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

SAR of Sponge-Inspired Hemibastadin Congeners Inhibiting Blue Mussel PhenolOxidase

Le Norcy, Tiffany; Niemann, Hendrik; Proksch, Peter; Linossier, Isabelle; Vallee-rehel, Karine; Hellio, Claire; Fay, Fabienne.

Dibromohemibastadin-1 (DBHB) is an already known potent inhibitor of blue mussel phenoloxidase (which is a key enzyme involved in bioadhesion). Within this study, the potentiality of DBHB against microfouling has been investigated. The activity of DBHB was evaluated on key strains of bacteria and microalgae involved in marine biofilm formation and bioassays assessing impact on growth, adhesion and biofilm formation were used. To assess the efficiency of DBHB when included in a matrix, DBHB varnish was prepared and the anti-microfouling activity of coatings was assessed. Both in vitro and in situ immersions were carried out. Confocal Laser Scanning Microscopy (CLSM) was principally used to determine the biovolume and average thickness of biofilms developed...

Tipo: Text

Palavras-chave: Antifouling; Biodegradable coating; Hemibastadin; Sponges; Marine bacteria; Microalgae.

Ano: 2017

URL: https://archimer.ifremer.fr/doc/00616/72812/72626.pdf

Quorum sensing inhibitors from Leucetta chagosensis Dendy, 1863

Niemann, Hendrik; Hagenow, Jens; Chung, Mi-young; Hellio, Claire; Weber, Horst; Proksch, Peter.

Hemibastadin derivatives, including the synthetically-derived 5,5-dibromohemibastadin-1 (DBHB), are potent inhibitors of blue mussel phenoloxidase (PO), which is a key enzyme involved in the firm attachment of this invertebrate to substrates and, thus, a promising molecular target for anti-fouling research. For a systematic investigation of the enzyme inhibitory activity of hemibastadin derivatives, we have synthesized nine new congeners, which feature structural variations of the DBHB core structure. These structural modifications include, e.g., different halogen substituents present at the aromatic rings, different amine moieties linked to the (E)-2-(hydroxyimino)-3-(4-hydroxyphenyl)propionic acid, the presence of free vs. substituted aromatic hydroxyl...

Tipo: Text

Palavras-chave: Antifouling; Hemibastadin; Phenoloxidase; Sponges; Copper; Mytilus edulis.

Ano: 2015

URL: https://archimer.ifremer.fr/doc/00273/38432/73167.pdf

The isotope composition of inorganic Germanium in seawater and deep sea sponges

Mai, T.; Tintillier, Florent; Lucasson, Aude; Moriou, C.; Bonno, E.; Petek, S.; Magre, Kevin; Al Mourabit, A.; Saulnier, Denis; Debitus, C..

Sponges are a rich source for investigation of bioactive small molecules. They have been mostly investigated for the search of new pharmacological models or therapeutic agents for the treatment of human diseases. Micro-organisms can also represent a virulent pathogen for marine invertebrates such as sponges, which need to protect themselves against these microbes. Sponges' self defence mechanisms involving dialogue molecules thus represent a pertinent research track for potent anti-infective and anti-biofilm activities such as quorum sensing inhibitors (QSIs). The investigation of the QSI crude extract of Leucetta chagosensis Dendy, 1863 led to the isolation of three new alkaloids, isonaamine D, di-isonaamidine A and leucettamine D, along with the known...

Tipo: Text

Palavras-chave: Biofouling; Leucetta chagosensis; Leucettamine; Naamidine; Naamine; Quorum sensing; Quorum sensing inhibitors; Sponges; Vibrio harveyi.

Ano: 2015

URL: http://archimer.ifremer.fr/doc/00275/38597/37189.pdf

Guillermic, Maxence; Lalonde, Stefan; Hendry, Katharine R.; Rouxel, Olivier.

