Results 191 to 200 of about 9,888 (235)

Regeneration in echinoderm larvae

Microscopy Research and Technique, 2001
AbstractThe ability of echinoderms to regenerate missing body parts has been a subject of interest to scientists for many years. Asexual reproduction (by fission or budding) is a phenomenon that involves regeneration of missing structures. Although asexual reproduction and regeneration have been the focus of many studies in adult echinoderms, there ...
M C, Vickery, M S, Vickery, C D, Amsler, J B, McClintock   +3 more
openaire   +2 more sources

Cryopreservation of echinoderm sperm

Canadian Journal of Zoology, 1973
A simple method for the cryopreservation of sea urchin, sand dollar, and starfish sperm is described. Using dimethyl sulfoxide (DMSO) as the protective agent, sperm were stored up to 30 days at — 196 °C. These preparations all retained some motility after thawing.
R S, Dunn, J, McLachlan
openaire   +2 more sources

A review of echinoderm oogenesis

Journal of Electron Microscopy Technique, 1990
AbstractThis review of the anatomical, histological, biochemical, and molecular biological literature on echinoderm oogenesis includes the entire developmental history of oocytes; from their inception to the time they become ova. This is done from a comparative perspective, with reference to members of the five extant echinoderm classes; crinoids ...
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Pentamerism and the ancestral echinoderm

Nature, 1974
ONE of the difficulties in an account of the origin of the echinoderms is their five-fold radial symmetry. Nichols1 has proposed a hypothetical ancestral echinoderm derived from a lophophorate ancestor. Sipunculoids have a recurved gut and a hydraulically operated tentacular system using a special compartment of the coelom.
openaire   +2 more sources

Morphology and Chemical Messenger Regulation of Echinoderm Muscles

Biology, 2023
Muyan Chen, Chen Muyan, Huachen Liu
exaly  

Bioresources from Echinoderms

2005
More than 6,500 species have been recorded in the phylum Echinodermata. A variety of biologically active substances have been isolated from the echinoderm species: saponins, glycolipids, carotenoids, porphyrins, naphthoquinones, venoms and others.
openaire   +2 more sources

Comprehensive Lipid Profile of Eight Echinoderm Species by RPLC–Triple TOF-MS/MS

Journal of Agricultural and Food Chemistry, 2023
, Changhu Xue, Xiaowei Fan
exaly  

Transphosphorylation in echinoderms

Journal of Cellular and Comparative Physiology, 1954
openaire   +2 more sources

The echinoderms of the turkish seas

1995
The echinoderms off the Turkish coasts have been studied between 1987 and 1993 with special emphasis on the Aegean Sea, and 47 species have been identified. One of these species, Brissopsis mediterranea, is recorded for the first time for the Aegean Sea.
Ozaydin, O, Katagan, T, Unsal, S
openaire   +2 more sources

ECHINODERMS

1982
JACK COHEN, BRENDAN MASSEY
openaire   +1 more source