<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342018000100245</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v9i1.863</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Fusarium oxysporum, agente causal de la marchitez de estevia en Veracruz, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Fusarium oxysporum, causal agent of stevia wilt in Veracruz, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Leyva-Mir]]></surname>
<given-names><![CDATA[Santos Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez-Salazar]]></surname>
<given-names><![CDATA[Jennifer Dulce]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Camacho-Tapia]]></surname>
<given-names><![CDATA[Moisés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguilar-Pérez]]></surname>
<given-names><![CDATA[Luis Alfonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-López]]></surname>
<given-names><![CDATA[Elvis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tovar-Pedraza]]></surname>
<given-names><![CDATA[Juan Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Chapingo Departamento de Parasitología Agrícola ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados Campus Montecillo ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2018</year>
</pub-date>
<volume>9</volume>
<numero>1</numero>
<fpage>245</fpage>
<lpage>250</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342018000100245&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342018000100245&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342018000100245&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La marchitez de plantas de estevia (Stevia rebaudiana Bertoni) es uno de los problemas fitosanitarios de mayor importancia en la zona productora de Veracruz. El objetivo de este estudio fue identificar al agente causal de los síntomas de marchitez en plantas de estevia en una plantación localizada en Martínez de la Torre, en el estado de Veracruz, México. En 2015, se observaron y recolectaron plantas de estevia con síntomas de pudrición de raíz, necrosis basal del tallo y marchitez. A partir de las muestras, se obtuvieron continuamente colonias fúngicas de Fusarium. Para la identificación del hongo, se realizó una caracterización morfológica y análisis de secuencias de la región del espaciador interno transcrito (ITS) y de la secuencia parcial del gen factor de elongación 1-alpha (EF1-&#945;). Además, se verificó la patogenicidad de un aislado representativo de Fusarium en plantas de estevia. Los resultados de la caracterización morfológica, análisis de secuencias ITS y EF1-&#945;, así como las pruebas de patogenicidad, determinaron que Fusarium oxysporum es el agente causal de los síntomas de marchitez de plantas de estevia en Martínez de la Torre, Veracruz.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The wilting of stevia plants (Stevia rebaudiana Bertoni) is one of the most important phytosanitary problems in the production area of Veracruz. The objective of this study was to identify the causal agent of wilt symptoms in stevia plants in a plantation located in Martinez of the Torre, in the state of Veracruz, Mexico. In 2015, Stevia plants were observed and collected with symptoms of root rot, basal stem necrosis and wilting. From the samples, Fusarium fungal colonies were continuously obtained. For the identification of the fungus, a morphological characterization and sequence analysis of the region of the transcribed internal spacer (ITS) and of the partial sequence of the gene of elongation factor 1-alpha (EF1-&#945;) were performed. In addition, the pathogenicity of a representative isolate of Fusarium in stevia plants was verified. The results of the morphological characterization, analysis of ITS and EF1-&#945; sequences, as well as the pathogenicity tests, determined that Fusarium oxysporum is the causal agent of the wilt symptoms of stevia plants in Martinez of the Torre, Veracruz.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Fusarium oxysporum]]></kwd>
<kwd lng="es"><![CDATA[Stevia rebaudiana]]></kwd>
<kwd lng="es"><![CDATA[etiología]]></kwd>
<kwd lng="es"><![CDATA[hongos]]></kwd>
<kwd lng="en"><![CDATA[Fusarium oxysporum]]></kwd>
<kwd lng="en"><![CDATA[Stevia rebaudiana]]></kwd>
<kwd lng="en"><![CDATA[etiology]]></kwd>
<kwd lng="en"><![CDATA[fungi]]></kwd>
</kwd-group>
</article-meta>
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