Although dissolved concentrations of germanium (Ge) and silicon (Si) in modern seawater are tightly correlated, uncertainties still exist in the modern marine Ge cycle. Germanium stable isotope systematics in marine systems should provide additional constraints on marine Ge sources and sinks, however the low concentration of Ge in seawater presents an analytical challenge for isotopic measurement. Here, we present a new method of pre-concentration of inorganic Ge from seawater which was applied to measure three Ge isotope profiles in the Southern Ocean and deep seawater from the Atlantic and Pacific Oceans. Germanium isotopic measurements were performed on Ge amounts as low as 2.6 ng using a double-spike approach and a hydride generation system coupled to...

Tipo: Text

Palavras-chave: Stable isotopes; Germanium; Silicon; Sponges; Southern Ocean; Chemical oceanography.

Ano: 2017

URL: http://archimer.ifremer.fr/doc/00388/49956/50529.pdf

Cold-water coral reefs and adjacent sponge grounds: hotspots of benthic respiration and organic carbon cycling in the deep sea

North Atlantic Basin-Scale Multi-Criteria Assessment Database to Inform Effective Management and Protection of Vulnerable Marine Ecosystems

Cathalot, Cecile; Van Oevelen, Dick; Cox, Tom J.s.; Kutti, Tina; Lavaleye, Marc S. S.; Duineveld, Gca; Meysman, Filip J. R..

Cold-water coral reefs and adjacent sponge grounds are distributed widely in the deep ocean, where only a small fraction of the surface productivity reaches the seafloor as detritus. It remains elusive how these hotspots of biodiversity can thrive in such a food-limited environment, as data on energy flow and organic carbon utilization are critically lacking. Here we report in situ community respiration rates for cold-water coral and sponge ecosystems obtained by the non-invasive aquatic Eddy Correlation technique. Oxygen uptake rates over coral reefs and adjacent sponge grounds in the Træna Coral Field (Norway) were 9–20 times higher than those of the surrounding soft sediments. These high respiration rates indicate strong organic matter consumption, and...

Tipo: Text

Palavras-chave: Deep-seaecosystems; Cold-watercorals; Sponges; Respiration; Energyflow.

Ano: 2015

URL: http://archimer.ifremer.fr/doc/00275/38574/37099.pdf

Biomimetic Approaches for the Development of New Antifouling Solutions: Study of Incorporation of Macroalgae and Sponge Extracts for the Development of New Environmentally-Friendly Coatings

Morato, Telmo; Pham, Christopher K.; Fauconnet, Laurence; Taranto, Gerald H.; Chimienti, Giovanni; Cordes, Erik; Dominguez-carrio, Carlos; Munoz, Pablo Duran; Egilsdottir, Hronn; Gonzalez-irusta, Jose-manuel; Grehan, Anthony; Hebbeln, Dierk; Henry, Lea-anne; Kazanidis, Georgios; Kenchington, Ellen; Menot, Lenaick; Molodtsova, Tina N.; Orejas, Covadonga; Ramiro-sanchez, Berta; Ramos, Manuela; Roberts, J. Murray; Rodrigues, Luis; Ross, Steve W.; Rueda, Jose L.; Sacau, Mar; Stirling, David; Carreiro-silva, Marina.

Tipo: Text

Palavras-chave: Deep-sea; Deep-sea fisheries; Marine protected areas; Area-based management tools; Sponges; Cold-water corals; Vulnerable marine ecosystems; Ecologically or biologically significant marine areas.

Ano: 2021

URL: https://archimer.ifremer.fr/doc/00689/80109/83167.pdf

Sánchez-lozano, Ilse; Hernández-guerrero, Claudia Judith; Muñoz-ochoa, Mauricio; Hellio, Claire.

Biofouling causes major economic losses in the maritime industry. In our site study, the Bay of La Paz (Gulf of California), biofouling on immersed structures is a major problem and is treated mostly with copper-based antifouling paints. Due to the known environmental effect of such treatments, the search for environmentally friendly alternatives in this zone of high biodiversity is a priority to ensure the conservation and protection of species. The aim of this work was to link chemical ecology to marine biotechnology: indeed, the natural defense of macroalgae and sponge was evaluated against biofoulers (biofilm and macrofoulers) from the same geographical zone, and some coatings formulation was done for field assays. Our approach combines in vitro and...

