The Heterogeneity of Ornamental Plants in Nurseries Increases the Chance of Finding New Hosts for <i>Phytophthora</i>

The production of ornamental plants in Mexico represents a job-generating activity that has grown in recent years; however, it is adversely affected by phytosanitary issues, notably those induced by <i>Phytophthora</i>. Studies of <i>Phytophthora</i> in ornamental nurseries a...

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Main Authors: Alejandro Soto-Plancarte, Marlene Díaz-Celaya, Gerardo Rodríguez-Alvarado, Yolanda Leticia Fernández-Pavía, Hilda Victoria Silva-Rojas, Martha Elena Pedraza-Santos, Rafael Salgado-Garciglia, Tyler Baldwin Bourret, Sylvia Patricia Fernández-Pavía
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Journal of Fungi
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Online Access:https://www.mdpi.com/2309-608X/11/3/187
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author Alejandro Soto-Plancarte
Marlene Díaz-Celaya
Gerardo Rodríguez-Alvarado
Yolanda Leticia Fernández-Pavía
Hilda Victoria Silva-Rojas
Martha Elena Pedraza-Santos
Rafael Salgado-Garciglia
Tyler Baldwin Bourret
Sylvia Patricia Fernández-Pavía
author_facet Alejandro Soto-Plancarte
Marlene Díaz-Celaya
Gerardo Rodríguez-Alvarado
Yolanda Leticia Fernández-Pavía
Hilda Victoria Silva-Rojas
Martha Elena Pedraza-Santos
Rafael Salgado-Garciglia
Tyler Baldwin Bourret
Sylvia Patricia Fernández-Pavía
author_sort Alejandro Soto-Plancarte
collection DOAJ
description The production of ornamental plants in Mexico represents a job-generating activity that has grown in recent years; however, it is adversely affected by phytosanitary issues, notably those induced by <i>Phytophthora</i>. Studies of <i>Phytophthora</i> in ornamental nurseries are scarce in Mexico. The aim in this study was to identify <i>Phytophthora</i> species from selected ornamental plant nurseries in Mexico as potential new hosts. Samples of 13 genera diseased plant tissue and soil were collected from eight nurseries in Mexico during 2009–2010. Based on morphology and sequences of ITS rDNA, the 19 isolates obtained were identified as <i>P. cactorum</i>, <i>P. capsici</i>, <i>P. cinnamomi</i>, <i>P. drechsleri</i>, <i>P. kelmanii</i>, <i>P. nicotianae</i>, and <i>P. tropicalis</i>. Additional loci were sequenced to support species determinations within the <i>P. capsici</i> species complex; some of these isolates could not be confirmed as belonging to any described species, and one appeared to be an interspecific hybrid. This is the first report of <i>P. kelmanii</i> in Mexico; this is noteworthy due to being a broad host range, similar to most of the other species encountered. Evidence of nursery-grown plants serving as a <i>Phytophthora</i> vector to a home garden has been reported for the first time in Mexico. <i>Cestrum nocturnum</i> and <i>Solanum ovigerum</i> are new hosts for <i>Phytophthora</i> worldwide.
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spelling doaj-art-a3b13a69356349d190d3f2f145d0032f2025-08-20T02:42:32ZengMDPI AGJournal of Fungi2309-608X2025-02-0111318710.3390/jof11030187The Heterogeneity of Ornamental Plants in Nurseries Increases the Chance of Finding New Hosts for <i>Phytophthora</i>Alejandro Soto-Plancarte0Marlene Díaz-Celaya1Gerardo Rodríguez-Alvarado2Yolanda Leticia Fernández-Pavía3Hilda Victoria Silva-Rojas4Martha Elena Pedraza-Santos5Rafael Salgado-Garciglia6Tyler Baldwin Bourret7Sylvia Patricia Fernández-Pavía8Laboratorio de Patología Vegetal, Instituto de Investigaciones Agropecuarias y Forestales, Universidad Michoacana de San Nicolás de Hidalgo (UMSNH), km 9.5 Carr. Morelia-Zinapécuaro, Tarímbaro 58880, Michoacán, MexicoLaboratorio de Patología Vegetal, Instituto de Investigaciones Agropecuarias y Forestales, Universidad Michoacana de San Nicolás de Hidalgo (UMSNH), km 9.5 Carr. Morelia-Zinapécuaro, Tarímbaro 58880, Michoacán, MexicoLaboratorio de Patología Vegetal, Instituto de Investigaciones Agropecuarias y Forestales, Universidad