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Article

Insights into the Intraspecific Variability of the above and Belowground Emissions of Volatile Organic Compounds in Tomato

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Centre d’Ecologie Fonctionnelle et Evolutive, CNRS-Université Montpellier-Université Paul-Valéry Montpellier–EPHE, Campus CNRS, CEDEX 5, F-34293 Montpellier, France
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INRAE, UR115 Plantes et Systèmes de Culture Horticoles, Site Agroparc, 84914 Avignon, France
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Author to whom correspondence should be addressed.
Academic Editors: Andrea Liliana Clavijo McCormick, Ülo Niinemets and Velemir Ninkovic
Molecules 2021, 26(1), 237; https://doi.org/10.3390/molecules26010237
Received: 10 December 2020 / Revised: 30 December 2020 / Accepted: 31 December 2020 / Published: 5 January 2021
(This article belongs to the Special Issue Recent Discoveries and New Approaches to the Study of Plant Volatiles)
The in-vivo monitoring of volatile organic compound (VOC) emissions is a potential non-invasive tool in plant protection, especially in greenhouse cultivation. We studied VOC production from above and belowground organs of the eight parents of the Multi-Parent Advanced Generation Intercross population (MAGIC) tomato population, which exhibits a high genetic variability, in order to obtain more insight into the variability of constitutive VOC emissions from tomato plants under stress-free conditions. Foliage emissions were composed of terpenes, the majority of which were also stored in the leaves. Foliage emissions were very low, partly light-dependent, and differed significantly among genotypes, both in quantity and quality. Soil with roots emitted VOCs at similar, though more variable, rates than foliage. Soil emissions were characterized by terpenes, oxygenated alkanes, and alkenes and phenolic compounds, only a few of which were found in root extracts at low concentrations. Correlation analyses revealed that several VOCs emitted from foliage or soil are jointly regulated and that above and belowground sources are partially interconnected. With respect to VOC monitoring in tomato crops, our results underline that genetic variability, light-dependent de-novo synthesis, and belowground sources are factors to be considered for successful use in crop monitoring. View Full-Text
Keywords: aboveground-belowground interactions; biomarkers; chemodiversity; isoprene; monoterpene; salicylate; sesquiterpene; Solanum lycopersicum; volatile organic compound emission aboveground-belowground interactions; biomarkers; chemodiversity; isoprene; monoterpene; salicylate; sesquiterpene; Solanum lycopersicum; volatile organic compound emission
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MDPI and ACS Style

Dehimeche, N.; Buatois, B.; Bertin, N.; Staudt, M. Insights into the Intraspecific Variability of the above and Belowground Emissions of Volatile Organic Compounds in Tomato. Molecules 2021, 26, 237. https://doi.org/10.3390/molecules26010237

AMA Style

Dehimeche N, Buatois B, Bertin N, Staudt M. Insights into the Intraspecific Variability of the above and Belowground Emissions of Volatile Organic Compounds in Tomato. Molecules. 2021; 26(1):237. https://doi.org/10.3390/molecules26010237

Chicago/Turabian Style

Dehimeche, Nafissa, Bruno Buatois, Nadia Bertin, and Michael Staudt. 2021. "Insights into the Intraspecific Variability of the above and Belowground Emissions of Volatile Organic Compounds in Tomato" Molecules 26, no. 1: 237. https://doi.org/10.3390/molecules26010237

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