Tipo: Text

Palavras-chave: Adhesion; Algae; Antifouling; Biofilm; Extracts; Field assays; Sponges; Haliclona caerulea; Laurencia gardneri; Sargassum horridum; Ircinia sp.

Ano: 2019

URL: https://archimer.ifremer.fr/doc/00589/70074/68047.pdf

Short note on three species of Ordovician Orchocladina (Demospongea, Porifera)

Rhebergen, F..

The type and only specimen of Fibrocoelia tubantiensis Van Kempen, that was housed in the palaeontological collection of the Geological Institute of the University of Amsterdam, has been reposited in the Netherlands Centre for Biodiversity – Naturalis, Leiden, the Netherlands. Syltrochos pyramidoidalis Von Hacht, placed in an uncertain order and family by Finks & Rigby, is revised on the basis of new material. This has revealed that the skeleton is composed of spheroclones, so that the species has to be assigned to the Astylospongiidae von Zittel. The species name Carpospongia langei Von Hacht is invalid, being a junior synonym of Carpospongia pogrebowi Asatkin.

Suberitidae (Demospongiae, Hadromerida) from the North Aegean Sea

Palavras-chave: Erratics; Sponges; Repository; Classification; 38.22; 42.72.

Ano: 2011

URL: http://www.repository.naturalis.nl/record/428482

Voultsiadou-Koukoura, Eleni; Soest, Rob W.M. van.

Sampling in the North Aegean Sea yielded nine species of the family Suberitidae, four of which, Pseudosuberites sulphureus, P. hyalinus, Suberiles ficus and S. syringella, are new for the fauna of the Eastern Mediterranean, and three more, S. carnosus, S. domuncula, and S. massa, are new records for the fauna of the Aegean Sea. For each of the nine species comments on the systematics, as well as geographical and ecological information is given. A redescription is given of the little known species Suberites massa Nardo. A review of the distribution of all Mediterranean Suberitidae is also presented, in which it is concluded that a further three species not represented in our material have been reported from the Eastern Mediterranean, viz. Laxosuberites...

The taxonomic significance of the short-shafted mesotriaene reviewed by parsimony analysis: validation of Pachastrella ovisternata Von Lendenfeld (Demospongiae: Astrophorida)

Palavras-chave: Sponges; Hadromerida; Suberitidae; North Aegean Sea.

Ano: 1993

URL: http://www.repository.naturalis.nl/record/504734

Maldonado, Manuel.

The spicule complement of a demosponge specimen collected from the Atlantic coast of Spain was noted to be similar to that of Pachastrella monilifera, but particularly characterized by the presence of short-shafted mesotriaenes. After detailed examination, it was concluded that the specimen undoubtedly belonged to the species Pachastrella ovisternata Von Lendenfeld, 1894. For a long time, this species has been regarded a synonym of Pachastrella monilifera Schmidt, 1868. Examination of this new specimen showed that Pachastrella ovisternata was a valid species of the genus Pachastrella. Moreover, it denoted the real existence of mesotriaenes in this genus. The parsimony analyses indicated that the species Yodomia perfecta, traditionally assigned to the genus...

Shallow water sponges of Jamaica

Palavras-chave: Astrophorida; Pachastrellidae; Parsimony analysis; Sponges; Taxonomy.

Ano: 1993

URL: http://www.repository.naturalis.nl/record/504266

Lehnert, Helmut; Soest, Rob W.M. van.

An annotated comprehensive list is provided of all shallow-water sponges (down to 60 m) recently collected and previously recorded from Jamaica. Five new species are described, Plakina jamaicensis, Melophlus ruber, Agelas repens, Stylissa caribica and Hyrtios tubulatus, two of which belong to genera not recorded before from the Western Atlantic (viz. Melophlus and Stylissa). The number of species recorded from shallow waters (reefs, mangroves and lagoons) now amounts to 157 species, several of which, however, are still of uncertain status.

Skeletons in confusion: a review of astrophorid sponges with (dicho-)calthrops as structural megascleres (Porifera, Demospongiae, Astrophorida)

Palavras-chave: Sponges; Jamaica; Shallow-water; New species; Checklist.

