<?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>2074-8647</journal-id>
<journal-title><![CDATA[Biotecnología Vegetal]]></journal-title>
<abbrev-journal-title><![CDATA[Biot. Veg.]]></abbrev-journal-title>
<issn>2074-8647</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biotecnología de las PlantasUniversidad Central Marta Abreu de Las Villas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2074-86472019000400259</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización histológica de la respuesta de caña de azúcar a la infección por Puccinia kuehnii]]></article-title>
<article-title xml:lang="en"><![CDATA[Histological characterization of the sugarcane response to Puccinia kuehnii infection]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oloriz Ortega]]></surname>
<given-names><![CDATA[María Ileana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valdés]]></surname>
<given-names><![CDATA[Borys Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aday]]></surname>
<given-names><![CDATA[Osmany]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ocaña]]></surname>
<given-names><![CDATA[Bárbara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[Marilin]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gil]]></surname>
<given-names><![CDATA[Víctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[Annia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivero]]></surname>
<given-names><![CDATA[Leonardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Central Marta Abreu de Las Villas Instituto de Biotecnología de las Plantas ]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto de Investigaciones de la Caña de Azúcar  ]]></institution>
<addr-line><![CDATA[Boyeros La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Central Marta Abreu de Las Villas Centro de Investigaciones Agropecuarias ]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Centro de Información y Gestión Tecnológica  ]]></institution>
<addr-line><![CDATA[Santa Clara Villa Clara]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>19</volume>
<numero>4</numero>
<fpage>259</fpage>
<lpage>264</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2074-86472019000400259&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2074-86472019000400259&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2074-86472019000400259&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La roya naranja de la caña de azúcar, causada por Puccinia kuehnii (W. Krüger) E.J. Butler, es una de las principales enfermedades que afectan la producción de caña de azúcar (Saccharum spp.) a nivel mundial. Este trabajo tuvo como objetivo caracterizar por histología el desarrollo de P. kuehnii en hojas y la respuesta de los cultivares a la enfermedad. Se seleccionaron cuatro cultivares con diferentes grados de respuesta a la infección, los que fueron inoculados en casa de cultivo. Se realizaron estudios por microscopía en fragmentos de hojas de plantas a los 5 y 15 días posteriores a la inoculación. Se demostró que el desarrollo de las estructuras del hongo previas la penetración del tejido foliar son similares en todos los cultivares, con independencia del tipo de respuesta de la planta. Se encontró que el cultivar con grado 1 presenta una respuesta similar a la respuesta hipersensible, mientras que el grado 2 hace suponer una resistencia a partir de la contribución cuantitativa de varios genes. Los resultados son un aporte al entendimiento de las bases genéticas de la resistencia de la caña de azúcar a la roya naranja.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Sugarcane orange rust, caused by Puccinia kuehnii (W. Krüger) EJ Butler, is one of the major diseases impacting sugarcane (Saccharum spp.) production worldwide. The objective of this work was to characterize by histology the development of P. kuehnii in leaves and the response of the cultivars to the disease. Four cultures with different degrees of infection response were inoculated in greenhouse. Microscopy studies were performed in leaf fragments of plants at 5 and 15 days after inoculation. It was shown that the development of fungus structures, prior to foliar tissue penetration, are similar in all cultivars regardless of the type of plant response. It was found that cultivar with grade 1 developed response similar to the hypersensitive response, while grade 2 suggests resistance based on the quantitative contribution of several genes. The results are a contribution towards understanding the genetic basis of orange rust resistance in sugarcane.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[mejora genética]]></kwd>
<kwd lng="es"><![CDATA[resistencia]]></kwd>
<kwd lng="es"><![CDATA[roya naranja]]></kwd>
<kwd lng="en"><![CDATA[genetic improvement]]></kwd>
<kwd lng="en"><![CDATA[orange rust]]></kwd>
<kwd lng="en"><![CDATA[resistance]]></kwd>
</kwd-group>
</article-meta>
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