鲸鱼骨来源真菌Penicillium sp. S2014503化学成分及其生物活性研究
张海波(1980—), 男, 研究员, 硕士生导师, 研究方向为海洋微生物天然产物研究。email: |
Copy editor: 殷波
收稿日期: 2022-04-11
修回日期: 2022-05-10
网络出版日期: 2022-05-16
基金资助
南方海洋科学与工程广东省实验室(广州)重大专项团队项目(GML2019ZD0406)
国家自然科学基金项目(81872778)
国家自然科学基金项目(41911530078)
国家重点研发计划项目(2018YFC1406705)
国家重点研发计划项目(2018YFC1406704)
Bioactive natural compounds from a whale bone-derived fungus Penicillium sp. S2014503
Copy editor: YIN Bo
Received date: 2022-04-11
Revised date: 2022-05-10
Online published: 2022-05-16
Supported by
Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)(GML2019ZD0406)
National Natural Science Foundation of China(81872778)
National Natural Science Foundation of China(41911530078)
National Key R&D Program of China(2018YFC1406705)
National Key R&D Program of China(2018YFC1406704)
从一块腐烂的鲸鱼骨头分离鉴定了一株真菌Penicillium sp. S2014503。利用大米固体发酵培养技术从该菌产物中获得10个化合物, 通过核磁共振波谱数据比对分析结合质谱数据分析, 手性化合物测定旋光值或者进行X-射线单晶衍射分析后将这10个化合物分别鉴定为emodin (1)、citreorosein (2)、tetrahydro altersolanol B (3)、conioxanthone A (4)、chrysogine (5)、pyramidamycin B (6)、germicidin O (7)、2-(6-hydroxy-5,7-dimethylbenzefuranone-4-yl) acetaldehyde (8)、astrophenone (9)和chenopodolans A (10)。经生物活性测试发现, 化合物1和2对藤黄微球菌具有弱的抑制活性, 化合物1、2和4对卤虫幼虫具有显著的致死毒性。此外, 化合物1是中药大黄和虎杖的主要致泻成分。文章首次报道了来源于海洋动物样品鲸鱼骨的真菌Penicillium sp.能够生产大黄素类等活性天然产物。
张海波 , IMRAN Khan , KUMAR Saurav , 张丽萍 , 方壮杰 , 张鑫雅 , 彭方 , 张长生 . 鲸鱼骨来源真菌Penicillium sp. S2014503化学成分及其生物活性研究[J]. 热带海洋学报, 2023 , 42(2) : 132 -140 . DOI: 10.11978/2022074
Penicillium sp. S2014503 was isolated from a rotten whale bone sample. Constituent analysis and bioactivity evaluation of S2014503 were carried out to find more bioactive compounds from this fungus. Chemical structures of the purified compounds produced by S2014503 were determined by comprehensive analysis of NMR (nuclear magnetic resonance), MS (Mass spectrum) data of each compound. Stereochemistry of chiral compounds were elucidated by comparison of specific rotation value with the reported ones or determined by X-ray diffraction analysis. Ten compounds emodin (1), citreorosein (2), tetrahydro altersolanol B (3), conioxanthone A (4), chrysogine (5), pyramidamycin B (6), germicidin O (7), 2-(6-hydroxy-5,7-dimethylbenzefuranone-4-yl) acetaldehyde (8), astrophenone (9), and chenopodolans A (10) were found in the fermentation product of S2014503 which was cultured on a solid state rice medium. Bioactivities of all the isolated compounds were evaluated for the antibacterial activities and cytotoxicity against brine-shrimp larvae. Compounds 1 and 2 showed weak activity against Gram positive bacteria Micrococcus luteus. Compounds 1, 2 and 4 were significantly cytotoxic against brine-shrimp larvae (Artemia salina) after 6 hours of incubation at room temperature. Interestingly, compound 1 was a well-known laxative ingredient of Traditional Chinese Medicine Rheum officinale and Polygonam cuspidatum. This work is the first report on the emodin analogs from a whale bone derived fungus Penicillium sp.
Key words: Whale bone; Penicillium sp.; emodin
表1 化合物3的X-射线晶体数据Tab. 1 Single crystal X-ray diffraction analysis data of compound 3 |
Identification code | Tetrahydroaltersolanol B | Identification code | Tetrahydroaltersolanol B |
---|---|---|---|
Empirical formula | C16H20O6 | μ/mm-1 | 0.971 |
Formula weight | 308.3g·mol-1 | F(000) | 756.0 |
Temperature/K | 100.00 (10) | Crystal size/mm3 | 0.02 × 0.01 × 0.01 |
Crystal system | monoclinic | Radiation/Å | Cu Kα (λ=1.54184) |
Space group | I2 | 2Θ range for data collection/(°) | 4.864 to 148.83 |
a/Å | 7.88690 (10) | Index ranges | -9 ≤ h ≤ 9, -7 ≤ k ≤ 7, -45 ≤ l ≤ 45 |
b/Å | 5.80710 (10) | Reflections collected | 16092 |
c/Å | 36.3377 (4) | Independent reflections | 3323 [Rint=0.0283, Rsigma=0.0195] |
α/(°) | 90 | Data/restraints/parameters | 3323/1/241 |
β/(°) | 90.0340 (10) | Goodness-of-fit on F2 | 1.047 |
γ/(°) | 90 | Final R indexes [I≥2σ (I)] | R1 = 0.0247, wR2 = 0.0640 |
Volume/Å3 | 1664.27 (4) | Final R indexes [all data] | R1 = 0.0254, wR2 = 0.0644 |
Z | 4 | Largest diff. peak/hole / e Å-3 | 0.15/-0.14 |
ρcalc/(g·cm-3) | 1.410 | Flack parameter | -0.06 (5) |
表2 化合物1-10卤虫致死毒性百分率测试结果Tab. 2 Lethal toxicity assay results of compounds 1-10 against Artemia salina |
样品编号 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 阳性对照 |
---|---|---|---|---|---|---|---|---|---|---|---|
致死百分率/% | 97 | 97 | 72 | 90 | 75 | 81 | 90 | 65 | 69 | 61 | 100 |
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