Methyl jasmonate elicits rapid changes in carbon and nitrogen dynamics in tomato
© The Authors (2010). Journal compilation © New Phytologist Trust (2010).
| Veröffentlicht in: | The New phytologist. - 1979. - 188(2010), 3 vom: 01. Nov., Seite 835-44 |
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| Weitere Verfasser: | , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2010
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| Zugriff auf das übergeordnete Werk: | The New phytologist |
| Schlagworte: | Journal Article Research Support, U.S. Gov't, Non-P.H.S. Acetates Amino Acids Carbon Isotopes Cyclopentanes Nitrogen Isotopes Oxylipins Carbon Dioxide 142M471B3J mehr... |
| Zusammenfassung: | © The Authors (2010). Journal compilation © New Phytologist Trust (2010). • Evidence is emerging to support the notion that in response to herbivory, plants undergo changes in their primary metabolism and are able to fine-tune the allocation of new and existing resources and temporarily direct them to storage organs. • We hypothesized that simulated herbivory increases the export of resources out of the affected tissues and increases allocation to roots. We used short-lived radioisotopes to study in vivo the dynamics of newly incorporated (11)CO(2) and (13)NH(3). Methyl jasmonate (MeJA), a known defense elicitor, was applied to the foliage of tomato plants and 4 h later we monitored leaf uptake, export and whole-plant allocation of [(11)C]photosynthate and [(13)N]amino acids. • There was a marginally significant decrease in the fixation of (11)CO(2), and an increase in the export of newly acquired carbon and nitrogen out of MeJA-treated leaves. The proportion of nitrogen allocated to roots increased, whereas the proportion of carbon did not change. • These results are in agreement with our hypotheses, showing a change in the allocation of resources after treatment with MeJA; this may reduce the chance of resources being lost to herbivores and act as a buffer to biotic stress by increasing the potential for plant regrowth and survival after the attack |
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| Beschreibung: | Date Completed 02.05.2011 Date Revised 07.12.2022 published: Print-Electronic CommentIn: New Phytol. 2010 Nov;188(3):643-5. - PMID 20976868 Citation Status MEDLINE |
| ISSN: | 1469-8137 |
| DOI: | 10.1111/j.1469-8137.2010.03414.x |