The Medicago truncatula CLAVATA3-LIKE CLE12/13 signaling peptides regulate nodule number depending on the CORYNE but not the COMPACT ROOT ARCHITECTURE2 receptor
| Autor: | Elise Schnabel, Stephen Nowak, Julia Frugoli |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine Mutant Plant Science Biology Protein Sorting Signals 01 natural sciences Plant Root Nodulation 03 medical and health sciences Open Reading Frames Medicago truncatula medicine Homeostasis Receptor Gene Plant Proteins Double mutant Embryo Nodule (medicine) biology.organism_classification Cell biology Addendum 030104 developmental biology Mutation Signal transduction medicine.symptom Root Nodules Plant 010606 plant biology & botany |
| Popis: | We previously showed that the rdn1 and sunn supernodulation mutants of Medicago truncatula respond differentially to overexpression of the rhizobial CLAVAT3/EMBRYO SURROUNDING REGION (CLE) signaling peptides MtCLE12p and MtCLE13p, allowing the order of action of the genes to be determined in the autoregulation of nodulation (AON) signal transduction pathway. We tested the same gene constructs that lead to the production of proteolytically processed peptides (indicated by a p after the name) in plants mutant for two other proteins that control nodule number (CRN and CRA2) and were able to determine that CRN is involved in the same signaling pathway as MtCLE12p and MtCLE13p, while regulation in CRA2 mutants responds normally to the peptides, suggesting CRA2 likely signals separately from SUNN, RDN1, and CRN. Based on the analysis of the double mutant of cra2-2 and sunn-4, we also confirm recent findings that CRA2 acts independently of SUNN in nodule number regulation. |
| Databáze: | OpenAIRE |
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