<?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>2007-4298</journal-id>
<journal-title><![CDATA[Botanical Sciences]]></journal-title>
<abbrev-journal-title><![CDATA[Bot. sci]]></abbrev-journal-title>
<issn>2007-4298</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Botánica de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-42982020000400545</article-id>
<article-id pub-id-type="doi">10.17129/botsci.2624</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Biological activity and flavonoid profile of five species of the Bursera genus]]></article-title>
<article-title xml:lang="es"><![CDATA[Actividad biológica y perfil de flavonoides de cinco especies del género Bursera]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Monroy]]></surname>
<given-names><![CDATA[Ma. Beatriz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Bores]]></surname>
<given-names><![CDATA[Ana María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Contreras-Jiménez]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[David Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[San Miguel-Chávez]]></surname>
<given-names><![CDATA[Rubén]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guevara-Fefer]]></surname>
<given-names><![CDATA[Patricia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Ciencias Departamento de Ecología y Recursos Naturales]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Estudios Superiores-Iztacala UBIPRO]]></institution>
<addr-line><![CDATA[Tlalnepantla ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Benemérita Universidad Autónoma de Puebla  ]]></institution>
<addr-line><![CDATA[ Puebla]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Colegio de Postgraduados Laboratorio de Fitoquímica ]]></institution>
<addr-line><![CDATA[Montecillo Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>98</volume>
<numero>4</numero>
<fpage>545</fpage>
<lpage>553</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-42982020000400545&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-42982020000400545&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-42982020000400545&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: The genus Bursera Jacq. ex. L. concentrates its diversity in Mexico. Among the secondary metabolites that can be isolated from organic its extracts are flavonoids and lignans.  Research question: Do the biological activity of the hydroalcoholic extracts from five Bursera species studied depend on their flavonoid content?  Study site: Oaxaca, Mexico.  Methods: The extracts of B. aptera Ramírez, B. fagaroides (Kunth) Engl., B. schlechtendalii Engl., B. galeottiana Engl., B. morelensis Ramírez were analysed by High Resolution Liquid Chromatography (HPLC) to determine their flavonoid composition. The antiradical DPPH, anti-inflammatory, antibacterial and antifungal activities of the extracts were determined.  Results: Phlorizin and quercetin were conserved in both stems and leaves of the five species studied. The phloretin was present only in the leaves of B. aptera. The highest antibacterial activity was observed against Staphylococcus epidermidis and Salmonella typhimurium by the extracts of leaves of B. aptera (MIC 0.002 mg/mL) and the stems of B. fagaroides (MIC 0.015 mg/mL). The extract of stems of B. morelensis against Fusarium boothii presented the highest antifungal effect (lower than 50 &#956;g/mL). The anti-inflammatory activity of B. fagaroides was 51.24 % edema inhibition (1 mg/ear) compare to 78.76 % of indomethacin (0.358 mg/ear).  Conclusion: The presence of flavonoids in five species studied suggests the richness of these compounds in Bursera genus. The biological activities studied indicated the potential medicinal use of these species and the role that the flavonoids play in plant physiology.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen   Antecedentes:  el género Bursera Jacq. ex. L. concentra su diversidad en México. Los metabolitos secundarios que pueden aislarse de sus extractos orgánicos son los flavonoides y los lignanos.  Pregunta de investigación:  ¿La actividad biológica de los extractos de las cinco especies de Bursera estudiadas depende de su contenido de flavonoides?  Sitio de estudio:  Oaxaca, México.  Métodos:  Los extractos hidroalcohólicos de B. aptera Ramírez, B. fagaroides (Kunth) Engl., B. schlechtendalii Engl., B. galeottiana Engl., B. morelensis Ramírez, se analizaron por HPLC para determinar su composición de flavonoides y se reporta su actividad antiradicalaria al DPPH, antiinflamatoria, antibacteriana y antifúngica.  Resultados:  La florizina y la quercetina se conservaron tanto en tallos como en hojas de las cinco especies estudiadas. La floretina está presente solo en las hojas de B. aptera. La mayor actividad antibacteriana se observó contra Staphylococcus epidermidis y Salmonella typhimurium por los extractos de hojas de B. aptera y tallos de B. fagaroides. El extracto de tallos de B. morelensis contra Fusarium boothii presentó el mayor efecto antifúngico. La actividad antiinflamatoria de B. fagaroides fue 51.24% de inhibición del edema (1 mg/oreja) en comparación con el 78.76% de la indometacina (0.358 mg /oreja).  Conclusión: La presencia de flavonoides en las cinco especies estudiadas sugiere la riqueza de estos compuestos en el género Bursera. Las actividades biológicas estudiadas indicaron el posible uso medicinal de estas especies y el papel que juegan los flavonoides en la fisiología de las plantas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Antibacterial]]></kwd>
<kwd lng="en"><![CDATA[antifungal]]></kwd>
<kwd lng="en"><![CDATA[anti-inflammatory]]></kwd>
<kwd lng="en"><![CDATA[DPPH]]></kwd>
<kwd lng="en"><![CDATA[leaves]]></kwd>
<kwd lng="en"><![CDATA[stems]]></kwd>
<kwd lng="es"><![CDATA[antibacteriano]]></kwd>
<kwd lng="es"><![CDATA[antifúngico]]></kwd>
<kwd lng="es"><![CDATA[antiinflamatorio]]></kwd>
<kwd lng="es"><![CDATA[DPPH]]></kwd>
<kwd lng="es"><![CDATA[hojas]]></kwd>
<kwd lng="es"><![CDATA[tallos]]></kwd>
</kwd-group>
</article-meta>
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