<?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>0187-5779</journal-id>
<journal-title><![CDATA[Terra Latinoamericana]]></journal-title>
<abbrev-journal-title><![CDATA[Terra Latinoam]]></abbrev-journal-title>
<issn>0187-5779</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de la Ciencia del Suelo A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-57792020000300443</article-id>
<article-id pub-id-type="doi">10.28940/terra.v38i2.629</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Las defensas físico-químicas de las plantas y su efecto en la alimentación de los rumiantes]]></article-title>
<article-title xml:lang="en"><![CDATA[The physico-chemical plant defenses and its effect on ruminant feeding]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Camacho-Escobar]]></surname>
<given-names><![CDATA[Marco Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramos-Ramos]]></surname>
<given-names><![CDATA[Diego Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ávila-Serrano]]></surname>
<given-names><![CDATA[Narciso Ysac]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Bernal]]></surname>
<given-names><![CDATA[Edgar Iván]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Garrido]]></surname>
<given-names><![CDATA[Serafín Jacobo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,aff1  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,aff2  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad del Mar Instituto de Ecología ]]></institution>
<addr-line><![CDATA[San Pedro Mixtepec Oaxaca]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<volume>38</volume>
<numero>2</numero>
<fpage>443</fpage>
<lpage>453</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-57792020000300443&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-57792020000300443&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-57792020000300443&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Las plantas son consumidas por diversos organismos, esta situación pone en riesgo su sobrevivencia, por ello han desarrollado mecanismos de defensa que evitan su ingesta. Por ejemplo, adaptaciones anatómicas, defensas químicas o metabolitos secundarios. Estos fitoquímicos inhiben el ataque de patógenos, provocan irritación al contacto, afectan los sistemas cutáneo, gastrointestinal, cardíaco y nervioso de los herbívoros o pueden provocar la muerte. Los rumiantes tienen adaptaciones mecánicas, fisiológicas y etológicas para evadir las defensas vegetales: rechazo, regulación y biotransformación. Desarrollaron adaptaciones anatomo-fisiológicas para albergar simbiontes microbianos para degradar celulosa y toxinas vegetales. Algunos metabolitos secundarios pueden tener efectos benéficos en alimentación o medicina animal, pero se requiere de mayor estudio sobre el tema.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary: Plants are consumed by various organisms, this situation puts their survival at risk, so they have developed defense mechanisms that prevent their intake. For example, anatomical adaptations, chemical defenses or secondary metabolites. These phytochemicals inhibit the attack of pathogens, cause contact irritation, affect the cutaneous, gastrointestinal, cardiac and nervous systems of herbivores or can cause death. Ruminants have mechanical, physiological and ethological adaptations to evade plant defenses: rejection, regulation and biotransformation. They developed anatomic-physiological adaptations to house microbial symbionts to degrade cellulose and plant toxins. Some secondary metabolites may have beneficial effects in food or animal medicine, but more study needed on the subject.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[evolución planta-herbívoro]]></kwd>
<kwd lng="es"><![CDATA[metabolitos secundarios]]></kwd>
<kwd lng="es"><![CDATA[rumiantes]]></kwd>
<kwd lng="en"><![CDATA[plant-herbivore evolution]]></kwd>
<kwd lng="en"><![CDATA[secondary metabolites]]></kwd>
<kwd lng="en"><![CDATA[ruminants]]></kwd>
</kwd-group>
</article-meta>
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