SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Retracing the path of planar cell polarity

Mai, Tepoerau; Toullec, Jordan; Van Wynsberge, Simon; Besson, Marc; Soulet, Stephanie; Petek, Sylvain; Aliotti, Emmanuelle; Ekins, Merrick; Hall, Kathryn; Erpenbeck, Dirk; Lecchini, David; Beniddir, Mehdi A.; Saulnier, Denis; Debitus, Cecile.

Marine natural products isolated from the sponge Fascaplysinopsis cf reticulata, in French Polynesia, were investigated as an alternative to antibiotics to control pathogens in aquaculture. The overuse of antibiotics in aquaculture is largely considered to be an environmental pollution, because it supports the transfer of antibiotic resistance genes within the aquatic environment. One environmentally friendly alternative to antibiotics is the use of quorum sensing inhibitors (QSIs). Quorum sensing (QS) is a regulatory mechanism in bacteria which control virulence factors through the secretion of autoinducers (AIs), such as acyl-homoserine lactone (AHL) in gram-negative bacteria. Vibrio harveyi QS is controlled through three parallel pathways: HAI-1, AI-2,...

Tipo: Text

Palavras-chave: Porifera; Marine natural products; Quorum sensing inhibitors; Antibiotic; Fascaplysinopsis cf reticulata.

Ano: 2019

URL: https://archimer.ifremer.fr/doc/00598/71052/69366.pdf

Schenkelaars, Quentin; Fierro-constain, Laura; Renard, Emmanuelle; Borchiellini, Carole.

Background: The Planar Cell Polarity pathway (PCP) has been described as the main feature involved in patterning cell orientation in bilaterian tissues. Recently, a similar phenomenon was revealed in cnidarians, in which the inhibition of this pathway results in the absence of cilia orientation in larvae, consequently proving the functional conservation of PCP signaling between Cnidaria and Bilateria. Nevertheless, despite the growing accumulation of databases concerning basal lineages of metazoans, very few information concerning the existence of PCP components have been gathered outside of Bilateria and Cnidaria. Thus, the origin of this module or its prevalence in early emerging metazoans has yet to be elucidated. Results: The present study addresses...

Tipo: Text

Palavras-chave: Planar cell polarity; Van Gogh; Multigene families; Porifera; Placozoa; Ctenophora; Wnt signaling; Metazoan phylogeny.

Ano: 2016

URL: https://archimer.ifremer.fr/doc/00371/48250/48685.pdf

Using genetics to inform restoration and predict resilience in declining populations of a keystone marine sponge

Griffiths, Sarah M.; Taylor-cox, Evelyn D.; Behringer, Donald C.; Butler, Mark J.; Preziosi, Richard F..

Genetic tools can have a key role in informing conservation management of declining populations. Genetic diversity is an important determinant of population fitness and resilience, and can require careful management to ensure sufficient variation is present. In addition, population genetics data reveal patterns of connectivity and gene flow between locations, enabling mangers to predict recovery and resilience, identify areas of local adaptation, and generate restoration plans. Here, we demonstrate a conservation genetics approach to inform restoration and management of the loggerhead sponge (Spheciospongia vesparium) in the Florida Keys, USA. This species is a dominant, habitat-forming component of marine ecosystems in the Caribbean region, but in Florida...

Tipo: Text

Palavras-chave: Caribbean; Conservation; Florida Keys; Loggerhead sponge; Porifera; Spheciospongia vesparium.

Ano: 2020

URL: https://archimer.ifremer.fr/doc/00646/75824/76794.pdf

When is an aster not an aster? A new deep-sea Discorhabdella (Demospongiae, Poecilosclerida) with asters, from the Mozambique Channel

Vacelet, Jean; Cardenas, Paco.

Discorhabdella pseudaster n. sp. is an incrusting sponge from the upper bathyal zone of the 'Banc du Geyser', north of Madagascar, Mozambique Channel This new species is described only from a single specimen but it is remarkable by the presence of spicules similar to euasters, a type of microsclere unknown in Poecilosclerida. These spicules are in fact a new example of homoplasy, being derivatives of the typical Discorhabdella pseudoastrose acanthostyles, which are here reduced to the aster-like tyles. The isochelae with a large lamella on the shaft are also quite unique in Poeciloclerida.

Tipo: Text

Palavras-chave: Porifera; New species; Madagascar; Bathyal; Homoplasy.

Ano: 2018

URL: https://archimer.ifremer.fr/doc/00688/79995/82965.pdf

Surface Microornamentation of Demosponge Sterraster Spicules, Phylogenetic and Paleontological Implications

Molecular and morphological data from Thoosidae in favour of the creation of a new suborder of Tetractinellida

Cárdenas, Paco.

