Stress Response to Climate Change and Postharvest Handling in Two Differently Pigmented Lettuce Genotypes: Impact on <i>Alternaria alternata</i> Invasion and Mycotoxin Production

Many species of <i>Alternaria</i> are important pathogens that cause plant diseases and postharvest rots. They lead to significant economic losses in agriculture and affect human and animal health due to their capacity to produce mycotoxins. Therefore, it is necessary to study the factor...

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Main Authors: Jon Miranda-Apodaca, Unai Artetxe, Iratxe Aguado, Leire Martin-Souto, Andoni Ramirez-Garcia, Maite Lacuesta, José María Becerril, Andone Estonba, Amaia Ortiz-Barredo, Antonio Hernández, Iratxe Zarraonaindia, Usue Pérez-López
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Plants
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Online Access:https://www.mdpi.com/2223-7747/12/6/1304
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author Jon Miranda-Apodaca
Unai Artetxe
Iratxe Aguado
Leire Martin-Souto
Andoni Ramirez-Garcia
Maite Lacuesta
José María Becerril
Andone Estonba
Amaia Ortiz-Barredo
Antonio Hernández
Iratxe Zarraonaindia
Usue Pérez-López
author_facet Jon Miranda-Apodaca
Unai Artetxe
Iratxe Aguado
Leire Martin-Souto
Andoni Ramirez-Garcia
Maite Lacuesta
José María Becerril
Andone Estonba
Amaia Ortiz-Barredo
Antonio Hernández
Iratxe Zarraonaindia
Usue Pérez-López
author_sort Jon Miranda-Apodaca
collection DOAJ
description Many species of <i>Alternaria</i> are important pathogens that cause plant diseases and postharvest rots. They lead to significant economic losses in agriculture and affect human and animal health due to their capacity to produce mycotoxins. Therefore, it is necessary to study the factors that can result in an increase in <i>A</i>. <i>alternata</i>. In this study, we discuss the mechanism by which phenol content protects from <i>A</i>. <i>alternata</i>, since the red oak leaf cultivar (containing higher phenols) showed lower invasion than the green one, Batavia, and no mycotoxin production. A climate change scenario enhanced fungal growth in the most susceptible cultivar, green lettuce, likely because elevated temperature and CO<sub>2</sub> levels decrease plant N content, modifying the C/N ratio. Finally, while the abundance of the fungi was maintained at similar levels after keeping the lettuces for four days at 4 °C, this postharvest handling triggered TeA and TEN mycotoxin synthesis, but only in the green cultivar. Therefore, the results demonstrated that invasion and mycotoxin production are cultivar- and temperature-dependent. Further research should be directed to search for resistant cultivars and effective postharvest strategies to reduce the toxicological risk and economic losses related to this fungus, which are expected to increase in a climate change scenario.
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spelling doaj.art-5ac451c6d0a54060bd2ecf43af58f1c02023-11-17T13:21:59ZengMDPI AGPlants2223-77472023-03-01126130410.3390/plants12061304Stress Response to Climate Change and Postharvest Handling in Two Differently Pigmented Lettuce Genotypes: Impact on <i>Alternaria alternata</i> Invasion and Mycotoxin ProductionJon Miranda-Apodaca0Unai Artetxe1Iratxe Aguado2Leire Martin-Souto3Andoni Ramirez-Garcia4Maite Lacuesta5José María Becerril6Andone Estonba7Amaia Ortiz-Barredo8Antonio Hernández9Iratxe Zarraonaindia10Usue Pérez-López11Department of Plant Biology and Ecology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainDepartment of Plant Biology and Ecology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainApplied Genomics and Bioinformatics Research Group, Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainFungal and Bacterial Biomics Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainFungal and Bacterial Biomics Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainDepartment of Plant Biology and Ecology, Faculty of Pharmacy, University of the Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, SpainDepartment of Plant Biology and Ecology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainApplied Genomics and Bioinformatics Research Group, Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainNEIKER-Basque Institute for Agricultural Research and Development, 01080 Vitoria-Gasteiz, SpainDepartment of Plant Biology and Ecology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainApplied Genomics and Bioinformatics Research Group, Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainDepartment of Plant Biology and Ecology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, SpainMany species of <i>Alternaria</i> are important pathogens that cause plant diseases and postharvest rots. They lead to significant economic losses in agriculture and affect human and animal health due to their capacity to produce mycotoxins. Therefore, it is necessary to study the factors that can result in an increase in <i>A</i>. <i>alternata</i>. In this study, we discuss the mechanism by which phenol content protects from <i>A</i>. <i>alternata</i>, since the red oak leaf cultivar (containing higher phenols) showed lower invasion than the green one, Batavia, and no mycotoxin production. A climate change scenario enhanced fungal growth in the most susceptible cultivar, green lettuce, likely because elevated temperature and CO<sub>2</sub> levels decrease plant N content, modifying the C/N ratio. Finally, while the abundance of the fungi was maintained at similar levels after keeping the lettuces for four days at 4 °C, this postharvest handling triggered TeA and TEN mycotoxin synthesis, but only in the green cultivar. Therefore, the results demonstrated that invasion and mycotoxin production are cultivar- and temperature-dependent. Further research should be directed to search for resistant cultivars and effective postharvest strategies to reduce the toxicological risk and economic losses related to this fungus, which are expected to increase in a climate change scenario.https://www.mdpi.com/2223-7747/12/6/1304<i>Alternaria alternata</i>climate change scenariodefense mechanismsdifferently pigmented lettucemycotoxinspostharvest handling
spellingShingle Jon Miranda-Apodaca
Unai Artetxe
Iratxe Aguado
Leire Martin-Souto
Andoni Ramirez-Garcia
Maite Lacuesta
José María Becerril
Andone Estonba
Amaia Ortiz-Barredo
Antonio Hernández
Iratxe Zarraonaindia
Usue Pérez-López
Stress Response to Climate Change and Postharvest Handling in Two Differently Pigmented Lettuce Genotypes: Impact on <i>Alternaria alternata</i> Invasion and Mycotoxin Production
Plants
<i>Alternaria alternata</i>
climate change scenario
defense mechanisms
differently pigmented lettuce
mycotoxins
postharvest handling
title Stress Response to Climate Change and Postharvest Handling in Two Differently Pigmented Lettuce Genotypes: Impact on <i>Alternaria alternata</i> Invasion and Mycotoxin Production
title_full Stress Response to Climate Change and Postharvest Handling in Two Differently Pigmented Lettuce Genotypes: Impact on <i>Alternaria alternata</i> Invasion and Mycotoxin Production
title_fullStr Stress Response to Climate Change and Postharvest Handling in Two Differently Pigmented Lettuce Genotypes: Impact on <i>Alternaria alternata</i> Invasion and Mycotoxin Production
title_full_unstemmed Stress Response to Climate Change and Postharvest Handling in Two Differently Pigmented Lettuce Genotypes: Impact on <i>Alternaria alternata</i> Invasion and Mycotoxin Production
title_short Stress Response to Climate Change and Postharvest Handling in Two Differently Pigmented Lettuce Genotypes: Impact on <i>Alternaria alternata</i> Invasion and Mycotoxin Production
title_sort stress response to climate change and postharvest handling in two differently pigmented lettuce genotypes impact on i alternaria alternata i invasion and mycotoxin production
topic <i>Alternaria alternata</i>
climate change scenario
defense mechanisms
differently pigmented lettuce
mycotoxins
postharvest handling
url https://www.mdpi.com/2223-7747/12/6/1304
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