Fungicidal activity and constituents of Ageratum conyzoides essential oil from three regions in São Paulo state, Brazil

The chemical composition and antifungal activity of the Ageratum conyzoidesessential oils, obtained from the leaves collected in Ibiúna (1), Ribeirão Pires (2) and Campinas (3) in the São Paulo state, Brazil, were investigated. The essential oils were obtained from A. conyzoidesleaves by hydrodestil...

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Veröffentlicht in:Arquivos do Instituto Biológico (São Paulo) 2015-08, Vol.82
Hauptverfasser: Esper, Renata Haddad, Gonçalez, Edlayne, Felicio, Roberto Carlos, Felicio, Joana Darc
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description The chemical composition and antifungal activity of the Ageratum conyzoidesessential oils, obtained from the leaves collected in Ibiúna (1), Ribeirão Pires (2) and Campinas (3) in the São Paulo state, Brazil, were investigated. The essential oils were obtained from A. conyzoidesleaves by hydrodestilation and analyzed by GC/MS. The chemical composition of the A. conyzoides oil collected in Ribeirão Pires and Ibiúna consisted mainly of precocene I and II. The essential oil from leaves collected in Campinas had only traces of precocene II and a highest proportion of precocene I, α-humulene and (E)-caryophyllene than the oils (1) and (2). The Aspergillus flavus growth was inhibited by essential oils (1) and (2) at 60 and 64%, respectively, and the oil (3) was inactive. On the other hand, the three essential oils inhibited the sporulation of the fungus for more than 120 days. The essential oils of leaves collected in sites that show similarities in the latitude, altitude and average temperatures, as Ribeirão Pires and Ibiúna, showed chemical composition and antifungal activity similar, either, which showed the importance of geo-ecological factors in production of metabolites of the plant. A composição química e a atividade antifúngica do óleo essencial de folhas de Ageratum conyzoides, coletadas em Ibiúna (1), Ribeirão Pires (2) e Campinas (3) no estado de São Paulo, foram investigadas. Os óleos essenciais foram obtidos a partir de folhas de A. conyzoides por hidrodestilação e analisados por CG/EM. A composição química do óleo essencial de A. conyzoides coletadas em Ribeirão Pires e Ibiúna consiste principalmente de precoceno I e II. O óleo essencial das folhas coletadas em Campinas possui apenas traços de precoceno II e uma maior proporção de precoceno I, α-humuleno e (E)-cariofileno quando comparado com os óleos (1) e (2). O crescimento de Aspergillusflavus foi inibido pelos óleos essenciais (1) e (2) em 60 e 64%, respectivamente, enquanto que o óleo (3) foi inativo. Por outro lado, os três óleos essenciais inibiram a esporulação do fungo por mais de 120 dias. Os óleos essenciais de folhas coletadas em locais que mostram semelhanças na latitude, altitude e temperatura média, como Ribeirão Pires e Ibiúna, mostraram composição química e atividade antifúngica semelhante. Isso mostrou a importância dos fatores geo-ecológicos na produção de metabólitos da planta.
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The essential oils were obtained from A. conyzoidesleaves by hydrodestilation and analyzed by GC/MS. The chemical composition of the A. conyzoides oil collected in Ribeirão Pires and Ibiúna consisted mainly of precocene I and II. The essential oil from leaves collected in Campinas had only traces of precocene II and a highest proportion of precocene I, α-humulene and (E)-caryophyllene than the oils (1) and (2). The Aspergillus flavus growth was inhibited by essential oils (1) and (2) at 60 and 64%, respectively, and the oil (3) was inactive. On the other hand, the three essential oils inhibited the sporulation of the fungus for more than 120 days. The essential oils of leaves collected in sites that show similarities in the latitude, altitude and average temperatures, as Ribeirão Pires and Ibiúna, showed chemical composition and antifungal activity similar, either, which showed the importance of geo-ecological factors in production of metabolites of the plant. A composição química e a atividade antifúngica do óleo essencial de folhas de Ageratum conyzoides, coletadas em Ibiúna (1), Ribeirão Pires (2) e Campinas (3) no estado de São Paulo, foram investigadas. Os óleos essenciais foram obtidos a partir de folhas de A. conyzoides por hidrodestilação e analisados por CG/EM. A composição química do óleo essencial de A. conyzoides coletadas em Ribeirão Pires e Ibiúna consiste principalmente de precoceno I e II. O óleo essencial das folhas coletadas em Campinas possui apenas traços de precoceno II e uma maior proporção de precoceno I, α-humuleno e (E)-cariofileno quando comparado com os óleos (1) e (2). O crescimento de Aspergillusflavus foi inibido pelos óleos essenciais (1) e (2) em 60 e 64%, respectivamente, enquanto que o óleo (3) foi inativo. Por outro lado, os três óleos essenciais inibiram a esporulação do fungo por mais de 120 dias. 