革兰氏染色阴性

These two isolates presented typical characteristics of Streptococcus iniae with gram-positive cocci in chains, catalase negative and beta-hemolytic, growth under 10℃ and non-growth up 45 ℃, hydrolyzation of esculin and arginine, Voges-Proskauer, urease, and hippurate tests negative, fermentation of glucose, salicin, sucrose and starch, non-fermentation of arabinose, inulin, lactose, melibiose, raffinose and sorbitol.

实验结果表明，两菌株具有典型的海豚链球菌特性：在显微镜下为球形细胞，呈长短不一的链状排列，革兰氏染色阳性：在血琼脂平板上显示β溶血；1O℃生长，45℃不生长；接触酶阴性；水解七叶苷、精氨酸，VP试验、脲酶和马脲酸试验阴性；发酵葡萄糖、水杨苷、蔗糖和淀粉，不发酵阿拉伯糖、菊糖、乳糖、蜜二糖、棉子糖和山梨醇等。

Nov.. The main symptoms of the bacterial disease on Vigna angularis were canker of stalk.The strains were straight or curved rods; polar flagellum one; Gram-negative; could infect Vigna angularis、 Glycine max、 Vigna radata、 Vigna umbellate、 Phaseolus vulgaris、 Pisum sativum、 Pisum sativum var.humlie; oxidase negative; nitrate reduction negative; 5% glucose agar mucilage positive; esculin hydrolysis positive; starch negative; milk hydrolysis positive; H_2S positive; acid from L-arabinose, D-mannose, D-galactose, cellobiose, trehalose and fructose; 5%NaCl positive; G+Cmol%-69%.

红小豆溃疡病主要症状为茎部溃疡；各菌株菌体均杆状；极生鞭毛1根；革兰氏染色阴性；人工接种能侵染多种豆科植物；好氧；氧化酶阴性；硝酸盐反应阴性；5％葡萄糖营养琼脂黏液生长阳性；七叶灵水解阳性；淀粉水解阴性；牛奶分解产碱；产生硫化氢；能从阿拉伯糖等产酸；最大耐盐量为5％；G+Cmol％为69％等特征，根据《手册》9th ed相关部分，确定该病由野油菜黄单胞菌苜蓿致病变种Xanthomonas campestris pv.alfalfae(Riker，Jones et Davis 1935)Dye 19781引起。

Gosling died of liver and spleen smears, stained with basic fuchsin after 100X16 in ordinary times, under an optical microscope examination, found a similar kind of bacteria Brevibacterium, was paired with an independent or state, for Gram-negative.

病死雏鹅的肝、脾涂片，用碱性复红染色后，在普通光学显微镜100X16倍下镜检，发现类似球菌样的短杆菌，呈独立或成对排列态势，为革兰氏阴性。

Gram ' s stain A stain containing the basic dye crystal violet or gentian violet that forms the basis for the division into Gram positive and Gram negative bacteria.

革兰氏染色法：是一种使用结晶紫或龙胆紫作为染料来区分革兰氏阳性菌和革兰氏阴性菌的染色方法。

Firstly,the result of the morphological character shows that all strains are short bacillus and gram-negative bacteria except DL7 strain;40%strains have gemma,and the strains which isolated from the root nodule of Podocarpus macrophyllus Thunb.

首先从形态特征的结果来看，所有菌株的菌体均为短杆状，革兰氏染色仅DL7菌株是阳性，其余菌株是阴性，有40%的菌株具有芽孢，其中从罗汉松根瘤分离的菌株形态与根瘤菌的有更多的相似性。

A strain of sultate-reducing bacteria was isolated from the sullage of Sichuan Sulfate Factory. The cells are vibrioid-shaped or of thin rod shape with the size of

从硫酸厂废水淤泥中分离筛选出了一株SRB，其菌体形态呈弧状或细杆状，成熟细胞大小0.4～0.6×3.0～5.0μm，摇摆式运动，单极生鞭毛，芽孢染色阴性，革兰氏染色阴性。

Morphological and physiological identification showed that NTG-01 was Gram-negative, short rod shape, with flagella around the bacteria, V-P test positive and Methyl red test negative. The bacterium can use glucose as carbon suource and produce gases. No H2S produced on TTS medium. Lysine decarboxylase and orthinine decarboxylase, catalase and gelatine test are positive. Arginine decarboxylase, dehydrolase, oxidase and urase test are negative. Sequencing and alignment of 16S rDNA showed that it shared a 99% homologous sequence with Enterobacter aerogenes.

结果显示菌株NTG-01为细菌，革兰氏染色阴性，短杆状，鞭毛周生，V-P试验阳性，甲基红实验阴性，利用葡萄糖产酸产气，不能在TIS培养基上产生H_2S，赖氨酸和鸟氨酸脱羧酶试验呈阳性，精氨酸脱羧酶和双水解酶试验呈阴性，氧化酶和脲酶试验阴性，接触酶和明胶液化试验阳性，但后者反应迟缓，一周后才观测到结果。

Both Mycoplana and Rothia can grow in the medium oil which is taken as only carbon source. Mycoplana is gram negative, fragmentates during early age. Rothia is gram positive and has obvious branching myceleum.

结果表明，这两种放线菌都能以变压器介质油为惟一碳源进行生长繁殖，前者为革兰氏染色阴性，培养早期断裂为杆状；后者为革兰氏染色阳性，有明显的分枝菌丝。

Microscopically, a gram stain reveals gram negative diplococci within a neutrophil, typical for Neisseria meningitidis.

显微镜下，中性粒细胞内可见的革兰氏染色阴性的双球菌，为脑膜炎奈瑟球菌。

Of, relating to, or being a bacterium that does not retain the violet stain used in Gram's method .

革兰氏阴性的属于，有关或作为用革兰氏法染色不保留紫色色素的细菌的

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。