<?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>0188-8897</journal-id>
<journal-title><![CDATA[Hidrobiológica]]></journal-title>
<abbrev-journal-title><![CDATA[Hidrobiológica]]></abbrev-journal-title>
<issn>0188-8897</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Metropolitana, División de Ciencias Biológicas y de la Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-88972015000200223</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Antibacterial and cytotoxic bioactivity of marine Actinobacteria from Loreto Bay National Park, Mexico]]></article-title>
<article-title xml:lang="es"><![CDATA[Bioactividad antibacterial y citotóxica de actinobacterias marinas del Parque Nacional Bahía de Loreto, México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cardoso-Martínez]]></surname>
<given-names><![CDATA[Faviola]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Becerril-Espinosa]]></surname>
<given-names><![CDATA[Amayaly]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrila-Ortíz]]></surname>
<given-names><![CDATA[Celso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Beltrán]]></surname>
<given-names><![CDATA[Mónica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ocampo-Alvarez]]></surname>
<given-names><![CDATA[Héctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Iñiguez-Martínez]]></surname>
<given-names><![CDATA[Ana M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Soria-Mercado]]></surname>
<given-names><![CDATA[Irma E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Baja California Facultad de Ciencias Marinas ]]></institution>
<addr-line><![CDATA[Ensenada Baja California]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of British Columbia Department of Microbiology & Immunology ]]></institution>
<addr-line><![CDATA[Vancouver BC]]></addr-line>
<country>Canada</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma Metropolitana Iztapalapa Departamento de Hidrobiología]]></institution>
<addr-line><![CDATA[ D.F.]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2015</year>
</pub-date>
<volume>25</volume>
<numero>2</numero>
<fpage>223</fpage>
<lpage>229</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-88972015000200223&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-88972015000200223&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-88972015000200223&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Production of bioactive compounds is intimately linked to the ecology of the producing organisms. Taking this into account, the objective of this study was to evaluate the bioactive properties of isolated Actinobacteria from sea sediments of a high biodiversity zone; under the hypothesis that the ecological characteristics of this site stimulate the presence of unique and bioactive strains that can be screened for new compounds with antibiotic and anticancer properties. The elected zone was the Loreto Bay National Park in the Gulf of California Mexico, a protected natural area, with high diversity of flora and fauna. The bioactive properties of strains from this area were different to that reported elsewhere. The cytotoxic activity tested by in vitro assays was present in 40% of the tested strains and antibacterial activity in 71% of all evaluated strains. This percentage of active strains resulted unusually high when it was compared to similar studies from other regions of the world. This supports the hypothesis of the influence of ecological characteristics of the area of study on the presence of unique and bioactive Actinobacteria. Thereby, the Actinobacteria community found in Loreto Bay, in the Gulf of California, which presented unusual bioactive properties, represents a potential source for obtaining novel compounds with antibacterial and anticancer activity.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La producción de compuestos bioactivos está ííntimamente ligada con la ecología de los organismos que los producen. Tomando esto en cuenta, el objetivo de este estudio fue evaluar las propiedades bioactivas de actinobacterias aisladas en el sedimento marino de una región con alta biodiversidad; bajo la hipótesis de que las características ecológicas de este sitio estimulan la presencia de cepas de actinobacterias únicas y bioactivas que pueden ser útiles en la búsqueda de nuevos compuestos con actividad antibiótica y anticancerígena. La zona de estudio elegida fue el Parque Nacional Bahía de Loreto en el Golfo de California. México, un área natural protegida, con alta diversidad de flora y fauna. Las propiedades bioactivas de las cepas procedentes de esta zona fueron diferentes a la reportada en otros sitios. La actividad citotóxica probada mediante ensayos in vitro estuvo presente en 40% de las cepas probadas y la actividad antibacterial en el 71% de todas las cepas evaluadas. Este porcentaje de cepas activas resultó inusualmente alto cuando se comparó con estudios realizados en otros sitios del mundo. Esto apoya la hipótesis de la influencia de las características ecológicas de la zona de estudio sobre la presencia de actinobacterias únicas y bioactivas. Por lo tanto, la comunidad de actinobacterias encontrada en Bahía de Loreto, en el Golfo de California, la cual presentó propiedades bioactivas inusuales, representa un recurso potencial para la obtención de nuevos compuestos con actividad antibiótica y anticancerígena.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Antibiotic activity]]></kwd>
<kwd lng="en"><![CDATA[Gulf of California]]></kwd>
<kwd lng="en"><![CDATA[Loreto Bay]]></kwd>
<kwd lng="en"><![CDATA[Marine Actinobacteria]]></kwd>
<kwd lng="en"><![CDATA[Salinispora]]></kwd>
<kwd lng="es"><![CDATA[Actinobacterias marinas]]></kwd>
<kwd lng="es"><![CDATA[actividad antibiótica]]></kwd>
<kwd lng="es"><![CDATA[Bahía de Loreto]]></kwd>
<kwd lng="es"><![CDATA[Golfo de California]]></kwd>
<kwd lng="es"><![CDATA[Salinispora]]></kwd>
</kwd-group>
</article-meta>
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