Two new meroterpenoid compounds(1 and 2) together with five known meroterpenoid derivatives(3–7) were isolated from solid culture of mushroom Panus lecomtei. The structures of new compounds were confirmed by the anal...Two new meroterpenoid compounds(1 and 2) together with five known meroterpenoid derivatives(3–7) were isolated from solid culture of mushroom Panus lecomtei. The structures of new compounds were confirmed by the analysis of NMR and HRESI-MS spectroscopic data. The biosynthetic pathway of 1–7 was postulated. All isolated compounds were evaluated for antibacterial activities against Staphylococcus aureus, Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosa and Bacillus Calmette–Guérin.Compound 3 exhibited weak antibacterial activity against Bacillus Calmette–Guérin with the inhibition rate of 83.6% at 100 μmol·L-1.Other compounds showed no antibacterial activities against all tested pathogens at 100 μmol·L-1.展开更多
植物资源调查是探讨系统发育、植物区系进化历史和亲缘关系的基础,是我国植物研究工作的重要任务之一,虽然我国在植物资源调查方面有了丰富的积累,并以《中国植物志》和各地方植物志为代表,但部分偏远地区的植物资源状况仍然缺乏数据。...植物资源调查是探讨系统发育、植物区系进化历史和亲缘关系的基础,是我国植物研究工作的重要任务之一,虽然我国在植物资源调查方面有了丰富的积累,并以《中国植物志》和各地方植物志为代表,但部分偏远地区的植物资源状况仍然缺乏数据。该研究通过形态特征比较分析,发现云南省被子植物新记录3种,即柳叶黄肉楠(Actinodaphne lecomtei C. K. Allen)原分布于四川、贵州、广东(乳源)、广西,云南省丘北县为其新记录点;八角樟(Cinnamomum ilicioides A. Chevalier)原分布于中国的广东、海南、广西和越南北部,云南省西双版纳傣族自治州勐腊县为其新记录点;贵州山核桃(Carya kweichowensis Kuang A. M. Lu ex Chang et Lu)原分布于贵州安龙、望谟、册亨、兴义等,云南省丘北县为其新记录点。柳叶黄肉楠和八角樟在云南的新分布点是对我国樟科薄弱地带的补充,为分析滇产原始种类对相关属的起源发生和中国樟科分类学研究提供了新材料;贵州山核桃在物种层面上对确定贵州山核桃与喙核桃(Annamocarya sinensis)两者之间的联系提供了新的案例,并为云南发展山核桃(Carya cathayensis)生产提供了种质资源。展开更多
基金National Key R&D Program of China (Nos. 2018YFD0400203,2017YFE0108200 and2017YFE0108100)the National Natural Science Foundation of China (Nos. 81673334 and 31772374)。
文摘Two new meroterpenoid compounds(1 and 2) together with five known meroterpenoid derivatives(3–7) were isolated from solid culture of mushroom Panus lecomtei. The structures of new compounds were confirmed by the analysis of NMR and HRESI-MS spectroscopic data. The biosynthetic pathway of 1–7 was postulated. All isolated compounds were evaluated for antibacterial activities against Staphylococcus aureus, Escherichia coli, Bacillus subtilis, Pseudomonas aeruginosa and Bacillus Calmette–Guérin.Compound 3 exhibited weak antibacterial activity against Bacillus Calmette–Guérin with the inhibition rate of 83.6% at 100 μmol·L-1.Other compounds showed no antibacterial activities against all tested pathogens at 100 μmol·L-1.
文摘植物资源调查是探讨系统发育、植物区系进化历史和亲缘关系的基础,是我国植物研究工作的重要任务之一,虽然我国在植物资源调查方面有了丰富的积累,并以《中国植物志》和各地方植物志为代表,但部分偏远地区的植物资源状况仍然缺乏数据。该研究通过形态特征比较分析,发现云南省被子植物新记录3种,即柳叶黄肉楠(Actinodaphne lecomtei C. K. Allen)原分布于四川、贵州、广东(乳源)、广西,云南省丘北县为其新记录点;八角樟(Cinnamomum ilicioides A. Chevalier)原分布于中国的广东、海南、广西和越南北部,云南省西双版纳傣族自治州勐腊县为其新记录点;贵州山核桃(Carya kweichowensis Kuang A. M. Lu ex Chang et Lu)原分布于贵州安龙、望谟、册亨、兴义等,云南省丘北县为其新记录点。柳叶黄肉楠和八角樟在云南的新分布点是对我国樟科薄弱地带的补充,为分析滇产原始种类对相关属的起源发生和中国樟科分类学研究提供了新材料;贵州山核桃在物种层面上对确定贵州山核桃与喙核桃(Annamocarya sinensis)两者之间的联系提供了新的案例,并为云南发展山核桃(Carya cathayensis)生产提供了种质资源。
