<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0185-3309</journal-id>
<journal-title><![CDATA[Revista mexicana de fitopatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fitopatol]]></abbrev-journal-title>
<issn>0185-3309</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Fitopatología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-33092016000100110</article-id>
<article-id pub-id-type="doi">10.18781/R.MEX.FIT.1507-5</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Etiología de la marchitez y pudrición basal de Jatropha curcas en Arriaga, Chiapas, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Etiology of wilt and basal rot of Jatropha curcas in Arriaga, Chiapas, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salazar-Pinacho]]></surname>
<given-names><![CDATA[W.M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quiroga-Madriga]]></surname>
<given-names><![CDATA[R.R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosales-Esquinca]]></surname>
<given-names><![CDATA[M.Á.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garrido-Ramírez]]></surname>
<given-names><![CDATA[E.R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Holguín-Meléndez]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Chiapas  ]]></institution>
<addr-line><![CDATA[Villaflores Chiapas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales Agrícolas y Pesqueras Campo Experimental Centro de Chiapas ]]></institution>
<addr-line><![CDATA[Ocozocoautla Chiapas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,El Colegio de la Frontera Sur Unidad Tapachula ]]></institution>
<addr-line><![CDATA[Tapachula Chiapas]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2016</year>
</pub-date>
<volume>34</volume>
<numero>1</numero>
<fpage>110</fpage>
<lpage>115</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-33092016000100110&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-33092016000100110&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-33092016000100110&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: En el municipio de Arriaga, Chiapas, México, a partir del 2009 existe la muerte de plantas de piñón (Jatropha curcas L.) de 1 y 2 años de edad, con síntomas de marchitez y pudrición basal del tallo. La incidencia registrada es hasta un 85 %; con una alta virulencia del patógeno ya que ocasiona la muerte de la planta en un lapso de 20 a 30 días. El objetivo del presente trabajo fue determinar el agente causal de la muerte de plantas de piñón. A partir de muestras de campo de tejido enfermo de la base del tallo y raíz, se realizaron a nivel de laboratorio, aislamientos en cajas Petri con medio B de King (BK) y cloruro de trifenil tetrazolio (TTC); las cajas se incubaron a 28 °C durante 48 h. Los aislamientos obtenidos fueron purificados y sometidos a pruebas bioquímicas y de hipersensibilidad en tabaco (Nicotiana tabacum) cv. Xanthi. La identificación fue positiva para tres cepas de Ralstonia solanacearum. Sin embargo, no fue posible completar los postulados de Koch por lo que se consigna a R. solanacearum nivel de asociación.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: In the municipality of Arriaga, Chiapas, the death of physic nut (Jatropha curcas L.) 1 and 2-year old plantations has been observed since 2009, with symptoms of wilting and basal stem rot. The registered incidence has been up to 85 %; the virulence of the pathogen is very high because it causes the death of the plant in a period of 20 to 30 days. The objective of this study was to determine the causal agent of the physic nut death. Laboratory isolates were conducted from field samples of diseased plant material of stem and root tissue, in Petri dishes with B King (BK) and triphenyl tetrazolium chloride (TTC) medium, incubated at 28 °C for 48 h. The isolates obtained were purified and subjected to biochemical and hypersensitivity tests on tobacco (Nicotiana tabacum) cv. Xanthi. The identification was positive for three isolates of Ralstonia solanacearum. However, it was not possible to complete Koch's postulates; therefore, R. solanacearum is only consigned at association level.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[piñón]]></kwd>
<kwd lng="es"><![CDATA[Ralstonia solanacearum]]></kwd>
<kwd lng="es"><![CDATA[diagnosis]]></kwd>
<kwd lng="es"><![CDATA[pruebas bioquímicas]]></kwd>
<kwd lng="en"><![CDATA[Physic nut]]></kwd>
<kwd lng="en"><![CDATA[Ralstonia solanacearum]]></kwd>
<kwd lng="en"><![CDATA[diagnosis]]></kwd>
<kwd lng="en"><![CDATA[biochemical tests]]></kwd>
</kwd-group>
</article-meta>
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