Volatile organic compounds in Solanum lycopersicum leaves and their roles in plant protection

Abstract

Tomato (Solanum lycopersicum L.) is a species of high economic value, an essential food source, and a model organism for both applied and basic research in crop science. Tomato plants also produce and emit a wide variety of volatile organic compounds (VOCs), which are thought to play a prominent role in multitrophic interactions. This review aims to provide a comprehensive overview of the extensive literature about tomato VOCs emitted by leaves. We explored the role of VOCs in the interactions of tomato plants with the environment, focusing on VOCs that provide plant protection against herbivores, pathogen vectors, pathogens, and abiotic stresses. VOC functions in plant-plant communication and defence are less known, but new evidence is now being collected showing that VOCs sent by plants can inform neighbour plants about impending stresses. Overall, improved knowledge on VOC biochemistry and functions may soon allow their use for sustainable protection practices of tomato crops. Remaining gaps and promising areas for future research are also examined.

Acknowledgements

We acknowledge the financial support under the National Recovery and Resilience Plan, Mission 4, Component 2, Investment 1.1, Call for tender No. 1409 published on 14 September 2022 by the Italian Ministry of University and Research (MUR), funded by the European Union—NextGenerationEU—Project PRIN 2022 PNRR P20229ZW4A RE-VOC CUP B53D23032030001; Grant Assignment Decree No. 1048 adopted on 14/07/2023 by the Italian Ministry of University and Research (MUR); Italian Ministry of University and Research (MUR) under the Programma Operativo Nazionale ricerca e Innovazione (PON) 2014-2020 (FSE REACT-EU) programme (grant agreement No. DOT1326JZS to S.G.); ‘Call for access to the National Research infrastructures of the Italian Plant Phenotyping network Phen-Italy’—CUP B85F19003500005.

Conflict of interest statement

The authors declare that they have no conflicts of interest regarding the publication of this manuscript.

Supplementary Data

Supplementary data is available at Horticulture Research online.

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