- 1 How does horizontal gene transfer relate to antibiotic resistance?
- 2 How antibiotic resistant genes are transferred among bacteria?
- 3 What factors contribute to antibiotic resistance?
- 4 What is the benefit of horizontal gene transfer?
- 5 What is the process of horizontal gene transfer?
- 6 How can you protect yourself from antibiotic resistant bacteria?
- 7 How can I prevent antibiotic resistant infections?
- 8 How do antibiotic resistant bacteria develop?
- 9 What are examples of antibiotic resistance?
- 10 What are the two ways that bacteria can acquire antibiotic resistance?
- 11 What are the disadvantages of horizontal gene transfer?
- 12 What is an example of horizontal gene transfer?
- 13 Can viruses do horizontal gene transfer?
How does horizontal gene transfer relate to antibiotic resistance?
Horizontal gene transfer (HGT) contributes significantly to the rapid spread of resistance, yet the transmission dynamics of genes that confer antibiotic resistance are poorly understood. Multiple mechanisms of HGT liberate genes from normal vertical inheritance.
How antibiotic resistant genes are transferred among bacteria?
Bacteria can share genes with each other in a process called horizontal gene transfer. This can occur both between bacteria of the same species and between different species and by several different mechanisms, given the right conditions.
What factors contribute to antibiotic resistance?
In summary, the 6 main causes of antibiotic resistance have been linked to:
- Over-prescription of antibiotics.
- Patients not finishing the entire antibiotic course.
- Overuse of antibiotics in livestock and fish farming.
- Poor infection control in health care settings.
- Poor hygiene and sanitation.
What is the benefit of horizontal gene transfer?
Horizontal gene transfer is the primary mechanism for the spread of antibiotic resistance in bacteria, and plays an important role in the evolution of bacteria that can degrade novel compounds such as human-created pesticides and in the evolution, maintenance, and transmission of virulence.
What is the process of horizontal gene transfer?
Horizontal gene transfer (HGT) is the movement of genetic information between organisms, a process that includes the spread of antibiotic resistance genes among bacteria (except for those from parent to offspring), fueling pathogen evolution. Figure 1.
How can you protect yourself from antibiotic resistant bacteria?
No one can completely avoid getting an infection, but there are steps you can take to reduce your risk.
- Know Your Risk, Ask Questions, and Take Care.
- Clean Your Hands.
- Get Vaccinated.
- Be Aware of Changes in Your Health.
- Use Antibiotics Appropriately.
- Practice Healthy Habits Around Animals.
- Prepare Food Safely.
How can I prevent antibiotic resistant infections?
There are many ways that drug – resistant infections can be prevented: immunization, safe food preparation, handwashing, and using antibiotics as directed and only when necessary. In addition, preventing infections also prevents the spread of resistant bacteria.
How do antibiotic resistant bacteria develop?
Bacteria develop resistance mechanisms by using instructions provided by their DNA. Often, resistance genes are found within plasmids, small pieces of DNA that carry genetic instructions from one germ to another. This means that some bacteria can share their DNA and make other germs become resistant.
What are examples of antibiotic resistance?
Important examples are:
- methicillin- resistant Staphylococcus aureus (MRSA)
- vancomycin- resistant Enterococcus (VRE)
- multi- drug – resistant Mycobacterium tuberculosis (MDR-TB)
- carbapenem- resistant Enterobacteriaceae (CRE) gut bacteria.
What are the two ways that bacteria can acquire antibiotic resistance?
There are two main ways that bacterial cells can acquire antibiotic resistance. One is through mutations that occur in the DNA of the cell during replication. The other way that bacteria acquire resistance is through horizontal gene transfer.
What are the disadvantages of horizontal gene transfer?
In contrast, if a gene is acquired horizontally, there is no guarantee that it increased the fitness of the previous individual. Although there is the potential to gain useful new genes by HGT, there is also the possibility of acquiring useless or harmful genes.
What is an example of horizontal gene transfer?
The majority of examples of horizontal gene transfer are known in prokaryotes. In bacteria, three principal mechanisms can mediate horizontal gene transfer: transformation (uptake of free DNA ), conjugation (plasmid-mediated transfer ), and transduction (phage-mediated transfer ).
Can viruses do horizontal gene transfer?
ABSTRACT. Horizontal gene transfer commonly occurs from cells to viruses but rarely occurs from viruses to their host cells, with the exception of retroviruses and some DNA viruses.