Consulta: subjectFacets:"Soft corals"
Registros recuperados: 7
Data/hora: 08/06/2024 17:21:40

Divergent Capacity of Scleractinian and Soft Corals to Assimilate and Transfer Diazotrophically Derived Nitrogen to the Reef Environment
Provedor de dados: 5
Autores: Pupier, Chloe A.; Bednarz, Vanessa N.; Grover, Renaud; Fine, Maoz; Maguer, Jean-francois; Ferrier-pages, Christine.
Corals are associated with dinitrogen (N-2)-fixing bacteria that potentially represent an additional nitrogen (N) source for the coral holobiont in oligotrophic reef environments. Nevertheless, the few studies investigating the assimilation of diazotrophically derived nitrogen (DDN) by tropical corals are limited to a single scleractinian species (i.e., Stylophora pistillata). The present study quantified DDN assimilation rates in four scleractinian and three soft coral species from the shallow waters of the oligotrophic Northern Red Sea using the N-15(2) tracer technique. All scleractinian species significantly stimulated N, fixation in the coral-surrounding seawater (and mucus) and assimilated DDN into their tissue. Interestingly, N-2 fixation was not...
Tipo: Text
Palavras-chave: Dinitrogen fixation; Diazotrophs; Scleractinian corals; Soft corals; Red Sea.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00512/62370/66644.pdf

Four new genera of soft corals (Coelenterata: Octocorallia), with notes on the classification of some established taxa
Provedor de dados: 16
Autores: Alderslade, P.
Four new genera, Rhytisma, Klyxum and Skamnarium (family Alcyoniidae) and Sansibia (family Xeniidae), are proposed to accommodate a number of species wrongly assigned to some established genera. A large number of the species concerned have been previously included in the genus Alcyonium, and remarks are made concerning the heterogenous nature of that genus. The reassignment of Parerythropodium hicksoni Utinomi, 1972, to Erythropodium, Alcyonium gracillimum Kükenthal, 1906, to Scleronephthya, and Clavularia hamra to Briareum is also discussed, and the existence of Funginus Tixier-Durivault, 1987, as a replacement name for Fungulus Tixier-Durivault, 1970, is highlighted.
Tipo: Article / Letter to the editor
Palavras-chave: Coelenterata; Cnidaria; Octocorallia; Alcyonacea; Alcyoniidae; Xeniidae; Soft corals; Rhytisma; Klyxum; Sansibia; Skamnarium; Fungulus; Funginus; 42.72.
Ano: 2000
URL: http://www.repository.naturalis.nl/record/216031

Synopsis of lichomolgid copepods (Poecilostomatoida) associated with soft corals (Alcyonacea) in the tropical Indo-Pacific
Provedor de dados: 16
Autores: Humes, A.G.
A synopsis of the 97 species of lichomolgid copepods known to be associated with tropical IndoPacific shallow-water alcyonaceans is given (Madagascar, New Caledonia, Moluccas, Philippines, and Enewetak Atoll). One new genus and 29 new species are included, distributed among the lichomolgid genera Acanthomolgus (2 new species), Alcyonomolgus (1), Colobomolgus (2), Critomolgus (3), Doridicola (5), Paradoridicola (7), Paramolgus (8), and Telestacicola (1). The alcyonacean hosts, numbering more than 100 species, include members of the genera Alcyonium, Anthelia, Capnella, Cespitularia, Cladiella, Dendronephthya, Heteroxenia, Lemnalia, Litophyton, Lobophytum, Nephthea, Paralemnalia, Parerythropodium, Sarcophyton, Sinularia, Siphonogorgia, Stereonephthya,...
Tipo: Article / Letter to the editor
Palavras-chave: Alcyonacea; Soft corals; Poecilostomatoida; Lichomolgidae; Copepoda; Associations; New species; Keys; Indo-Pacific; Madagascar; New Caledonia; Moluccas; Philippines; Enewetak Atoll.; 42.72.
Ano: 1990
URL: http://www.repository.naturalis.nl/record/317742

