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dc.creatorOchoa Fuentes,Yisa M.
dc.creatorHernández Pérez,Anselmo
dc.creatorDelgado Ortiz,Juan C.
dc.creatorBeltrán Beache,Mariana
dc.creatorTapia Vargas,Luis M.
dc.creatorHernández Bautista,Omegar
dc.creatorCerna Chávez,Ernesto
dc.date2018-12-01
dc.date.accessioned2019-05-17T13:12:09Z
dc.date.available2019-05-17T13:12:09Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000300301
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/98315
dc.descriptionAbstract 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.
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dc.languageen
dc.publisherPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
dc.relation10.7764/rcia.v45i3.1905
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceCiencia e investigación agraria v.45 n.3 2018
dc.subjectAvocado
dc.subjectMichoacan
dc.subjectoomycete
dc.subjectPythium
dc.subjectpathogenicity
dc.titleFirst report of avocado tree wilt by Pythium sp. amazonianum in Mexico


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