Osmoregulation in the parasitic nematode Pseudoterranova decipiens
نویسندگان
چکیده
منابع مشابه
Water compartments and osmoregulation in the parasitic nematode Pseudoterranova decipiens.
A study of the time course of penetration of 3H2O into whole worms suggests that worms immersed in a hypo-osmotic environment (15% artificial sea water) reach full exchange equilibrium more slowly than worms in an iso-osmotic environment (40% artificial sea water). The apparent water content, determined by dry mass, matches that determined by 3H2O exchange when worms are immersed for 24 h in 40...
متن کاملStress-induced failure of osmoregulation in the parasitic nematode Pseudoterranova decipiens: indirect evidence for hormonal regulation.
When third-stage larvae of Pseudoterranova decipiens maintained at 5 degrees C are placed in either 40% artificial sea water (ASW, iso-osmotic) or 15% ASW (hypo-osmotic) and weighed once at 0 h and again at 24 h, they neither lose nor gain weight, and the osmotic pressure (OP) of their pseudocoelomic fluid (PCF) remains unchanged. In contrast, when worms are weighed six additional times during ...
متن کاملMolecular diagnosis of Pseudoterranova decipiens s.s in human, France
BACKGROUND Anisakis and Pseudoterranova are the main genera involved in human infections caused by nematodes of the Anisakidae family. Species identification is complicated due to the lack of differential morphological characteristics at the larval stage, thus requiring molecular differentiation. Pseudoterranova larvae ingested through raw fish are spontaneously eliminated in most cases, but me...
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Pseudoterranova decipiens larva is a rare cause of anisakiasis. Indeed, prior to the present study, there had been only 12 reports of larval P. decipiens infection in the Republic of Korea. In June 2011, an anisakid larva, 32.1 mm in length and 0.88 mm in width, and finally identified as the third stage larva of P. decipiens owing to the presence of an intestinal cecum but lacking ventricular a...
متن کاملOsmoregulation in the Antarctic nematode Panagrolaimus davidi.
A technique for determining the internal osmotic concentration of a small nematode using a modified nanolitre osmometer is described and used to investigate osmoregulation in the Antarctic nematode Panagrolaimus davidi. This technique enables the osmotic concentration to the measured with an accuracy of +/-12 mmol kg(-1). The pattern of melting in the nematode's different body compartments sugg...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 1993
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.175.1.127