Hyperspectral imaging to characterize plant–plant communication in response to insect herbivory

Abstract Background In studies of plant stress signaling, a major challenge is the lack of non-invasive methods to detect physiological plant responses and to characterize plant–plant communication over time and space. Results We acquired time series of phytocompound and hyperspectral imaging data f...

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Main Authors: Leandro do Prado Ribeiro, Adriana Lídia Santana Klock, João Américo Wordell Filho, Marco Aurélio Tramontin, Marília Almeida Trapp, Axel Mithöfer, Christian Nansen
Format: Article
Language:English
Published: BMC 2018-07-01
Series:Plant Methods
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13007-018-0322-7
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author Leandro do Prado Ribeiro
Adriana Lídia Santana Klock
João Américo Wordell Filho
Marco Aurélio Tramontin
Marília Almeida Trapp
Axel Mithöfer
Christian Nansen
author_facet Leandro do Prado Ribeiro
Adriana Lídia Santana Klock
João Américo Wordell Filho
Marco Aurélio Tramontin
Marília Almeida Trapp
Axel Mithöfer
Christian Nansen
author_sort Leandro do Prado Ribeiro
collection DOAJ
description Abstract Background In studies of plant stress signaling, a major challenge is the lack of non-invasive methods to detect physiological plant responses and to characterize plant–plant communication over time and space. Results We acquired time series of phytocompound and hyperspectral imaging data from maize plants from the following treatments: (1) individual non-infested plants, (2) individual plants experimentally subjected to herbivory by green belly stink bug (no visible symptoms of insect herbivory), (3) one plant subjected to insect herbivory and one control plant in a separate pot but inside the same cage, and (4) one plant subjected to insect herbivory and one control plant together in the same pot. Individual phytocompounds (except indole-3acetic acid) or spectral bands were not reliable indicators of neither insect herbivory nor plant–plant communication. However, using a linear discrimination classification method based on combinations of either phytocompounds or spectral bands, we found clear evidence of maize plant responses. Conclusions We have provided initial evidence of how hyperspectral imaging may be considered a powerful non-invasive method to increase our current understanding of both direct plant responses to biotic stressors but also to the multiple ways plant communities are able to communicate. We are unaware of any published studies, in which comprehensive phytocompound data have been shown to correlate with leaf reflectance. In addition, we are unaware of published studies, in which plant–plant communication was studied based on leaf reflectance.
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spelling doaj.art-6f7a2e21ec5c47b6b21b3f3a25a327dd2022-12-22T00:48:17ZengBMCPlant Methods1746-48112018-07-0114111110.1186/s13007-018-0322-7Hyperspectral imaging to characterize plant–plant communication in response to insect herbivoryLeandro do Prado Ribeiro0Adriana Lídia Santana Klock1João Américo Wordell Filho2Marco Aurélio Tramontin3Marília Almeida Trapp4Axel Mithöfer5Christian Nansen6Research Center for Family Agriculture, Research and Rural, Extension Company of Santa CatarinaResearch Center for Family Agriculture, Research and Rural, Extension Company of Santa CatarinaResearch Center for Family Agriculture, Research and Rural, Extension Company of Santa CatarinaFederal University of Fronteira SulDepartment of Bioorganic Chemistry, Max Planck Institute for Chemical EcologyDepartment of Bioorganic Chemistry, Max Planck Institute for Chemical EcologyDepartment of Entomology and Nematology, University of CaliforniaAbstract Background In studies of plant stress signaling, a major challenge is the lack of non-invasive methods to detect physiological plant responses and to characterize plant–plant communication over time and space. Results We acquired time series of phytocompound and hyperspectral imaging data from maize plants from the following treatments: (1) individual non-infested plants, (2) individual plants experimentally subjected to herbivory by green belly stink bug (no visible symptoms of insect herbivory), (3) one plant subjected to insect herbivory and one control plant in a separate pot but inside the same cage, and (4) one plant subjected to insect herbivory and one control plant together in the same pot. Individual phytocompounds (except indole-3acetic acid) or spectral bands were not reliable indicators of neither insect herbivory nor plant–plant communication. However, using a linear discrimination classification method based on combinations of either phytocompounds or spectral bands, we found clear evidence of maize plant responses. Conclusions We have provided initial evidence of how hyperspectral imaging may be considered a powerful non-invasive method to increase our current understanding of both direct plant responses to biotic stressors but also to the multiple ways plant communities are able to communicate. We are unaware of any published studies, in which comprehensive phytocompound data have been shown to correlate with leaf reflectance. In addition, we are unaware of published studies, in which plant–plant communication was studied based on leaf reflectance.http://link.springer.com/article/10.1186/s13007-018-0322-7Reflectance profilingPhytocompoundsPlant stress signallingPlant defencesInsect–plant interactionPlant phenomics
spellingShingle Leandro do Prado Ribeiro
Adriana Lídia Santana Klock
João Américo Wordell Filho
Marco Aurélio Tramontin
Marília Almeida Trapp
Axel Mithöfer
Christian Nansen
Hyperspectral imaging to characterize plant–plant communication in response to insect herbivory
Plant Methods
Reflectance profiling
Phytocompounds
Plant stress signalling
Plant defences
Insect–plant interaction
Plant phenomics
title Hyperspectral imaging to characterize plant–plant communication in response to insect herbivory
title_full Hyperspectral imaging to characterize plant–plant communication in response to insect herbivory
title_fullStr Hyperspectral imaging to characterize plant–plant communication in response to insect herbivory
title_full_unstemmed Hyperspectral imaging to characterize plant–plant communication in response to insect herbivory
title_short Hyperspectral imaging to characterize plant–plant communication in response to insect herbivory
title_sort hyperspectral imaging to characterize plant plant communication in response to insect herbivory
topic Reflectance profiling
Phytocompounds
Plant stress signalling
Plant defences
Insect–plant interaction
Plant phenomics
url http://link.springer.com/article/10.1186/s13007-018-0322-7
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