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Acaricidal Activity of Cyclodipeptides from Bacillus amyloliquefaciens W1 against Tetranychus urticae.
Li, Xing-Yu; Wang, Yue-Hu; Yang, Jun; Cui, Wen-Yan; He, Peng-Jie; Munir, Shahzad; He, Peng-Fei; Wu, Yi-Xin; He, Yue-Qiu.
Afiliación
  • Li XY; Yunnan Agricultural University , Kunming 650201 , China.
  • Wang YH; Microorganism Fermentation Engineer Research Center of Yunnan , Kunming 650217 , China.
  • Yang J; Key Laboratory of Economic Plants and Biotechnology and Yunnan Key Laboratory for Wild Plant Resources , Chinese Academy of Sciences , Kunming 650201 , China.
  • Cui WY; Key Laboratory of Economic Plants and Biotechnology and Yunnan Key Laboratory for Wild Plant Resources , Chinese Academy of Sciences , Kunming 650201 , China.
  • He PJ; Yunnan Agricultural University , Kunming 650201 , China.
  • Munir S; Yunnan Agricultural University , Kunming 650201 , China.
  • He PF; Yunnan Agricultural University , Kunming 650201 , China.
  • Wu YX; Yunnan Agricultural University , Kunming 650201 , China.
  • He YQ; Microorganism Fermentation Engineer Research Center of Yunnan , Kunming 650217 , China.
J Agric Food Chem ; 66(39): 10163-10168, 2018 Oct 03.
Article en En | MEDLINE | ID: mdl-30200767
Bioassay-guided fractionation of the supernatant of the biocontrol strain Bacillus amyloliquefaciens W1 led to the isolation of eight acaricidal cyclodipeptides from the active fractions by column chromatography separation and HPLC purification. The chemical structures of these compounds were identified as cyclo-(Gly-l-Phe), 2, cyclo-(l-Phe- trans-4-OH-l-Pro), 3, cyclo-(Gly-l-Tyr), 4, cyclo-(l-Ala-l-Pro), 5, cyclo-(l-Pro- trans-4-OH-l-Pro), 6, cyclo-(Gly-l-Pro), 7, cyclo-(l-Pro-l-Pro), 8, and cyclo-(l-Tyr- trans-4-OH-l-Pro), 9. Those cyclodipeptides displayed significant acaricidal activities with LC50 values of 13.85-98.24 µM. Cyclo-(l-Tyr- trans-4-OH-l-Pro) (LC50 13.85 µM) was five times more effective than the positive control abamectin (LC50 72.06 µM). The results indicated that the hydroxyl group is an important component. This is the first report on the acaricidal capabilities of cyclodipeptides against Tetranychus urticae. The results revealed that the acaricidal activity of the biocontrol strain B. amyloliquefaciens W1 was dependent on its constituent cyclodipeptides, which have the potential to be safe and environmentally friendly acaricides.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Péptidos Cíclicos / Tetranychidae / Acaricidas / Bacillus amyloliquefaciens Límite: Animals Idioma: En Revista: J Agric Food Chem Año: 2018 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Péptidos Cíclicos / Tetranychidae / Acaricidas / Bacillus amyloliquefaciens Límite: Animals Idioma: En Revista: J Agric Food Chem Año: 2018 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos