Matches in SemOpenAlex for { <https://semopenalex.org/work/W3174444549> ?p ?o ?g. }
- W3174444549 abstract "Summary - Stable isotopes at natural abundance are key tools to study physiological processes occurring outside the temporal scope of manipulation and monitoring experiments. Whole-molecule carbon isotope ratios ( 13 C/ 12 C) enable assessments of plant carbon uptake yet conceal information about carbon allocation. Here, we identify an intramolecular 13 C/ 12 C signal at treering glucose C-5 and C-6, develop experimentally testable theories on its origin, and test these theories. - First, we assess the potential of processes within C3 metabolism for signal introduction based ( inter alia ) on constraints on signal propagation posed by metabolic networks. Second, we support our theoretical framework by re-analysing published 13 C/ 12 C data and modelling signal-environment relationships. - We propose the intramolecular signal reports carbon allocation into major metabolic pathways in actively photosynthesising leaf cells including the anaplerotic, shikimate, and non-mevalonate pathway. This is supported by previously reported whole-molecule 13 C/ 12 C increases in cellulose of ozone-treated Betula pendula and a highly significant relationship between the intramolecular signal and tropospheric ozone concentration. Additionally, we postulate a pronounced preference of leaf-cytosolic triose-phosphate isomerase to catalyse the forward reaction in vivo (dihydroxyacetone phosphate to glyceraldehyde 3-phosphate). - In conclusion, intramolecular 13 C/ 12 C analysis resolves information about carbon uptake and allocation enabling more comprehensive assessments of carbon metabolism than whole-molecule 13 C/ 12 C analysis." @default.
- W3174444549 created "2021-07-05" @default.
- W3174444549 creator A5002497754 @default.
- W3174444549 creator A5003399578 @default.
- W3174444549 creator A5017197699 @default.
- W3174444549 creator A5020833053 @default.
- W3174444549 date "2021-06-25" @default.
- W3174444549 modified "2023-10-15" @default.
- W3174444549 title "Intramolecular 13C/12C signals inform about carbon allocation in plant leaves" @default.
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