Results 161 to 170 of about 16,899 (204)
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Biochemical and Biophysical Research Communications, 2012
For more than 150 years, echinoderm eggs have served as overly favored experimental model systems in which to study fertilization. Sea urchin and starfish belong to the same phylum and thus share many similarities in their fertilization patterns.
Luigia, Santella +2 more
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For more than 150 years, echinoderm eggs have served as overly favored experimental model systems in which to study fertilization. Sea urchin and starfish belong to the same phylum and thus share many similarities in their fertilization patterns.
Luigia, Santella +2 more
openaire +2 more sources
Proceedings of the Royal Society of London. Series B. Biological Sciences, 1972
Abstract The pioneering work of Bergmann and his colleagues demonstrated that marine invertebrates in many cases contain complex sterol mixtures consisting of C27, C28 and C29 sterols of varying degrees of unsaturation (Bergmann 1949, 1962). The sterols found in the phylum Echinodermata have proved of particular interest not only from
L J, Goad, I, Rubinstein, A G, Smith
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Abstract The pioneering work of Bergmann and his colleagues demonstrated that marine invertebrates in many cases contain complex sterol mixtures consisting of C27, C28 and C29 sterols of varying degrees of unsaturation (Bergmann 1949, 1962). The sterols found in the phylum Echinodermata have proved of particular interest not only from
L J, Goad, I, Rubinstein, A G, Smith
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Origin and Early Evolution of Echinoderms [PDF]
Annual Review of Earth and Planetary SciencesEchinoderms are a major group (phylum) of invertebrate animals with a rich fossil record stretching back to the Cambrian period, approximately 518 million years ago.
Imran A. Rahman, Samuel Zamora
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2010
A survey for immune genes in the genome for the purple sea urchin has shown that the immune system is complex and sophisticated. By inference, immune responses of all echinoderms maybe similar. The immune system is mediated by several types of coelomocytes that are also useful as sensors of environmental stresses.
Smith, L. Courtney +17 more
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A survey for immune genes in the genome for the purple sea urchin has shown that the immune system is complex and sophisticated. By inference, immune responses of all echinoderms maybe similar. The immune system is mediated by several types of coelomocytes that are also useful as sensors of environmental stresses.
Smith, L. Courtney +17 more
openaire +3 more sources
Regeneration in echinoderm larvae
Microscopy Research and Technique, 2001AbstractThe 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 ...
Charles D. Amsler +2 more
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Cryopreservation of echinoderm sperm
Canadian Journal of Zoology, 1973A 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
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A review of echinoderm oogenesis
Journal of Electron Microscopy Technique, 1990AbstractThis 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, 1974ONE 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.
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Comprehensive Lipid Profile of Eight Echinoderm Species by RPLC–Triple TOF-MS/MS
Journal of Agricultural and Food Chemistry, 2023Changhu Xue, Peixu Cong
exaly
Transphosphorylation in echinoderms
Journal of Cellular and Comparative Physiology, 1954openaire +2 more sources