Integrative Biology Journals

Natural Products and Bioprospecting ›› 2019, Vol. 9 ›› Issue (6): 411-418.DOI: 10.1007/s13659-019-00225-0

• ORIGINAL ARTICLES • Previous Articles     Next Articles

Secondary Metabolites Produced by an Endophytic Fungus Pestalotiopsis microspora

G. R. Nalin Rathnayake1, N. Savitri Kumar1, Lalith Jayasinghe1, Hiroshi Araya2, Yoshinori Fujimoto1,2   

  1. 1 National Institute of Fundamental Studies, Hantana Road, Kandy, Sri Lanka;
    2 School of Agriculture, Meiji University, Kawasaki, Kanagawa 214-8571, Japan
  • Received:2019-07-01 Revised:2019-11-03 Online:2019-12-11 Published:2019-12-24
  • Contact: Lalith Jayasinghe
  • Supported by:
    Financial support from the National Research Council (Research Grant NRC 12-032) is gratefully acknowledged.

Secondary Metabolites Produced by an Endophytic Fungus Pestalotiopsis microspora

G. R. Nalin Rathnayake1, N. Savitri Kumar1, Lalith Jayasinghe1, Hiroshi Araya2, Yoshinori Fujimoto1,2   

  1. 1 National Institute of Fundamental Studies, Hantana Road, Kandy, Sri Lanka;
    2 School of Agriculture, Meiji University, Kawasaki, Kanagawa 214-8571, Japan
  • 通讯作者: Lalith Jayasinghe
  • 基金资助:
    Financial support from the National Research Council (Research Grant NRC 12-032) is gratefully acknowledged.

Abstract: An endophytic fungus Pestalotiopsis microspora isolated from the fruits of Manilkara zapota was cultured in potato dextrose broth media. Chromatographic separation of the EtOAc extract of the broth and mycelium led to the isolation of a new azaphilonoid named pitholide E (1), in addition to previously identified pitholide B (2), pitholide D (3), pestalotin (LL-P880α) (4), PC-2 (5), LL-P880β (6), tyrosol (7) and 4-oxo-4H-pyran-3-acetic acid (8). An endophytic fungus P. microspora from M. zapota and the isolation of compounds 1-5, 7 and 8 from P. microspora are reported here for the first time.

Key words: Pestalotiopsis microspora, Manilkara zapota, Endophyte, Pitholide E, Pestalotin

摘要: An endophytic fungus Pestalotiopsis microspora isolated from the fruits of Manilkara zapota was cultured in potato dextrose broth media. Chromatographic separation of the EtOAc extract of the broth and mycelium led to the isolation of a new azaphilonoid named pitholide E (1), in addition to previously identified pitholide B (2), pitholide D (3), pestalotin (LL-P880α) (4), PC-2 (5), LL-P880β (6), tyrosol (7) and 4-oxo-4H-pyran-3-acetic acid (8). An endophytic fungus P. microspora from M. zapota and the isolation of compounds 1-5, 7 and 8 from P. microspora are reported here for the first time.

关键词: Pestalotiopsis microspora, Manilkara zapota, Endophyte, Pitholide E, Pestalotin