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The Impact of Metabolic Scion–Rootstock Interactions in Different Grapevine Tissues and Phloem Exudates

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Plant Cell Biotechnology Laboratory, Instituto de Tecnologia Química e Biológica António Xavier (Green-It Unit), Avenida da República, Estação Agronómica Nacional, 2780-157 Oeiras, Portugal
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Department 2, Max Planck Institut für Molekulare Pflanzenphysiologie, Wissenschaftspark Golm, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
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Applied Metabolome Analysis Laboratory, Max Planck Institut für Molekulare Pflanzenphysiologie, Wissenschaftspark Golm, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
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InnovPlantProtect CoLab, Estrada de Gil Vaz Apartado 72, 7351-901 Elvas, Portugal
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Unidad de Hortofruticultura, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), Avenida Montañana 930, 50059 Zaragoza, Spain
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Instituto Agroalimentario de Aragón-IA2 (CITA-Universidad de Zaragoza), 50013 Zaragoza, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Jose Manuel Lorenzo Rodriguez
Metabolites 2021, 11(6), 349; https://doi.org/10.3390/metabo11060349
Received: 26 April 2021 / Revised: 20 May 2021 / Accepted: 28 May 2021 / Published: 30 May 2021
(This article belongs to the Section Plant Science)
In viticulture, grafting is used to propagate Phylloxera-susceptible European grapevines, thereby using resistant American rootstocks. Although scion–rootstock reciprocal signaling is essential for the formation of a proper vascular union and for coordinated growth, our knowledge of graft partner interactions is very limited. In order to elucidate the scale and the content of scion–rootstock metabolic interactions, we profiled the metabolome of eleven graft combination in leaves, stems, and phloem exudate from both above and below the graft union 5–6 months after grafting. We compared the metabolome of scions vs. rootstocks of homografts vs. heterografts and investigated the reciprocal effect of the rootstock on the scion metabolome. This approach revealed that (1) grafting has a minor impact on the metabolome of grafted grapevines when tissues and genotypes were compared, (2) heterografting affects rootstocks more than scions, (3) the presence of a heterologous grafting partner increases defense-related compounds in both scion and rootstocks in shorter and longer distances from the graft, and (4) leaves were revealed as the best tissue to search for grafting-related metabolic markers. These results will provide a valuable metabolomics resource for scion–rootstock interaction studies and will facilitate future efforts on the identification of metabolic markers for important agronomic traits in grafted grapevines. View Full-Text
Keywords: grafting; grapevine; metabolic profiles; rootstocks; phloem exudate; scion–rootstock interactions grafting; grapevine; metabolic profiles; rootstocks; phloem exudate; scion–rootstock interactions
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MDPI and ACS Style

Tedesco, S.; Erban, A.; Gupta, S.; Kopka, J.; Fevereiro, P.; Kragler, F.; Pina, A. The Impact of Metabolic Scion–Rootstock Interactions in Different Grapevine Tissues and Phloem Exudates. Metabolites 2021, 11, 349. https://doi.org/10.3390/metabo11060349

AMA Style

Tedesco S, Erban A, Gupta S, Kopka J, Fevereiro P, Kragler F, Pina A. The Impact of Metabolic Scion–Rootstock Interactions in Different Grapevine Tissues and Phloem Exudates. Metabolites. 2021; 11(6):349. https://doi.org/10.3390/metabo11060349

Chicago/Turabian Style

Tedesco, Sara, Alexander Erban, Saurabh Gupta, Joachim Kopka, Pedro Fevereiro, Friedrich Kragler, and Ana Pina. 2021. "The Impact of Metabolic Scion–Rootstock Interactions in Different Grapevine Tissues and Phloem Exudates" Metabolites 11, no. 6: 349. https://doi.org/10.3390/metabo11060349

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