<?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>1665-1456</journal-id>
<journal-title><![CDATA[Biotecnia]]></journal-title>
<abbrev-journal-title><![CDATA[Biotecnia]]></abbrev-journal-title>
<issn>1665-1456</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Sonora, División de Ciencias Biológicas y de la Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-14562025000100104</article-id>
<article-id pub-id-type="doi">10.18633/biotecnia.v27.2405</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Evaluation of Bromelia karatas as a bioindicator of lead contamination]]></article-title>
<article-title xml:lang="es"><![CDATA[Evaluación de Bromelia karatas como un bioindicador de contaminación de plomo]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Enciso Sáenz]]></surname>
<given-names><![CDATA[Samuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruíz Balcázar]]></surname>
<given-names><![CDATA[Antonio de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz Lau]]></surname>
<given-names><![CDATA[Nancy]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Enciso Pinto]]></surname>
<given-names><![CDATA[Sofía]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Luján Hidalgo]]></surname>
<given-names><![CDATA[María Celina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villalobos Maldonado]]></surname>
<given-names><![CDATA[Juan José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Tecnológico Nacional de México Instituto Tecnológico de Tuxtla Gutiérrez ]]></institution>
<addr-line><![CDATA[Tuxtla Gutiérrez Chiapas]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2025</year>
</pub-date>
<volume>27</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-14562025000100104&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-14562025000100104&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-14562025000100104&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This research aimed to analyze the ability of the plant Bromelia karatas to tolerate and bioaccumulate lead (Pb) in its tissues, as well as its potential use as a bioindicator of contamination. The research was conducted under controlled conditions, exposing the plants to different concentrations of Pb for 63 d and measuring morphometric variables such as leaf count, height, and chlorophyll content. Statistical analyses, including ANOVA and Tukey HSD, showed that the plant can tolerate Pb levels without significant differences in growth and chlorophyll compared to unexposed plants. At the end of the experiment, the presence of Pb in the plant tissues (leaves and roots) was analyzed and detected using ICP-OES equipment. This research revealed the potential of Bromelia karatas as a bioindicator of Pb contamination in soil, as it exhibited visible symptoms of leaf damage at high doses of the pollutant. The low cost, ease of reproduction, and portability of bromeliads compared to other bioindicators make it a preferable option for environmental biomonitoring, highlighting its effectiveness and affordability.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Esta investigación tiene como objetivo analizar la capacidad de la planta Bromelia karatas para tolerar y bioacumular plomo (Pb) en sus tejidos, así como su potencial uso como bioindicador de contaminación. La investigación se realizó en condiciones controladas, exponiendo las plantas a diferentes concentraciones de Pb durante 63 d y midiendo variables morfométricas como el conteo de hojas, altura y contenido de clorofila. Los análisis estadísticos, incluyendo ANOVA y Tukey HSD, mostraron que la planta puede tolerar niveles de Pb sin diferencias significativas en el crecimiento y la clorofila en comparación con las plantas no expuestas. Al final del experimento, se analizó y detectó la presencia de Pb en los tejidos de la planta (hojas y raíces) mediante un equipo ICP-OES. Esta investigación reveló el potencial de Bromelia karatas como bioindicador de contaminación por Pb en el suelo, ya que exhibió síntomas visibles de daño foliar a altas dosis del contaminante. El bajo costo, la facilidad de reproducción y la portabilidad de las bromelias en comparación con otros bioindicadores la convierten en una opción preferible para el biomonitoreo ambiental, destacando su efectividad y asequibilidad.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Environmental pollution]]></kwd>
<kwd lng="en"><![CDATA[absorption]]></kwd>
<kwd lng="en"><![CDATA[metals toxic]]></kwd>
<kwd lng="en"><![CDATA[ICP-OES]]></kwd>
<kwd lng="es"><![CDATA[Contaminación ambiental]]></kwd>
<kwd lng="es"><![CDATA[absorción]]></kwd>
<kwd lng="es"><![CDATA[metales tóxicos]]></kwd>
<kwd lng="es"><![CDATA[ICP-OES]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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