What is sporogony in malaria?
Transmission of malaria relies on the successful development of Plasmodium parasites within mosquitoes, a process termed sporogony. Sporogony is a complex event involving several morphologically distinct life-stages [1, 2] and begins when mosquitoes ingest blood containing male and female gametocytes.
What happens during sporogony?
During sporogony, the encysted parasite becomes haploid again and undergoes multiple mitoses until the oocyst contains thousands of motile sporozoites. The oocyst bursts, releasing sporozoites, which make their way to the salivary glands and penetrate the secretory cells.
What is sporogony cycle?
The gametocytes, male (microgametocytes) and female (macrogametocytes), are ingested by an Anopheles mosquito during a blood meal . The parasites’ multiplication in the mosquito is known as the sporogonic cycle .
Where does sporogony of malaria parasite occur?
stomach wall of mosquito
Sporogony of malarial parasites occur in stomach wall of mosquito. It is an asexual multiplication phase. The nucleus of the oocyst divides and followed by cytoplasmic division, several sporozoites are formed.
What is sporogony and schizogony?
Sporogony is an asexual stage of spore formation in parasites. Schizogony is the multiplicative stage of the parasites. Mechanism. The oocyte divides mitotically to produce infectious sporozoites. The sporozoites divide rapidly to produce merozoites.
What is Sporogony and schizogony?
What is sporozoites BYJU’s?
Sporozoite is a motile, infective form of few sporozoans that is an outcome of sporogony initiating an asexual cycle in the new host. A sporozoite is a cell form that infects the new hosts.
Where are sporozoites formed?
The sporozoites are transmitted via the saliva of a feeding mosquito to the human bloodstream. From there they enter liver parenchyma cells, where they divide and form merozoites.
What are sporozoites and merozoites?
Gametocytes within a mosquito develop into sporozoites. The sporozoites are transmitted via the saliva of a feeding mosquito to the human bloodstream. From there they enter liver parenchyma cells, where they divide and form merozoites. The merozoites are released into the bloodstream and infect…
What is a sporozoite?
Definition of sporozoite : a usually motile infective form of some sporozoans that is a product of sporogony and initiates an asexual cycle in the new host.
What is the difference between sporozoites and Plasmodium?
The key difference between merozoites and sporozoites is that merozoites are the form of malaria parasite that infects red blood cells, while sporozoites are the form of malaria parasite that infects liver cells. Plasmodium is a parasitic protozoan. It is the causative agent of malaria.
What is the shape of sporozoites?
Sporozoites are an elongated crescent shape and tailored for lasting continuous locomotion and host cell invasion.
What is the structure of trophozoite?
The ventral disc is the most distinctive structure of the trophozoite. It has been called the sucker cup, striated disc, and adhesive disc. Its shape is supported by a complex cytoskeleton of microtubules, microfilaments, and associated fibrous structures.