<?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>0871-018X</journal-id>
<journal-title><![CDATA[Revista de Ciências Agrárias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. de Ciências Agrárias]]></abbrev-journal-title>
<issn>0871-018X</issn>
<publisher>
<publisher-name><![CDATA[Sociedade de Ciências Agrárias de Portugal]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0871-018X2022000300761</article-id>
<article-id pub-id-type="doi">10.19084/rca.28612</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[El nivel de agua modula la respuesta microbiológica del suelo al ozono troposférico elevado en trigo]]></article-title>
<article-title xml:lang="en"><![CDATA[Water level modulates the soil microbial response to elevated tropospheric ozone in wheat]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Canales]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Navas]]></surname>
<given-names><![CDATA[Mariela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moliner]]></surname>
<given-names><![CDATA[Ana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mariscal-Sancho]]></surname>
<given-names><![CDATA[Ignacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bermejo-Bermejo]]></surname>
<given-names><![CDATA[Victoria]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Fernández]]></surname>
<given-names><![CDATA[Ignacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hontoria]]></surname>
<given-names><![CDATA[Chiquinquirá]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Politécnica de Madrid Dpto. Producción Agraria-Unidad de Edafología E.T.S.I. Agronómica, Alimentaria y de Biosistemas (ETSIAAB)]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentario  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>España</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas Departamento de Medio Ambiente ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>45</volume>
<numero>4</numero>
<fpage>761</fpage>
<lpage>770</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0871-018X2022000300761&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0871-018X2022000300761&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0871-018X2022000300761&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El nivel de agua modula el impacto del ozono troposférico sobre la planta, aunque se desconoce hasta qué punto este efecto se traslada a la microbiota del suelo. Se ha investigado si la disponibilidad de agua puede alterar la respuesta microbiana a elevadas concentraciones de ozono en una variedad de trigo sensible al ozono. Se estableció un ensayo con cámaras de techo descubierto con cuatro niveles de ozono (Preindustrial; Actual; Actual+20 ppb; Actual+40 ppb) y dos niveles del riego (estrés y óptimo). La fracción rizosférica del suelo (0-5 cm) mostró mayor sensibilidad al nivel de ozono y de riego que la fracción de resto (&#8220;bulk&#8221;). El aire Actual fue el tratamiento menos sensible, y el Actual+20 el más sensible al riego. Independientemente del nivel de riego, el aire Actual y Actual+40 mostraron características microbiológicas bien contrastadas. El estrés hídrico altera el comportamiento intermedio de Actual+20 aumentando su cociente metabólico. El aire Preindustrial tendió a comportase como Actual+20 en ambos niveles de riego (menor qMic y mayor qCO2), por lo que cambios de ozono con respecto al Actual provocan una menor eficiencia en el uso del C. El riego modula el efecto del ozono sobre la microbiota del suelo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Water level modulates the tropospheric ozone impact on the plant, although the extent to which this effect is transferred to the soil microbiota is unknown. We investigate whether water availability can alter the microbial response to elevated ozone concentrations in an ozone-sensitive wheat variety. An open-top chamber trial was set up with four ozone levels (Pre-industrial; Ambient; Ambient+20 ppb; Ambient+40 ppb) and two irrigation levels (stress and optimum). The rhizosphere fraction of the soil (0-5 cm) showed higher sensitivity to ozone and irrigation level than the bulk fraction. Ambient air was the least sensitive treatment, and Ambient+20 was the most sensitive to irrigation. Regardless of the irrigation level, Ambient and Ambient+40 air showed contrasting microbiological characteristics. Water stress alters the intermediate behaviour of Ambient+20 by increasing its metabolic quotient. Pre-industrial air tended to behave like Ambient+20 at both irrigation levels (lower qMic and higher qCO2), so changes in ozone with respect to Ambient lead to lower efficiency of C use. Irrigation modulates the effect of ozone on soil microbiota.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Ozono]]></kwd>
<kwd lng="es"><![CDATA[OTC]]></kwd>
<kwd lng="es"><![CDATA[Trigo]]></kwd>
<kwd lng="es"><![CDATA[APC]]></kwd>
<kwd lng="es"><![CDATA[Qpcr]]></kwd>
<kwd lng="en"><![CDATA[Ozone]]></kwd>
<kwd lng="en"><![CDATA[OTC]]></kwd>
<kwd lng="en"><![CDATA[wheat]]></kwd>
<kwd lng="en"><![CDATA[PCA]]></kwd>
<kwd lng="en"><![CDATA[qPCR]]></kwd>
</kwd-group>
</article-meta>
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