A bacteriophage
is a type of virus that infects bacteria. In fact, the word “bacteriophage” literally means “bacteria eater,” because bacteriophages destroy their host cells.
What are the types of bacterial viruses?
- Campylobacter.
- Clostridium perfringens.
- E. coli.
- Listeria.
- Norovirus.
- Salmonella.
What are bacterial viruses?
A virus that injects its genome into a host bacteria
, initiating production of new viruses and viral DNA; a bacteriophage.
How are bacterial viruses named?
All bacterial and many viral genes are
italicized
. Serovars of Salmonella enterica are not italicized. For organisms other than bacteria, fungi, and viruses, scientific names of taxa above the genus level (families, orders, etc.) should be in roman type.
What are phages made of?
Like all viruses, phages are simple organisms that consist of
a core of genetic material (nucleic acid) surrounded by a protein capsid
. The nucleic acid may be either DNA or RNA and may be double-stranded or single-stranded.
What are 5 diseases caused by bacteria?
Other serious bacterial diseases include
cholera, diphtheria, bacterial meningitis, tetanus, Lyme disease, gonorrhea, and syphilis
.
What are 3 differences between viruses and bacteria?
Viruses are tinier: the largest of them are smaller than the smallest bacteria. All they have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria,
viruses can’t survive without a host
. They can only reproduce by attaching themselves to cells.
Can a virus turn into a bacterial infection?
Summary: Respiratory viral infections may
facilitate secondary bacterial infections
and increase host immunopathology through the overproduction of inflammatory cytokines.
Can bacterial infection go away without antibiotics?
Antibiotics are only needed for treating certain infections caused by bacteria, but even
some bacterial infections get better without antibiotics
. Antibiotics aren’t needed for many sinus infections and some ear infections.
Which are the 2 main criteria used in classifying viruses?
Morphology: Viruses are grouped on the basis of
size and shape, chemical composition and structure of the genome, and mode of replication
. Helical morphology is seen in nucleocapsids of many filamentous and pleomorphic viruses.
What are the 10 types of bacteria?
- Deinococcus radiodurans.
- Myxococcus xanthus. …
- Yersinia pestis. …
- Escherichia coli. …
- Salmonella typhimurium. …
- Epulopiscium spp. The big boy of the kingdom – about as large as this full stop. …
- Pseudomonas syringae. Dreaming of a white Christmas? …
- Carsonella ruddii. Possessor of the smallest bacterial genome known, C. …
What are the 3 types of viruses?
- Macro viruses – These are the largest of the three virus types. …
- Boot record infectors – These viruses are known also as boot viruses or system viruses. …
- File infectors – These viruses target .
What are 5 characteristics of viruses?
These are: 1) attachment; 2) penetration; 3) uncoating; 4) replication; 5) assembly; 6)release. As shown in , the virus must first attach itself to the host cell.
Where can phages be found?
Also known as phages (coming from the root word ‘phagein’ meaning “to eat”), these viruses can be found
everywhere bacteria exist
including, in the soil, deep within the earth’s crust, inside plants and animals, and even in the oceans. The oceans hold some of the densest natural sources of phages in the world.
What do phages look like?
A bacteriophage is a virus that infects bacteria
The capsid of a bacteriophage can be
icosahedral, filamentous, or head-tail in shape
.
Do viruses have DNA?
Most viruses have either RNA or DNA as their genetic material
. The nucleic acid may be single- or double-stranded. The entire infectious virus particle, called a virion, consists of the nucleic acid and an outer shell of protein. The simplest viruses contain only enough RNA or DNA to encode four proteins.
