parasitoid

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Related to Parasitic organisms: Ectoparasites

par·a·si·toid

(par'ă-sī'toyd),
Denoting a feeding relationship intermediate between predation and parasitism, in which the parasitoid eventually destroys its host; refers especially to parasitic wasps (order Hymenoptera) the larvae of which feed on and finally destroy a grub or other arthropod host stung by the mother wasp before laying its egg(s) on the host.
[parasite + G. eidos, appearance]

parasitoid

(păr′ə-sĭ-toid′, -sī′toid)
n.
An organism, usually an insect, that lives on or in a host organism during some period of its development and eventually kills its host.

par′a·sit·oid′ adj.

parasitoid

any of the alternately parasitic and free-living wasps and flies, such as the ichneumon fly, whose larvae parasitize and often kill members of the host species.
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Studies of parasites which have developmental stages in both poikilotherm and homeotherms have suggested that thermal tolerance may be a common property of many parasitic organisms.
To distinguish them from truly parasitic organisms, these wasps have been given the name ``parasitoids.
For example, bacterial and parasitic organisms occur quite frequently in and around raw water sources," said Reinert.
In the discussion that follows, each of the parasitic organisms known to cause transfusion-transmitted parasitic infection in the U.
For example, DOD-sponsored scientists are seeking defenses against viruses that cause yellow fever, Rift Valley fever, Korean hemorrhagic fever and dengue fever; bacteria causing botulism, anthrax and plague; various snake-venom and animal toxins; and several parasitic organisms.
Our work with the FDA has ensured that the FTA Concentrator-PS is easy to use, so that field agents as well as local governments and producers have a simple, reliable means to ensure their water is free of parasitic organisms.
We found a tremendous amount of biological validation for the existence and use of this pathway in both parasitic organisms," Greenbaum said.
Pet waste contains bacteria and parasitic organisms that, when washed into local waterways, can contaminate streams and rivers.
Address for correspondence: Zhao-Rong Lun, Zhongshan (Sun Yat-Sen) University, Center for Parasitic Organisms, 135 Xingan Xi Road, Guangzhou, 510275, People's Republic of China, fax: 8620-8403-6215; email: lsslzr@zsu.
Although these categories seem well defined, there is often much confusion in classifying parasitic organisms.
They found that injections with saliva resulted in sores that were five to 10 times larger than those induced by parasitic organisms alone, and that the saliva-enhanced lesions had as much as 5,000 times more parasites within a month after innoculation.
A second patent was also filed this month relating to a culture medium for parasitic organisms, which is part of Astralis' technology platform.