<?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>0185-3309</journal-id>
<journal-title><![CDATA[Revista mexicana de fitopatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fitopatol]]></abbrev-journal-title>
<issn>0185-3309</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Fitopatología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-33092017000100139</article-id>
<article-id pub-id-type="doi">10.18781/r.mex.fit.1609-2</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[In vitro primer reporte del efecto de nutrimentos y del silicio en el crecimiento de Phaeocryptopus gaeumannii, un patógeno de Pseudotsuga menziesii]]></article-title>
<article-title xml:lang="en"><![CDATA[In vitro first report of nutrients and silicon effect over the growth of Phaeocryptopus gaeumannii a pathogen of Pseudotsuga menziesii]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velázquez-Mendoza]]></surname>
<given-names><![CDATA[Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salgado-Feregrino]]></surname>
<given-names><![CDATA[Oscar Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Yáñez-Morales]]></surname>
<given-names><![CDATA[María de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Casas]]></surname>
<given-names><![CDATA[Marcos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados Postgrados de Ciencias Forestales y Fitopatología ]]></institution>
<addr-line><![CDATA[ Estado de México]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>01</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>01</month>
<year>2017</year>
</pub-date>
<volume>35</volume>
<numero>1</numero>
<fpage>139</fpage>
<lpage>149</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-33092017000100139&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-33092017000100139&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-33092017000100139&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen. El desarrollo de Phaeocryptopus gaeumannii, Ascomycota, causante del Tizón Suizo del follaje de Douglas-fir (Pseudotsuga menziesii), es influenciado por la composición nutrimental de las acículas. El objetivo del estudio fue examinar el efecto de diferentes elementos esenciales, macronutrimentos y micronutrimentos, para las plantas y del silicio (Si), sobre el crecimiento in vitro de P. gaeumannii. Con diferentes nutrimentos y Si se establecieron dos experimentos completamente al azar. El primero fue el cultivo del hongo en Extracto de Malta-Agar al 2 % con 10 tratamientos, y se calculó la Tasa de Crecimiento Relativo instantánea; y el segundo fue en medio líquido de Papa Dextrosa con 21 tratamientos, y se midió masa del micelio. Los macronutrimentos favorecieron el crecimiento de P. gaeumannii. En contraste los micronutrimentos Cu, Mn y Zn inhibieron el desarrollo del hongo en dosis doble. En general, el Si inhibió el crecimiento del hongo. La solución nutritiva completa de macronutrimentos + micronutrimentos más 250 y 1000 ppm de Si, indicaron que estas formulaciones pueden contribuir para eventual control de P. gaeumannii. Este ensayo preliminar in vitro, al parecer es el primer estudio.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract. The development of Phaeocryptopus gaeumannii, Ascomycota, the cause of Swiss needle cast on Douglas-fir foliage (Pseudotsuga menziesii), is influenced by the nutritional composition of the needles. The objective of the study was to examine the effect of different essential elements, macronutrients and micronutrients, for plants and silicon (Si), on the in vitro growth of P. gaeumannii. Two completely random experiments were established with different nutrients. The first was the culture of the fungus in 2 % Malt Extract Agar with 10 treatments, and the relative growth rate was calculated; and the second was in liquid medium of Potato Dextrose with 21 treatments, and the mass of the mycelium was measured. Macronutrients favored the growth of P. gaeumannii. In contrast, Cu, Mn and Zn micronutrients inhibited the development of the fungus in double doses. In general, Si inhibited the growth of the fungus. The complete nutrient solution of macronutrients + micronutrients with 250 and 1000 ppm of Si, indicated that these formulations may contribute to eventual control of P. gaeumannii. This preliminary in vitro trial appears to be the first study.]]></p></abstract>
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<kwd lng="es"><![CDATA[Árbol de navidad]]></kwd>
<kwd lng="es"><![CDATA[coadyuvante]]></kwd>
<kwd lng="es"><![CDATA[macronutrimentos]]></kwd>
<kwd lng="es"><![CDATA[micronutrimentos]]></kwd>
<kwd lng="es"><![CDATA[tizón suizo]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="en"><![CDATA[Christmas tree]]></kwd>
<kwd lng="en"><![CDATA[adjuvant]]></kwd>
<kwd lng="en"><![CDATA[macronutrients]]></kwd>
<kwd lng="en"><![CDATA[micronutrients]]></kwd>
<kwd lng="en"><![CDATA[swiss needle cast]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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