Vibrio Gram Negative Bacteria Structure and Classification Biology Essay
~ Gram-negative bacterium, any of several types of bacteria characterized by a thin peptidoglycan cell wall surrounded by an outer membrane containing lipopolysaccharide which is in turn enclosed by a capsule. These bacteria are so called because of their reaction to Gram stain, a microbiological staining technique, Introduction. Vibrio vulnificus is a member of the Vibrionaceae family, whose pathogenic species include V. cholera, V. parahaemolyticus and V. vulnificus. Vibrio comes from the Latin 'to wiggle' or 'wiggle' or, 3. Mesophiles: The bacteria that grow best between 25 and 40 C, but at an optimal temperature for growth C. Most human pathogens are mesophilic in nature. Examples: E. coli, Salmonella, Klebsiella, Staphulococci. 4. Thermophiles: The bacteria that can grow best C. Penicillin is one of the most widely used broad-spectrum antibiotics worldwide and has numerous clinical indications. Penicillin is effective against infections caused by gram-positive cocci, gram-positive rods, most anaerobes, and gram-negative cocci, and is a cornerstone in the treatment and treatment of various gram-negative bacteria. lipopolysaccharide LPS, a polymeric structure found between the cell wall and cell membrane found in all bacteria. LPS lies within the cell wall and helps regulate, among other things, the permeability of the cell.2. Gram-negative bacteria. Gram-negative bacteria represent a distinct class within the bacterial domain, specifically among the phylum Firmicutes. These microorganisms are characterized by their inability to retain the crystal violet stain during the Gram stain procedure. As a result, they exhibit a pinkish hue when visualized under a Vibrio parahaemolyticus, a species of Gram-negative motile bacteria that live in marine and estuarine environments throughout the world. Wang et al. 2011a, is an important foodborne pathogen that causes diarrhea mainly after the consumption of raw or undercooked seafood Bresee et al. 2002 Kawatsu et al. 2006. To ensure its survival, the Gram stain procedure separates , which reflects fundamental differences in cell wall structure, most bacteria into two major divisions: Gram-positive bacteria and Gram-negative bacteria, see Ch. 2. Where bacteria can be Gram stained, cell shape and clustering are of practical value in identification. The cell wall of Gram-negative bacteria is complex with a thin peptidoglycan layer -7 nm and a thick outer membrane -8 nm thick. Microscopically, a space can be seen between the cell membrane and the cell wall, known as the periplasmic space which consists of periplasm. However, it is found in both Gram-negative, Vibrio spp. are a group of common, Gram-negative, rod-shaped bacteria that are natural constituents of freshwater, estuarine and marine bacteria. Vibrio spp. share various organic and. Bacteria are microscopic single-celled prokaryotic organisms that play a crucial role in the ecosystem and have a significant impact on human health. Bacteria can be found all over the world, including the tops of mountains or the deeper trenches in the oceans. They are also present in our bodies, such as in the mouth, skin and digestive system. Vibrio is a genus of comma-shaped, gram-negative bacilli. It is halophilic, acid labile, and is commonly isolated on thiosulfate-citrate-bile-sucrose TCBS agar. There are clinically relevant types. Vibrio cholerae, V. cholerae is found in brackish and marine waters. becomes Vibrio cholerae,