A review of the endemic southern African soft coral genus Pieterfaurea Verseveldt &amp; Bayer, 1988 (Octocorallia: Nidaliidae), with descriptions of three new species
Provedor de dados: 16
Autores: Williams, G.C.
The soft coral genus Pieterfaurea Verseveldt &amp; Bayer, 1988, endemic to the south and east coasts of South Africa, is reviewed. Five species are recognized as valid, including three new species described here as new. A dichotomous key and a table of comparative characters are included to aid in the differentiation of the five taxa.
Tipo: Article / Letter to the editor
Palavras-chave: Coelenterata; Anthozoa; Octocorallia; Nidaliidae; Pieterfaurea; Soft corals; Endemic genus; South Africa; Three new species; Southwestern Indian Ocean; 42.72.
Ano: 2000
URL: http://www.repository.naturalis.nl/record/215737

A study of the Xeniidae (Octocorallia, Alcyonacea) collected on the "Tyro" expedition to the Seychelles with a description of a new genus and species
Provedor de dados: 16
Autores: Janes, M.P.
An examination of xeniid octocorals was carried out on specimens held in the National Museum of Natural History, Naturalis, Leiden, Netherlands. Samples collected during the Tyro expedition to the Seychelles Islands in the Western Indian Ocean were identified. Six species belong to the genera Cespitularia, Heteroxenia, and Ovabunda are described; five of these are new records for this location. Three new species belonging to the genera Anthelia, Cespitularia and Ovabunda are illustrated. In addition, a new genus belonging to the family Xeniidae is introduced accompanied by scanning electron micrographs of its sclerites. Gross morphology and the ultra-structure of the sclerites indicate there are some similarities in this new genus with Anthelia. However,...
Tipo: Article / Letter to the editor
Palavras-chave: Cnidaria; Coelenterata; Octocorallia; Alcyonacea; Xeniidae; Soft corals; Anthelia; Xenia; Heteroxenia; Cespitularia; Ovabunda; Fasciclia; 42.79.
Ano: 2008
URL: http://www.repository.naturalis.nl/record/292117

A centuries old problem in nephtheid taxonomy approached using DNA data (Coelenterata: Alcyonacea)
Provedor de dados: 16
Autores: Ofwegen, L.P. van; Groenenberg, D.S.J.
The current centuries old classification of the family Nephtheidae is still mostly based on colony morphology. In this family the Indo-Pacifc genera Litophyton, Nephthea, Dendronephthya and Stereonephthya, and the Atlantic genus Neospongodes form a complex mix of closely related, poorly described species which cannot be recognized using only colony morphology. Attempts with the more modern approach of comparing skeleton composition (sclerites) have been only partly successful because of the extreme variation of sclerite forms present in these genera. The genus Chromonephthea Van Ofwegen, 2005, introduced for several species previously assigned to Dendronephthya, Nephthea and Stereonephthya, was established with sclerite morphology, but the true generic...
Tipo: Article / Letter to the editor
Palavras-chave: Soft corals; Octocorallia; Nephtheidae; Dendronephthya; Litophyton; Neospongodes; Nephthea; Stereonephthya; Taxonomy; Internal transcribed spacer I and II; Indo-Pacific; 42.72.
Ano: 2007
URL: http://www.repository.naturalis.nl/record/256122

An antimalarial cembranolide from Tanzania soft corals, Lobophytum crassum (von Marenzeller (1886) and L. rotundum (Tixier-Durivault (1957)
Provedor de dados: 20
Autores: Said, S.A.
Bioscreening guided fractionation of the extracts of soft corals Lobophytum crassum and L. rotundum using brine shrimp larvae cytotoxicity assay led to the isolation of a cembranolide diterpene (E,E,E)-6,10,14-trimethyl-3-methylene- 3a,4,7,8,11,12,15,15aoctahydrocylotetradeca [b]furan-2(3H)-one (1). This diterpene, identified as cembranolide compound 1, was found to be active against the multidrug-resistant and chloroquine-sensitive strains of Plasmodium falciparum malaria parasite in vitro. It also possessed cytotoxic properties.
Tipo: Journal Contribution
Palavras-chave: Lobophytum crassum; L. rotundum; Plasmodium falciparum; Antimalarial; Soft corals; Cytotoxic; Cembranolide Parasites Coral reefs Brine shrimp eggs Parasites http://aims.fao.org/aos/agrovoc/c_5574.
Ano: 2005
URL: http://hdl.handle.net/1834/1139