<?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>0123-3475</journal-id>
<journal-title><![CDATA[Revista Colombiana de Biotecnología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. colomb. biotecnol]]></abbrev-journal-title>
<issn>0123-3475</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biotecnología, Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-34752018000100059</article-id>
<article-id pub-id-type="doi">10.15446/rev.colomb.b¡ote.v20n1.73693</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Identificación y evaluación de actividad celulolítica en aislamientos nativos de Trichoderma spp obtenidos de biomasa de palma de aceite]]></article-title>
<article-title xml:lang="en"><![CDATA[Identification and screening of lignocellulosic activity in native isolates of Trichoderma spp., obtained from palm oil biomass]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Fernández]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[Elia Elizabeth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Piñeros-Castro]]></surname>
<given-names><![CDATA[Yineth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Jorge Tadeo Lozano Facultad de Ciencias e Ingeniería Departamento de Ciencias Biológicas y Ambientales]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Jorge Tadeo Lozano Facultad de Ciencias e Ingeniería Departamento de Ciencias Biológicas y Ambientales]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Jorge Tadeo Lozano Facultad de Ciencias e Ingeniería Departamento de Ingeniería. Programa de Ingeniería Química]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</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>20</volume>
<numero>1</numero>
<fpage>59</fpage>
<lpage>67</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-34752018000100059&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-34752018000100059&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-34752018000100059&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Se aislaron previamente ocho cepas nativas de racimos de palma de aceite en descomposición de Trichoderma sp. provenientes de la región de Cumaral, Meta, Colombia. Se utilizó la región de los ITS1-ITS4 para la identificación molecular y se determinó la actividad celulolítica (actividad sobre papel filtro) del complejo producido por las cepas utilizando residuos de palma como sustrato. Siete aislamientos nativos presentarón 100% de similaridad con hongos del género Trichoderma. Se observó para siete cepas, la presencia de las cinco anclas que identifican hongos del género Trichoderma, identificándose cuatro de los hongos nativos como Trichoderma koningiopsis (HR-04-89; HR-11-89; HR-19-89; y HR-06-89) y cuatro como Trichoderma asperellum (HR-01-89; HR-03-89; HR-16-89; HR-18-89). El bioensayo mostró que las cepas evaluadas de Trichoderma son estadísticamente significativas sobre la actividad enzimática de celulasas sobre papel filtro (p&lt;0.05). Además, las cepas HR-01-89, HR-03-89, HR-11-89, HR-04-89 y HR-18-89 no presentaron diferencias en la actividad enzimática. La cepa Trichoderma reesei utilizada como referencia, presentó un comportamiento superior y diferente comparado con las cepas nativas. La cepa nativa HR-18-89 (Trichoderma asperellum) presentó mayores niveles de actividad enzimática, 78% del valor de la cepa referencia. Es importante identificar y evaluar cepas nativas de Trichoderma sp. con novedosas actividades biológicas que permitan degradar la celulosa recalcitrante de los racimos de palma africana.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Previously, there were isolated eight native strains of Trichoderma sp. from a cluster of decomposing oil palm from Cumaral, Meta, Colombia. The ITS1-ITS4"s region was used for the molecular identification and the cellulase activity (filter paper activity) of the complex produced by strains was determined using palm waste as substrate. Seven native isolations showed between 97-100% similarity with fungi of the genus Trichoderma. It was observed for seven of the eight strains the presence of the five anchors which identify fungi of the genus Trichoderma, finding five of the native fungi such as Trichoderma koningiopsis (HR-04-89; HR-11-89; HR-19-89; y HR-06-89) four as Trichoderma asperellum (HR-01-89; HR-03-89; HR-16-89; HR-18-89). The bioassay showed that Trichoderma strains tested are statistically significant on the enzymatic activity of cellulases on filter paper (p &lt;0.05). In addition, strains HR-01-89, HR-03-89, HR-11-89, HR-04-89 and HR-18-89 showed no differences in enzymatic activity. The reference strain used, Trichoderma reesei produce a superior and different behavior compared with the native strains. The native strain HR-18-89 (Trichoderma asperellum) had higher levels of enzyme activity, 78% of the value of the reference strain. It is important to identify and evaluate native strains of Trichoderma sp. with innovative biological activities that allow to degrade the recalcitrant cellulose of the African palm clusters.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[ITS1-ITS4]]></kwd>
<kwd lng="es"><![CDATA[PCR]]></kwd>
<kwd lng="es"><![CDATA[cultivos monospóricos]]></kwd>
<kwd lng="es"><![CDATA[celulasas]]></kwd>
<kwd lng="es"><![CDATA[Trichoderma]]></kwd>
<kwd lng="en"><![CDATA[ITS1-ITS4]]></kwd>
<kwd lng="en"><![CDATA[monospore crops]]></kwd>
<kwd lng="en"><![CDATA[PCR]]></kwd>
<kwd lng="en"><![CDATA[cellulases]]></kwd>
<kwd lng="en"><![CDATA[Trichoderma]]></kwd>
</kwd-group>
</article-meta>
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