<?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>S0871-018X2022000300891</article-id>
<article-id pub-id-type="doi">10.19084/rca.28648</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[El uso de la tolerancia bacteriana a Ni inducida por contaminación (PICT) para evaluar los efectos del proceso de remediación]]></article-title>
<article-title xml:lang="en"><![CDATA[The use of Pollution-Induced Community Tolerance (PICT) to Ni to assess the effects of remediation techniques]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Campillo-Cora*]]></surname>
<given-names><![CDATA[Claudia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arias-Estévez]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández-Calviño]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade de Vigo Departamento de Bioloxía Vexetal e Ciencia do Solo ]]></institution>
<addr-line><![CDATA[Ourense ]]></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>891</fpage>
<lpage>900</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0871-018X2022000300891&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0871-018X2022000300891&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0871-018X2022000300891&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los tratamientos de remediación en suelos contaminados por metales pesados están muy extendidos. No obstante, generalmente, cuando se evalúa su eficacia después de la aplicación, únicamente se tienen en cuenta fracciones del metal (soluble, biodisponible, etc.). Sin embargo, también es relevante conocer el estado de los microorganismos del suelo por las funciones esenciales que desempeñan. En este trabajo se evaluó el efecto de trés tratamientos de remediación en un suelo contaminado por Ni sobre las comunidades bacterianas, en términos de desarrollo de tolerancia al Ni. Los tratamientos de remediación fueron: concha de mejillón (CMT), corteza de pino (CP) y EDTA. También se estableció un control sin tratamientos. La CMT fue el tratamiento más efectivo y menos nocivo, ya que las comunidades bacterianas no desarrollaron tolerancia en respuesta a las adiciones de Ni al suelo. La remediación con CP sólo fue efectiva para niveles de Ni de 500 y 1000 mg·kg-1, pero las comunidades bacterianas desarrollaron tolerancia al Ni para 2000 mg·kg-1. El lavado del suelo con EDTA fue efectivo en términos de desarrollo de tolerancia al Ni por las comunidades bacterianas; no obstante, este procedimiento con EDTA fue demasiado nocivo para las bacterias, perjudicando la salud de la comunidad.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The use of remediation techniques in polluted soils with heavy metals is widespread. However, in general, after remediation application, only metal fractions (soluble, bioavailable, et.) are taken into account in the assessment of their efficacy. In this sense, it is also relevant to know the status of soil microorganisms because of the essential functions they perform. In the present study, the effect of three remediation techniques on the development of bacterial community tolerance to Ni was assessed. The selected remediation techniques were: crushed mussel shell (CMS), pine bark (PB), and EDTA. A no-treatment control was also established. CMS was the most effective and least harmful treatment, as the bacterial communities did not develop tolerance in response to Ni additions to the soil. Ni-remediation with CP was only effective for Ni levels of 500 and 1000 mg·kg-1, but bacterial communities developed tolerance to Ni at 2000 mg·kg-1. Washing Ni out of the soil with EDTA was effective in terms of the development of bacterial community tolerance to Ni; however, EDTA-procedure was too harmful to the bacteria, damaging the health of the community.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[níquel]]></kwd>
<kwd lng="es"><![CDATA[remediación]]></kwd>
<kwd lng="es"><![CDATA[crecimiento bacteriano]]></kwd>
<kwd lng="es"><![CDATA[subproductos]]></kwd>
<kwd lng="es"><![CDATA[contaminación]]></kwd>
<kwd lng="en"><![CDATA[nickel]]></kwd>
<kwd lng="en"><![CDATA[remediation]]></kwd>
<kwd lng="en"><![CDATA[bacterial growth]]></kwd>
<kwd lng="en"><![CDATA[by-products]]></kwd>
<kwd lng="en"><![CDATA[pollution]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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