sporozoite


sporozoite
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), whose progeny, the merozoites, infect the red blood cells to initiate clinical malaria. SYN: germinal rod, zoite, zygotoblast. [sporo- + G. zoon, animal]

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spo·ro·zo·ite -'zō-.īt n a usu. motile infective form of some sporozoans (as the malaria parasite) that is a product of sporogony and initiates an asexual cycle in the new host

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n.
one of the many cells formed as a result of sporogony during the life cyle of a sporozoan. In Plasmodium sporozoites are formed by repeated divisions of the contents of the oocyst inside the body of the mosquito. The released sporozoites ultimately pass into the insect's salivary glands and await transmission to a human host at the next blood meal.

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spo·ro·zo·ite (spor″o-zoґīt) [sporo- + zo- + -ite] the elongate, nucleated, motile infective stage resulting from sporogony in certain protozoa. In malaria, the sporozoites of Plasmodium spp. are liberated from the oocysts in the mosquito, accumulate in the vector's salivary glands, and are transferred to the definitive host by the bite of the infected mosquito.

Medical dictionary. 2011.

Look at other dictionaries:

  • sporozoïte — ● sporozoïte nom masculin Cellule de sporozoaire, issue d une spore. sporozoïte n. m. MED Cellule dérivant de la multiplication des gamètes de l hématozoaire du paludisme, inoculée à l homme par la piqûre de l anophèle. sporozoïte [spɔʀozɔit]… …   Encyclopédie Universelle

  • Sporozoite — Spo ro*zo ite (sp[=o] r[ o]*z[=o] [imac]t), n. (Zo[ o]l.) In certain Sporozoa, a small active, usually elongate, sickle shaped or somewhat am[oe]boid spore, esp. one of those produced by division of the passive spores into which the zygote… …   The Collaborative International Dictionary of English

  • Sporozoite — Sporozoïte Dans le cycle vital des protozoaires Apicomplexa, les sporozoïtes sont des cellules qui infectent de nouveaux hôtes. Par exemple, chez les parasites qui provoquent la malaria, les sporozoïtes sont des cellules qui quittent le moustique …   Wikipédia en Français

  • sporozoite — [spō΄rō zō′īt΄, spôr΄ə zō′īt΄] n. [< ModL Sporozoa (see SPOROZOAN) + ITE2] an infective body or group of cells released from spores in many sporozoans and formed by the division of a zygote: it is the infective stage of the malaria parasite …   English World dictionary

  • sporozoite — noun Etymology: New Latin Sporozoa + International Scientific Vocabulary ite Date: 1888 a usually motile infective form of some sporozoans that is a product of sporogony and initiates an asexual cycle in the new host …   New Collegiate Dictionary

  • Sporozoite — In the life cycle of apicomplexan protozoa, sporozoites ( sporos , seed + zoon , animal) are cells that infect new hosts. In the parasites that cause malaria ( Plasmodium ), for instance, the sporozoites are cells that develop in the mosquito s… …   Wikipedia

  • Sporozoïte — Dans le cycle vital des protozoaires Apicomplexa, les sporozoïtes sont des cellules qui infectent de nouveaux hôtes. Par exemple, chez les parasites qui provoquent le paludisme, les sporozoïtes sont des cellules qui quittent le moustique et… …   Wikipédia en Français

  • sporozoite — n. [Gr. spora, seed; zoon, animal] The stage of development of a sporoblast which has divided and exited the oocyst into the hemocoel and migration begins; the malarial stage found in the salivary glands of insects …   Dictionary of invertebrate zoology

  • sporozoite — /spawr euh zoh uyt, spohr /, n. one of the minute, active bodies into which the spore of certain Sporozoa divides, each developing into an adult individual. [1885 90; SPOROZO(A) + ITE1] * * * …   Universalium

  • sporozoite — noun Any of the minute active bodies into which a sporozoan divides just before it infects a new host cell …   Wiktionary


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