Cercaria of the Trematode Plagiorchis Mutationis (Trematoda, Plagiorchiidae) from the Pond Snails, Lymnaea Stagnalis, in Ukraine
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منابع مشابه
Chemosensitivity of the osphradium of the pond snail Lymnaea stagnalis
The osphradium of the pond snail Lymnaea stagnalis was studied to determine the stimuli to which this organ responds. The following stimuli were tested: hypoxia, hypercapnia, a mixture of amino acids, a mixture of citralva and amyl acetate and a mixture of lyral, lilial and ethylvanillin. The mean nerve activity consistently increased with elevated PCO2, whereas hypoxia produced variable effect...
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Lateralization of the brain has traditionally been considered a specialization that is confined to the vertebrates, but recent studies have revealed that a range of invertebrates also have a brain that is structurally asymmetric and/or each side performs a different set of functions. Here, we show that the precopulatory mating behaviour of the pond snail Lymnaea stagnalis is lateralized. We pre...
متن کاملOn the Ultrastructure and Function of Rhogocytes from the Pond Snail Lymnaea stagnalis
Rhogocytes, also termed "pore cells", occur as solitary or clustered cells in the connective tissue of gastropod molluscs. Rhogocytes possess an enveloping lamina of extracellular matrix and enigmatic extracellular lacunae bridged by cytoplasmic bars that form 20 nm diaphragmatic slits likely to act as a molecular sieve. Recent papers highlight the embryogenesis and ultrastructure of these cell...
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Trematodes are important in economic and public health. Ornithobilharzia turkestanicum (O. turkestanicum) is one of the important economic trematodes in domestic animals. Ornithobilharzia infection in intermediate host (Lymnaea gedrosiana ) can be detected by either exposing snails to light to induce cercarial shedding or by squeezing them between glass slides to detect parasites. The current...
متن کاملFactors affecting the acquisition of Plagiorchis noblei (Trematoda: Plagiorchiidae) metacercariae by larvae and pupae of Aedes aegypti in the laboratory.
When exposed to concentrations of less than one Plagiorchis noblei cercariae per cc of water, the acquisition of metacercariae by Aedes aegypti larvae increased significantly with each successive instar but declined precipitously upon pupation. Thus, 1st instar larvae acquired no metacercariae, whereas 4th instars had a mean abundance of 6.15: pupae only acquired a mean of 0.62 parasites. Paras...
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ژورنال
عنوان ژورنال: Vestnik Zoologii
سال: 2010
ISSN: 2073-2333,0084-5604
DOI: 10.2478/v10058-010-0022-x