Antitumor and antifungal activities in endophytic fungi isolated from pharmaceutical plants Taxus mairei, Cephalataxus fortunei and Torreya grandis.
The purpose of this work was to screen the endophytic fungi having antitumor or antifungal activity, which were isolated from the inner barks of three kinds of pharmaceutical plants, Taxus mairei, Cephalataxus fortunei and Torreya grandis, collected from Fujian province, China. Antitumor activity was studied by the MTT assay and antifungal activity was determined by observing fungal growth inhibition. 13.4% of endophytic fungi fermentation broths displayed cytotoxic activity on HL-60 cells at and below a dilution of 1:50, and 6.4% on KB cells. 52.3% of endophytic fungi fermentation broths displayed growth inhibition on at least one pathogenic fungi, such as Neurospora sp., Trichoderma sp. and Fusarium sp. Among all endophytic fungi isolated, the genus Paecilomyces sp. has the highest positive rate of antitumor and antifungal activity. These results indicate that endophytic fungi could be a promising source for antitumor and antifungal bioactive agents.
Huang
Y
Y
The Key Laboratory of Ministry of Education of Cell Biology and Tumor Cell Engineering, School of Life Sciences, Xiamen University, Xiamen 361005, PR China.
Wang
J
J
Li
G
G
Zheng
Z
Z
Su
W
W
D000935:Antifungal Agents / Q000302:isolation & purification* / Q000494:pharmacology; D000970:Antineoplastic Agents / Q000302:isolation & purification* / Q000494:pharmacology; D016923:Cell Death / Q000187:drug effects; D004353:Drug Evaluation, Preclinical; D005658:Fungi / Q000737:chemistry* / Q000302:isolation & purification; D018922:HL-60 Cells; D006801:Humans; D008826:Microbial Sensitivity Tests; D010946:Plants, Medicinal / Q000382:microbiology*; D014407:Tumor Cells, Cultured
D000935:Antifungal Agents; D000970:Antineoplastic Agents