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Micropaleontology of Holothurian Sclerites
Micropaleontology, 1955A resume of the work that has been done on holothurian sclerites is presented, and their morphology is described. A new system of classification is proposed. The stratigraphic relationships and paleoecology of holothurian sclerites are also discussed.
Don L. Frizzell, Harriet Exline
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Contractions of holothurian muscles
Journal of Comparative Physiology ? A, 1980In response to quick stretch, contraction is elicited in longitudinal retractor muscles of five tested species of holothurians, and in the pharyngeal retractor ofCucumaria. The effects of amplitude of stretch and rate of stretch are additive. Rates of contraction and repetitiveness of response, and spontaneous rhythmicity (especially in muscles ...
C. Ladd Prosser, George O. Mackie
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The Biological Bulletin, 1909
1. In Leptosynapta inhœrens autotomy occurs regularly when unfavorable conditions of environment arise. Experiments with Thyone briareus did not show more than 35 per cent. of cases of autotomy, even under the most favorable circumstances for its occurrence.2. The mechanism involved in autotomy is quite different in the two genera.
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1. In Leptosynapta inhœrens autotomy occurs regularly when unfavorable conditions of environment arise. Experiments with Thyone briareus did not show more than 35 per cent. of cases of autotomy, even under the most favorable circumstances for its occurrence.2. The mechanism involved in autotomy is quite different in the two genera.
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Chemical Analysis of Holothurian Sclerites
Nature, 1958THE Holothuroidea differ from all other echinoderm classes in having a greatly reduced skeletal system. Typically, external plates are absent, while a peripharyngeal crown, anal plates, madreporite and spicules are usually present. Of these, the endoskeletal spicules (or ossicles), formed in superficial dermal layers, constitute the outstanding ...
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Ionic distribution and fluxes in holothurian tissues
Comparative Biochemistry and Physiology Part A: Physiology, 1974Abstract 1. 1. Ion content and distribution were determined in intestine and muscle of the holothurian Isostichopus badionotus. 2. 2. Intestinal cell potassium was 240 μ-equiv/g cell water proximally, 252 in mid gut and 121 distally, cell sodium was 246, 296 and 566 respectively; cell chloride was 223, 302 and 231. 3. 3.
I P, Zanders, F C, Herrera
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Myogenesis during holothurian intestinal regeneration
Cell and Tissue Research, 2004Echinoderms are well known as being able to regenerate body parts and thus provide excellent models for studying regenerative processes in adult organisms. We are interested in intestinal regeneration in the sea cucumber, Holothuria glaberrima, and focus here on the regeneration of intestinal muscle components.
Gisela, Murray +1 more
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The fine structure of the sperm of a holothurian and an ophiuroid
Journal of Morphology, 1976AbstractThe fine structure of the mature sperm of the holothurian, Cucumaria miniata, and the ophiuroid, Ophiopholis aculeata, is described with particular reference to their acrosomal and centriolar satellite complexes, and compared to the sperm of other echinoderms.In Cucumaria, the acrosome is in the form of a diffuse acrosomal vesicle.
A R, Fontaine, P, Lambert
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Muscle regeneration in the holothurian Stichopus japonicus
Roux's Archives of Developmental Biology, 1996The regeneration of longitudinal muscle bands (LMBs) in the sea cucumber Stichopus japonicus was studied using light and electron microscopic and immunocytochemical methods. Previous investigations of holothurian organs showed the presence of some cytoskeletal proteins which were specific for LMBs only.
I Y, Dolmatov +5 more
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The nutritional value of holothurians
Russian Journal of Marine Biology, 2015In the current decade, holothurians are becoming more popular among researchers due to the recently obtained data about the chemical structures and physiological activities of bioactive ingredients that are extracted from these marine invertebrates. In Southeast Asia, Japan, Korea, and China, the use of these animals as a valuable food product and an ...
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Observations on the Gregarines of Holothurians
Journal of Cell Science, 1893ABSTRACT Our first knowledge of the Gregarines of Holothurians dates back to KOLLIKER (1), who in 1858 described “vesicles for the most part stalked, with a distinct envelope, and granular, dark, fat-like contents, which invariably contained two germinal vesicle-like bodies, each with a large, finely granulated, germinal spot-like ...
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