鼠李糖醇

The pathogen grew well on the media using glucose, sucrose, fructose, maltose, rhamnose or soluble starch as carbon sources. Galactose, xylose, mannite or sorbose was not beneficial for the growth of the pathogen, however. The media with only organic or inorganic nitrogen sources were not suitable for the pathogen growth although organic nitrogen sources were better than inorganic nitrogen sources. The pathogen could also infect Allium cepa L., A. fistulosum L. and A. odorum L. under artificial inoculation conditions.

在碳源中，以对葡萄糖、蔗糖、果糖、麦芽糖、鼠李糖和淀粉的利用为佳，而半乳糖、山梨糖、甘露醇、木糖和菊糖不利病菌的生长；有机氮源优于无机氮源，但单独应用有机或无机氮作为营养均不适于此病菌的生长；在人工接种条件下，病菌可侵染葱、洋葱和韭等葱属植物。

Their structures were identified by chemical and spectral analysis. RESULTS Five compounds were isolated and identified as stigmasterol 3-O-β-D-glucopyranoside, 20β-hydroxy-ecdysone,β-L-thymidine, pennogenin 3-O-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside and pennogenin 3-O-α-L-rhamnopyranosyl-(1→4)-α-L-rhamnopyranosyl-(1→4)-α-L-rhamnopyranosyl-(1→4)-[α-L-rhamnopyranosyl-(1→2)-]-β-D-glucopyranoiside.

结果 分离并鉴定了5个化合物，分别是Δ5，22-豆甾醇3-O-β-D-葡萄吡喃糖苷，20β-羟基蜕皮激素，β-L-脱氧胸腺嘧啶苷，偏诺皂苷元3-O-α-L-鼠李吡喃糖基－(1→2)-β-D-葡萄吡喃糖苷和偏诺皂苷元3-O-α-L-鼠李吡喃糖基－(1→4)-α-L-鼠李吡喃糖基－(1→4)-［α-L-鼠李吡喃糖基－(1→2)-］-β-D-葡萄吡喃糖苷。

Result:Eight compounds were elucidated as β amyrin palmitate, taraxastery acetate, luteolin 7 O α L rhamanopyranosyl (1→2)β D glucopyranoside,luteolin 7 O β D glucopyranoside, triacontanic acid,β sitosterol, stigmasterol and stigmast 7 en 3β ol.

结果 ：从全草中分离得到 5个化合物，β香树脂醇棕榈酸酯，蒲公英醇乙酸酯，木樨草素 7 O α L 鼠李糖基(1→ 2 )β D 葡萄糖苷，木樨草素 7 O β D 葡萄糖苷，三十碳酸；1个混合物，β谷甾醇、豆甾醇、豆甾 7 烯 3β醇。

Sixteen compounds were separated from 80% ethanol extract of Plant A, they were:-lariciresinol,-isolariciresinol,-isolariciresinol 9-O-β-D-glucopyranoside, tanegoside B, apiginin, apigenin 7-O-β-D-glucoside, apigenin 7-O-β-neospheroside, quercetin 3-O-β-D-glucopyranoside, 1, 7-dihydroxy-3, 4-dimethoxyxanthone, 3-O- [α-L-rhamnopyranosyl (1-4 ] -β-D-glucopyranoside-(25S)-5β-spirostan-3β-ol , 3β-O-D-glucopyranoside quinovic acid, mangiferin , 3'-p-hydroxybenzoyl-mangiferin, physcion, benzenyl methanol β-D-glucopyranoside and Vanillic acid.

结果： 1。从植物A的80％乙醇提取物中共分离得到16个化合物，分别为：-落叶松脂醇、-异落叶松脂醇、异落叶松脂醇9-O-β-D-吡喃葡萄糖苷、tanegoside B、芹菜素、芹菜素7-O-β-葡萄糖苷、芹菜素7-O-β-新橙皮糖苷、槲皮素3-O-β-D-吡喃葡萄糖苷、1，7-二羟基-3，4-二甲氧基-口山酮、菝葜皂苷元-3-O-[α-L-吡喃鼠李糖基（1-4）]-β-D-吡喃葡萄糖苷、喹诺酸3β-O-D-葡萄糖苷、知母宁、3′-对羟基苯甲酸-知母宁、大黄素甲醚、苯甲醇-β-D-吡喃葡萄糖苷、香草酸。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。