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Registros recuperados: 7
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Cnidom variation through distinct developmental stages in the sea anemone Aulactinia marplatensis (Zamponi, 1977) (Cnidaria: Actiniaria) Anais da ABC (AABC)
GARESE,AGUSTÍN; GONZÁLEZ-MUÑOZ,RICARDO; ACUÑA,FABIÁN H..
The cnidae are the exclusive diagnostic structures of phylum Cnidaria. The inventory of all cnidae types of a particular species is called the cnidom. The study of cnidae has been widely addressed in all classes of cnidarians. Particularly in the order Actiniaria (sea anemones), the study of the composition, size and distribution of cnidae is essential to the identification and description of species. In the present study, we examine the cnidom of the sea anemone Aulactinia marplatensis in three different stages of development throughout its life cycle. We found that the composition and abundance patterns are very similar between the adult and juvenile stages, although significant differences in the size capsules were found between both stages and in all...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cnidae; Cnidocysts; Larval cnidom; Life cycle; Sea anemones.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100613
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Behavioral and electroencephalographic analysis of seizures induced by intrahippocampal injection of granulitoxin, a neurotoxic peptide from the sea anemone Bunodosoma granulifera BJMBR
Santana,A.N.C.; Trindade-Filho,E.M.; Cunha,R.B.; Sousa,M.V.; Cavalheiro,E.A.; Carvalho,K.M..
In this study, the behavioral and electroencephalographic (EEG) analysis of seizures induced by the intrahippocampal injection in rats of granulitoxin, a neurotoxic peptide from the sea anemone Bunodosoma granulifera, was determined. The first alterations occurred during microinjection of granulitoxin (8 µg) into the dorsal hippocampus and consisted of seizure activity that began in the hippocampus and spread rapidly to the occipital cortex. This activity lasted 20-30 s, and during this period the rats presented immobility. During the first 40-50 min after its administration, three to four other similar short EEG seizure periods occurred and the rats presented the following behavioral alterations: akinesia, facial automatisms, head tremor, salivation,...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Bunodosoma granulifera; Granulitoxin; Sea anemones; Toxic peptides; Seizure; Electroencephalographic assay.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000600016
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Partial sequence and toxic effects of granulitoxin, a neurotoxic peptide from the sea anemone Bunodosoma granulifera BJMBR
Santana,A.N.C.; Leite,A.B.; França,M.S.F.; França,L.; Vale,O.C.; Cunha,R.B.; Ricart,C.A.O.; Sousa,M.V.; Carvalho,K.M..
A neurotoxic peptide, granulitoxin (GRX), was isolated from the sea anemone Bunodosoma granulifera. The N-terminal amino acid sequence of GRX is AKTGILDSDGPTVAGNSLSGT and its molecular mass is 4958 Da by electrospray mass spectrometry. This sequence presents a partial degree of homology with other toxins from sea anemones such as Bunodosoma caissarum, Anthopleura fuscoviridis and Anemonia sulcata. However, important differences were found: the first six amino acids of the sequence are different, Arg-14 was replaced by Ala and no cysteine residues were present in the partial sequence, while two cysteine residues were present in the first 21 amino acids of other toxins described above. Purified GRX injected ip (800 µg/kg) into mice produced severe neurotoxic...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Bunodosoma granulifera; Sea anemones; Toxic peptides.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998001000015
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Actiniaria from Ria de Arosa, Galicia, northwestern Spain, in the Netherlands Centre for Biodiversity Naturalis, Leiden Naturalis
Hartog, J.C. den; Ates, R.M.L..
Twentysix species of sea anemones (Actiniaria) collected in Galicia, northwestern Spain are present in the collection of the Netherlands Centre for Biodiversity Naturalis. They are listed and discussed. The cnidom of seventeen species is surveyed. Diadumene cincta is not a recent immigrant in western Europe. Sagartia luciae is (re)assigned to the genus Diadumene. The presence of Sagartia troglodytes in the Mediterranean is doubtful at best.
Tipo: Article / Letter to the editor Palavras-chave: Distribution; New records; Sea anemones; 42.79.
Ano: 2011 URL: http://www.repository.naturalis.nl/record/376599
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On the name of the hermit-crab anemone, Adamsia palliata (O.F. Müller, 1776) Naturalis
Cornelius, P.F.S.; Ates, R.M.L..
The long-used scientific name of the common European sea-enemone Adamsia palliata should be retained in use and an unfamiliar name used in some recent synoptic works should be abandoned. We show this to be so under the Code of Zoological Nomenclature and also on pragmatic grounds.
Tipo: Article / Letter to the editor Palavras-chave: Sea anemones; European; Adamsia palliata; 42.79.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/220296
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Locomotory behaviour and functional morphology of Nematostella vectensis (Anthozoa: Actiniaria: Edwardsiidae): a contribution to a comparative study of burrowing behaviour in athenarian sea anemones Naturalis
Williams, R.B..
The locomotory behaviour and functional morphology of English populations of a small (<2 cm long), burrowing athenarian sea anemone, Nematostella vectensis Stephenson, 1935 (= N. pellucida Crowell, 1946), which lives in soft mud in salt marshes and creeks, are described. Objectives were to ascertain the specific stimuli and environmental conditions determining when and how locomotion is employed, and to assess survival values. Experimentation and anatomical examination revealed how anemones move, and their functional morphology was interpreted in a physiological context. Finally, locomotion, morphology and habitat were compared for several athenarian anemones, to ascertain what correlations there are, if any. Essential environmental conditions for N....
Tipo: Article / Letter to the editor Palavras-chave: Behaviour; Burrowing; Climbing; Creeping; England; Functional morphology; Locomotion; Musculature; Nematostella vectensis; Rugae; Sea anemones; 42.79.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/220581
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Reinterpretation of some tentacular structures in actinodendronid and thalassianthid sea anemones (Cnidaria: Actiniaria) Naturalis
Ardelean, A..
The oral disc of an actinodendronid sea anemone is drawn out into a variable number of highly branched tentacular structures that make the anemone resemble a tree. These tentacular structures have been considered either lobes or branched tentacles. The term lobe has been applied to various structures of the oral disc in sea anemones; I distinguish between temporary lobes, permanent marginal lobes, and permanent tentacular lobes. I use the number of mesenterial pairs involved in a tentacular structure as evidence that tentacular structures in Actinodendronidae should be considered tentacles, not lobes. According to this interpretation, actinodendronids have only one tentacle communicating with each intermesenterial space, both endocoels and exocoels. The...
Tipo: Article / Letter to the editor Palavras-chave: Branched tentacles; Lobes; Tentacles; Sea anemones; Terminology; Actinodendronidae; Actinodendron; Thalassianthidae; Heterodactyla; Thalassianthus; 42.79.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/220291
Registros recuperados: 7
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