Table of Contents
What is F Episome?
Nomenclature. Episome: A circular piece of DNA that can replicate independently of the bacterial chromosome or integrate and replicate as part of the chromosome. F factor: An episome in bacterial cells that confers the ability to act as a genetic donor during conjugation.
What is Laclq?
Quick Reference. A mutation in the promoter of the lacI gene of E. coli that results in increased transcription and higher levels of lac repressor within cells. From: lacIq in Oxford Dictionary of Biochemistry and Molecular Biology » Subjects: Science and technology — Chemistry.
What is Col factor?
class of plasmid In plasmid. One class of plasmids, colicinogenic (or Col ) factors, determines the production of proteins called colicins, which have antibiotic activity and can kill other bacteria. Another class of plasmids, R factors, confers upon bacteria resistance to antibiotics.
What is pGEX 2t?
Bacterial vector for expressing GST fusion proteins with a thrombin site.
What is hybrid promoter?
A hybrid promoter engineering approach was utilized for the construction of phenolic-inducible promoters of higher strength. The hybrid promoters were constructed by replacing the spacer region of an endogenous promoter, PemrR present in E. coli that was naturally inducible by phenolics.
What is F Factor R Factor?
R plasmids: Also called the resistance plasmids and are responsible for resistance to the drugs. Sex factor plasmids: The cell which possesses this plasmid are called as F+, or male, or the donor cell, while the cells which do not possess this plasmid is called as “F-” or the recipient cell.
What is Col plasmid?
Col plasmids, which contain genes that code for bacteriocins, proteins that can kill other bacteria. Degradative plasmids, which enable the digestion of unusual substances, e.g. toluene and salicylic acid. Virulence plasmids, which turn the bacterium into a pathogen.
What does Hfr mean?
HFR stands for high frame rate. It is generally attached to content and screen technology that can refresh faster than 24 frames per second. Why 24fps? It was chosen as the standard for big screen movie releases because it is the minimum frame rate that can produce decent sound quality.
What is the best antibiotic for streptomycin-resistance in Michigan?
In streptomycin-resistance situations, Kasumin is the antibiotic of choice and is best used in advance of moderate to high risk conditions. This is because where we have detected streptomycin resistance in orchards in Michigan, the incidence of resistant bacterial pathogen strains is usually very high to 100%.
What is streptomycin used for in agriculture?
Streptomycin controls bacterial and fungal diseases of certain fruit, vegetables, seed, and ornamental crops, and controls algae in ornamental ponds and aquaria. The use of streptomycin to control fireblight on apples and pears accounts for 58% of its total use.
What is the regulatory history of streptomycin?
Regulatory History. Streptomycin has been used in the United States as a drug to treat bacterial infections in humans since the 1940s. It was first registered as a pesticide in 1955, for use in controlling bacterial and fungal diseases of certain agricultural and non-agricultural crops.
What is a substitute for streptomycin in orchards?
If the disease risk is low to moderate, oxytetracycline is also an effective substitute for streptomycin in orchards where streptomycin resistance occurs. The target of antibiotic sprays for fire blight control is the stigma surface, style and base of the flower.