CO2-fixing enzymes and phosphoenolpyruvate metabolism in the fish parasite Hysterothylacium aduncum (Ascaridoidea, Anisakidae)
نویسندگان
چکیده
منابع مشابه
Proteolytic activity in Hysterothylacium aduncum (Nematoda: Anisakidae), a fish gastrointestinal parasite of worldwide distribution.
Proteases have a significant role in the life cycle of parasites and the pathogen-host relationship, being regarded as important virulence factors. In the parasitic nematode Hysterothylacium aduncum proteolytic activity was measured during in vitro development from third larval stage (L3) to mature adult, using DQ red casein as a fluorogenic substrate. Proteolytic activity was detected in all t...
متن کاملThe enzymes of glycogen and trehalose catabolism from Hysterothylacium aduncum (Nematoda: Anisakidae).
The activity of alpha-amylase, glucoamylase, maltase, trehalase, glycogen phosphorylase and trehalose phosphorylase was measured in extracts from larval and adult Hysterothylacium aduncum (Rudolphi, 1802), parasitic nematode of marine fish. The content of glycogen and trehalose in the worm's body was also determined. Both the hydrolytic and phosphorolytic paths of sugar decomposition are presen...
متن کاملHysterothylacium aduncum (Nematoda: Anisakidae) Infecting a Herbivorous Fish, Siganus fuscescens, off the Taiwanese Coast of the Northwest Pacific
Hsiu-Hui Shih and Ming-Shiou Jeng (2002) Hysterothylacium aduncum (Nematoda: Anisakidae) infecting a herbivorous fish, Siganus fuscescens, off the Taiwanese coast of the Northwest Pacific. Zoological Studies 41(2): 207-214. Hysterothylacium aduncum (Rudolphi, 1802) infecting a herbivorous fish, Siganus fuscescens, and 1 invertebrate zooplankton, a chaetognath, is reported off the Taiwanese coas...
متن کاملIn vitro cultivation of Hysterothylacium aduncum (Nematoda: Anisakidae) from 3rd-stage larvae to egg-laying adults.
This is the first demonstration of the in vitro development of the 3rd-stage larvae (L3) of Hysterothylacium aduncum to the adult. This was achieved in a semi-defined medium that is easy to prepare and to reproduce. The L3, collected from the peritoneal cavity of horse mackerel (Trachurus trachurus), were individually inoculated into RPMI-1640 medium +20% heat-inactivated fetal bovine serum (IF...
متن کاملCO2-fixing enzymes in Pseudomonas fluorescens.
Pseudomonas fluorescens grown on glucose or glutamate at 1 or 20 degrees C, or on acetate at 20 degrees C, as sole carbon sources, contained both pyruvate carboxylase and phosphoenolpyruvate carboxylase. Pyruvate carboxylase was insensitive to acetyl-coenzyme A and L-aspartate, and its level in cell-free extracts was markedly dependent on the carbon source for growth, the highest specific activ...
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ژورنال
عنوان ژورنال: Diseases of Aquatic Organisms
سال: 2009
ISSN: 0177-5103,1616-1580
DOI: 10.3354/dao02085