<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342016000200441</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Brasinoesteroides en la agricultura. I]]></article-title>
<article-title xml:lang="en"><![CDATA[Brassinosteroids in agriculture. I]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Silva]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Martínez]]></surname>
<given-names><![CDATA[Ignacio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Tecnológico de Estudios Superiores de Ecatepec  ]]></institution>
<addr-line><![CDATA[ Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2016</year>
</pub-date>
<volume>7</volume>
<numero>2</numero>
<fpage>441</fpage>
<lpage>450</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342016000200441&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342016000200441&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342016000200441&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Las hormonas vegetales, también conocidas como fitohormonas, son sustancias que juegan un papel clave en el desarrollo en las plantas, ya que son capaces de regular de manera predominante los fenómenos fisiológicos de las plantas, como el crecimiento y el desarrollo en respuesta a las señales del medio ambiente como la luz. Los brasinoesteroides son compuestos naturales que se encuentran en pequeñas cantidades en los órganos de las plantas, encontrándose principalmente en polen, hojas, yemas, flores y semillas, caracterizándose como compuestos polihidroxifenólicos. El primero de estos compuestos fue aislado del polen de Brassica napus y el esclarecimiento de su estructura se realizó en el año 1979 por científicos norteamericanos. En la actualidad se conocen más de 45 miembros de la familia de los brasinoesteroides, por lo que constituyen una amplia familia de compuestos de potente actividad biológica, demostrándose que influyen en la germinación, en la rizogénesis, en la floración, en la senescencia, en la abscisión y en los procesos de maduración, y es por esto que se consideran como el sexto grupo de fitohormonas. Los recientes descubrimientos de las propiedades fisiológicas de los brasinoesteroides permiten considerarlos como sustancias naturales altamente promisorias y apropiadas para su uso en la protección de las plantas y aumento en la producción agrícola. Teniendo en cuenta lo antes expuesto el objetivo de este trabajo es dar a conocer algunos de los principales efectos fisiológicos de los brasinoesteroides y sus análogos relacionados con la respuesta defensiva, la morfogénesis y el crecimiento y desarrollo de las plantas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Plant hormones, also acquaintances like fitohormonas, they are substances that they play a paper nail in the development in the plants, since they are able to regulate of prevailing way the physiological phenomena of the plants like the growth, and the development in response to the signs of ambient midway like light. The brassinosteroids are natural compounds that they find in small amounts in the organs of the plants, finding oneself in pollen principally, sheets, yolks, flowers and seeds, being characterized like compounds polihidroxifenólicos. The first one belonging to these compounds was isolated of Brassica napus's pollen and the explanation of his structure came true in the year 1979 for North American scientists. As of the present moment 45 members of the family of the brassinosteroids, which is why they constitute an ample family of compounds of powerful biological activity, proving that influence the germination, in the rizogénesis, in flowering, in the senescencia, in the abscission and in the processes of maturation, and the fact that they consider like the sixth group of fitohormonas is for this reason know themselves over. The recent discoveries of the physiological properties of the brassinosteroids allow regarding as natural substances themselves highly promissory and appropriate for his use in the protection of the plants and increase in the agricultural produce. Having in account it once before the objective of this work was exposed you are to deliver to know some of the principal physiological effects of the brassinosteroids and his analogous related with the defensive answer, the morphogenesis and the growth and development of the plants.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[agricultura]]></kwd>
<kwd lng="es"><![CDATA[brasinoesteroides]]></kwd>
<kwd lng="es"><![CDATA[reguladores del crecimiento vegetal]]></kwd>
<kwd lng="en"><![CDATA[agriculture]]></kwd>
<kwd lng="en"><![CDATA[brassinosteroids]]></kwd>
<kwd lng="en"><![CDATA[the vegetable growth's regulators]]></kwd>
</kwd-group>
</article-meta>
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