Siliceous spicules in demosponges exist in a variety of shapes, some of which look like minute spheres of glass. They are called “sterrasters” when they belong to the Geodiidae family (Tetractinellida order) and “selenasters” when they belong to the Placospongiidae family (Clionaida order). Today, the Geodiidae represent a highly diverse sponge family with more than 340 species, occurring in shallow to deep waters worldwide, except for the Antarctic. The molecular phylogeny of Geodiidae is currently difficult to interpret because we are lacking morphological characters to support most of its clades. To fill this knowledge gap, the surface microornamentations of sterrasters were compared in different genera. Observations with scanning electron microscopy...

Tipo: Text

Palavras-chave: Porifera; Systematics; Geodia; Placospongia; Rhaxella; Microfossils; Sterrasters; Selenasters.

Ano: 2020

URL: https://archimer.ifremer.fr/doc/00688/80002/82956.pdf

Luis Carballo, Jose; Bautista-guerrero, Eric; Cardenas, Paco; Cruz-barraza, Jose Antonio; Aguilar-camacho, Jose Maria.

The Thoosidae (Porifera, Demospongiae, Tetractinellida) currently includes the genera Thoosa, Alectona, and Delectona. To this date, molecular data are only available for Alectona. In this study, the phylogenetic affinities of the genera Thoosa and Alectona have been investigated with the species T. mismalolli, T. calpulli, and T. purpurea from the Mexican Pacific using morphology and three molecular loci: the mitochondrial cytochrome oxidase subunit 1 (CO1 mtDNA), 28S rRNA (fragment D2), and 18S rRNA. Morphology and embryology showed that these genera are quite different from the rest of the tetractinellids because larvae of Alectona and Thoosa have unique features in sponges, such as the presence of monaxonic discs in Thoosa and tetraxonic discs in...

Tipo: Text

Palavras-chave: Astrophorina; Molecular markers; Porifera; Systematics; Synapomorphy; Thoosidae.

Ano: 2018

URL: https://archimer.ifremer.fr/doc/00688/79996/83503.pdf

Lithistid sponges from submarine caves in the Mediterranean: taxonomy and affinities

Pisera, Andrzej; Vacelet, Jean.

Several lithistid sponges are described from Mediterranean caves occurring in the northwestern and Adriatic basins. In the Corallistidae, Neoschrommeniella bowerbanki and Neophrissospongia nolitangere are recorded for the first time from the Mediterranean, whereas Neophrissospongia radicle n. sp. and Neophrissospongia endoumensis n. sp. are described as new. In the Theonellidae, the common sponge previously identified as Discodermia polydiscus is described as Discodermia polymorpha n. sp. Fossil specimens from the 3PP cave are tentatively attributed to Neoschrammeniella bowerbanki. The distribution and affinities of this lithistid fauna are discussed.

Tipo: Text

Palavras-chave: Porifera; Lithistids; New species; Mediterranean Sea; Submarine caves; Biogeographic affinities; Fossilized sponges.

Ano: 2011

URL: https://archimer.ifremer.fr/doc/00372/48304/48429.pdf

Sanitation with sponge and plunger: western Atlantic slit-wormsnails (Mollusca : Caenogastropoda : Siliquariidae)

Exploring cultivable Bacteria from the prokaryotic community associated with the carnivorous sponge Asbestopluma hypogea

Bieler, R.

Siliquariid Tenagodus (synonym: Siliquaria) snails are obligatory sponge commensals, with uncoiling and laterally slitted shells embedded inside Demospongiae hosts, and shell apertures facing the outside allowing for respiratory and gill-filter-feeding activities. Live-collected animals observed in situ within hosts provide the first detailed functional morphological study of the group, and form the basis for systematic revision of the western Atlantic members of type genus Tenagodus (Siliquariidae, synonym: Tenagodidae). Three species are recognized. Overall anatomical features of wide-ranging Atlantic T. modestus (Dall, 1881) and T. squamatus (de Blainville, 1827) [ = T. anguillae Morch, 18611 are similar to those previously described for New Zealand...

Tipo: Text

Palavras-chave: Anatomy; Cerithioidea; Commensalism; Gastropoda; Morphology; Mutualism; Porifera; Sessility; Systematics; Taxonomy.

Ano: 2004

URL: https://archimer.ifremer.fr/doc/00226/33724/32136.pdf

Dupont, Samuel; Carre-mlouka, Alyssa; Domart-coulon, Isabelle; Vacelet, Jean; Bourguet-kondracki, Marie-lise.

