<?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>S2007-09342018000400871</article-id>
<article-id pub-id-type="doi">10.29312/remexca.v9i4.337</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación in vitro de la actividad antifungica del extracto de Heliopsis longipes en cepas de Sclerotium cepivorum y Sclerotinia sclerotiorum]]></article-title>
<article-title xml:lang="en"><![CDATA[In vitro evaluation of the antifungal activity of Heliopsis longipes extract in strains of Sclerotium cepivorum and Sclerotinia sclerotiorum.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgado Ortiz]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ochoa Fuentes]]></surname>
<given-names><![CDATA[Yisa María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Beltrán-Beache]]></surname>
<given-names><![CDATA[Mariana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cerna Chávez]]></surname>
<given-names><![CDATA[Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Agraria Antonio Narro Departamento de Parasitología Agrícola ]]></institution>
<addr-line><![CDATA[Saltillo Coahuila]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<volume>9</volume>
<numero>4</numero>
<fpage>871</fpage>
<lpage>877</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342018000400871&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342018000400871&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342018000400871&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La pudrición blanca y la pudrición blanda causadas por Sclerotium cepivorum y Sclerotinia sclerotiorum son la principal causa de pérdidas en cultivos de ajo y lechuga, dificultándose su control debido a la producción de esclerocios. Una alternativa amigable con el medio ambiente para el control de enfermedades, es el uso de extractos de plantas; como Heliopsis longipes, la cual tiene la capacidad de producir alcamidas como la afinina, las cuales son responsable de su efecto como insecticida y bactericida, cabe mencionar que este compuesto se encuentra en mayor proporción en las raíces de la planta. Por lo cual la recolecta del material biológico se realizó en Guanajuato en el año de 2013, del cual se aisló el hongo y en el cual se evaluó la actividad antifúngica del extracto y se verifico la viabilidad de los esclerocios de Sclerotium cepivorum y Sclerotinia sclerotiorum, mediante la técnica de medio envenenado. Lográndose obtener porcentajes de inhibición superiores a 75% para las cepas de Sclerotium cepivorum, mientras que para Sclerotinia sclerotiorum inferiores a 40%. Además de mostrar reducción estadísticamente significativa en la producción de esclerocios y solo afectar el vigor de crecimiento en una de las cepas evaluadas. Por lo cual el extracto mostró ser efectivo en el control en los parámetros evaluados.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract White rot and soft rot caused by Sclerotium cepivorum and Sclerotinia sclerotiorum are the main cause of losses in garlic and lettuce crops, making their control difficult due to the production of sclerotia. An environmentally friendly alternative to disease control is the use of plant extracts; like Heliopsis longipes, which has the capacity to produce alcamidas like afinina, which are responsible for its effect as an insecticide and bactericide, it is worth mentioning that this compound is found in greater proportion in the roots of the plant. Therefore, the biological material was collected in Guanajuato in 2013, from which the fungus was isolated and in which the antifungal activity of the extract was evaluated and the viability of the sclerotia of Sclerotium cepivorum and Sclerotinia sclerotiorum was verified. through the technique of poisoned medium. Obtaining percentages of inhibition higher than 75% for the strains of Sclerotium cepivorum, while for Sclerotinia sclerotiorum less than 40%. In addition to showing statistically significant reduction in the production of sclerotia and only affect the vigor of growth in one of the strains evaluated. Therefore, the extract showed to be effective in the control of the parameters evaluated.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Heliopsis longipes]]></kwd>
<kwd lng="es"><![CDATA[Sclerotium cepivorum]]></kwd>
<kwd lng="es"><![CDATA[Sclerotinia sclerotiorum]]></kwd>
<kwd lng="es"><![CDATA[viabilidad de los esclerocios]]></kwd>
<kwd lng="en"><![CDATA[Heliopsis longipes]]></kwd>
<kwd lng="en"><![CDATA[Sclerotium cepivorum]]></kwd>
<kwd lng="en"><![CDATA[Sclerotinia sclerotiorum]]></kwd>
<kwd lng="en"><![CDATA[viability of sclerotia]]></kwd>
</kwd-group>
</article-meta>
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