Ano: 1998

URL: http://www.repository.naturalis.nl/record/505151

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

We present a review of astrophorid species possessing calthrops megascleres as structural megascleres (including species with dichotriaene modifi cations, but excluding mesotriaene and trichotriaene bearing species). Radiating oxeas characteristic of most astrophorids are lacking in such sponges, but auxiliary oxeas are apparently present in some species. Th ese sponges are currently assigned to two families, Pachastrellidae with four nominal genera Dercitus, Stoeba, Dercitancorina, Halinastra (the latter two generally considered junior synonyms of Stoeba), and Calthropellidae with nominal genera Calthropella, Corticellopsis (usually considered a junior synonym), Pachataxa and Pachastrissa. Our review of many original specimens and extensive new material...

North Jamaican Deep Fore-Reef Sponges

Palavras-chave: Sponges; Astrophorida; Pachastrellidae; Dercitus; Calthropellidae; Calthropella; Taxonomy; New species; 42.72.

Ano: 2010

URL: http://www.repository.naturalis.nl/record/376610

Lehnert, Helmut; Soest, R.W.M. van.

An unexpectedly high amount of new species, revealed within only one hour of summarized bottom time, leads to the conclusion that the sponge fauna of the steep slopes of the deep fore-reef is still largely unknown. Four mixed gas dives at depths between 70 and 90 m, performed in May and June, 1993, at the deep fore-reef off the north Jamaican coast in front of the Discovery Bay Marine Laboratory, revealed a total of 27 demosponge species, ten of which are new to science.

Lissodendoryx species of the Indo-Malayan Archipelago (Demospongiae: Poecilosclerida)

Palavras-chave: Sponges; Deep-water; Fore-reef; Jamaica.

Ano: 1996

URL: http://www.repository.naturalis.nl/record/504805

Hofman, Caroline C.; Soest, R.W.M. van.

A brief history of the genus Lissodendoryx Topsent, 1892 is given and the Indo-Malayan representatives are described based on material collected by the Siboga Expedition (1899-1900) and the Indonesian-Dutch Snellius II Expedition (1984-1985), on reexamination of previously described specimens from the area, and on the literature. Previously, ten species assigned to Lissodendoryx were reported from this area. Two of these, L. baculata Topsent, 1897 and L. tawiensis Wilson, 1925, do not conform to the presently employed definition of the genus Lissodendoryx. One, L. sinensis Brøndsted, 1934, is considered a junior synonym of L. ternatensis (Thiele, 1903). L. grata (Thiele, 1903) is a valid species of Lissodendoryx, with L. oxytes De Laubenfels, 1954 of the...

Mycale species (Porifera: Poecilosclerida) of Northwest Africa and the Macaronesian Islands

Palavras-chave: Sponges; Poecilosclerida; Lissodendoryx; Indo-Malayan Archipelago.

Ano: 1995

URL: http://www.repository.naturalis.nl/record/505066

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

Based on collections assembled by Dutch expeditions to the Northwest African region, including the offshore islands in the neighbouring Atlantic, a taxonomic monograph of sponges of the genus Mycale is presented. Additional material from the region borrowed from the Zoologisk Museum of the University of Copenhagen and incidental samples made by individual collectors were also included. The combined collections contained sixteen species, nine of which are new to science: Mycale (Aegogropila) syringosimilis spec. nov., Mycale (Aegogropila) tenerifensis spec. nov., Mycale (Arenochalina) africamucosa spec. nov., Mycale (Carmia) atropha spec. nov., Mycale (Carmia) guineensis spec. nov., Mycale (Naviculina) cruzi spec. nov., Mycale (Paresperella) janvermeuleni...

Affinities of the family Sollasellidae (Porifera, Demospongiae). I. Morphological evidence

Palavras-chave: Porifera; Sponges; New species; Mycale; Saharan Upwelling; Sahelian Upwelling; Macaronesia; 42.72.

