Results 221 to 230 of about 1,268,557 (276)
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Glycolipids of marine invertebrates
Comparative Biochemistry and Physiology, 1970Abstract 1. 1. Contents of monosaccharides in the lipid extracts of fifty species of marine invetebrates were determined. 2. 2. Glycolipids were found in the invertebrates of all phyla; Spongia and Echinodermata have the highest and Coeleterrata and Arthropoda have the lowest glycolipid contents. 3. 3.
V E, Vaskovsky +4 more
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Dominance Hierarchies in Marine Invertebrates
The Biological Bulletin, 2021AbstractDominance hierarchies have been well studied in myriad terrestrial animals, but surprisingly little is known about hierarchies in marine invertebrates; examples are limited to a few species of decapod crustaceans and cephalopods. Is the marine environment less conducive to the establishment of dominance hierarchy structures, or does this just ...
Joshua P, Lord +12 more
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Endogenous opioids in marine invertebrates
Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1985A study of the presence of opioids in invertebrates was carried out on 11 species of marine organisms, ranging from sponges to tunicates. Delipidized acid-acetone extracts from whole organisms or dissected organs were assayed by receptor binding assays and radioimmuno assays. The extracts from all species tested were found to contain substances capable
PICCOLI, RENATA +4 more
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Local Adaptation in Marine Invertebrates
Annual Review of Marine Science, 2011Local adaptation in the sea was regarded historically as a rare phenomenon that was limited to a handful of species with exceptionally low dispersal potential. However, a growing body of experimental studies indicates that adaptive differentiation occurs in numerous marine invertebrates in response to selection imposed by strong gradients (and more ...
Eric, Sanford, Morgan W, Kelly
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Methanotrophic symbioses in marine invertebrates
Environmental Microbiology Reports, 2009Summary Symbioses between marine animals and aerobic methane‐oxidizing bacteria are found at hydrothermal vents and cold seeps in the deep sea where reduced, methane‐rich fluids mix with the surrounding oxidized seawater.
Petersen, J., Dubilier, N.
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Polyspermy prevention in marine invertebrates
Microscopy Research and Technique, 2003AbstractIn marine invertebrates, as in most other organisms, normal development requires that only one sperm nucleus joins with the egg nucleus at fertilization. The principal mechanisms employed are (1) prevention of sperm‐egg plasma membrane fusion and (2) modifications of the egg extracellular coat to prevent sperm binding and/or penetration.
Meredith C, Gould, Jose Luis, Stephano
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Opine Dehydrogenases in Marine Invertebrates
Biochemical Genetics, 2013It is well known today that opine production anaerobic pathways are analogs to the classical glycolytic pathway (lactate production pathway). These pathways, catalyzed by a group of enzymes called opine dehydrogenases (OpDHs), ensure continuous flux of glycolysis and a constant supply of ATP by maintaining the NADH/NAD(+) ratio during exercise and ...
Matija, Harcet +2 more
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Endocrine mechanisms in marine invertebrates
Life Sciences, 1974Abstract The objective of this minireview is to summarize the recent advances made in the area of marine invertebrate endocrinology, with special emphasis on the literature published in 1972 and 1973. Most of the pertinent publications in these two years have dealt with crustaceans.
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Endemism and Evolution in Hawaiian Marine Invertebrates
Trends in Ecology & Evolution, 1987Endemism in Hawaiian marine invertebrates is strikingly lower than that in Hawaiian terrestrial organisms. Although marine speciation has been widespread, there have been no major radiations or species swarms comparable with those commonly reported for terrestrial animals and plants; the marine fauna of the Hawaiian islands is differentiated from its ...
E, Alison Kay, S R, Palumbi
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Development of Marine Invertebrates
2020Marine invertebrates are used in developmental, cell, and evolutionary biology, and some critical biological phenomena have been found using these organisms. For example, one of the most important cell-cycle regulator proteins, cyclin, was found in a sea urchin (Evans et al., Cell 33:389–396, 1983); the cell-fate determinant, macho-1, was first ...
Shunsuke Yaguchi +2 more
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