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微杆菌3-28对萘、菲、蒽、芘的降解 被引量:23
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作者 王春明 李大平 王春莲 《应用与环境生物学报》 CAS CSCD 北大核心 2009年第3期361-366,共6页
研究了以多环芳烃为唯一碳源富集培养的微杆菌3-28对不同多环芳烃化合物(Polycyclic aromatic hydrocarbons,PAHs)及混合PAHs的降解能力,以及在无机基础培养基中生长时PAHs浓度与一些主要环境因子如pH值、盐度、温度对细菌降解PAHs的影... 研究了以多环芳烃为唯一碳源富集培养的微杆菌3-28对不同多环芳烃化合物(Polycyclic aromatic hydrocarbons,PAHs)及混合PAHs的降解能力,以及在无机基础培养基中生长时PAHs浓度与一些主要环境因子如pH值、盐度、温度对细菌降解PAHs的影响.结果表明,微杆菌3-28对萘、菲、蒽和芘均有较高的降解能力,112h后萘与菲完全降解,而蒽和芘28d的降解率分别为97.54%、90.2%.初始底物浓度会影响细菌生长速率,底物浓度过高不利于细菌生长.相同培养时间下多底物培养液中的菌群浓度明显高于单底物系统.微杆菌3-28能够在pH6.0~9.0、盐度10~30g/kg,温度40~55℃的环境下生存,并保持较高的降解能力. 展开更多
关键词 microbacterium sp.3-28 PAHS 底物浓度 环境因子 降解率
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Chemical Constituents of One Species of Endophytic Fungus in Taxus chinensis 被引量:3
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作者 张集慧 郭顺星 +1 位作者 杨峻山 肖培根 《Acta Botanica Sinica》 CSCD 2002年第10期1239-1242,共4页
Three compounds were obtained from the mycelia of an endophytic fungus Gliocladium sp. (designated as strain F) of Taxus chinensis (Pilg.) Rehd. growing in Fujian Province, China. Their structures were determined on t... Three compounds were obtained from the mycelia of an endophytic fungus Gliocladium sp. (designated as strain F) of Taxus chinensis (Pilg.) Rehd. growing in Fujian Province, China. Their structures were determined on the basis of spectral analysis. (20S,22S)-4a-homo-22-hydroxy-4-oxaergosta-7,24(28)-dien-3-one was a novel compound. 4,8,12,16-tetramethyl-1,5,9,13-tetraoxacyclohexadecane-2,6,10,14-tetraone was firstly isolated from the genus ofGliocladium and 6,9-epoxyergosta-7,22-dien-3-ol was firstly obtained from the strain F. 展开更多
关键词 Taxus chinensis (20S 22S)-4a-homo-22-hydroxy-4-oxaergosta-7 24 (28)-dien-3-one chemical constituent Gliocladium sp.
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