Plants are members of communities inhabiting an environment within which they can share or compete for resources as well as communicate. Plants have evolved various mechanisms to explore the environment and interact with neighbouring plants. Among these the most effective being the release of arrays of volatile organic compounds (VOCs) from their leaves, flowers, and fruits into the atmosphere and from the roots into the soil. These communicative responses are well documented, but what precedes them and the mechanisms that are actively involved, have yet to be identified. To fill this gap the present work will measure the changes in VOC emission of pea plants acting with either a cooperative or competitive attitude. Two varieties of Pisum sativum, L. (sativum sativum and sativum macrocarpon), were chosen as model plants, to compare the behavior and emissions within the same or different genotypes belonging to the same species or genus. Pea plants were grown in a phytotron with eight climatic chambers. An untargeted metabolomics approach was applied using a Proton Transfer Reactor - Time of flight - Mass Spectrometer (PTR-MS-TOF) analysis. Preliminary results reveal differences in VOC emissions when comparing cooperating and competing pea plants. This study shed definite light on the physiological and molecular events occurring in interacting plants.
PEA PLANTS COMMUNICATION MEDIATED BY VOLATILE ORGANIC COMPOUNDS
Avesani S.
;Bianchi M.;Bonato B.;Dadda M.;Guerra S.;Simonetti V.;Ravazzolo L.;Castiello U
2024
Abstract
Plants are members of communities inhabiting an environment within which they can share or compete for resources as well as communicate. Plants have evolved various mechanisms to explore the environment and interact with neighbouring plants. Among these the most effective being the release of arrays of volatile organic compounds (VOCs) from their leaves, flowers, and fruits into the atmosphere and from the roots into the soil. These communicative responses are well documented, but what precedes them and the mechanisms that are actively involved, have yet to be identified. To fill this gap the present work will measure the changes in VOC emission of pea plants acting with either a cooperative or competitive attitude. Two varieties of Pisum sativum, L. (sativum sativum and sativum macrocarpon), were chosen as model plants, to compare the behavior and emissions within the same or different genotypes belonging to the same species or genus. Pea plants were grown in a phytotron with eight climatic chambers. An untargeted metabolomics approach was applied using a Proton Transfer Reactor - Time of flight - Mass Spectrometer (PTR-MS-TOF) analysis. Preliminary results reveal differences in VOC emissions when comparing cooperating and competing pea plants. This study shed definite light on the physiological and molecular events occurring in interacting plants.
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