Ganglia removal and photically driven activity in the earthworm (L. terrestris)
نویسندگان
چکیده
منابع مشابه
Sodium and chloride transport in the isolated intestine of the earthworm, Lumbricus terrestris (L.).
1. Measurements of electrical potential difference (PD), short-circuit current (SCC) and unidirectional fluxes of sodium and chloride were made across portions of the intestine. Based on the results, the intestine can be divided into at least four physiologically distinct regions. 2. These four physiological regions, designated from anterior to posterior as R I-II, R III A, R III B and R IV, do...
متن کاملCeramide glycanase from the earthworm, Lumbricus terrestris.
Ceramide glycanase (CGase) is an enzyme that cleaves the linkage between the sugar chain and the ceramide. To make this enzyme readily available, we have developed a simple method for preparing it from the earthworm, Lumbricus terrestris. The method involves Bio-Gel A-0.5m, octyl-Sepharose and p-aminophenylthiogalactoside-agarose column chromatography. By gel filtration, the molecular mass of e...
متن کاملFacilitation in the rapid response of the earthworm, Lumbricus terrestris L.
In previous papers (Roberts, 1962 a, b) the earthworm's rapid response, mediated through the giant-fibre reflex, was described and analysed. In the course of these experiments it was noticed that in the early stages of repetitive stimulation successive responses do not remain the same size but show a marked tendency to increase in magnitude. This staircase effect is particularly pronounced in f...
متن کاملChanges in the fatty acid profiles through the digestive tract of the earthworm Lumbricus terrestris L
The gut of many soil arthropods contains a complex and mutualistic microbial community that usually assists the host with digestion. The same is probably true for earthworms, but the nature and function of the microbiota inhabiting their gut are virtually unknown. In this paper, we studied the microbial community in the gut content of the earthworm Lumbricus terrestris L. and in the bulk soil b...
متن کاملStretch-sensitive neural units in the body wall of the earthworm, Lumbricus terrestris L.
1. Sensory neural units responding to sinusoidal stretching of the body wall were studied in the earthworm, Lumbricus terrestris L. 2. A phasic stretch-sensitive unit found in segmental nerve I responded optimally to stretching at frequencies of 4-6/min. 3. The number of spikes per stretch and the spike frequency in the unit were directly related to the amplitude of the applied stretch within a...
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ژورنال
عنوان ژورنال: Psychonomic Science
سال: 1965
ISSN: 0033-3131,2197-9952
DOI: 10.3758/bf03343087