Cucurbit Powdery Mildew: First Insights for the Identification of the Causal Agent and Screening for Resistance of Squash Genotypes (Cucurbita moschata (Duchesne ex Lam.) Duchesne ex Poir.) in Mendoza, Argentina

The cucurbit powdery mildew (CPM) caused by different fungal species is a major concern for cucurbit crops around the world. In Argentina CPM constitutes the most common and damaging disease for cucurbits, especially for squash crops (Cucurbita moschata). The present study displays initial insights...

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Main Authors: Caligiore Gei, Pablo Fernando, Della Gaspera, Pedro, Benitez, Eliana, Tarnowski, Christian
Format: info:ar-repo/semantics/artículo
Language:Inglés
Published: Korean Society of Plant Pathology 2022
Subjects:
Online Access:http://hdl.handle.net/20.500.12123/13270
https://www.ppjonline.org/journal/view.php?number=2324
https://doi.org/10.5423/PPJ.OA.01.2022.0002
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author Caligiore Gei, Pablo Fernando
Della Gaspera, Pedro
Benitez, Eliana
Tarnowski, Christian
author_browse Benitez, Eliana
Caligiore Gei, Pablo Fernando
Della Gaspera, Pedro
Tarnowski, Christian
author_facet Caligiore Gei, Pablo Fernando
Della Gaspera, Pedro
Benitez, Eliana
Tarnowski, Christian
author_sort Caligiore Gei, Pablo Fernando
collection INTA Digital
description The cucurbit powdery mildew (CPM) caused by different fungal species is a major concern for cucurbit crops around the world. In Argentina CPM constitutes the most common and damaging disease for cucurbits, especially for squash crops (Cucurbita moschata). The present study displays initial insights into the knowledge of the disease in western Argentina, including the determination of the prevalent species causing CPM, as well as the evaluation of the resistance of squash cultivars and breeding lines. Fungal colonies were isolated from samples collected in Mendoza province, Argentina. A field trial was also performed to assess the resistance of five squash accessions, including commercial cultivars and breeding lines. The severity of CPM was analyzed and epidemiological models were built based on empirical data. The morphological determinations and analysis with specific molecular markers confirmed Podosphaera xanthi as the prevalent causal agent of CPM in Mendoza. The results od the field trial showed differences in the resistance trait among the squash accessions. The advanced breeding line BL717/1 showed promising results as source of CPM resistance for the future development of open pollinated resistant cultivars, a crucial tool for an integrative control of the disease.
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institution Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina)
language Inglés
publishDate 2022
publishDateRange 2022
publishDateSort 2022
publisher Korean Society of Plant Pathology
publisherStr Korean Society of Plant Pathology
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spelling INTA132702022-10-31T11:50:57Z Cucurbit Powdery Mildew: First Insights for the Identification of the Causal Agent and Screening for Resistance of Squash Genotypes (Cucurbita moschata (Duchesne ex Lam.) Duchesne ex Poir.) in Mendoza, Argentina Caligiore Gei, Pablo Fernando Della Gaspera, Pedro Benitez, Eliana Tarnowski, Christian Enfermedades de las Plantas Calabaza (cucurbita) Calabazas Cucurbita moschata Identificación Oídio Plant Diseases Squashes Identification Powdery Mildews Mendoza, Argentina The cucurbit powdery mildew (CPM) caused by different fungal species is a major concern for cucurbit crops around the world. In Argentina CPM constitutes the most common and damaging disease for cucurbits, especially for squash crops (Cucurbita moschata). The present study displays initial insights into the knowledge of the disease in western Argentina, including the determination of the prevalent species causing CPM, as well as the evaluation of the resistance of squash cultivars and breeding lines. Fungal colonies were isolated from samples