海草内生真菌Fusarium sp.F-1化学成分研究

从海草互花米草(Spartina alterniflora)中分离到真菌Fusarium sp．，从该菌株的培养物中首次分离到5个化合物，经TLC对照，MS，NMR等光谱技术鉴定，确定其结构分别为麦角甾醇(Ⅰ)、过氧化麦角甾醇(Ⅱ)、肉桂酸(Ⅲ)、对羟基苯丙酸(Ⅳ)和白僵茵素(Ⅴ)。  

车前草内生真菌w-90次级代谢产物的研究

车前草内生真菌w-90是按常规从车前草（Plantago major L．）茎部分离到的。归于拟青霉菌属（Paecilomyces sp．）。其发酵液和粗提物都有一定的抗菌活性。采用现代的分离和波谱技术。对其次级代谢产物进行了深入的研究．发现它能产生车前草的主要有效成分乌苏酸（ursolic acid）。这个事实表明：药用宿主植物的生物生理活性物质也可以由从该植物体分离得的某些内生真菌采生产。  

红树植物角果木内生真菌J62生物活性成分研究

目的 研究红树植物角果木内生真菌J62产生的活性次生代谢产物。方法 采用多种柱色谱技术进行分离纯化,根据理化常数和波谱数据鉴定化合物的结构,采用滤纸片琼脂扩散法测定化合物抗金黄色葡萄球菌(Staphylococcus aureus)和白色念珠菌(Candida albicans)活性,利用MTT法测定各化合物的体外细胞毒活性。 结果 从角果木内生真菌J62发酵液中分离鉴定了10个化合物,分别为：反式桂皮酸 (1),3,4-二甲氧基苯甲醇 (2), 2-[(3,4-dimethoxyphenyl)methyl]-4,5-dimethoxy-benzenemethanol (3), l尿嘧啶核苷(4), similin B (5),coibanol C (6), hymatoxin C (7), 5,8-epidioxy-5a,8a-ergosta-6,22E-dien-3b-ol (8),豆甾-7,22-二烯-3b,5a,6a-三醇 (9)和crispin A (10)。结论 生物活性测试结果表明,化合物1, 2和7具有抗金黄色葡萄球菌活性,化合物1和2具有抗白色念珠菌的活性；化合物2和5对肿瘤细胞株K-562显示有生长抑制活性。  

白木香内生真菌R7抗菌活性代谢产物

目的 研究白木香内生真菌Phaeoacremonium rubrigenum发酵液的化学成分.方法 采用多种柱色谱技术对发酵液中的化学成分进行分离鉴定,根据波谱数据和理化性质鉴定化合物的结构.并用杯碟法和滤纸片琼脂扩散法测定抗耐甲氧西林金黄色葡萄球菌(methicillin-resistant Staphylococcus aureus,MRSA)活性.结果 分离鉴定了9个化合物,分别为对羟基苯甲醛(1)、对羟基苯乙酸(2)、对羟基苯乙醇(3)、3,4-二羟基苯甲酸(4)、对甲基苯酚(5)、氮-(6-羟己基)-乙酰胺(6)、5-羟甲基糠醛(7)、(3β,5α,6β,22E)-麦角甾-7,22-二烯-3,5,6-三醇(8)和胸腺嘧啶脱氧核苷(9).结论 首次发现化合物2～7具有抗耐甲氧西林金黄色葡萄球菌活性.  

角果木内生真菌的代谢产物研究

目的研究角果木内生真菌Penicillium.sp FJ-1发酵液的化学成分。方法用多种柱色谱技术对该菌发酵液化学成分进行分离纯化,根据波谱数据和理化性质鉴定化合物的结构。结果分离得到5个化合物,经波谱分析鉴定其结构分别为24R-ergosta-7,22-diene-3,5,6-triol(1)、互隔交链孢霉素(2)、5-羟基互隔交链孢霉素(3)、5’-epialtenuene(4)、篮毒菌素黄酮(5)。结论以上5个化合物均为首次从该菌中分离得到,并首次报道了化合物3的核磁数据。  

红树植物内生真菌来源的蒽醌类代谢产物的研究进展

红树植物内生真菌来源的蒽醌类代谢产物具有抗肿瘤、抗菌、抗病毒等活性,本文综述其主要生物合成途径、代谢产物结构类型以及生物活性等方面的研究进展。  

一株牛奶子内生真菌Colletotrichum sp.代谢产物的研究

目的研究牛奶子内生真菌Colletotrichumsp.代谢产物。方法采用乙酸乙酯萃取、硅胶层析、高效液相色谱制备分离纯化;通过质谱和核磁共振等谱学数据进行化学结构鉴定。结果从发酵液中分离得到7个化合物,经波谱数据分别鉴定为3-吲哚乙酸乙酯(1)、乙酸-3-吲哚乙酯(2)、吲哚-3-乙酰胺(3)、nectriapyrone(4)、2-(2-羟基丙酰胺)苯甲酰(5)、3-甲色酮(6)和苯乙酸(7)。结论化合物4,5和6为首次从该属真菌中分离得到。  

Two new metabolites from Daldinia eschscholtzii,an endophytic fungus derived from Pogostemon cablin

The chemical investigation of the mycelia of endophytic fungus Daldinia eschscholtzii A630, which was isolated from the medicinal plant Pogostemon cablin, resulted in the isolation of two new compounds, named eschscholin A (1), 3-ene-2-methyl-2H-1-benzopyran-5-ol (2), and one new natural product 3,5-dihydroxy-2-methyl-4H-chromen-4-one (3), along with seven known compounds. Their structures were fully characterized by means of detailed spectroscopic analysis, and in comparison with published data for known compounds. All of the isolated compounds (1–10) were evaluated for their antibacterial activities.  

Xylarodons A and B,new hexaketides from the endophytic fungus Xylaria sp. SC1440

Two new hexaketides, xylarodons B (1) and C (2), were isolated from solid cultures of the endophytic fungus Xylaria sp. SC1440. The structures of these compounds were elucidated on the basis of detailed 1D, 2D NMR, and HRESIMS analysis. Their absolute configurations were established by experimental and TDDFT calculated ECD spectra. The isolated compounds were evaluated for cytotoxic and tyrosinase inhibitory activity.  

Two new 12-membered macrolides from the endophytic fungal strain Cladosprium colocasiae A801 of Callistemon viminalis

Two new polyketide metabolites, the 12-membered macrolides 4-hydroxy-12-methyloxacyclododecane-2,5,6-trione (1) and 12-methyloxacyclododecane-2,5,6-trione (2), were isolated from the endophytic fungal strain Cladosprium colocasiae A801 of the plant Callistemon viminalis, together with five known derivatives. Their structures were fully characterized by means of detailed spectroscopic analysis for new structures, and in comparison with published data for known compounds. The antibacterial, cytotoxic, and α-glucosidase inhibitory activities of the new compounds 1 and 2 were evaluated.