hemocoel


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hemocoel

[′hē·mə‚sēl]
(invertebrate zoology)
An expanded portion of the blood system in arthropods that replaces a portion of the coelom.
References in periodicals archive ?
This pouch connects the growing bud with the hemocoel of the mother bud, ensuring that hemolymph and oxygen reach the new bud, while the rudiment for the vascular connection to the rest of the colony will be initiated underneath by an outgrowth of the epithelium layer (Berrill, 1947), later producing the radial vessel (Burighel and Brunetti, 1971).
rams, procercoids inhabit the hemocoel of a cyclopoid copepod and the definitive host can be infected during its larval stage either by swallowing an infected copepod or as an adult by accidentally swallowing an infected intermediate host (Thomas 1937b; Jarroll 1979; 1980).
Fate of some culture flagellates in the hemocoel of Rhodnius prolixus.
The genetic basis can include a single gene with large effect for the appeal of parasite eggs to feeding beetles or the ability of parasite eggs to penetrate the gut lining and move into the hemocoel.
After invading the hemocoel of the host insect these nematodes release a toxin that inhibits the insect immune system, and then release bacterial symbionts from their intestine.
Species of Ascarops, Gongylonema and Physocephalus, superfamily Spiruroidea, are generally recognized as parasites of birds and mammals (Anderson, 1992), with initial development occurring in the hemocoel of an insect intermediate host.
The specialized third stage juvenile, called the infective juvenile, is the only free living stage which upon finding suitable host enters through natural openings (anus, spiracles, and mouth), penetrate into the hemocoel and discharge the symbiotic bacteria that multiply and kill the hosts within 48 h by septicemia (Burnell and Stock, 2000).
It parasitizes the eggs, mycangia, and hemocoel of female wood wasps, leaving wasps unable to lay viable eggs (Keeler 2012; Kroll et al.
Cyclopoid copepods act as first intermediate host and consume stage 2 larvae (L2) that develop into early L3) in the copepod's hemocoel.
This gland occupies the full dorsal hemocoel, lateral to the digestive tract and heart, and partially covering the branchial chambers.
In ants, injection of Blochmannia into the ant hemocoel triggers a host immune response, suggesting the ant immune system could be involved in controlling symbiont populations (Ratzka et al.
The disease cycle begins with conidia contacting and adhering to the integument of the host (Figure 1), followed by germination, appressorium production (Figure 2a) or without appressorium formation (Figure 2b), penetration (Figure 3a,b), development in the hemocoel with the dimorphic (yeast-like forms) stage represented by the formation of short, thick and septated hyphal bodies, mostly with one or more septation (Figure 3a), to mycelial exteriorisation (Figure 4a,b) and as shown (Figure 6 a,b) on pupae mycelial exteriorisation and conidiogenesis on the carcass.