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Título: | Detection of bacterial infection in melon plants by classification methods based on imaging data |
Autor: | Pineda Dorado, Mónica CSIC ORCID ; Pérez-Bueno, María Luisa CSIC ORCID; Barón Ayala, Matilde CSIC ORCID | Palabras clave: | Bacterial infection Chlorophyll fluorescence imaging Cucumis melo Dickeya dadantii Machine learning Multicolor fluorescence imaging Phenotyping Thermography |
Fecha de publicación: | 14-feb-2018 | Editor: | Frontiers Media | Citación: | Frontiers in Plant Science 9: 164 (2018) | Resumen: | The bacterium Dickeya dadantii is responsible of important economic losses in crop yield worldwide. In melon leaves, D. dadantii produced multiple necrotic spots surrounded by a chlorotic halo, followed by necrosis of the whole infiltrated area and chlorosis in the surrounding tissues. The extent of these symptoms, as well as the day of appearance, was dose-dependent. Several imaging techniques (variable chlorophyll fluorescence, multicolor fluorescence, and thermography) provided spatial and temporal information about alterations in the primary and secondary metabolism, as well as the stomatal activity in the infected leaves. Detection of diseased leaves was carried out by using machine learning on the numerical data provided by these imaging techniques. Mathematical algorithms based on data from infiltrated areas offered 96.5 to 99.1% accuracy when classifying them as mock vs. bacteria-infiltrated. These algorithms also showed a high performance of classification of whole leaves, providing accuracy values of up to 96%. Thus, the detection of disease on whole leaves by a model trained on infiltrated areas appears as a reliable method that could be scaled-up for use in plant breeding programs or precision agriculture. | Versión del editor: | https://www.frontiersin.org/articles/10.3389/fpls.2018.00164/full | URI: | http://hdl.handle.net/10261/169650 | DOI: | 10.3389/fpls.2018.00164 | Identificadores: | doi: 10.3389/fpls.2018.00164 issn: 1664-462X |
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