0
Fixed T. gondii tachyzoites visualized with immunofluorescence
During different periods of its lifecycle, individual parasites convert into various cellular stages, with each stage characterized by a distinct cellular morphology, biochemistry, and behavior. These stages include the tachyzoites, merozoites, bradyzoites (found in tissue cysts), and sporozoites (found in oocysts).
TachyzoitesMotile, and quickly multiplying, tachyzoites are responsible for expanding the population of the parasite in the host.[
34]
When a host consumes a tissue cyst (containing bradyzoites) or an oocyst (containing sporozoites), the bradyzoites or sporozoites stage-convert into tachyzoites upon infecting the intestinal epithelium of the host.[35]
During the initial, acute period of infection, tachyzoites spread throughout the body via the blood stream.[22]
During the later, latent (chronic) stages of infection, tachyzoites stage-convert to bradyzoites to form tissue cysts.Merozoites
An unstained T. gondii tissue cyst, bradyzoites can be seen within
Like tachyzoites, merozoites divide quickly, and are responsible for expanding the population of the parasite inside the cat intestine prior to sexual reproduction.[
34]
When a feline definitive host consumes a tissue cyst (containing bradyzoites), bradyzoites convert into merozoites inside intestinal epithelial cells. Following a brief period of rapid population growth in the intestinal epithelium, merozoites convert into the noninfectious sexual stages of the parasite to undergo sexual reproduction, eventually resulting in the formation of zygote-containing oocysts.[36]
BradyzoitesBradyzoites are the slowly dividing stage of the parasite that make up tissue cysts. When an uninfected host consumes a tissue cyst, bradyzoites released from the cyst infect intestinal epithelial cells before converting to the proliferative tachyzoite stage.[
35]
Following the initial period of proliferation throughout the host body, tachyzoites then convert back to bradyzoites, which reproduce inside host cells to form tissue cysts in the new host.SporozoitesSporozoites are the stage of the parasite residing within oocysts. When a human or other warm-blooded host consumes an oocyst, sporozoites are released from it, infecting epithelilal cells before converting to the proliferative tachyzoite stage.[
35]
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
When was Toxoplasma gondii created?
Toxoplasma gondii was created in 1908.
What does toxoplasma gondii eat?
little boys named gavin
What is Toxoplasma Gondii?
Toxoplasma Gondi, a single-celled parasite, causes a disease called toxoplasmosis. More than 60 million people in the United States may be infected with the toxoplasma parasite.
How many women of child-bearing age carry the parasite Toxoplasma gondii that causes toxoplasmosis?
The U.S. Centers for Disease Control and Prevention (CDC) estimate that 25-45% of women of childbearing age carry the parasite Toxoplasma gondii that causes toxoplasmosis.
What are two examples of living things that are eukaryotic?
1. Komodo dragon (Varanus komodoensis) 2. Toxoplasma Gondii
What is toxoplasma Ab IgM?
Toxoplasma is commonly known as Toxoplasma gondii. It is obligate intercellular parasite that can infect the widest range of hosts known to science. Ab is an abbreviation for "antibody" of which IgM is one. The full name for IgM is Immunoglobulin M. http://en.wikipedia.org/wiki/Immunoglobulin_M
What group of protist causes malaria and toxoplasmosis?
Toxoplasmosis is a parasitic disease caused by the protozoan Toxoplasma gondii. Malaria is caused by plasmodium, which is a genus of Apicomplexan parasites.
What are some unicellular organisms?
Paramecium bursaria Toxoplasma gondii Crenarchaeota Korarchaeota Testate amoebae Escherichia coli Jonquetella Thermus aquaticus Leptomyxida
What is the source of toxoplasmosis?
The single-celled protozoan Toxoplasma gondii produces eggs in cat intestines. The eggs shed in cat feces and can survive for up to 18 months in the soil.
A parasitic protozoan called toxoplasma gondii can create cysts leading to toxoplasmosis which is especially bad news for pregnant women how might they be exposed to it?
Cleaning the cat litter box
What is toxoplasmosis?
Toxoplasmosis is a disease caused by the parasite Toxoplasma gondii, which is endemic in cats. It is usually caught in the process of cleaning litter boxes. While it can have an effect on adult humans, the effects on unborn children can be much greater, which is why doctors recommend that pregnant women not handle cat litter. The organism that causes the disease is of interest to science because it affects the brains of rats and mice in ways that seem designed to increase the spread of the disease.
What is toxoplasmosis mold?
Actually I also did not know the meaning. But after searching a few minutes I got it, the answer is Toxoplasmosis is a parasitic disease caused by the protozoan Toxoplasma gondii. The parasite infects most genera of warm-blooded animals.
