<?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>0188-6266</journal-id>
<journal-title><![CDATA[Acta universitaria]]></journal-title>
<abbrev-journal-title><![CDATA[Acta univ]]></abbrev-journal-title>
<issn>0188-6266</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Guanajuato, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-62662016000200003</article-id>
<article-id pub-id-type="doi">10.15174/au.2016.842</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Incidencia, severidad y detección de virus fitopatógenos en lechuga, en el estado de Querétaro, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Pathogenic viruses incidence, severity and detection in lettuce, in the state of Queretaro, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Moreno]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Niño Mendoza]]></surname>
<given-names><![CDATA[Graciela Hortensia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza Celedón]]></surname>
<given-names><![CDATA[Briseida]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[León Galván]]></surname>
<given-names><![CDATA[Ma. Fabiola]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Robles Hernández]]></surname>
<given-names><![CDATA[Loreto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Franco]]></surname>
<given-names><![CDATA[Ana Cecilia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Guanajuato Departamento de Agronomía División de Ciencias de la Vida]]></institution>
<addr-line><![CDATA[Irapuato Guanajuato]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Guanajuato Departamento de Alimentos División de Ciencias de la Vida]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Chihuahua Facultad de Ciencias Agrotecnológicas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2016</year>
</pub-date>
<volume>26</volume>
<numero>2</numero>
<fpage>3</fpage>
<lpage>11</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-62662016000200003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-62662016000200003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-62662016000200003&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: En el presente estudio se evaluó la incidencia, severidad y frecuencia mediante la técnica de inmuno-absorción enzimática (ELISA) del luteovirus, virus del amarillamiento occidental de la remolacha (Beet western yellows virus [BWYV]), el cucumovirus, virus mosaico del pepino (Cucumber mosaic virus [CMV]), el potyvirus, virus mosaico de la lechuga (Lettuce mosaic virus [LMV]), el alfamovirus, virus mosaico de la alfalfa (Alfalfa mosaic virus [AMV]) y el tospovirus, virus de la marchitez manchada del tomate (Tomato spotted wilt virus [TSWV]). Se utilizó un diseño de bloques completamente al azar, con tres repeticiones. La comparación múltiple de medias con Tukey P&lt; 0.05. La severidad e incidencia de virosis varía en cada fecha de plantación y localidad, siendo la segunda fecha de plantación, en la localidad de Pedro Escobedo, donde se presentó la mayor severidad e incidencia de virosis; además, la frecuencia de los virus BWYV, CMV, LMV, AMV y TSWV fue de 9.8%, 23.6%, 0.9%, 2.2% y 9.3%, respectivamente.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The present study evaluated incidence, severity, and viral frequency by means of ELISA of luteovirus, Beet western yellows virus (BWYV), Cucumovirus, cucumber mosaic virus (CMV), Potyvirus, lettuce mosaic virus (LMV), Alfamovirus, alfalfa mosaic virus (AMV), and tospovirus, Tomato spotted wilt virus (TSWV). Experimental randomized complete block design was used, with three replicate. Plus, a multiple comparison of means with Tukey P &lt; 0.05. Virus severity and incidence was different depending of the planting date and the locality. Second planting date, in Pedro Escobedo county, Qro., Mexico, presented the highest severity and incidence. BWYV, CMV, LMV, AMV and TSWV viruses were detected, at 9.8%, 23.6% 0.9% 2.2% and 9.3%, respectively.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Hortalizas]]></kwd>
<kwd lng="es"><![CDATA[Lactuca sativa L.]]></kwd>
<kwd lng="es"><![CDATA[frecuencia viral]]></kwd>
<kwd lng="en"><![CDATA[Vegetables]]></kwd>
<kwd lng="en"><![CDATA[Lactuca sativa]]></kwd>
<kwd lng="en"><![CDATA[viral frequency]]></kwd>
</kwd-group>
</article-meta>
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