<?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>0188-4999</journal-id>
<journal-title><![CDATA[Revista internacional de contaminación ambiental]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Int. Contam. Ambient]]></abbrev-journal-title>
<issn>0188-4999</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias de la Atmósfera y Cambio Climático]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-49992024000100123</article-id>
<article-id pub-id-type="doi">10.20937/rica.54898</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Ionoma radical de Sedum praealtum por microanálisis SEM-EDX en presencia de arsénico y cadmio y la adición de agentes quelante]]></article-title>
<article-title xml:lang="en"><![CDATA[Radical ionome of Sedum praealtum by SEM-EDX microanalysis in presence of arsenic and cadmium and chelating agents&#8217; addition]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz-Orea]]></surname>
<given-names><![CDATA[Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Gómez]]></surname>
<given-names><![CDATA[María Fernanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Dorantes]]></surname>
<given-names><![CDATA[Angélica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Politécnico Nacional Centro de Investigación y Estudios Avanzados ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional Escuela Nacional de Ciencias Biológicas ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2024</year>
</pub-date>
<volume>40</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992024000100123&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992024000100123&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992024000100123&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La ionómica considera la evaluación cualitativa y cuantitativa de la composición elemental y sus cambios en la fisiología de los organismos. La aplicación de la técnica de microscopía electrónica de barrido con la evaluación espectroscópica de la energía de dispersión por rayos X (SEM-EDX: Scanning Electron Microscopy with Energy-Dispersive X-ray Spectroscopy) es un análisis adecuado de ella, ya que informa sobre la localización y composición química elemental en muestras biológicas. En este trabajo se analizó el ionoma radical de Sedum praealtum bajo la presencia de arsénico y cadmio con la adición de agentes quelantes. Se evaluó la distribución elemental semicuantitativa de P, K, Ca, Cu, Fe, Mn, Mg, Ni, Zn, Mo, As y Cd por microanálisis SEM-EDX en fragmentos de raíz agrupados en cuatro regiones desde el ápice hasta el inicio de la zona de diferenciación. Se obtuvo como patrón de distribución importante el de la sinergia entre el As y el Cd y el agente quelante, el ácido etilenodiaminatetraacético (EDTA). Se obtuvo el mayor porcentaje elemental bajo la sinergia entre el As y el Cd y el agente quelante, el ácido etilendiaminotetraacético (EDTA) como patrón de la inmovilización elemental en la superficie radical de esta especie, que dio evidencia de los sitios de absorción y transporte de nutrientes en las zonas radicales.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Ionomics considers the qualitative and quantitative evaluation of elemental composition and its changes in the organism physiology. The scanning electron microscopy with energy-dispersive x-ray spectroscopy evaluation (SEM-EDX) technique is and adequate analysis for it because informs about elements localization and chemical composition in biological samples. The present work analyzed the Sedum praealtum radical ionome by the effect of arsenic and cadmium presence and chelating agent addition. Qualitative elemental distribution of P, K, Ca, Cu, Fe, Mn, Mg, Ni, Zn, Mo, As and Cd was evaluated by SEM-EDX microanalysis in root fragments organized in four regions that involved the root tip to the early differentiation zone. The most important pattern obtained was the synergy between As, Cd and ethylenediamine tetraacetic acid chelating agent (EDTA). The highest elemental percentage was obtained under the synergy between As, Cd and ethylenediaminetetraacetic acid chelating agent (EDTA), as an elemental immobilization pattern in the radical surface of this plant species, giving evidence of the sites to absorption and transport of nutrients in the root zones.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[microscopía electrónica de barrido]]></kwd>
<kwd lng="es"><![CDATA[rayos-X]]></kwd>
<kwd lng="es"><![CDATA[raíz]]></kwd>
<kwd lng="es"><![CDATA[análisis elemental]]></kwd>
<kwd lng="en"><![CDATA[Scanning electron microscopy]]></kwd>
<kwd lng="en"><![CDATA[X-ray]]></kwd>
<kwd lng="en"><![CDATA[roots]]></kwd>
<kwd lng="en"><![CDATA[elemental analysis]]></kwd>
</kwd-group>
</article-meta>
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