| 微粒子病家蚕消化道内肠球菌的分布 |
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| 引用本文： | 鲁兴萌,黄少康,汪方炜,孙振国,张凡,陈盛禄.微粒子病家蚕消化道内肠球菌的分布[J].蚕业科学,2003,29(2):151-156. |
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| 作者姓名： | 鲁兴萌 黄少康 汪方炜 孙振国 张凡 陈盛禄 |
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| 作者单位： | 浙江大学动物科学学院特种经济动物科学系,杭州,310029 |
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| 基金项目： | 国家自然科学基金(30070578)，浙江省自然科学基金(300254) |
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| 摘 要： | 从健康家要、感染微粒子病家蚕,以及感染细菌性肠道病家蚕的消化道分离了200株肠球菌,并进行了数值分类学鉴定,以探讨家蚕消化道中肠球菌的生态学分布和家蚕微孢子与肠球菌的相互关系。研究结果表明:与健康蚕相比,4龄或5龄起蚕添食微孢子的微粒子病家蚕消化道内,肠球菌的数量分别增加5.5×10~5倍和0.74×10~2倍;菌种数从6个分别下降为3个和4个;生化表型数从27个分别下降为13个和14个;在菌种分布上,Ent.avium的分布频率从健康蚕的56％分别下降至20%和38%,而Ent.faecium的分布频率从健康蚕的2％分别上升至40％和16%;分离菌株共有59个生化表型。
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| 关 键 词： | 家蚕 微粒子病 肠球菌 生化表型 分布 |
| 文章编号： | 0257-4799(2003)02-0151-06 |
Distribution of the Enterococci Isolated From Intestine of the Pebrine Infected Silkworm |
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| LU Xingmeng HUANG Shaokang WANG Fangwei SUN Zhenguo ZHANG Fan CHEN Shenglu.Distribution of the Enterococci Isolated From Intestine of the Pebrine Infected Silkworm[J].Acta Sericologica Sinica,2003,29(2):151-156. |
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| Authors: | LU Xingmeng HUANG Shaokang WANG Fangwei SUN Zhenguo ZHANG Fan CHEN Shenglu |
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| Abstract: | Two hundred of enterococci strains were isolated from the intestine of healthy, pebrine and bacterial flacherie diseased silkworms and classified by using API STREP(V.50) system based on numerical taxonomy so as to inquire into the ecological distribution of enterococci in the intestine of silkworm and relationship between Nosema bombycis and enterococci. The results showed that, in comparison with that of the healthy silkworms, the number of enterococci in silkworms infected with Nosema bombycis after third or forth moulting increased by 5.5 x 105 and 0.744 x 102 times respectively.The number of the species decreased from 6 to 3 and 4.The number of biochemical polymorphism types decreased from 27 to 13 and 14.The distribution frequency of Enterococcus avium decreased from 56% to 20% and 38% , the distribution frequency of Enterococcus faecium increased from 2% to 40% and 16% respectively. There are 59 biochemical polymorphism types within the 200 enterococci strains. |
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| Keywords: | Bombyx mori Pebrine Enterococci Biochemical polymorphism type Distribution |
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