相关实验视频

Updated: May 26, 2026

Using the Overlay Assay to Qualitatively Measure Bacterial Production of and Sensitivity to Pneumococcal Bacteriocins

Using the Overlay Assay to Qualitatively Measure Bacterial Production of and Sensitivity to Pneumococcal Bacteriocins

Published on: September 30, 2014

帕拉莱奇尼辛DY4是一种新的类似细菌素的物质,用于控制Clostridium perfringens

Haiyan Wang¹, Linkang Wang¹, Fenqiang Zhang¹

¹National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China; College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China; Key Laboratory of Preventive Veterinary Medicine in Hubei Province, Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, People's Republic of China.

International journal of biological macromolecules

|September 8, 2024

概括

一种新的类似细菌素的物质,ParalichenysinDY4,通过准其细胞膜,有效地对抗Clostridium perfringens. 这一发现为治疗C. perfringens感染提供了抗生素的有希望的天然替代品.

科学领域:

微生物学微生物学
生物化学生物化学
药理学药理学是指药理学的学科.

背景情况:

杆菌 (Clostridium perfringens) 是一种引起人类和动物疾病的重要病原体.
抗生素耐药性需要开发新的抗菌剂.
细菌素为传统抗生素提供了一个可行的替代品.

研究的目的:

调查ParalichenysinDY4的潜力,一种来自Bacillus paralicheniformis DY4的新型细菌素类物质,作为对Clostridium perfringens的替代剂.
描述ParalichenysinDY4的特征并阐明其作用机制.
在体外和体内评估ParalichenysinDY4的疗效和安全性.

主要方法:

用甲醇提取,凝过和HPLC将ParalichenysinDY4分离和净化.
质谱测量用于序分析.
抗菌活性测定,流细胞计和扫描电子显微镜以确定作用机制.

主要成果:

帕拉莱奇尼辛DY4被确定为一种新的类似细菌素的物质,之前没有已知的匹配.
该物质表现出有效的抗菌活性和针对Clostridium perfringens的广泛抗菌谱.
作用机制涉及破坏细菌细胞膜.

结论:

帕拉利希尼辛DY4是一种新型,强效的抗菌剂,用于对抗Clostridium perfringens.
它的细胞膜向机制和稳定性使其成为天然抗微生物疗法的有希望的候选者.
帕拉基尼辛DY4显示出在体和体内应用的潜力,用于对抗C. perfringens.

关键词:

抗微生物活性的抗菌活性.巴西类虫的形状是类似的.一种类似于细菌素的物质.克洛斯特里 (Clostridium perfringensens) 是一种有毒的植物.作用方式作用方式天然的抗微生物剂是天然的抗微生物剂.

更多相关视频

A Method to Assess Bacteriocin Effects on the Gut Microbiota of Mice

A Method to Assess Bacteriocin Effects on the Gut Microbiota of Mice

Published on: July 25, 2017

Enrichment and Detection of Clostridium perfringens Toxinotypes in Retail Food Samples

Enrichment and Detection of Clostridium perfringens Toxinotypes in Retail Food Samples

Published on: October 18, 2019

相关概念视频

Methods for Controlling Microbial Growth

Methods for Controlling Microbial Growth

Microbial growth control refers to various methods employed to inhibit, reduce, or eliminate microorganisms to ensure safety and hygiene across different settings. These methods are categorized based on the target environment and the level of microbial control required.Biocides are versatile agents designed to control microorganisms by either inhibiting their growth or outright killing them. These agents work through various physical, chemical, mechanical, or biological mechanisms. The...

Biological Methods for Microbial Control

Biological Methods for Microbial Control

Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...

Gene Regulation in Microbial Communities: Quorum Sensing

Gene Regulation in Microbial Communities: Quorum Sensing

Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...

Production of Antibiotics

Production of Antibiotics

Penicillin, one of the earliest and most widely used antibiotics, is produced industrially by the filamentous fungus Penicillium chrysogenum. Large stirred-tank bioreactors ranging from tens to hundreds of thousands of liters maintain tightly controlled temperature, pH, and dissolved oxygen conditions to support fungal metabolism and maximize antibiotic yield. Penicillin is a secondary metabolite, synthesized primarily during the stationary growth phase, which requires a carefully managed...

Production of Biopesticides

Production of Biopesticides

Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...

Bacterial Toxins

Bacterial Toxins

Bacterial toxins are sophisticated virulence factors that enable pathogenic bacteria to interact with, invade, and damage host tissues. These toxins fall broadly into two types: protein exotoxins, which are secreted into the environment and target specific host receptors, and lipopolysaccharide endotoxins, which are structural components of the bacterial outer membrane released primarily during bacterial lysis or membrane shedding. Exotoxins generally act more selectively, binding to cell...