Chemical composition of the essential oil of Psidium guajava leaves and its toxicity against Sclerotinia sclerotiorum
Globally, the fungus Sclerotinia sclerotiorum is considered as one of the most important phytopathogens, since it affects the production of several economically important crops. Further, it is difficult to control, thus increasing the use of pesticides. Therefore, the search for new substances, espe...
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Londrina
2018-03-01
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| Series: | Semina: Ciências Agrárias |
| Subjects: | |
| Online Access: | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/27652 |
| _version_ | 1828380754630934528 |
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| author | Elizabeth Aparecida Josefi Silva Vanessa Paula da Silva Cassia Cristina Fernandes Alves José Milton Alves Edson Luiz Souchie Luiz Cláudio Almeida Barbosa |
| author_facet | Elizabeth Aparecida Josefi Silva Vanessa Paula da Silva Cassia Cristina Fernandes Alves José Milton Alves Edson Luiz Souchie Luiz Cláudio Almeida Barbosa |
| author_sort | Elizabeth Aparecida Josefi Silva |
| collection | DOAJ |
| description | Globally, the fungus Sclerotinia sclerotiorum is considered as one of the most important phytopathogens, since it affects the production of several economically important crops. Further, it is difficult to control, thus increasing the use of pesticides. Therefore, the search for new substances, especially those extracted from plants, has received special attention to control this plant pathogen. The objective of the present study was to evaluate the yield and chemical composition of the essential oil extracted from the fresh leaves of guava collected during the rainy and dry seasons, and also to evaluate its toxicity against S. sclerotiorum. The experiment was a completely randomized design with five treatments and six replicates. The essential oil was extracted by hydrodistillation of the leaves and analyzed by gas chromatography-flame ionization detector and gas chromatography-mass spectrometry. The main compounds identified in the essential oil were trans-caryophyllene and ?-humulene. The essential oil at a concentration of 300 ?L exhibited 90% inhibition of the mycelial growth of S. sclerotiorum. This confirmed the antifungal potential of the essential oil of the guava leaves during both the sampling seasons. |
| first_indexed | 2024-12-10T04:02:53Z |
| format | Article |
| id | doaj.art-c6fd85f65de946f5b57e1c962a241aef |
| institution | Directory Open Access Journal |
| issn | 1676-546X 1679-0359 |
| language | English |
| last_indexed | 2024-12-10T04:02:53Z |
| publishDate | 2018-03-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Agrárias |
| spelling | doaj.art-c6fd85f65de946f5b57e1c962a241aef2022-12-22T02:02:56ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592018-03-0139286587410.5433/1679-0359.2018v39n2p86517008Chemical composition of the essential oil of Psidium guajava leaves and its toxicity against Sclerotinia sclerotiorumElizabeth Aparecida Josefi Silva0Vanessa Paula da Silva1Cassia Cristina Fernandes Alves2José Milton Alves3Edson Luiz Souchie4Luiz Cláudio Almeida Barbosa5Instituto Federal GoianoInstituto Federal GoianoInstituto Federal GoianoInstituto Federal GoianoInstituto Federal GoianoInstituto Federal GoianoGlobally, the fungus Sclerotinia sclerotiorum is considered as one of the most important phytopathogens, since it affects the production of several economically important crops. Further, it is difficult to control, thus increasing the use of pesticides. Therefore, the search for new substances, especially those extracted from plants, has received special attention to control this plant pathogen. The objective of the present study was to evaluate the yield and chemical composition of the essential oil extracted from the fresh leaves of guava collected during the rainy and dry seasons, and also to evaluate its toxicity against S. sclerotiorum. The experiment was a completely randomized design with five treatments and six replicates. The essential oil was extracted by hydrodistillation of the leaves and analyzed by gas chromatography-flame ionization detector and gas chromatography-mass spectrometry. The main compounds identified in the essential oil were trans-caryophyllene and ?-humulene. The essential oil at a concentration of 300 ?L exhibited 90% inhibition of the mycelial growth of S. sclerotiorum. This confirmed the antifungal potential of the essential oil of the guava leaves during both the sampling seasons.http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/27652Atividade antifúngicaFungos fitopatogênicosMetabólitos secundáriosPsidium guajavaSesquiterpenos. |
| spellingShingle | Elizabeth Aparecida Josefi Silva Vanessa Paula da Silva Cassia Cristina Fernandes Alves José Milton Alves Edson Luiz Souchie Luiz Cláudio Almeida Barbosa Chemical composition of the essential oil of Psidium guajava leaves and its toxicity against Sclerotinia sclerotiorum Semina: Ciências Agrárias Atividade antifúngica Fungos fitopatogênicos Metabólitos secundários Psidium guajava Sesquiterpenos. |
| title | Chemical composition of the essential oil of Psidium guajava leaves and its toxicity against Sclerotinia sclerotiorum |
| title_full | Chemical composition of the essential oil of Psidium guajava leaves and its toxicity against Sclerotinia sclerotiorum |
| title_fullStr | Chemical composition of the essential oil of Psidium guajava leaves and its toxicity against Sclerotinia sclerotiorum |
| title_full_unstemmed | Chemical composition of the essential oil of Psidium guajava leaves and its toxicity against Sclerotinia sclerotiorum |
| title_short | Chemical composition of the essential oil of Psidium guajava leaves and its toxicity against Sclerotinia sclerotiorum |
| title_sort | chemical composition of the essential oil of psidium guajava leaves and its toxicity against sclerotinia sclerotiorum |
| topic | Atividade antifúngica Fungos fitopatogênicos Metabólitos secundários Psidium guajava Sesquiterpenos. |
| url | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/27652 |
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