Redia


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Related to Redia: Metacercariae, cercariae

redia

[′rē·dē·ə]
(invertebrate zoology)
A larva produced within the miracidial sporocyst of certain digenetic trematodes which may give rise to daughter rediae or to cercariae.

Redia

 

one of the parthenogenetic generations of the digenetic flukes, or trematodes, which parasitizes an intermediate host (mollusks). The redia develops in the body cavity of the worm’s first parthenogenetic generation, the sporocyst. It in turn produces the cercaria, the larvae of the sexually mature flukes. Unlike the sporocyst, the redia has a mouth opening, a pharynx, an intestine, and a birth pore.

References in periodicals archive ?
The life cycle of Haplorchis pumilio was studied from redia to adult both under natural and experimental conditions.
Redia Anderson, chief diversity officer at Deloitte & Touche, says companies have to do a better job of tapping pools of women and minority executives.
En el otro caso, la creacion de la Comision de Cooperacion Ambiental para America del Norte constituye una coyuntura importante para las organizaciones ambientales, pues es un factor crucial para el seguimiento de las demandas de la REDIA.
However, we saw only tailed cercariae, albeit the tails easily detached within redia. Lebour (1910) observed cercariae with and without tails within the same redia (and the tails were easily detached).
The miracidium, upon release from the egg, will infect a susceptible snail host and internally will continue to develop into sporocyst form, transforming into the redia where a mass of cercarial stages is enclosed.
The cercaria of Cotylurus (Cotylurus) lutzi encysts in ovotestis of molluscs or hyperparasitizes the redia or sporocysts of other trematodes, developing encysted metacercariae of the "tetracotyle" form (Yamaguti, 1975).
Redia Castillo, general manager of PowerUp, led the programme of the event and said that the cyclists were supported by official pilot cars supplied by Nissan.
The Fasciola larval stages sporocyst, redia, and cercaria are in division phases of F.
Le Moullec et al., "Prevalence of Type 2 diabetes and central adiposity in La Reunion Island, the REDIA study," Diabetes Research and Clinical Practice, vol.
Palo de Cruz (Redia portoricensis), guaraguao seeds (Guarea guidonea), and many others, as well as supplementation with additional vitamin E provide further psychological and physiologic enrichment for breeding males at the time they are moved into the new breeding enclosures.
Summary: Last month Redia Castillo was invited to experience the beauty and magic of Hong Kong on a media fam-trip organised by Cathay Pacific, in collaboration with Hong Kong Tourism Board (HKTB).