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The essential oils were obtained from A. conyzoidesleaves by hydrodestilation and analyzed by GC/MS. The chemical composition of the A. conyzoides oil collected in Ribeirão Pires and Ibiúna consisted mainly of precocene I and II. The essential oil from leaves collected in Campinas had only traces of precocene II and a highest proportion of precocene I, α-humulene and (E)-caryophyllene than the oils (1) and (2). The Aspergillus flavus growth was inhibited by essential oils (1) and (2) at 60 and 64%, respectively, and the oil (3) was inactive. On the other hand, the three essential oils inhibited the sporulation of the fungus for more than 120 days. The essential oils of leaves collected in sites that show similarities in the latitude, altitude and average temperatures, as Ribeirão Pires and Ibiúna, showed chemical composition and antifungal activity similar, either, which showed the importance of geo-ecological factors in production of metabolites of the plant. A composição química e a atividade antifúngica do óleo essencial de folhas de Ageratum conyzoides, coletadas em Ibiúna (1), Ribeirão Pires (2) e Campinas (3) no estado de São Paulo, foram investigadas. Os óleos essenciais foram obtidos a partir de folhas de A. conyzoides por hidrodestilação e analisados por CG/EM. A composição química do óleo essencial de A. conyzoides coletadas em Ribeirão Pires e Ibiúna consiste principalmente de precoceno I e II. O óleo essencial das folhas coletadas em Campinas possui apenas traços de precoceno II e uma maior proporção de precoceno I, α-humuleno e (E)-cariofileno quando comparado com os óleos (1) e (2). O crescimento de Aspergillusflavus foi inibido pelos óleos essenciais (1) e (2) em 60 e 64%, respectivamente, enquanto que o óleo (3) foi inativo. Por outro lado, os três óleos essenciais inibiram a esporulação do fungo por mais de 120 dias. 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The essential oils were obtained from A. conyzoidesleaves by hydrodestilation and analyzed by GC/MS. The chemical composition of the A. conyzoides oil collected in Ribeirão Pires and Ibiúna consisted mainly of precocene I and II. The essential oil from leaves collected in Campinas had only traces of precocene II and a highest proportion of precocene I, α-humulene and (E)-caryophyllene than the oils (1) and (2). The Aspergillus flavus growth was inhibited by essential oils (1) and (2) at 60 and 64%, respectively, and the oil (3) was inactive. On the other hand, the three essential oils inhibited the sporulation of the fungus for more than 120 days. The essential oils of leaves collected in sites that show similarities in the latitude, altitude and average temperatures, as Ribeirão Pires and Ibiúna, showed chemical composition and antifungal activity similar, either, which showed the importance of geo-ecological factors in production of metabolites of the plant. A composição química e a atividade antifúngica do óleo essencial de folhas de Ageratum conyzoides, coletadas em Ibiúna (1), Ribeirão Pires (2) e Campinas (3) no estado de São Paulo, foram investigadas. Os óleos essenciais foram obtidos a partir de folhas de A. conyzoides por hidrodestilação e analisados por CG/EM. A composição química do óleo essencial de A. conyzoides coletadas em Ribeirão Pires e Ibiúna consiste principalmente de precoceno I e II. O óleo essencial das folhas coletadas em Campinas possui apenas traços de precoceno II e uma maior proporção de precoceno I, α-humuleno e (E)-cariofileno quando comparado com os óleos (1) e (2). O crescimento de Aspergillusflavus foi inibido pelos óleos essenciais (1) e (2) em 60 e 64%, respectivamente, enquanto que o óleo (3) foi inativo. Por outro lado, os três óleos essenciais inibiram a esporulação do fungo por mais de 120 dias. Os óleos essenciais de folhas coletadas em locais que mostram semelhanças na latitude, altitude e temperatura média, como Ribeirão Pires e Ibiúna, mostraram composição química e atividade antifúngica semelhante. Isso mostrou a importância dos fatores geo-ecológicos na produção de metabólitos da planta.</abstract><pub>Instituto Biológico</pub><doi>10.1590/1808-1657000482013</doi><oa>free_for_read</oa></addata></record>
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subjects Ageratum conyzoides
Aspergillus flavus
Asteraceae
atividade fungicida
óleo essencial
title Fungicidal activity and constituents of Ageratum conyzoides essential oil from three regions in São Paulo state, Brazil
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