collected in Mendoza province, Argentina. A field trial was also performed to assess the resistance of five squash accessions, including commercial cultivars and breeding lines. The severity of CPM was analyzed and epidemiological models were built based on empirical data. The morphological determinations and analysis with specific molecular markers confirmed Podosphaera xanthi as the prevalent causal agent of CPM in Mendoza. The results od the field trial showed differences in the resistance trait among the squash accessions. The advanced breeding line BL717/1 showed promising results as source of CPM resistance for the future development of open pollinated resistant cultivars, a crucial tool for an integrative control of the disease. EEA La Consulta Fil: Caligiore Gei, Pablo Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina Fil: Della Gaspera, Pedro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina Fil: Benitez, Eliana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina Fil: Tarnowski, Christian. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina 2022-10-31T11:48:53Z 2022-10-31T11:48:53Z 2022-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/13270 https://www.ppjonline.org/journal/view.php?number=2324 1598-2254 2093-9280 https://doi.org/10.5423/PPJ.OA.01.2022.0002 eng info:eu-repograntAgreement/INTA/2019-PE-E6-I508-001/2019-PE-E6-I508-001/AR./Diversificación de la oferta varietal de especies hortícolas de uso intensivo. info:eu-repograntAgreement/INTA/2019-PD-E4-I090-001/2019-PD-E4-I090-001/AR./Análisis de patosistemas en cultivos agrícolas y especies forestales. Caracterización de sus componentes info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Mendoza .......... (province) (World, South America, Argentina) 1001427 Korean Society of Plant Pathology The Plant Pathology Journal 38 (4) : 296-303. (August 2022)
spellingShingle Enfermedades de las Plantas
Calabaza (cucurbita)
Calabazas
Cucurbita moschata
Identificación
Oídio
Plant Diseases
Squashes
Identification
Powdery Mildews
Mendoza, Argentina
Caligiore Gei, Pablo Fernando
Della Gaspera, Pedro
Benitez, Eliana
Tarnowski, Christian
Cucurbit Powdery Mildew: First Insights for the Identification of the Causal Agent and Screening for Resistance of Squash Genotypes (Cucurbita moschata (Duchesne ex Lam.) Duchesne ex Poir.) in Mendoza, Argentina
title Cucurbit Powdery Mildew: First Insights for the Identification of the Causal Agent and Screening for Resistance of Squash Genotypes (Cucurbita moschata (Duchesne ex Lam.) Duchesne ex Poir.) in Mendoza, Argentina
title_full Cucurbit Powdery Mildew: First Insights for the Identification of the Causal Agent and Screening for Resistance of Squash Genotypes (Cucurbita moschata (Duchesne ex Lam.) Duchesne ex Poir.) in Mendoza, Argentina
title_fullStr Cucurbit Powdery Mildew: First Insights for the Identification of the Causal Agent and Screening for Resistance of Squash Genotypes (Cucurbita moschata (Duchesne ex Lam.) Duchesne ex Poir.) in Mendoza, Argentina
title_full_unstemmed Cucurbit Powdery Mildew: First Insights for the Identification of the Causal Agent and Screening for Resistance of Squash Genotypes (Cucurbita moschata (Duchesne ex Lam.) Duchesne ex Poir.) in Mendoza, Argentina
title_short Cucurbit Powdery Mildew: First Insights for the Identification of the Causal Agent and Screening for Resistance of Squash Genotypes (Cucurbita moschata (Duchesne ex Lam.) Duchesne ex Poir.) in Mendoza, Argentina
title_sort cucurbit powdery mildew first insights for the identification of the causal agent and screening for resistance of squash genotypes cucurbita moschata duchesne ex lam duchesne ex poir in mendoza argentina
topic Enfermedades de las Plantas
Calabaza (cucurbita)
Calabazas
Cucurbita moschata
Identificación
Oídio
Plant Diseases
Squashes
Identification
Powdery Mildews
Mendoza, Argentina
url http://hdl.handle.net/20.500.12123/13270
https://www.ppjonline.org/journal/view.php?number=2324
https://doi.org/10.5423/PPJ.OA.01.2022.0002
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