Academic Journal
Phloem Sap Composition: What Have We Learnt from Metabolomics?
| Title: | Phloem Sap Composition: What Have We Learnt from Metabolomics? |
|---|---|
| Authors: | Broussard, Louis, Abadie, Cyril, Lalande, Julie, Limami, Anis M., Lothier, Jérémy, Tcherkez, Guillaume |
| Source: | International Journal of Molecular Sciences; Apr2023, Vol. 24 Issue 8, p6917, 16p |
| Subject Terms: | METABOLOMICS, PHLOEM, PLANT nutrition, PLANT growth, PLANT development, GAS chromatography, LIQUID chromatography |
| Abstract: | Phloem sap transport is essential for plant nutrition and development since it mediates redistribution of nutrients, metabolites and signaling molecules. However, its biochemical composition is not so well-known because phloem sap sampling is difficult and does not always allow extensive chemical analysis. In the past years, efforts have been devoted to metabolomics analyses of phloem sap using either liquid chromatography or gas chromatography coupled with mass spectrometry. Phloem sap metabolomics is of importance to understand how metabolites can be exchanged between plant organs and how metabolite allocation may impact plant growth and development. Here, we provide an overview of our current knowledge of phloem sap metabolome and physiological information obtained therefrom. Although metabolomics analyses of phloem sap are still not numerous, they show that metabolites present in sap are not just sugars and amino acids but that many more metabolic pathways are represented. They further suggest that metabolite exchange between source and sink organs is a general phenomenon, offering opportunities for metabolic cycles at the whole-plant scale. Such cycles reflect metabolic interdependence of plant organs and shoot–root coordination of plant growth and development. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Molecular Sciences is the property of MDPI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Complementary Index |
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