<?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>1870-3453</journal-id>
<journal-title><![CDATA[Revista mexicana de biodiversidad]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Biodiv.]]></abbrev-journal-title>
<issn>1870-3453</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-34532021000100312</article-id>
<article-id pub-id-type="doi">10.22201/ib.20078706e.2021.92.3560</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Free amino acids in nectar: its composition and variability among bat-pollinated plants]]></article-title>
<article-title xml:lang="es"><![CDATA[Aminoácidos libres en el néctar: composición y variabilidad en plantas polinizadas por murciélagos]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Peña]]></surname>
<given-names><![CDATA[Nelly]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Stoner]]></surname>
<given-names><![CDATA[Kathryn E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Schondube]]></surname>
<given-names><![CDATA[Jorge E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Durán-Díaz]]></surname>
<given-names><![CDATA[Angel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Portilla]]></surname>
<given-names><![CDATA[Luis Barbo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-Ortiz]]></surname>
<given-names><![CDATA[César Mateo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Estudios Superiores Iztacala Laboratorio de Fisiología Vegetal]]></institution>
<addr-line><![CDATA[Tlalnepantla Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colorado State University Wildlife and Conservation Biology ]]></institution>
<addr-line><![CDATA[ Colorado]]></addr-line>
<country>USA</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México  Centro de Investigaciones en Ecosistemas]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Estudios Superiores Iztacala Departamento de Bioestadística]]></institution>
<addr-line><![CDATA[Tlalnepantla Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Estudios Superiores Iztacala Laboratorio Nacional en Salud]]></institution>
<addr-line><![CDATA[Tlalnepantla Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>92</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532021000100312&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532021000100312&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532021000100312&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Regardless of the low concentrations at which amino acids are present in floral nectar of bat-pollinated plants, their role as nectar flavor providers and their influence on bats&#8217; foraging decisions have been recognized. Nevertheless, variation in the free amino acids among bat-pollinated plant species has been less studied. The goal of this study was to analyze the nectar free amino acids and to determine its variability among 8 bat-pollinated plant species from 5 families in a Tropical Dry Forest in Mexico. Nectar collections were made opportunistically depending on plants flowering season. We quantified 17 amino acids by HPLC. All 17 free amino acids were present in nectar from the 8 analyzed plant species. The concentration of 12 amino acids is explained by plant species by 19-58%. Analyses showed that Ceiba grandiflora (Malvaceae) was significantly different in asparagine content when compared to Bahuinia pauletia (Fabaceae) and Ceiba aesculifolia (Malvaceae), and in glutamic acid when compared to Ipomoea ampullacea (Convolvulaceae). We discuss the importance of free amino acids in nectar among plant species and their influence on bat pollination ecology.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Independientemente de las bajas concentraciones a las que los aminoácidos están presentes en el néctar floral de las plantas polinizadas por murciélagos, se ha reconocido su papel como proveedores de sabor al néctar y su influencia en las decisiones de alimentación de los murciélagos. Sin embargo, la variación en los aminoácidos libres entre las especies de plantas polinizadas por murciélagos ha sido menos estudiada. El objetivo de este estudio fue analizar los aminoácidos libres en el néctar y determinar su variabilidad entre 8 especies de plantas polinizadas por murciélagos de 5 familias en un bosque tropical seco en México. La colecta de néctar se realizó de manera oportunista dependiendo de la temporada de floración de las plantas. Cuantificamos 17 aminoácidos por HPLC. Los 17 aminoácidos libres estuvieron presentes en el néctar de las 8 especies de plantas analizadas. La concentración de 12 aminoácidos se explicó por la especie de planta en 19-58%. Los análisis mostraron que Ceiba grandiflora (Malvaceae) fue significativamente diferente en el contenido de asparagina cuando se comparó con Bahuinia pauletia (Fabaceae) y Ceiba aesculifolia (Malvaceae), y en ácido glutámico en comparación con Ipomoea ampullacea (Convolvulaceae). Discutimos la importancia de los aminoácidos libres en el néctar entre las especies de plantas y su influencia en la ecología de la polinización de los murciélagos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Bat-pollinated plants]]></kwd>
<kwd lng="en"><![CDATA[Free amino acid nectar types]]></kwd>
<kwd lng="en"><![CDATA[Nectar chemistry]]></kwd>
<kwd lng="en"><![CDATA[Nectar flavor]]></kwd>
<kwd lng="en"><![CDATA[Pollination ecology]]></kwd>
<kwd lng="es"><![CDATA[Plantas polinizadas por murciélagos]]></kwd>
<kwd lng="es"><![CDATA[Tipos de aminoácidos libres en el néctar]]></kwd>
<kwd lng="es"><![CDATA[Química del néctar]]></kwd>
<kwd lng="es"><![CDATA[Sabor del néctar]]></kwd>
<kwd lng="es"><![CDATA[Ecología de la polinización]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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