Secondary metabolites from <italic>Corynespora cassiicola</italic> J9<italic>,</italic> an endophytic fungus associated with <italic>Blumea balsamifera</italic> (L.) DC.

Chao Yuan; Yu-hua Guo; Ying-bo Zhang; Hong-fa Wang; Xuan HU; Dan Wang; Ling-liang Guan; Fu-lai YU; Gang LI

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Secondary metabolites from Corynespora cassiicola J9, an endophytic fungus associated with Blumea balsamifera (L.) DC.

VernacularTitle:艾纳香内生真菌Corynespora cassiicola J9次生代谢产物研究
Author: Chao YUAN ^{1
,

2} ; Yu-hua GUO ³ ; Ying-bo ZHANG ^{1
,

2} ; Hong-fa WANG ^{1
,

2} ; Xuan HU ^{1
,

2} ; Dan WANG ^{1
,

2} ; Ling-liang GUAN ^{1
,

2} ; Fu-lai YU ^{1
,

2} ; Gang LI ⁴
Author Information

1. Tropical Crops Genetic Resources Institute, CATAS, Danzhou 571737, China
2. Hainan Engineering Research Center for Blumea balsamifera, Danzhou 571737, China
3. Shandong Drug and Food Vocational College, Weihai 264210, China
4. Department of Natural Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Qingdao University, Qingdao 266021, China
Publication Type:Research Article
Keywords: italic>Blumea balsamifera (L.) DC.; fungal endophyte; epsidone; pesticide activity; secondary metabolite
From: Acta Pharmaceutica Sinica 2019;54(5):892-896
CountryChina
Language:Chinese
Abstract: Chemical investigation on the rice culture of Corynespora cassiicola J9, an endophyte inhabiting in Blumea balsamifera (L.) DC. resulted in isolation of eight compounds, including a new depsidone derivative, corynether C (1), and seven analogues, corynether B (2), corynetherlactone A (3), corynether A (4), diaryl ether (5), corynesidone C (6), corynesidone D (7), and corynesidone A (8). Their structures were deduced based on 1D and 2D NMR spectroscopy, and HR-ESI-MS data. All of the isolated compounds were evaluated for inhibitory activities against Lissorhoptrus oryzophilus Kuschel by the leaf spray assay. Unfortunately, none of them showed inhibitory effects.