排序方式: 共有22条查询结果,搜索用时 15 毫秒
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本文报道采自贵州贵阳花溪和云南思茅的松塔牛肝菌属的两个新种,它们是网盖松塔牛肝菌Strobilomyces areolatus,和黑鳞松塔牛肝菌Strobilomyces atrosquamosus.研究标本保存在中国科学院微生物研究所菌物标本馆(HMAS)。 相似文献
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本文报道采自贵州贵阳花溪和云南思茅的松塔牛肝菌属的两个新种,它们是网盖松塔牛肝菌 Strobilomyces areolatus, 和黑鳞松塔牛肝菌Strobilomyces atrosquamosus. 研究标本保存在中国科学院微生物研究所菌物标本馆(HMAS)。 相似文献
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菌株L342分离自中国四川省的废弃白蚁巢,rDNA序列分析表明L342为蚁巢膝束霉Geniculisynnema termiticola。抗氧化活性评价结果显示其PDB发酵产物的乙酸乙酯提取物具有很强的还原能力和中等强度的DPPH清除能力。采用硅胶柱色谱、ODS柱色谱、Sephadex LH-20柱色谱、HPLC等分离方法,从G. termiticola的PDB发酵粗提物中分离鉴定了6个化合物:3,4-Dihydro-6,8-dihydroxy-3-methylisocoumarin (1), regiolone (2), (3S, 4S)-3,4,6,8-tetradydroxy-3,4-Dihydronaphthalen-1(2H)-one (3), ergosta-4,6,8(14),22-tetraen-3-one (4), cerebroside A (5), and cerebroside C (6)。其中化合物4-6具有中等强度的铁离子还原能力,化合物4还具有一定的HeLa细胞毒活性(IC50=98.3μmol/L)。G. termiticola发酵产物具有产生有生物活性次级代谢产物的潜力,有望开发成为一种新型的功能性食品。 相似文献
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采自云南宾川县和贵州贵阳红菇属的一新种和一个变种分别命名为宾川红菇(Russula binchuanensis), 和桂樱红菇小果变种 (Russula laurocerasi Mezler var. microcarpa)。研究标本保存在中国科学院微生物研究所菌物标本馆(HMAS)。 相似文献
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The antioxidant potency of components from Xylaria gracillima in submerged culture was investigated, employing various established in vitro systems, such as superoxide (O2?-) and hydroxyl (?OH) radical scavenging, reducing power, and ferrous ion chelating ability. Tocopherol (Ve), butylated hydroxytoluene (BHT) and ethylenediaminetetraacetic acid (EDTA) were used as positive controls. According to the results, components from X. gracillima in submerged culture showed significant effect on ferrous ion chelating ability, O2?- and ?OH radical scavenging ability at the range of concentration tested, and their highest antioxidant activities reached 89.72%, 70.90% and 77.46% respectively. The components also showed positive results of reducing power. These in vitro results suggested the possibility that components from X. gracillima in submerged culture could be effectively employed as an ingredient in healthy or functional food. 相似文献
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中国条孢牛肝菌属的新种和新记录种 总被引:1,自引:0,他引:1
根据孢子具纵向稜纹、条纹纹饰,以及其它微观特征和宏观特征,作者研究鉴定了现有标本,共有8种,其中2个种为新种:梵净条孢牛肝菌Boletellus fanjingensis Wen,福建条孢牛肝菌Boletellus fujianensis Wen。2个种为我国新记录:淡红褐条孢牛肝菌Boletellus badiovinosus Horak,暗红条孢牛肝菌Boletellus obscurecoccineus(Hohn.)Sing.。 相似文献
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