Most antimicrobial peptides have broad-spectrum antimicrobial activity. They have a killing effect on Gram-positive bacteria, Gram-negative bacteria and fungi at very low concentrations and some of them even in the nmol concentration can completely inhibit bacterial growth.

The flocculation of Gram-positive and Gram-negative bacteria was 17% and 25% in the presence of CMCS, respectively.

在作用机制方面CMCS并不能影响细菌生长，而是导致细菌絮凝，其对革兰氏阳性菌和革兰氏阴性菌的絮凝指数分别为17%和25%。

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1.67 stains of Gram-positive and 58 stains of Gram-positive cocci were isolated from fermented sausage, Chinese sausage and ham with MRS agar and MSA agar.

从发酵香肠、腊肠、金华火腿中，用MRS培养基分离到67株革兰氏阳性菌，用MSA培养基分离到58株革兰氏阳性球菌；

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A3 was a kind of initial fermentation media which was good for Coliform bacteria detection and bad for the growth of grams positive bacteria.

综上结果说明，A3培养基是一种适宜大肠菌群生长，抑制革兰氏阳性菌生长的初发酵基础培养基，能在短期内使发酵管产气的菌群基本就是大肠菌群。

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Results We could attain the mixed genomic DNA from Gram positive bacteria ( Staphylococcus aureus representative) and Gram negative bacteria ( ETEC representative) simultaneity.

结果同时提取得到革兰氏阳性菌（以金葡菌为代表）和革兰氏阴性菌（以产毒性大肠杆菌ETEC为代表）的混合基因组DNA；

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The results of in vitro susceptibility test showed that tosufloxacin possess similar antibacterial activity to sparfloxacin, ofloxacin and ciprofloxacin, and is more active against gram positive cocci than azithromycin.

试验组与对照组各对应指标差异无统计学意义（P0.05）。体外抗菌活性研究结果表明，托氟沙星的抗菌活性与司帕沙星、氧氟沙星、环丙沙星相似，对革兰氏阳性菌的抗菌活性明显优于阿奇霉素。

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Gram-negative bacteria infection, mixed infection group and fungi infection group, serum-PCT levels did not differ significantly.

血清PCT在革兰氏阳性菌、革兰氏阴性菌、混合菌感染与霉菌感染组中无明显差异（p＞0.05）。

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A method of extracting soil total DNA was developed, and it can extract DNA from G+ bacteria.

本文建立了从土壤中提取总DNA的方法，并通过改进使适合于对革兰氏阳性菌的提取。

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The drug resistance of Gram-positive bacteria was also very serious, staphylococci in the MRS between 52.9%-100%, one case of vancomycin-resistant strains was discovered in Enterococcus faecalis.

革兰氏阳性菌的耐药情况也较严重，在葡萄球菌中MRS在52.9%~100%；在粪肠球菌中发现了1例耐万古霉素菌株。

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Both bone cements against Gram-positive bacteria were significantly decreased adhesion ( p0.05).

两种骨水泥对革兰氏阳性菌的黏附均显著降低（p0.05）。

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To explore if the method comprising Limulus amoebocyte lysate ( LAL) test and enumeration of total Gram-negative bacteria ( GNB) can be used for screening of irradiated chicken.

探讨内毒素检测（LAL）与革兰氏阴性菌计数（GNB）相结合的方法应用于辐照鸡肉的筛选的可能性。

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The main component of the endotoxin, lipopolysaccharide ( LPS) derived from the outer membrane of Gram-negative bacteria cell wall is composed by the core oligosaccharide, specific polysaccharide and lipid A which is the active site and the center virulence of LPS.

脂多糖（LPS）是内毒素的主要成分，来源于革兰氏阴性菌细胞壁的外膜，由核心寡聚糖、特异性多糖与类脂A组成，其中类脂A是LPS的活性部位以及毒力中心。

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Methods: 215 isolates of gram-negative bacilli from clinical infectious specimens were determined for the strains producing ESBL by double-disk synergy tests and antibiotic susceptibility test by Kirby-Bauer test.

方法：应用双纸片协同试验法对从临床感染标本中分离出的215株革兰氏阴性菌作ESBL的检测，比较亚胺培南等14种抗生素对产ESBL耐药菌体外抗菌作用。

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Toll-like receptor 4 ( TLR4) is one of the major receptors which mediates the signal's transmembrane transduction, and is of great important to the infective inflammation caused by Gram-negative bacteria.

TLR4细菌脂多糖（li-popolysaccharide，LPS）是介导信号跨膜转导的主要受体，对于革兰氏阴性菌的感染性炎症至关重要。

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Storing meat in a high CO2 atmosphere inhibits gram-negative bacteria, resulting in a population dominated by the lactobacilli.

把肉贮藏在高c02气压条件下可以抑制革兰氏阴性菌，其结果是乳杆菌在数量上占优势。

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Desired to inactivate CD14 in order to further research its functional mechanisms in the condition of infection of gram negative bacteria and the relationship between CD14 and other receptors.

为了进一步研究CD14在革兰氏阴性菌感染中的作用机理以及与其它受体之间的相互关系，拟通过灭活CD14的研究方法以达此目的。

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Among these factors, Gram-negative bacteria infection occupy important status in clinic. The Lipopolysaccharide ( LPS), main composition of endotoxin of its cell wall can cause many kinds of organism damage.

在构成第二次打击的各种致伤因素中，革兰氏阴性菌感染在临床中占有重要地位，其细胞壁内毒素的主要成分脂多糖（Lipopolysaccharide，LPS）可引起多种脏器损伤。

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The enzyme kinetics of 4 SHV types β lactamases from gram negative bacteria were studied spectrophotometrically.

采用分光光度法研究革兰氏阴性菌产生的4种SHV型β-内酰胺酶的动力学。

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Most microorganism degrading pesticides are gram negative, and gram positive strain could hardly been found. So we chose X2 as the material.

由于目前研究的能够降解农药的微生物大多数为革兰氏阴性菌，革兰氏阳性菌较为少见，故选用X2作为实验材料。

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Three Gram-negative bacteria from commercial fresh fish were identified as Pseudomonas sp., an important food spoilage bacteria, on the basis of 16S rDNA sequences.

从市售鲜鱼中分离的3株革兰氏阴性菌，经16S rdna鉴定为假单胞菌属，该菌是一种导致食品腐败的重要腐败细菌。

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Quinolones were synthetic antibiotics for people and animals, acting on Gram-positive and Gram-negative bacterias, always used in preventing diseases in aquaculture.

喹诺酮类（Quinolones）药物是一类人工合成的人畜共用抗生素类药物，对革兰氏阴性菌和阳性菌、支原体、衣原体等有抗菌作用，常被用于水产养殖中的病害防治。

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