Results 261 to 270 of about 1,273,785 (287)
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Journal of Experimental Biology, 1945
ABSTRACT The action of a number of drugs which affect the neuromuscular systems of vertebrates has been examined on the sea anemone, Calliactis parasitica. In contrast to their action in vertebrates, no drugs directly cause contraction in the muscles of the anemone.
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ABSTRACT The action of a number of drugs which affect the neuromuscular systems of vertebrates has been examined on the sea anemone, Calliactis parasitica. In contrast to their action in vertebrates, no drugs directly cause contraction in the muscles of the anemone.
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A Respiratory Rhythm in Sea Anemones
Journal of Experimental Biology, 1977ABSTRACT Continuous recording of the O2 content of sea water containing an Actinia equina or a Metridium senile has revealed the occurrence of periodic deflexions on most of the records obtained. The deflexions are probably caused by the release of coelenteric fluid via the mouth. The average period of the rhythm varied from 24 to 43 min
Veronica J. Pickthall +2 more
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Unusual arsenic speciation in sea anemones
Chemosphere, 2008Nine species of sea anemones (Anthopleura asiatica, Actinia equina, Actinodendron arboreum, Phymanthus loligo, Entacmaea actinostoloides, Stichodactyla gigantea, S. haddoni, S. mertensii and Metridium senile) contained arsenic in the range of 1.6-7.0microg As g(-1) (wet mass basis). Irrespective of the species, water-soluble arsenic compounds accounted
Tran Dang Ninh +2 more
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Anthopleurine: A Sea Anemone Alarm Pheromone
Science, 1975The sea anemone Anthopleura elegantissima responds with characteristic contraction to a pheromone released by wounded conspecifics. The alarm pheromone was isolated by ion-exchange chromatography and identified by chemical and spectroscopic methods as the quaternary ammonium ion (3-carboxy-2,3-dihydroxy-
Younus M. Sheikh, Nathan R. Howe
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The Ups and Downs of a Sea Anemone
Science, 2004Bilateral symmetry is thought to have emerged after the evolutionary split between cnidarians and bilaterians. In his Perspective, Holland discusses whether bilateral symmetry has an earlier evolutionary origin. New gene expression analyses in the starlet sea anemone suggest that bilateral symmetry may be homologous between sea anemones and ...
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Journal of the Marine Biological Association of the United Kingdom, 1925
It is a curious fact that the majority of the British anemones had been discovered by 1860, and that half of them, as listed at that date, had been established during a burst of energy on the part of Gosse and his collecting friends. Gosse added 28 species to the British Fauna himself.
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It is a curious fact that the majority of the British anemones had been discovered by 1860, and that half of them, as listed at that date, had been established during a burst of energy on the part of Gosse and his collecting friends. Gosse added 28 species to the British Fauna himself.
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Isozymes of tropical sea anemones
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1979Abstract 1. 1. The isozyme patterns of malate dehydrogenase (MDH, E.C. 1.1.1.37), lactate dehydrogenase (LDH, E.C. 1.1.1.27), glucose-6-phosphate dehydrogenase (G6PD, E.C. 1.1.1.49) and superoxide dismutase (SOD, E.C. 1.15.1.1) of four tropical sea anemones, Zoanthus sociatus, Palythoa variabilis, P.
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1985
Publisher Summary The absence of cytological studies on sea anemones during the first 60 years of the twentieth century led biologists to interpret their observations by reference to those of the nineteenth century or to those known in the most studied cnidarian, Hydra.
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Publisher Summary The absence of cytological studies on sea anemones during the first 60 years of the twentieth century led biologists to interpret their observations by reference to those of the nineteenth century or to those known in the most studied cnidarian, Hydra.
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