<?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>S0871-018X2022000300071</article-id>
<article-id pub-id-type="doi">10.19084/rca.28379</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio de las comunidades microbianas de suelos agrícolas orgánicos y convencionales lusitanos mediante análisis de ácidos grasos fosfolípidos]]></article-title>
<article-title xml:lang="en"><![CDATA[Study of microbial communities in Lusitanian organic and conventional agricultural soils by phospholipid fatty acid analysis]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[Diego Soto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miguel]]></surname>
<given-names><![CDATA[Vanesa Santás]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Calviño]]></surname>
<given-names><![CDATA[David Fernández]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Politécnica de Cartagena Departmento de Ingeniería Agronómica ]]></institution>
<addr-line><![CDATA[Cartagena ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidade de Vigo Facultad de Ciencias Departamento de Biología Vegetal y Ciencia del Suelo]]></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>71</fpage>
<lpage>80</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0871-018X2022000300071&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0871-018X2022000300071&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0871-018X2022000300071&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La comunidad microbiana de un suelo está condicionada por las condiciones del suelo y por el tipo de manejo que se hace del mismo. En este estudio se han analizado, mediante análisis de ácidos grasos fosfolípidos (PLFAs), las comunidades microbianas de varios suelos agrícolas, de la zona pedoclimática lusitana, bajo dos tipos de sistemas: convencional y orgánico. Los suelos orgánicos presentaron una mayor cantidad de PLFAs totales y asociados a bacterias y a hongos arbusculares micorrízicos. Observamos que las cantidades de estos ácidos grasos estaban relacionados con la cantidad de materia orgánica y de nitrógeno total del suelo. Por otro lado, en los suelos convencionales encontramos una mayor cantidad de ácidos grasos relacionados con ascomicetos y basidiomicetos y una mayor proporción hongos/bacterias. Esto está directamente correlacionado con una mayor proporción de macro-agregados (&gt; 2 cm) e inversamente correlacionado con la cantidad de nitrógeno.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The microbial community of a soil is determined by the soil properties and by the type of soil management. In this study, the microbial communities of several agricultural soils in the Lusitanian pedoclimatic zone, under two management systems (conventional and organic), were characterized by phospholipid fatty acids (PLFAs) analysis. Organic soils showed a higher amount of total PLFAs and PLFAs associated with bacteria and arbuscular mycorrhizal fungi. We observed that the amounts of these fatty acids were related to the amount of soil organic matter and total nitrogen. On the other hand, in conventional soils we found a higher amount of fatty acids related to ascomycetes and basidiomycetes and a higher fungi/bacteria ratio. This is directly correlated with a higher proportion of macro-aggregates (&gt; 2 cm) and inversely correlated with the amount of nitrogen.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[PLFA]]></kwd>
<kwd lng="es"><![CDATA[microbiología]]></kwd>
<kwd lng="es"><![CDATA[edafología]]></kwd>
<kwd lng="es"><![CDATA[hongos]]></kwd>
<kwd lng="es"><![CDATA[bacterias]]></kwd>
<kwd lng="en"><![CDATA[PLFA]]></kwd>
<kwd lng="en"><![CDATA[microbiology]]></kwd>
<kwd lng="en"><![CDATA[soil science]]></kwd>
<kwd lng="en"><![CDATA[fungi]]></kwd>
<kwd lng="en"><![CDATA[bacteria]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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