Combining culture-dependent and independent approaches, we investigated for the first time the cultivable fraction of the prokaryotic community associated with the carnivorous sponge Asbestopluma hypogea. The heterotrophic prokaryotes isolated from this tiny sponge were compared between specimens freshly collected from cave and maintained in aquarium. Overall, 67 isolates obtained in pure culture were phylogenetically affiliated to the bacterial phyla Proteobacteria, Bacteroidetes, Actinobacteria, and Firmicutes. This cultivable diversity was lower than the prokaryotic diversity obtained by previous pyrosequencing study and comparable to that of another Mediterranean demosponge, the filter-feeding Phorbas tenacior. Furthermore, using fluorescence in situ...

Tipo: Text

Palavras-chave: Porifera; Asbestopluma hypogea; Carnivorous sponge; Symbiosis; Microbiology; Biologic activities.

Ano: 2014

URL: https://archimer.ifremer.fr/doc/00372/48273/48572.pdf

Protosuberites denhartogi spec. nov., a new name for European ‘Prosuberites epiphytum’ (Demospongiae, Hadromerida)

Soest, R.W.M. van; Kluijver, M.J. De.

The common NE Atlantic sponge species hitherto known under the name Prosuberites epiphytum (Lamarck, 1814), is differentiated from the South Australian type and other regional specimens. Spicule size and form, although generally similar, are subtly different. Australian P. epiphytum apparently persistently overgrow the thallus of algae, possibly as part of a symbiotic association, and this is not known for European specimens. In view of these facts and taking into account the disjunct distribution, it is proposed to assign the NE Atlantic populations to a new species. The genus Prosuberites has been restricted recently to species with single long tylostyles with heads embedded in a basal spongin plate, and both P. epiphytum and the new species do not...

Fossil and modern sponge fauna of southern Australia and adjacent regions compared: interpretation, evolutionary and biogeographic significance of the late Eocene ‘soft’ sponges

Palavras-chave: Porifera; Netherlands; Hadromerida; Protosuberites; 42.72.

Ano: 2003

URL: http://www.repository.naturalis.nl/record/220568

Łukowiak, M..

The late Eocene ‘soft’ sponge fauna of southern Australia is reconstructed based on disassociated spicules and is used to interpret the paleoecology and environmental context of shallow marine communities in this region. The reconstructed sponge association was compared with coeval sponge assemblages from the Oamaru Diatomite, New Zealand, and with the modern ‘soft’ sponge fauna of southern coastal of Australia. Based on the predominance of shallow- and moderately shallow-water species, the late Eocene assemblage is interpreted to have inhabited waters depths of about 100 m. This contrast with the spicule assemblage from New Zealand, which characterized deeper waters based on the presence of numerous strictly deepwater sponge taxa, and the absence of...

Trochospongilla horrida, een nieuwe spons voor Nederland (Porifera: Spongillidae)

Palavras-chave: Demospongiae; Homoscleromorpha; Porifera; 38.22; 42.72.

Ano: 2016

URL: http://www.repository.naturalis.nl/record/588734

Soest, R.W.M. van; Storm, B.; Swarte, M.B.A..

Trochospongilla horrida, a new sponge species for The Netherlands (Porifera: Spongillidae) Trochospongilla horrida is recorded in the Netherlands for the first time. It was recently discovered during a survey of invertebrates of the river IJssel. A description of the sponge material is given and records of other sponges occurring along with it in the river IJssel are provided. The specimens are kept in the collections of the Zoölogisch Museum Amsterdam.

Indonesian sponges of the genus Petrosia Vosmaer (Demospongiae: Haplosclerida)

Palavras-chave: Porifera; Spongillidae; Trochospongilla horrida; Nederland; Verspreiding; Herkenning; 42.72.

Ano: 2000

URL: http://www.repository.naturalis.nl/record/215293

Voogd, N.J. de; Soest, R.W.M. van.

Sponges of the genus Petrosia (Demospongiae: Haplosclerida) are large and characteristic components of many Indonesian reefs. We identify and provide descriptions of seven species of Petrosia collected recently on SW Sulawesi reefs (Eastern Indonesia), two of which are new to science: Petrosia (Petrosia) alfiani spec. nov. and Petrosia (Petrosia) hoeksemai spec. nov. Additional species recorded are Petrosia (Petrosia) lignosa Wilson, 1925, Petrosia (Petrosia) nigricans Lindgren, 1897, Petrosia (Petrosia) plana Wilson, 1925, Petrosia (Strongylophora) corticata (Wilson, 1925) and Petrosia (Strongylophora) strongylata Thiele, 1903. The species are discussed and compared with Petrosia records from other Indonesian and neighbouring Indo-West Pacific areas. We...

