Results 131 to 140 of about 5,802 (173)
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A checklist of the Medusae (Hydrozoa, Scyphozoa and Cubozoa) of Mexico
Zootaxa, 2003A list of 169 medusae species in 45 families recorded in Mexican waters is presented for the first time. 86 species (50.8%) were found in the Pacific Ocean, 75 species (44.3%) in the Gulf of Mexico, and 88 (52%) in the Mexican Caribbean Sea. Only 17 species (10%) were common to the three regions.
Segura-Puertas, Lourdes +2 more
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Cytotoxicity of the venom of Pelagia noctiluca forskål (Cnidaria: Scyphozoa)
Toxicon, 2002The activity of Pelagia noctiluca venom was never assessed on cultured cells; therefore, we have evaluated on V79 cells the cytotoxicity, genotoxicity and ATP depletion induced after treatment. Venom did not cause alteration on cell DNA, but showed remarkable cytotoxic properties. With the highest nematocyst concentration (150,000 nematocyst/ml) 74 and
MARIOTTINI, GIAN LUIGI +4 more
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The morphogenesis of ephyra in Coronatae (Cnidaria, Scyphozoa)
Marine Biology, 2007The morphogenesis of ephyrae of Atorella vanhoeffeni Bigelow, 1909 (Werner, 1967) and of Nausithoe maculata Jarms, 1990 during strobilation is described. We found differences in the developmental pattern of marginal structures and structural changes of longitudinal muscle tubes in particular.
Norman Eggers, Gerhard Jarms
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Cnidaria: Scyphozoa and Non-Colonial Hydrozoa
2017This chapter describes the taxonomy of scyphozoa and non-colonial hydrozoa. The Phylum Cnidaria assembles highly diverse primitive invertebrates that carry stinging cells called cnida. The presence of cnida, which are organized in specialized structures called cnidocysts (or nematocysts), makes the organisms of this group venomous to varying degrees ...
Astrid Fischer, Dhugal Lindsay
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Studies on Strobilation in the Scyphozoa
Journal of Biological Education, 1967(1967). Studies on Strobilation in the Scyphozoa. Journal of Biological Education: Vol. 1, No. 1, pp. 79-81.
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Heat shock proteins in Aurelia (cnidaria, scyphozoa)
Journal of Experimental Zoology, 1984AbstractHeat shock proteins (hsp) in Aurelia identified by one‐dimensional SDS‐PAGE are of sizes 93,83,70,68,45, and 39 kD, the most rapidly labeled being hsp 70 in all developmental stages. Labeled hsp in the polyp are found mostly in the epidermis; gastrodermal nuclei are also labeled.
R E, Black, L, Bloom
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1815) (Stauromedusae, Scyphozoa).
20062004 yılı; 21. cilt, 3-4’nolu sayıda basılan, Türkiye faunası için yeni kayıt olarak verilen bu tür Marmara Denizi’nde Heybeliada mevkiinde Demir (1952) tarafından Lucernaria campanulata olarak verilmiştir. Ayrıca Balkıs (1994) bu türü İstanbul Boğazı Altınkum mevkiinde Lucernaria cf. campanulata olarak rapor etmiştir.
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Nematocytes’ activation in Pelagia noctiluca (Cnidaria, Scyphozoa) oral arms
Journal of Comparative Physiology A, 2012Nematocytes' discharge is triggered to perform both defense and predation strategies in cnidarians and occurs under chemico-physical stimulation. In this study, different compounds such as amino acids and proteins (mucin, albumin, poly-L: -lysine, trypsin), sugars and N-acetylate sugars (N-acetyl neuraminic acid, N-acetyl galactosamine, sucrose ...
MORABITO, Rossana +2 more
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Ionic Currents of the Scyphozoa
1989Scyphozoans are members of the phylum Cnidaria and, according to Werner (1973), are the second most primitive extant class of this, the most primitive group of animals to possess a recognizable nervous system. Their nervous systems are, for the most part, composed almost entirely of diffuse two-dimensional plexuses of neurons, nerve nets (Passano, 1982)
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Comments on the Laboratory Culture of Scyphozoa
1975The culture of a number of major invertebrate types of animals has been accorded increasing attention in recent years. However, the culture of scyphozoans has received very little attention until recent years. The group, as a whole, is of little commercial value.
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