ORIGINAL ARTICLES |
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Secondary Metabolites Produced by an Endophytic Fungus Pestalotiopsis microspora |
G. R. Nalin Rathnayake1, N. Savitri Kumar1, Lalith Jayasinghe1, Hiroshi Araya2, Yoshinori Fujimoto1,2 |
1 National Institute of Fundamental Studies, Hantana Road, Kandy, Sri Lanka; 2 School of Agriculture, Meiji University, Kawasaki, Kanagawa 214-8571, Japan |
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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.
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Keywords
Pestalotiopsis microspora
Manilkara zapota
Endophyte
Pitholide E
Pestalotin
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Fund:Financial support from the National Research Council (Research Grant NRC 12-032) is gratefully acknowledged. |
Corresponding Authors:
Lalith Jayasinghe
E-mail: ulbj2003@yahoo.com,lalith.ja@nifs.ac.lk
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Issue Date: 11 December 2019
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