病原菌

The proportion of Gram-negative bacilli,Gram-positive cocci and eumycete was 68.0%,23.4% and 8.7% respectively in 184 isolated strains.

铜绿假单胞菌（18.5%）、嗜麦芽窄食单胞菌（14.1%）、洋葱伯克霍尔德菌（10.9%）、金黄色葡萄球菌（10.3%）和鲍曼不动杆菌（8.7%）为VAP最常见的病原菌。

Methods:The tube broth methods were used to determin minimal inhibition concentrationof 13 common bacteria strains.Results:Extracts of Evodia rutaecarpaJuss.

采用试管稀释法测定吴茱萸提取物对13种临床常见病原菌的最低抑菌浓度，判定抑菌效果。

Microscopic examination showed the conidiophores were fasciculate and brown, and that the basal cell was enlarged and hemispheric. Well-developed conidia were long-obclavate, obtuse at both ends, with five to eight transverse septa, which indicated that the pathogen was Bipolaris setaria.

形态观察结果表明，该病原菌分生孢子梗丛生，褐色，基细胞膨大呈半球形，成熟的分生孢子长椭圆形，两端钝圆，具5～8个隔膜，表明其为狗尾草离孺孢。

Study of kinetic antibacterial activities of QJ2 against pathogen W-1 was tested by viable bacteria counts and absorbency at 600nm: 106～ 107 cfu/mL cells of W-1 began to decrease in 15 min after mixing with CFS(cell free-supernatant) of QJ2; the bacterial counts decreased to a minimum at 4h, and the numbers of bacteria began to increase after 6h. The cells of QJ2 did not show any sensitivity to its inhibitory substances in CFS. The size of active molecule in the CFS of QJ2 was smaller than 8000 Da by measuring the inhibitory activities of the fluid inside and outside the dialysis cellulose tubing. QJ2 was identified as Flavobacterium ordaratum by traditional morphological and biochemical method and API-20 identification system.

并对拮抗菌QJ2的拮抗作用进行了研究，结果为：QJ2有广泛的弧菌抗菌谱，对37株弧菌的抗菌阳性率达到89.2%(33/37)；用活菌平板计数法和O.D.600nm研究了QJ2培养物的去细胞上清液与病原菌W-1的作用动力学，15min时W-1的细菌数便开始减少，4h时细菌数最少，6h后开始增加，而对照组的细菌数呈逐渐上升趋势；QJ2对自身的拮抗物质不敏感；QJ2抗性物质的分子量不大于8000Da；经常规生理生化方法和API-20细菌快速鉴定系统鉴定，QJ2为气味黄杆菌。

Methods］The application of AFLP in severalpathogens(such as Legionella pneumophila, Flavobacterium, Aeromonas, Clostridium,Bacillus, Acinetobacter, Pseudomonas, Vibrio, Helicobacter pylori and Group AStreptococcal)was reviewed and especially compared with other molecular epidemiologicalmethods.［Results］AFLP shares many characteristics with other genomic fingerprintingmethods.

方法］对近年来AFLP技术在几种病原菌（嗜肺军团菌、黄杆菌属、气单胞菌属、梭状杆菌属、芽胞杆菌属、不动杆菌属、假单胞菌属、弧菌属、幽门螺杆菌和A组链球菌）的应用进行综述，并与其它分子流行病学方法进行比较。

The results showed that T04-004 strain could significantly inhibit growth of F. oxysporum f.sp.benineasae , and the fungistatic rate was over 90%.

并与节瓜枯萎病原菌进行对峙培养，筛选出拮抗节瓜枯萎病菌镰刀菌的优良木霉菌T04-004菌株，该菌株对节瓜枯萎病菌的抑制率达90%以上。

Biological Characteristics of Fusicoccum sp.

病原菌生物学特性

This is because,"yogurt" in the lactic acid bacteria are able to suppress and eliminate many pathogens, but at the same time it destroys the normal flora of the human good growing conditions, but will also affect the normal digestive function, especially in infants and young children suffering from gastroenteritis early births, if they drink too much,"yogurt", may lead to vomiting and gangrenous enteritis

这是因为，&酸奶&中的乳酸菌虽能抑制和消灭很多病原菌，但同时亦破坏了对人体有益的正常菌群的生长条件，还会影响正常的消化功能，尤其是患胃肠炎的婴幼儿及早产儿，如果给他们喝过多的&酸奶&，可能会引起呕吐和坏疽性肠炎。

Objective To study the germicidal effect of biogas fermentation on pathogens.

目的 探讨沼气发酵对病原菌的杀灭效果。

The results of biological test showed that some of these compounds had good fungicidal activity. The inhibition rate of most compounds to Botrytis cinerea Pers and Gibberella zeae coud reach 50% at the concentration of 50 mg/L. The inhibition rate of two compounds to Botrytis cinereapers were 85%.

同时对6种病原菌进行了生物活性测试，结果表明：在50 mg/L质量浓度下，大部分化合物对黄瓜灰霉病菌和小麦赤霉病菌抑制效果较好，抑制率达50%以上，且优于对照商品醚菌酯；特别是Ⅱh、Ⅱi化合物对黄瓜灰霉病菌抑制率达85%。

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。