A new species of Erylus Gray, 1867 (Porifera, Geodiidae) from the southeastern coast of Brazil

Palavras-chave: Porifera; Haplosclerida; Petrosia (Petrosia); Petrosia (Strongylophora); Sulawesi; Eastern Indonesia; 42.72.

Ano: 2002

URL: http://www.repository.naturalis.nl/record/217474

Mothes, Beatriz; Lerner, Cléa.

A new species, Erylus soesti n. sp. is described from SE Brazil. This study is part of an ongoing revision of genus Erylus Gray, 1867 (Mothes, Lerner & Da Silva, 1999; Mothes & Lerner, 1999) and adds a further brazilian species to the genus. This new species can be distinguished by the possession of dichotriaenes, oxeas, and peculiar cushion-like aspidasters with extremely irregular outline, microspined microstrongyles and sphaeroxyasters. A key for identification of brazilian species is provided.

Tetractinellid and hadromerid sponges of the Sultanate of Oman

Palavras-chave: Porifera; Geodiidae; Erylus soesti n. sp.; Brazil; Taxonomy.

Ano: 2001

URL: http://www.repository.naturalis.nl/record/504893

Soest, R.W.M. van; Beglinger, E.J..

The Sultanate of Oman harbours rich populations of sponges, especially in the four coral reef areas (Musandam Peninsula, Muscat coast & Daymaniyat islands, coasts of Masirah Island, and the Khuriya Muriya Islands). Up till now, apart from a few incidental samples, the sponges of Oman were known only from five dredge stations made by the John Murray Expedition 1933-1934 off the south coasts of Oman, near the Khuriya Muriya Islands, between 13.5 and 1415 m. Descriptions of the sponges obtained in these dredges were published by Burton (1959) and the specimens are deposited in the collections of the Natural History Museum, London. To complement these dredge samples, we recently obtained samples collected by SCUBA and shore collecting, mostly from the...

Svenzea, a new genus of Dictyonellidae (Porifera: Demospongiae) from tropical reef environments, with description of two new species

Palavras-chave: Porifera; New species; Checklist; Oman; Gulf of Arabia; 42.72.

Ano: 2008

URL: http://www.repository.naturalis.nl/record/292120

Alvarez, Belinda; Soest, Rob W.M. van; Rützler, Klaus.

The new genus Svenzea is created to group three sponge species from tropical reef environments of the Caribbean Sea and Indonesia: Pseudaxinella (?) zeai Alvarez, Van Soest & Rützler, Svenzea cristinae n. sp. and S. devoogdae n. sp. The genus shows affinities with members of both Halichondrida and Haplosclerida but it is assigned to the family Dictyonellidae based on shared microanatomical and developmental features. The higher taxonomic position of Svenzea is a subject for future investigations.

Desmacella austini sp. nov. from sponge reefs off the Pacific coast of Canada

Palavras-chave: Porifera; Demospongiae; Dictyonellidae; New genus; New species; Svenzea cristinae; Svenzea devoogdae.

Ano: 2002

URL: http://www.repository.naturalis.nl/record/534358

Lehnert, H.; Conway, K.W.; Barrie, J. Vaughn; Krautter, M..

A new species of a very thinly encrusting Desmacella (Porifera, Demospongiae, Poecilosclerida, Desmacellidae) is described from Queen Charlotte Basin and Georgia Basin, off the Canadian Pacific coast. It is compared with all known species of the genus, differing in the geometry and size of spicules, and the persistent epizoic growth.

Shallow-water Niphatidae (Haplosclerina, Haplosclerida, Demospongiae) from the São Sebastião Channel and its environs (tropical southwestern Atlantic),

Palavras-chave: Porifera; Desmacellidae; Taxonomy; New species; Sponge reefs; Pacific; Canada; 42.72.

Ano: 2005

URL: http://www.repository.naturalis.nl/record/209651

Pinheiro, U.S.; Berlinck, R.G.S.; Hajdu, E..

Two niphatids are described here: Amphimedon viridis and Pachychalina alcaloidifera sp. nov. Amphimedon viridis is a common and conspicuous species in most of the tropical western Atlantic. Pachychalina alcaloidifera sp. nov. has this far been found only in the coasts of Rio de Janeiro and São Paulo states. Both species are described on the basis of series of specimens observed alive.