Ano: 2014

URL: http://www.repository.naturalis.nl/record/516158

Soest, R.W.M. van; Hooper, J.N.A.; Beglinger, E.; Erpenbeck, D..

Comparison of Sollasella digitata Lendenfeld, 1888, up until the present assigned to its own family Sollasellidae Lendenfeld, 1887 in the order Hadromerida, and Raspailopsis cervicornis Burton, 1959, assigned to Raspailiidae Nardo, 1833 in the order Poecilosclerida, leads to the conclusion that both should be considered congeneric and are best assigned to a single genus Sollasella. This conclusion is based on examination of habit and skeletal characters of the type material of S. digitata and both type and freshly collected material of S. cervicornis. The conclusion is strengthened by the discovery of a new species, Sollasella moretonensis n.sp. collected in North Australia (primarily in the northeastern coast, but also an isolated record from the...

Diversity and spatial heterogeneity of mangrove associated sponges of Curaçao and Aruba

Palavras-chave: Sponges; Classification; Sollasellidae; Raspailiidae; Sollasella; Raspailopsis; Australia; Oman; 42.72.

Ano: 2006

URL: http://www.repository.naturalis.nl/record/214536

Hunting, E.R.; Soest, R.W.M. van; Geest, H.G. van der; Vos, A.; Debrot, A.O..

Sponges are major epibionts of mangrove roots in the Caribbean. Mangrove sponge communities in the Caribbean mainly consist of species that are typical to this habitat and community compositions often differ from those found on coral reefs nearby. Heterogeneity in species distributions between locations and within locations between roots is often reported. This study quantifies the diversity and abundance of mangrove associated sponges in the inner bays of Curaçao and Aruba and correlates variability of regional sponge diversity with environmental variables measured along the surveyed sites. Tannin concentrations vary between mangrove roots, and were correlated to sponge cover as a possible cause for habitat heterogeneity on a smaller scale. A total of 22...

New species of Zyzzya, Cornulella, Damiria, and Acheliderma (Porifera: Poecilosclerida), with a review of fistular genera of Iophonidae

Palavras-chave: Epibionts; Heterogeneity; Mangroves; Spatial variations; Sponges; Tannins; 42.72.

Ano: 2008

URL: http://www.repository.naturalis.nl/record/291892

Soest, R.W.M. van; Zea, S.; Kielman, M..

New sponge species belonging to the closely related fistular genera Zyzzya, Cornulella, Damiria, and Acheliderma are described from reef habitats off the coasts of Colombia, Bonaire and Curaçao in the southern Caribbean. With very few exceptions these sponges are small to tiny specimens inhabiting crevices and other cryptic habitats; some may be excavating. For comparison both published and unpublished material belonging to these genera from other parts of the world was examined, and this yielded several nomenclatorial changes and a further three new species from the Indian Ocean. The new species are: Zyzzya invemar (Caribbean), Cornulella santamartae (Caribbean), C. tyro (Seychelles), C. amirantensis (Seychelles), Damiria leonorae (Caribbean), D. toxifera...

Affinities of the family Sollasellidae (Porifera, Demospongiae). II. Molecular evidence

Palavras-chave: Caribbean coral reefs; Seychelles reefs; Sponges; Poecilosclerida; Lophonidae; Fistule growth form; Excavating growth form.

Ano: 1994

URL: http://www.repository.naturalis.nl/record/503917

Erpenbeck, D.; Hooper, J.N.A.; List-Armitage, S.E.; Degnan, B.M.; Wörheide, G.; Soest, R.W.M. van.

This is the second part of a revision and re-classification of the demosponge family Sollasellidae, and an example of a successful use of combined morphological and molecular data. Sollasella had been a poorly known, long forgotten taxon, placed incertae sedis in the order Hadromerida in the last major revision of the demosponges. It has recently been suggested to belong to Raspailiidae in the order Poecilosclerida due to striking morphological similarities. The present analysis verified this re-classification using molecular markers. Comparing 28S rDNA fragments of Sollasella cervicornis, a newly described species S. moretonensis and a representative set of raspailiid and hadromerid samples. In our analyses Sollasella clearly clusters inside the...