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	Provedor de dados Naturalis (2) Autor Robson, E.A. (2) Warren, A. (1) Palavra-chave 42.72 (1) 42.79 (1) Aggressive behaviour (1) Anthozoa (1) Bryozoa (1) Ciliophora (1) Cnidogenesis (1) Corallimorpharia (1) Corynactis (1) Cristatella (1) Epizoite (1) Hydra (1) Kerona (1) Nematocytes (1) Scanning Electron Microscopy. (1) Symbiotic association (1) Mais... Tipo do documento Article / Letter to the editor (2) Ano 2004 (1) 1998 (1) País Netherlands (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última The identity and occurrence of Kerona pediculus (Ciliophora: Hypotrichida), a well-known epizoite of Hydra vulgaris (Cnidaria: Hydrozoa) Naturalis Warren, A.; Robson, E.A.. Epizoic Kerona pediculus have been found on Hydra vulgaris and on Cristatella mucedo (Bryozoa) in the same habitat. On the basis of morphological characters (using Nomarski and Scanning Electron Microscopy) specimens from the two hosts are indistinguishable. Details revealed by SEM agree with previous results from silver staining, confirming the identity of K. pediculus. The taxonomic status of this species is briefly summarised. Host recognition, the inhibition of nematocyst discharge, and the possible role of host growth-promoting substances are not yet understood. Tipo: Article / Letter to the editor Palavras-chave: Hydra; Kerona; Cristatella; Ciliophora; Bryozoa; Epizoite; Symbiotic association; Scanning Electron Microscopy.; 42.72. Ano: 1998 URL: http://www.repository.naturalis.nl/record/317635 Cnidogenesis in the jewel anemone Corynactis californica (Carlgren, 1936) and C. viridis (Allman, 1846) (Anthozoa: Corallimorpharia) Naturalis Robson, E.A.. Precursor stages of large holotrichs in the mesenterial filaments of Corynactis californica and C.viridis have been visualised by simple methods using stained whole-mount preparations. Samples were taken from mesenterial filaments emitted during aggressive behaviour (which is reported for the first time in C. viridis). Results suggest that in natural conditions localised stimuli may provoke discharge along short stretches of mesenterial filament, followed by localised recruitment within these depleted areas. Tipo: Article / Letter to the editor Palavras-chave: Anthozoa; Corallimorpharia; Corynactis; Cnidogenesis; Nematocytes; Aggressive behaviour; 42.79. Ano: 2004 URL: http://www.repository.naturalis.nl/record/214453 Registros recuperados: 2 Primeira ... 1 ... Última

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