Root-to-shoot signalling in mycorrhizal tomato plants upon Botrytis cinerea infection
| Autor: | Paloma Sánchez-Bel, Victoria Pastor, María J. Pozo, Julia Pastor-Fernández, Victor Flors, Neus Sanmartín, Diego Mateu, Miguel Cerezo |
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| Přispěvatelé: | Universidad Jaime I, Ministerio de Economía y Competitividad (España), Diputación de Castellón, Generalitat Valenciana |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Yatein Arbuscular mycorrhizal fungi Plant Science 01 natural sciences Plant Roots Lignans 03 medical and health sciences chemistry.chemical_compound Metabolomics Symbiosis Solanum lycopersicum Mycorrhizae Botany Genetics Metabolome Pathogen Botrytis cinerea Plant Diseases Lignan biology fungi food and beverages General Medicine biology.organism_classification Root-to-shoot 030104 developmental biology chemistry Priming Shoot Efflux Botrytis Agronomy and Crop Science Plant Shoots 010606 plant biology & botany Signal Transduction |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | Arbuscular mycorrhizal symbiosis is restricted in roots, but it also improves shoot responses against leaf challenges, a phenomenon known as Mycorrhiza-Induced Resistance (MIR). This study focuses on mycorrhizal root signals that may orchestrate shoot defence responses. Metabolomic analysis of non-mycorrhizal and mycorrhizal plants upon Botrytis cinerea infection showed that roots rearrange their metabolome mostly in response to the symbiosis, whereas in shoots a stronger impact of the infection is observed. Specific clusters of compounds in shoots and roots display a priming profile suggesting an implication in the enhanced resistance observed in mycorrhizal plants. Among the primed pathways in roots, lignans showed the highest number of hits followed by oxocarboxylic acids, compounds of the amino acid metabolism, and phytohormones. The lignan yatein was present at higher concentrations in roots, root efflux and leaves of mycorrhizal plants This lignan displayed in vitro antimicrobial activity against B. cinerea and it was also functional protecting tomato plants. Besides, several JA defence-related genes were upregulated in mycorrhizal roots regardless of the pathogen infection, whereas PIN-II was primed in roots of mycorrhizal infected plants. These observations suggest that the enhanced resistance in shoots during MIR may be coordinated by lignans and oxylipins with the participation of roots. We thank the Serveis Centrals of Universitat Jaume I for the technical support. This work was financially supported by the Spanish Ministry MINECO RTL2018-094350-B-C33 and the grant to VP IJCI- 2015-24527 , by the Plan de Promoción de la Investigación-Universitat Jaume I P1.1B2015-33 and the GV/2018/115 from the program Apoyo para Grupos Emergentes, from the Generalitat Valenciana and to the Diputación de Castellón for funding the PRIMA-INTOMED consortium. We thank the grant BES-2016-077208 to NS. |
| Databáze: | OpenAIRE |
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