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Some strains of the nematode-bearing bacteria were bioassayed for their parasitism. All these bacteria can totally not grow or grows badly on the media incorporating the extracts of pine trees, indicating some substances existing in the trees will harmful to the bacterial strains, which is further convinced by preliminary inoculation showing that single bacterial species will not infect Pinus thugbergii. Hence, the growth and reproduction of the nematode-carrying bacteria, which could produce toxic substances causing the death of the tree cells, is closely related to the nematodes, when they first enter to the trees. In the same time, the activity of bacteria improved the circumstances for which nematodes are living, which in turn will beneficial to the growth of nematodes. Thus, there is a complicated interaction among nematodes, bacteria, and pine trees.

对松材线虫携带的细菌的部分菌株进行了寄生性测定，表明这些细菌在添加松树提取液的细菌培养基中不能生长或基本不能生长，这说明松树体内可能存在某些不利于细菌生长的物质，同时初步的接种试验证实，单独的细菌接种不能感染健康的黑松，因此，线虫携带的致病细菌在最初进入树体时，其生长和繁殖与线虫密切相关，结合细菌产生的毒性物质可造成黑松细胞死亡的情况，说明细菌的生长与线虫有关，同时，细菌的活动改变了线虫在松树内的生长环境，使环境变得有利于线虫的生活，因此，线虫、细菌和松树三者存在着复杂的生物关系。

Results MIC90 values of secnidazole, Tinidazole and meronidazole to 120 strains of Gram-negative anaerobic bacteria were 1 - 4, 1 - 2 and 4- 8 μg/ml, and were 4 - 8, 4 - 16 and 16 - 32μg/ml to 80 strains of Gram-positive anaerobic bacteria, respectively.

结果塞克硝唑、替硝唑和甲硝唑对120株革兰阴性厌氧菌的MIC90分别为1～4μg/ml、1～2μg/ml和4～8μg/ml，对80株革兰阳性厌氧菌的MIC90分别为4～8μg/ml、4～16μg/ml和16～32μg/ml。

Finally, 20 strains aerobic denitrifying bacteria, which have higher denitrification efficiency, are isolated from the activated sludge, and the further research for the 3 strains out of the 20 are carried cot.

从完成驯化的污泥中筛选出20株具有较高脱氮效率的好氧反硝化细菌，并对其中的3株FW3、FW6和FR4进行了进一步的研究。

We selected 14 PHB-producing strains as positive lipophilic strains Fig.

我们选择了14株产生聚丁酸酯的菌株作为阳性亲酯性株。

A VHH probe, which is specific to V. harveyi vhhA haemolysin gene, was used to screen EcoR Ⅰ digests of total DNA from 57 vibrio strains, including 26 vibrio type strains, 20 V.

哈维氏弧菌的VHH溶血素基因与副溶血弧菌(V.parahaemolyticus)的TLH热不稳定性溶血素基因具有高度相似性，其氨基酸序列的相似性达到85.6﹪。

In metabolizing argine, there had no obvious difference among three strains and the control 3 1 DH. Thus, three selected strains had better characters of degrading argininc that they couldn"t over-degrade arginine to produce large numbers" precursors of carcinogenic ethyl carbamate as citrulline, etc.

分析表明，精氨酸分解代谢方面，三个菌株与对照31DH没有明显差异，由此说明，三个优选菌株精氨酸代谢特性良好，不会过多降解精氨酸、代谢产生瓜氨酸等前体物质，从而不会导致致癌物质——氨基甲酸乙酯的大量合成。

Degradation of the Petroleum Products by Two Yeast Strains in AquaticEnvironmentIn this section, the abilities of two yeast strains, Candida lipolytica and Candia nigosa for removing the mixture of diesel and crude oil were studied in a batch mode under the laboratory conditions.

Bi口凌岁口由tl'onofthePetroleump口llutantsincontaminaledtoes：5011染物的降解具有协同作用，因此两菌株，特别是混合菌株可考虑用于石油污染水体和土壤的生物整治。

At transcription level, the trap of ATCC 12228 and other biofilm positive clinic strains SE1457 and SE671 were very low compared to ATCC 35984, but the RNA Ⅲ was relative excessive in all strains, except in SE1457 △agr.

结果 比较分析形成生物膜的表皮葡萄球菌ATCC 35984株与不形成生物膜的ATCC 12228株生长中期的蛋白质组，发现ATCC 35984株的TRAP蛋白量明显高于ATCC 12228株。

Results Among 11 strains isolated from epidemic asthma-like pneumonia, 4 (36%) had extra six nucleotides inserted into the 3′end non-coding region of the F gene, whereas none of the F genes from 5 strains isolated from regular pneumonia had that insertion.

为了从分子基础来探讨RSV的致病性，本研究室对从不同地区、不同流行特征分离到的RSV进行了主要抗原结构蛋白的基因序列比较分析。

3Two mixed strains (M-15、M-16) and two single strains (S-2、S-6), which were isolated from the samples of pollution point, showed a strong ability to remove TC and CC.

3从实际污染点样品中筛选出的两种混合菌M-15、M-16以及两种单菌S-2、S-6对两种氯丹异构体均有很好的降解能力。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。