<?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>2007-4298</journal-id>
<journal-title><![CDATA[Botanical Sciences]]></journal-title>
<abbrev-journal-title><![CDATA[Bot. sci]]></abbrev-journal-title>
<issn>2007-4298</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Botánica de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-42982022000300667</article-id>
<article-id pub-id-type="doi">10.17129/botsci.2985</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Anatomía foliar de nueve especies de Tagetes L. (Tageteae: Asteraceae)]]></article-title>
<article-title xml:lang="en"><![CDATA[Leaf anatomy of nine species of Tagetes L. (Tageteae: Asteraceae)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Anaya-Gutiérrez]]></surname>
<given-names><![CDATA[Erick Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Serrato-Cruz]]></surname>
<given-names><![CDATA[Miguel A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vázquez-Sánchez]]></surname>
<given-names><![CDATA[Monserrat]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Chapingo Departamento de Preparatoria Agrícola Área de Biología]]></institution>
<addr-line><![CDATA[Texcoco ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Chapingo Departamento de Fitotecnia ]]></institution>
<addr-line><![CDATA[Texcoco ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Texcoco  ]]></institution>
<addr-line><![CDATA[Texcoco ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<volume>100</volume>
<numero>3</numero>
<fpage>667</fpage>
<lpage>684</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-42982022000300667&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-42982022000300667&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-42982022000300667&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes: Tagetes contiene cerca de 55 especies, su mayor centro de diversificación se encuentra en México con 35. Cerca del 10 % de las especies tienen importancia en el ámbito cultural y económico. A la fecha, se carece de estudios anatómicos en la mayoría de ellas.  Pregunta:  ¿Existen caracteres anatómicos foliares de valor diagnóstico que permitan discriminar entre las nueve especies de Tagetes estudiadas?  Especies de estudio: Tagetes lacera, T. lemmonii, T. linifolia, T. lucida, T. lunulata, T. micrantha, T. parryi, T. stenophylla, T. zypaquirensis.  Sitio de estudio y fecha:  Áreas de distribución natural en el Altiplano Mexicano, Faja Volcánica Transmexicana y Campo Experimental de Fitotecnia, Universidad Autónoma Chapingo, Texcoco, Estado de México, durante el 2017.  Métodos:  Se recolectaron ejemplares botánicos. Sus hojas fueron fijadas y sometidas a técnicas convencionales de anatomía vegetal, se diafanizaron e incluyeron en parafina para su observación y análisis.  Resultados:  Las especies de Tagetes desarrollan hojas enteras y pinnatisectas, el patrón de venación secundaria fue eucamptódromo tornándose reticulódromo distalmente y broquidódromo simple y festoneado. La venación última marginal fue incompleta excepto de T. lunulata. Se observaron abundantes y diversos tricomas, mesofilo dorsiventral e isolateral, haces colaterales con vaina y canales en el mesofilo y en la vena media.  Conclusiones:  La arquitectura y la anatomía foliar de las especies estudiadas revela caracteres comunes en Asteraceae. Sin embargo, en Tagetes el tipo de tricomas, mesofilo, tamaño de los canales y esclerénquima asociada a los haces vasculares son importantes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Tagetes contains about 55 species, its largest center of diversification is in Mexico with 35. Nearly 10 % of the species have cultural and economic importance. To date, anatomical studies are lacking in most of its species.  Question:  Are there foliar anatomical characters with diagnostic value that allow discriminating between the nine species of Tagetes studied?  Study species: T. lacera, T. lemmonii, T. linifolia, T. lucida, T. lunulata, T. micrantha, T. parryi, T. stenophylla, T. zypaquirensis.  Study site and date:  Natural distribution areas in the Mexican Highlands, Trans-Mexican Volcanic Belt and the Genetics Experimental Field, Chapingo Autonomous University, Texcoco, State of Mexico, during 2017.  Methods:  Botanical specimens were collected. Leaves were fixed and subjected to conventional anatomical techniques, as clearing and embedding in paraffin for their observation and analysis.  Results: Tagetes species develop entire and pinnatisect leaves, secondary venation pattern was eucamptodromous becoming reticulodromous distally and simple and festooned brochidodromous. The marginal ultimate venation was incomplete except for T. lunulata. Abundant and diverse trichomes, dorsiventral and isolateral mesophyll, collateral vascular bundles with sheath, and ducts in mesophyll and midvein were observed.  Conclusions:  The leaf architecture and anatomy of the studied species reveals common characters in Asteraceae. However, in Tagetes the type of trichomes, mesophyll, size of ducts, and sclerenchyma associated to vascular bundles are important.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Canales]]></kwd>
<kwd lng="es"><![CDATA[cutícula estriada]]></kwd>
<kwd lng="es"><![CDATA[endemismo]]></kwd>
<kwd lng="es"><![CDATA[Faja Volcánica Transmexicana]]></kwd>
<kwd lng="es"><![CDATA[vena media]]></kwd>
<kwd lng="en"><![CDATA[Cuticle striated]]></kwd>
<kwd lng="en"><![CDATA[endemism]]></kwd>
<kwd lng="en"><![CDATA[middle vein]]></kwd>
<kwd lng="en"><![CDATA[canals]]></kwd>
<kwd lng="en"><![CDATA[Trans-Mexican Volcanic Belt]]></kwd>
</kwd-group>
</article-meta>
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