phloem sap organic matter in Ricinus communis

Gessler, Arthur; Tcherkez, Guillaume; Peuke, Andreas D; Ghashghaie, Jaleh; Farquhar, Graham

Description

Carbon isotope fractionation in metabolic processes following carboxylation of ribulose-1,5-bisphosphate (RuBP) is not as well described as the discrimination during photosynthetic CO2 fixation. However, post-carboxylation fractionation can influence the diel variation of δ13C of leaf-exported organic matter and can cause inter-organ differences in δ13C. To obtain a more mechanistic understanding of post-carboxylation modification of the isotopic signal as governed by physiological and...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
URI: http://hdl.handle.net/1885/104036
Source: Plant Cell and Environment
DOI: 10.1111/j.1365-3040.2008.01806.x

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