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Antifungal activity of 8-methoxynaphthalen-1-ol isolated from the endophytic fungus Diatrype palmicola MFLUCC 17-0313 against the plant pathogenic fungus Athelia rolfsii on tomatoes.
Tanapichatsakul, Chutima; Pansanit, Acharavadee; Monggoot, Sakon; Brooks, Siraprapa; Prachya, Surasak; Kittakoop, Prasat; Panuwet, Parinya; Pripdeevech, Patcharee.
Afiliación
  • Tanapichatsakul C; School of Science, Mae Fah Luang University, Muang, Chiang Rai, Thailand.
  • Pansanit A; School of Science, Mae Fah Luang University, Muang, Chiang Rai, Thailand.
  • Monggoot S; Institute of Beauty and Health Sciences Co.,Ltd. (IBHS/BKK), Sakdibhornssup Bldg., Makkasan, Ratchathewi, Bangkok, Thailand.
  • Brooks S; School of Science, Mae Fah Luang University, Muang, Chiang Rai, Thailand.
  • Prachya S; Chulabhorn Research Institute, Laksi, Bangkok, Thailand.
  • Kittakoop P; Chulabhorn Research Institute, Laksi, Bangkok, Thailand.
  • Panuwet P; Program in Chemical Sciences, Chulabhorn Royal Academy, Chulabhorn Graduate Institute, Laksi, Bangkok, Thailand.
  • Pripdeevech P; Center of Excellence on Environmental Health and Toxicology (EHT), CHE, Ministry of Education, Bangkok, Thailand.
PeerJ ; 8: e9103, 2020.
Article en En | MEDLINE | ID: mdl-32411538
Thirty-four endophytic fungal isolates were obtained from the leaves of the medicinal plant Polyscias fruticosa, and their antagonistic activities against the growth of the common tomatoes plant pathogenic fungus Athelia rolfsii were initially screened using a dual culture assay. The endophytic fungus MFLUCC 17-0313, which was later molecularly identified as Diatrype palmicola, displayed the highest inhibition percentage (49.98%) in comparison to the others. This fungus was then chosen for further evaluation. Its culture broth and mycelia from a 10 L scale were separated and extracted using ethyl acetate, methanol, and hexane. Each extract was tested for antifungal activity against the same pathogen using a disc diffusion assay. Only the crude hexane extract of fungal mycelium showed antifungal activity. The hexane extract was fractioned using sephadex gel filtration chromatography and each fraction was tested for antifungal activity until the one with the highest inhibition percentage was obtained. The bioactive compound was identified as 8-methoxynaphthalen-1-ol using nuclear magnetic resonance spectroscopy and mass spectrometry. The minimum inhibition concentration of 8-methoxynaphthalen-1-ol was demonstrated at 250 µg/mL against the selected pathogen. Using the leaf assay, the solution of 8-methoxynapthalen-1-ol was tested for phytotoxic activity against A. rolfsii and was found to have no phytotoxic effects. These results showed that 8-methoxynaphthalen-1-ol has the potential for controlling the growth of A. rolfsii, the cause of Southern blight disease on tomatoes. This study may provide the foundation for future use of this compound as a biofungicide.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: PeerJ Año: 2020 Tipo del documento: Article País de afiliación: Tailandia Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: PeerJ Año: 2020 Tipo del documento: Article País de afiliación: Tailandia Pais de publicación: Estados Unidos