Evaluation of tolerance to Fusarium oxysporum and Fusarium solani in Virginia-type tobacco (Nicotiana tabacum L.) varieties under controlled conditions in Northwestern Argentina

The production of tobacco (Nicotiana tabacum L.) in Argentina is centered in the northwestern region (NWA), where the incidence of root rots and stem diseases caused by Fusarium spp. has increased considerably in recent years. This study aimed to evaluate the pathogenicity levels of isolates of the...

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Autores principales:	Lorena A. Berruezo, Eleonora M. Harries, Marta Z. Galván, Sebastian A. Stenglein, Guadalupe Mercado Cárdenas
Formato:	article
Lenguaje:	EN ES
Publicado:	Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo 2021
Materias:	tolerance Nicotiana tabacum L. FOSC FSSC soil-borne diseases pathogenicity Agriculture S Food processing and manufacture TP368-456
Acceso en línea:	https://doaj.org/article/1e515036e34b4a78b9de951428cd272c
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spelling	oai:doaj.org-article:1e515036e34b4a78b9de951428cd272c2021-12-04T12:32:49ZEvaluation of tolerance to Fusarium oxysporum and Fusarium solani in Virginia-type tobacco (Nicotiana tabacum L.) varieties under controlled conditions in Northwestern Argentina0370-46611853-8665https://doaj.org/article/1e515036e34b4a78b9de951428cd272c2021-12-01T00:00:00Zhttps://revistas.uncu.edu.ar/ojs/index.php/RFCA/article/view/4474https://doaj.org/toc/0370-4661https://doaj.org/toc/1853-8665 The production of tobacco (Nicotiana tabacum L.) in Argentina is centered in the northwestern region (NWA), where the incidence of root rots and stem diseases caused by Fusarium spp. has increased considerably in recent years. This study aimed to evaluate the pathogenicity levels of isolates of the F. oxysporum and F. solani complexes in different varieties of Virginia Type tobacco. The commercial varieties MB47, PVH229, NC71, K346, K326, and K394 were inoculated with six isolates of both complexes. The variables evaluated were the incidence and severity of the symptoms. The area under the disease progress curves (AUDPC) was calculated and subjected to analysis of variance (ANOVA). Also, disease epidemiological models were fitted to the experimental data. The MB47 variety was significantly less infected and the varieties K346, K326, and K394 had the highest AUDPC means, showing susceptibility to the isolates. The disease intensity curves were adequately described by the monomolecular and logistic models. The results provide, for the first time, information about the levels of tolerance to vascular wilt and root rot under controlled conditions for the main varieties of Virginia-type tobacco grown in NWA. Highlights: • FOSC isolates produced mainly wilting, chlorosis, and growth reduction in tobacco plants; in contrast, FSSC isolates caused root rot, with characteristic necrotic lesions and root rot symptoms. • The highest DSI scores were registered for Fo27 and Fo15, while the lowest DSI score was found for Fs98. • The results obtained from the DSI scores were related to the mean AUDPC values of the isolates. • MB47 and NC71 were significantly less infected than the other varieties, which registered low AUDPC values. Lorena A. Berruezo Eleonora M. Harries Marta Z. GalvánSebastian A. StengleinGuadalupe Mercado CárdenasFacultad de Ciencias Agrarias. Universidad Nacional de CuyoarticletoleranceNicotiana tabacum L.FOSCFSSCsoil-borne diseasespathogenicityAgricultureSFood processing and manufactureTP368-456ENESRevista de la Facultad de Ciencias Agrarias, Vol 53, Iss 2 (2021)
institution	DOAJ
collection	DOAJ
language	EN ES
topic	tolerance Nicotiana tabacum L. FOSC FSSC soil-borne diseases pathogenicity Agriculture S Food processing and manufacture TP368-456
spellingShingle	tolerance Nicotiana tabacum L. FOSC FSSC soil-borne diseases pathogenicity Agriculture S Food processing and manufacture TP368-456 Lorena A. Berruezo Eleonora M. Harries Marta Z. Galván Sebastian A. Stenglein Guadalupe Mercado Cárdenas Evaluation of tolerance to Fusarium oxysporum and Fusarium solani in Virginia-type tobacco (Nicotiana tabacum L.) varieties under controlled conditions in Northwestern Argentina
description	The production of tobacco (Nicotiana tabacum L.) in Argentina is centered in the northwestern region (NWA), where the incidence of root rots and stem diseases caused by Fusarium spp. has increased considerably in recent years. This study aimed to evaluate the pathogenicity levels of isolates of the F. oxysporum and F. solani complexes in different varieties of Virginia Type tobacco. The commercial varieties MB47, PVH229, NC71, K346, K326, and K394 were inoculated with six isolates of both complexes. The variables evaluated were the incidence and severity of the symptoms. The area under the disease progress curves (AUDPC) was calculated and subjected to analysis of variance (ANOVA). Also, disease epidemiological models were fitted to the experimental data. The MB47 variety was significantly less infected and the varieties K346, K326, and K394 had the highest AUDPC means, showing susceptibility to the isolates. The disease intensity curves were adequately described by the monomolecular and logistic models. The results provide, for the first time, information about the levels of tolerance to vascular wilt and root rot under controlled conditions for the main varieties of Virginia-type tobacco grown in NWA. Highlights: • FOSC isolates produced mainly wilting, chlorosis, and growth reduction in tobacco plants; in contrast, FSSC isolates caused root rot, with characteristic necrotic lesions and root rot symptoms. • The highest DSI scores were registered for Fo27 and Fo15, while the lowest DSI score was found for Fs98. • The results obtained from the DSI scores were related to the mean AUDPC values of the isolates. • MB47 and NC71 were significantly less infected than the other varieties, which registered low AUDPC values.
format	article
author	Lorena A. Berruezo Eleonora M. Harries Marta Z. Galván Sebastian A. Stenglein Guadalupe Mercado Cárdenas
author_facet	Lorena A. Berruezo Eleonora M. Harries Marta Z. Galván Sebastian A. Stenglein Guadalupe Mercado Cárdenas
author_sort	Lorena A. Berruezo
title	Evaluation of tolerance to Fusarium oxysporum and Fusarium solani in Virginia-type tobacco (Nicotiana tabacum L.) varieties under controlled conditions in Northwestern Argentina
title_short	Evaluation of tolerance to Fusarium oxysporum and Fusarium solani in Virginia-type tobacco (Nicotiana tabacum L.) varieties under controlled conditions in Northwestern Argentina
title_full	Evaluation of tolerance to Fusarium oxysporum and Fusarium solani in Virginia-type tobacco (Nicotiana tabacum L.) varieties under controlled conditions in Northwestern Argentina
title_fullStr	Evaluation of tolerance to Fusarium oxysporum and Fusarium solani in Virginia-type tobacco (Nicotiana tabacum L.) varieties under controlled conditions in Northwestern Argentina
title_full_unstemmed	Evaluation of tolerance to Fusarium oxysporum and Fusarium solani in Virginia-type tobacco (Nicotiana tabacum L.) varieties under controlled conditions in Northwestern Argentina
title_sort	evaluation of tolerance to fusarium oxysporum and fusarium solani in virginia-type tobacco (nicotiana tabacum l.) varieties under controlled conditions in northwestern argentina
publisher	Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo
publishDate	2021
url	https://doaj.org/article/1e515036e34b4a78b9de951428cd272c
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Evaluation of tolerance to Fusarium oxysporum and Fusarium solani in Virginia-type tobacco (Nicotiana tabacum L.) varieties under controlled conditions in Northwestern Argentina

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