Bioenergetics in two pulmonate snails, Helisoma and Physa
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چکیده
منابع مشابه
Chiral Speciation in Terrestrial Pulmonate Snails
On the basis of data in the literature, the percentages of dextral versus sinistral species of snails have been calculated for western Europe, Turkey, North America (north of Mexico), and Japan. When the family of Clausiliidae is represented, about a quarter of all snail species may be sinistral, whereas less than one per cent of the species may be sinistral where that family does not occur. Th...
متن کاملEffects of Individual and Combined Pesticide Commercial Formulations Exposure to Egestion and Movement of Common Freshwater Snails, Physa acuta and Helisoma anceps
—Pesticides are detected in streams at concentrations that might have adverse effects on aquatic organisms. These agrochemicals typically occur in streams as combinations, yet research has focused on the effects of individual pesticides. We studied the effects of commercial formulations of atrazine, metolachlor, carbaryl, and chlorothalonil on aquatic gastropods Physa acuta and Helisoma anceps ...
متن کاملThe Heritability of Shell Morphometrics in the Freshwater Pulmonate Gastropod Physa
The cosmopolitan freshwater pulmonate snail Physa acuta hybridizes readily with Physa carolinae in the laboratory, although their F1 progeny are sterile. The two species differ qualitatively in shell shape, the former bearing a more globose shell and the latter more fusiform. We performed a hybridization experiment, measuring a set of 14 traditional (linear) and landmark-based shell morphologic...
متن کاملTHIN-LAYER CHROMATOGRAPHIC ANALYSIS OF HYDROPHILIC VITAMINS IN STANDARDS AND FROM Helisoma trivolvis SNAILS
Separations of the hydrophilic vitamins thiamine (B1), riboflavin (B2), niacin (B3), pyridoxine (B6), cobalamin (B12), ascorbic acid (C), and folic acid have been compared using 14 mobile phases and commercially available, precoated silica gel and chemically bonded silica gel thin-layer chromatography (TLC) and high-performance thin-layer chromatography (HPTLC) plates. The best separations of i...
متن کاملApical sensory neurones mediate developmental retardation induced by conspecific environmental stimuli in freshwater pulmonate snails.
Freshwater pond snails Helisoma trivolvis and Lymnaea stagnalis undergo larval development and metamorphosis inside egg capsules. We report that their development is permanently under slight tonic inhibitory influence of the anterior sensory monoaminergic neurones, which are the remnants of the apical sensory organ. Conspecific juvenile snails, when reared under conditions of starvation and cro...
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ژورنال
عنوان ژورنال: Comparative Biochemistry and Physiology Part A: Physiology
سال: 1975
ISSN: 0300-9629
DOI: 10.1016/0300-9629(75)90066-3