sporozoite

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Related to Sporozoites: Merozoites

sporozoite

 [spor″o-zo´īt]
a spore formed after fertilization; any one of the sickle-shaped nucleated germs formed by division of the protoplasm of a spore of a sporozoan organism. In malaria, the sporozoites are the forms of the plasmodium that are liberated from the oocysts in the mosquito, that accumulate in the salivary glands, and that are transferred to humans when the mosquito feeds.

spo·ro·zo·ite

(spō'rō-zō'īt),
One of the minute elongated bodies resulting from the repeated division of the oocyst during sporogony. In the case of the malarial parasite, it is the form that is concentrated in the salivary glands and introduced into the blood by the bite of a mosquito; it enters the liver cells (exoerythrocytic cycle), the progeny of which, the merozoites, infect the red blood cells to initiate clinical malaria.
[sporo- + G. zōon, animal]

sporozoite

/spo·ro·zo·ite/ (-zo´īt) the motile, infective stage of certain protozoa that results from sporogony.

sporozoite

(spôr′ə-zō′īt′)
n.
Any of the cells that are released from the oocyst of an apicomplexan parasite and invade a new host cell.

sporozoite

[spôr′əzō′īt]
Etymology: Gk, sporos + zoon, animal
any of the cells resulting from the sexual union of spores during the life cycle of a sporozoon. It refers specifically to the elongated nucleated cells produced by the multiple fission of the zygote contained in the oocyst in the female Anopheles mosquito during the sexual reproductive stage of the life cycle of the malarial parasite Plasmodium. On release from the oocyst, the sporozoites migrate to the salivary glands of the mosquito, where they are transmitted to humans and develop within the parenchymal cells of the liver as merozoites. Also called falciform body. See also malaria, Plasmodium.

spo·ro·zo·ite

(spōr'ō-zō'īt)
One of the minute elongated bodies resulting from the repeated division of the oocyst during sporogony. In the case of the malarial parasite, it is the form that is concentrated in the salivary glands and introduced into the blood by the bite of a mosquito; it enters the liver cells (exoerythrocytic cycle); its progeny, the merozoites, infect the red blood cells to initiate clinical malaria.
[sporo- + G. zōon, animal]

sporozoite

A motile reproductive form of a SPOROZOON that has been released from an oocyst and is ready to penetrate a new host cell, as in malaria transmission.

sporozoite

any of the very small mobile spores formed by multiple fission of a protozoan zygote, as in the MALARIA PARASITE.

sporozoite

a spore formed after fertilization; a sickle-shaped nucleated germ formed by division of the protoplasm during sporogony (asexual replication) of an apicomplexan parasite. The sporozoite is an infective stage (e.g. Eimeria, Cryptosporidium).
References in periodicals archive ?
6 Caryospora Sporozoite size, species [micro]m (range, [micro]m) Host C kutzeri 4.
tenella sporozoites than antigen alone with a similar dose and schedule and BREED et al.
By 1983, the 7G8 strain (chloroquine resistant) was cloned from a Brazilian patient sample and, in regular production at WRAIR, showed low numbers of oocysts and sporozoites but with greater consistency than any other strain.
These immature parasites, known as sporozoites, are then weakened so they cannot cause illness and incorporated into a vaccine, which must be injected into a person's veins several times, with each shot about a month apart.
The new vaccine, known as PfSPZ, employs an old but more radical approach using whole Plasmodium falciparum sporozoites (SPZs), a mobile immature form of the parasite.
Secondly, experimental immunization of non-immune volunteers with sporozoites previously attenuated through irradiation has demonstrated that up to 90% of the individuals vaccinated develop sterile protection against the experimental infection (7).
Quinine acts primarily as a blood scizonticide; it has little effect on sporozoites or pre-erythrocytic forms of malarial parasites.
tenella because the developmental stages, sporulated oocysts and sporozoites, of this Eimeria spp.
vivax gametocytes to develop into infectious sporozoites after an adult mosquito has taken a blood meal from an infected human host [referred to as the extrinsic incubation period (EIP)].
Al (2004) Protective T cell immunity against malaria liver stage after vaccination with live sporozoites under chloroquine treatment.
One of the institute's approaches to creating a vaccine centers around immature forms of the malaria parasite called sporozoites, which are carried in the saliva glands of female malarial mosquitoes and transferred into humans when they bite.
One of the institute's approaches to creating a vaccine centres around immature forms of the malaria parasite called sporozoites, which are carried in the saliva glands of female malarial mosquitoes and transferred into humans when they bite.