Michoacana de San Nicolás de Hidalgo (UMSNH), km 9.5 Carr. Morelia-Zinapécuaro, Tarímbaro 58880, Michoacán, MexicoPrograma de Edafología-Nutrición Vegetal, Colegio de Postgraduados, Campus Montecillo, km 36.5 Carr. México-Texcoco, Montecillo, Texcoco 56264, Estado de México, MexicoProducción de Semillas, Colegio de Postgraduados, Campus Montecillo, km 36.5 Carr. México-Texcoco, Montecillo, Texcoco 56264, Estado de México, MexicoFacultad de Agrobiología, Universidad Michoacana de San Nicolás de Hidalgo, Paseo Lázaro Cárdenas esq. Berlín, Colonia Viveros, Uruapan 60090, Michoacán, MexicoInstituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Edif. B-3, Ciudad Universitaria, Morelia 58060, Michoacán, MexicoMycology and Nematology Genetic Diversity and Biology Laboratory, United States Department of Agriculture-Agricultural Research Service, 10300 Baltimore Ave, Beltsville, MD 20705, USALaboratorio de Patología Vegetal, Instituto de Investigaciones Agropecuarias y Forestales, Universidad Michoacana de San Nicolás de Hidalgo (UMSNH), km 9.5 Carr. Morelia-Zinapécuaro, Tarímbaro 58880, Michoacán, MexicoThe production of ornamental plants in Mexico represents a job-generating activity that has grown in recent years; however, it is adversely affected by phytosanitary issues, notably those induced by <i>Phytophthora</i>. Studies of <i>Phytophthora</i> in ornamental nurseries are scarce in Mexico. The aim in this study was to identify <i>Phytophthora</i> species from selected ornamental plant nurseries in Mexico as potential new hosts. Samples of 13 genera diseased plant tissue and soil were collected from eight nurseries in Mexico during 2009–2010. Based on morphology and sequences of ITS rDNA, the 19 isolates obtained were identified as <i>P. cactorum</i>, <i>P. capsici</i>, <i>P. cinnamomi</i>, <i>P. drechsleri</i>, <i>P. kelmanii</i>, <i>P. nicotianae</i>, and <i>P. tropicalis</i>. Additional loci were sequenced to support species determinations within the <i>P. capsici</i> species complex; some of these isolates could not be confirmed as belonging to any described species, and one appeared to be an interspecific hybrid. This is the first report of <i>P. kelmanii</i> in Mexico; this is noteworthy due to being a broad host range, similar to most of the other species encountered. Evidence of nursery-grown plants serving as a <i>Phytophthora</i> vector to a home garden has been reported for the first time in Mexico. <i>Cestrum nocturnum</i> and <i>Solanum ovigerum</i> are new hosts for <i>Phytophthora</i> worldwide.https://www.mdpi.com/2309-608X/11/3/187oomycota<i>Phytophthora</i>potted plantsplant diseases
spellingShingle Alejandro Soto-Plancarte
Marlene Díaz-Celaya
Gerardo Rodríguez-Alvarado
Yolanda Leticia Fernández-Pavía
Hilda Victoria Silva-Rojas
Martha Elena Pedraza-Santos
Rafael Salgado-Garciglia
Tyler Baldwin Bourret
Sylvia Patricia Fernández-Pavía
The Heterogeneity of Ornamental Plants in Nurseries Increases the Chance of Finding New Hosts for <i>Phytophthora</i>
Journal of Fungi
oomycota
<i>Phytophthora</i>
potted plants
plant diseases
title The Heterogeneity of Ornamental Plants in Nurseries Increases the Chance of Finding New Hosts for <i>Phytophthora</i>
title_full The Heterogeneity of Ornamental Plants in Nurseries Increases the Chance of Finding New Hosts for <i>Phytophthora</i>
title_fullStr The Heterogeneity of Ornamental Plants in Nurseries Increases the Chance of Finding New Hosts for <i>Phytophthora</i>
title_full_unstemmed The Heterogeneity of Ornamental Plants in Nurseries Increases the Chance of Finding New Hosts for <i>Phytophthora</i>
title_short The Heterogeneity of Ornamental Plants in Nurseries Increases the Chance of Finding New Hosts for <i>Phytophthora</i>
title_sort heterogeneity of ornamental plants in nurseries increases the chance of finding new hosts for i phytophthora i
topic oomycota
<i>Phytophthora</i>
potted plants
plant diseases
url https://www.mdpi.com/2309-608X/11/3/187
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