生物技术通报 ›› 2013, Vol. 0 ›› Issue (1): 151-155.

• 研究报告 • 上一篇    下一篇

海洋真菌梅花状青霉FS83 抗菌抗肿瘤活性研究

李浩华 陈玉婵 王磊 章卫民   

  1. 广东省微生物研究所 广东省菌种保藏与应用重点实验室 广东省微生物应用新技术公共实验室 广东省华南应用微生物重点实验室—省部共建国家重点实验室培育基地,广州 510070
  • 收稿日期:2012-06-18 修回日期:2013-01-31 出版日期:2013-01-30 发布日期:2013-01-30
  • 作者简介:李浩华,女,助理研究员,研究方向:微生物资源及其活性物质;E-mail: hhli100@ 126. com
  • 基金资助:
    广东省科技计划项目(2011B031200003, 2010B030600010),中国科学院知识创新工程重要方向项目(KSCX2-EW-G-12B)

Study on Antimicrobial and Antitumor Activities of Marine-derived Fungus Penicillium herquei FS83

Li Haohua, Chen Yuchan ,Wang Lei ,Zhang Weimin   

  1. Guangdong Provincial Open Laboratory of Applied Microbiology,Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application,State Key Laboratory of Applied Microbiology(Ministry-Guangdong Province Jointly Breeding Base),South China,Guangdong Institute of Microbiology,Guangzhou 510070
  • Received:2012-06-18 Revised:2013-01-31 Published:2013-01-30 Online:2013-01-30

摘要: 采用滤纸片法测定海洋真菌梅花状青霉(Penicillium herquei)FS83 的发酵提取物对金黄色葡萄球菌(Staphylococcusaureus)、枯草芽孢杆菌(Bacillus subtilis)、铜绿假单胞菌(Pseudomonas aeruginosa)和大肠杆菌(Escherichia coli)的抑菌活性,采用生长速率法测定提取物对绿色木霉(Trichoderma viride)、黑曲霉(Aspergillus niger)、黄曲霉(Aspergillus flavus)、链格孢(Alternariaalternata)和胶孢炭疽菌(Colletotrichum gloeosporioides)的抗真菌活性,并采用连续稀释法测定提取物对所有细菌和真菌的最低抑制浓度(MIC 值)。此外,还通过MTT 法测试提取物对人肺癌细胞(NCI-H460)、人乳腺癌细胞(MCF-7)和人神经胶质瘤细胞(SF-268)的细胞毒活性。结果表明,菌丝体提取物对金黄色葡萄球菌和枯草芽孢杆菌有明显的抑制活性,抑菌圈分别为18.1 mm、17.3 mm,最低抑制浓度均为1.56 mg/mL,对所有供试真菌也有较好的抑制作用,抑菌率均达50% 以上,最低抑制浓度为0.78 -3.12mg/mL ;发酵液提取物对枯草芽孢杆菌有明显的抑制作用,抑菌圈达16.4 mm,最低抑制浓度均为1.56 mg/mL,对所有供试真菌也有较好的抑制作用,最低抑制浓度为1.56 -6.25 mg/mL。菌丝体提取物对3 种肿瘤细胞株有较强的细胞毒活性,IC50 值为55.9-63.5μg/mL,发酵液提取物对肿瘤细胞株MCF-7 有较强的细胞毒活性,在200 μg/mL 浓度下的抑制率为84.3%。

关键词: 海洋真菌 , 梅花状青霉 , 提取物 , 抑菌活性 , 细菌 , 真菌 , 细胞毒活性

Abstract: The mycelial and broth extracts of a marine-derived strain of the fungus Penicillium herquei FS83 were tested for theirantibacterial activities against Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa and Escherichia coli by filter paper method, andinvestigated for their antifungal activities against Trichoderma viride, Aspergillus niger, Aspergillus flavus, Alternaria alternate and Colletotrichumgloeosporioides by growth rate method. Minimum inhibitory concentrations(MICs)of the culture extracts were determined by serial dilutionmethod. Furthermore, the extracts were evaluated for their cytotoxic activities against NCI-H460, MCF-7, and SF-268 tumor cell lines by theMTT method. The results showed that the mycelial extract displayed significant inhibitory effect on S. aureus and B. subtilis with inhibition zonediameters of 18.1 and 17.3 mm respectively, and the same MIC of 1.56 mg/mL, and also exhibited satisfactorg antifungal activities against allthe test fungi with inhibitory rates of over 50% and MICs in the range of 0.78-3.12 mg/mL. The broth extract showed a remarkable antibacterialeffect on B. subtilis with an inhibition zone diameter of 16.4 mm and an MIC of 1.56 mg/mL, and also displayed antifungal activities on all thetest fungi with MICs in the range of 1.56-6.25 mg/mL. The mycelial extract had a strong cytotoxic activity against the three tumor cell lines withIC50 values between 55.9-63.5 μg/mL, and the broth extract showed a strong cytotoxic activity against MCF-7 cell line with an inhibition rate of84.3% at a concentration of 200 μg/mL.

Key words: Marine fungus , Penicillium herquei , Extract , Antimicrobial activity , Bacteria , Fungi , Cytotoxic activity