Experimental evidence for diel variations of the carbon isostope composition in leaf, stem and phloem sap organic matter in Ricinus communis
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]
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|Source:||Plant Cell and Environment|
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