Results 171 to 180 of about 137,476 (242)

Dissection of a Snail (Helix pomatia)

2016
Availability: Roman snails (Helix pomatia) like places which are dark and damp. In spring and autumn, they are most active and easy to collect. When it’s dry or cold, they seal themselves up; they hibernate in winter and aestivate in summer. During these periods giant Ghana snail (Achatina sp.) can be purchased from zoos instead.
Péter Lőw, Kinga Molnár, György Kriska   +2 more
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Beta-Galactosidase of Helix pomatia

Nature, 1964
THE digestive juice of Helix pomatia contains a remarkable number of enzymes; many of them are carbohydrases, and they include an enzyme that hydrolyses lactose or β-methyl-galactoside1,2. This communication describes the properties and activities of the enzyme that hydrolyses o-nitrophenyl-β-D-galactopyranoside (ONPG).
R, GOT, A, MARNAY, P, JARRIGE, J, FONT
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Accelerated mitochondrial evolution and asymmetric fitness of hybrids contribute to the persistence of Helix thessalica in the Helix pomatia range

Molecular Ecology
Interbreeding and introgression between recently diverged species is common. However, the processes that prevent these species from merging where they co‐occur are not well understood.
Ondřej Korábek, B. Hausdorf
semanticscholar   +1 more source

β-d-mannosidase from Helix pomatia

Carbohydrate Research, 1983
beta-D-Mannosidase (beta-D-mannoside mannohydrolase EC 3.2.1.25) was purified 160-fold from crude gut-solution of Helix pomatia by three chromatographic steps and then gave a single protein band (mol. wt. 94,000) on SDS-gel electrophoresis, and three protein bands (of almost identical isoelectric points) on thin-layer isoelectric focusing.
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Sulfatases from Helix pomatia

1987
Publisher Summary This chapter discusses the sulfatases from Helix pomatia. Sulfate esters are common metabolites, and their characterization can be aided by the use of a homogeneous, or highly purified, sulfatase of broad specificity as a hydrolyzing agent. The highly specific mammalian arylsulfatases are not suitable.
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Copper and nutrition in Helix pomatia (L.)

Oecologia, 1979
1. In Helix pomatia the efficiency of assimilation of both food (lettuce) and copper is always high, even when the food has been artificially enriched with copper. In short-term feeding experiments with lettuce containing 1390 (±420)ppm copper about 97% of the metal ingested remains in the snail. 2.
Helmut, Moser, Wolfgang, Wieser
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Motor organization in pharynx of Helix pomatia

Journal of Neurophysiology, 1984
Identified motor neurons in the buccal ganglia of Helix pomatia and pharynx muscles innervated by them were studied with intracellular recording and cobalt staining. Retrograde cobalt staining via the buccal nerves indicated that neurons occupy relatively constant positions within the ganglia.
M, Peters, U, Altrup
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The axon reflex in Helix pomatia

Biosystems, 1969
Abstract During the course of a study on the electrical properties of a neural network of Helix pomatia we came upon a phenomenon which has been called an axon reflex. An efferent spike which is generated by a giant neuron is followed by an afferent spike through the same or a parallel brench.
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Adaptation in Helix pomatia neurons

Comparative Biochemistry and Physiology Part A: Physiology, 1987
Abstract 1. 1. Spike frequency adaptation has been studied on neurons of Helix pomatia subesophageal ganglia and interpreted by means of a behavioural model describing the phenomenon in neurons either silent or autorhythmic at rest. 2. 2. At low stimulating currents the initial discharge frequency F (0) is linearly related to the current ...
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