First report of avocado tree wilt by Pythium sp. amazonianum in Mexico

Abstract In August and September 2014, different avocado orchards (Persea americana Mill. Var. Hass) were sampled in four municipalities (Tancítaro, Uruapan, San Juan Nuevo Parangaricutiro and Peribán) of the “Franja aguacatera” in Michoacan State, Mexico. Samples were collected...

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Autores principales:	Ochoa Fuentes,Yisa M., Hernández Pérez,Anselmo, Delgado Ortiz,Juan C., Beltrán Beache,Mariana, Tapia Vargas,Luis M., Hernández Bautista,Omegar, Cerna Chávez,Ernesto
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2018
Materias:	Avocado Michoacan oomycete Pythium pathogenicity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000300301
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spelling	oai:scielo:S0718-162020180003003012019-02-04First report of avocado tree wilt by Pythium sp. amazonianum in MexicoOchoa Fuentes,Yisa M.Hernández Pérez,AnselmoDelgado Ortiz,Juan C.Beltrán Beache,MarianaTapia Vargas,Luis M.Hernández Bautista,OmegarCerna Chávez,Ernesto Avocado Michoacan oomycete Pythium pathogenicity Abstract In August and September 2014, different avocado orchards (Persea americana Mill. Var. Hass) were sampled in four municipalities (Tancítaro, Uruapan, San Juan Nuevo Parangaricutiro and Peribán) of the “Franja aguacatera” in Michoacan State, Mexico. Samples were collected from avocado trees showing symptoms of the “Tristeza del aguacate” disease. Strains of Pythium sp. were obtained consistently from symptomatic tissue isolated in the selective medium V8®-Agar-PARPH. Morphological identification was made through taxonomic keys, and molecular identification was obtained by sequencing Internal Transcribed Spacer (ITS) gene. Koch's postulates were corroborated by pathogenicity tests carried out on P. americana seedlings with six true leaves, identifying the strain of P. sp. amazonianum as the causal agent of the “Tristeza del aguacate” disease. This is the first report that associates the “Tristeza del aguacate” with P. sp. amazonianum in Michoacan, Mexico.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.45 n.3 20182018-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000300301en10.7764/rcia.v45i3.1905
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Avocado Michoacan oomycete Pythium pathogenicity
spellingShingle	Avocado Michoacan oomycete Pythium pathogenicity Ochoa Fuentes,Yisa M. Hernández Pérez,Anselmo Delgado Ortiz,Juan C. Beltrán Beache,Mariana Tapia Vargas,Luis M. Hernández Bautista,Omegar Cerna Chávez,Ernesto First report of avocado tree wilt by Pythium sp. amazonianum in Mexico
description	Abstract In August and September 2014, different avocado orchards (Persea americana Mill. Var. Hass) were sampled in four municipalities (Tancítaro, Uruapan, San Juan Nuevo Parangaricutiro and Peribán) of the “Franja aguacatera” in Michoacan State, Mexico. Samples were collected from avocado trees showing symptoms of the “Tristeza del aguacate” disease. Strains of Pythium sp. were obtained consistently from symptomatic tissue isolated in the selective medium V8®-Agar-PARPH. Morphological identification was made through taxonomic keys, and molecular identification was obtained by sequencing Internal Transcribed Spacer (ITS) gene. Koch's postulates were corroborated by pathogenicity tests carried out on P. americana seedlings with six true leaves, identifying the strain of P. sp. amazonianum as the causal agent of the “Tristeza del aguacate” disease. This is the first report that associates the “Tristeza del aguacate” with P. sp. amazonianum in Michoacan, Mexico.
author	Ochoa Fuentes,Yisa M. Hernández Pérez,Anselmo Delgado Ortiz,Juan C. Beltrán Beache,Mariana Tapia Vargas,Luis M. Hernández Bautista,Omegar Cerna Chávez,Ernesto
author_facet	Ochoa Fuentes,Yisa M. Hernández Pérez,Anselmo Delgado Ortiz,Juan C. Beltrán Beache,Mariana Tapia Vargas,Luis M. Hernández Bautista,Omegar Cerna Chávez,Ernesto
author_sort	Ochoa Fuentes,Yisa M.
title	First report of avocado tree wilt by Pythium sp. amazonianum in Mexico
title_short	First report of avocado tree wilt by Pythium sp. amazonianum in Mexico
title_full	First report of avocado tree wilt by Pythium sp. amazonianum in Mexico
title_fullStr	First report of avocado tree wilt by Pythium sp. amazonianum in Mexico
title_full_unstemmed	First report of avocado tree wilt by Pythium sp. amazonianum in Mexico
title_sort	first report of avocado tree wilt by pythium sp. amazonianum in mexico
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000300301
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First report of avocado tree wilt by Pythium sp. amazonianum in Mexico

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