Results 21 to 30 of about 311 (131)

Divergence times in demosponges (Porifera): first insights from new mitogenomes and the inclusion of fossils in a birth-death clock model

BMC Evolutionary Biology, 2018
Background Approximately 80% of all described extant sponge species belong to the class Demospongiae. Yet, despite their diversity and importance, accurate divergence times are still unknown for most demosponge clades.
Astrid Schuster, Sergio Vargas, Ingrid S. Knapp, Shirley A. Pomponi, Robert J. Toonen, Dirk Erpenbeck, Gert Wörheide   +6 more
doaj   +1 more source

Embryo development of Corticium candelabrum (Demospongiae: Homosclerophorida) [PDF]

Invertebrate Biology, 2007
Abstract. Corticium candelabrum is a homosclerophorid sponge widespread along the rocky Mediterranean sublittoral. Scanning and transmission electron microscopy were used to describe the gametes and larval development. The species is hermaphroditic. Oocytes and spermatocytes are clearly differentiated in April.
de Caralt Bosch, S., Uriz, M.J., Ereskovsky, A.V., Wijffels, R.H.   +3 more
openaire   +3 more sources

Glycosides from Marine Sponges (Porifera, Demospongiae): Structures, Taxonomical Distribution, Biological Activities and Biological Roles

Marine Drugs, 2012
Literature data about glycosides from sponges (Porifera, Demospongiae) are reviewed. Structural diversity, biological activities, taxonomic distribution and biological functions of these natural products are discussed.
Valentin A. Stonik, Tatyana N. Makarieva, Vladimir I. Kalinin, Vladimir B. Krasokhin, Natalia V. Ivanchina   +4 more
doaj   +1 more source

Sponges from rhodolith beds surrounding Ustica Island marine protected area (southern Tyrrhenian Sea), with a comprehensive inventory of the island sponge fauna

Scientia Marina, 2020
The sponge fauna colonizing rhodolith beds from Ustica Island marine protected area was studied. Moreover, an inventory of the sponge species present along the island’s coasts was carried out for the first time.
Caterina Longo, Giuseppe Corriero, Frine Cardone, Maria Mercurio, Cataldo Pierri, Carlotta Nonnis Marzano   +5 more
doaj   +1 more source

A Metataxonomic Approach Reveals Diversified Bacterial Communities in Antarctic Sponges

Marine Drugs, 2021
Marine sponges commonly host a repertoire of bacterial-associated organisms, which significantly contribute to their health and survival by producing several anti-predatory molecules. Many of these compounds are produced by sponge-associated bacteria and
Nadia Ruocco, Roberta Esposito, Marco Bertolino, Gianluca Zazo, Michele Sonnessa, Federico Andreani, Daniela Coppola, Daniela Giordano, Genoveffa Nuzzo, Chiara Lauritano, Angelo Fontana, Adrianna Ianora, Cinzia Verde, Maria Costantini   +13 more
doaj   +1 more source

Alcalóides alquilpiridínicos de esponjas marinhas Alkylpyridine alkaloids from marine sponges

Química Nova, 1997
The chemistry of alkylpyridine alkaloids originating from marine sponges is comprehensively reviewed, with emphasis on their natural occurrence, methods for their isolation, spectroscopic characterization, biological activities e chemical synthesis.
Adaíla M. P. Almeida, Roberto G. S. Berlinck, Eduardo Hajdu   +2 more
doaj   +1 more source

Potential invasive species detection of Demospongiae using environmental DNA in Sabang and Lhokseumawe Ports [PDF]

BIO Web of Conferences
Sabang and Lhokseumawe Ports are located in the province of Aceh and constitute part of the northern Malacca Strait, sharing direct borders with neighboring countries such as Malaysia, Thailand, and India.
Lestari Dea Fauzia, Yonatika Niken Oktaviandini, Hartanto Mochamad Tri, Cakasana Nadya, Riyanto Mochammad, Salsabila Afviya, Susanti Santi, Triana Denta   +7 more
doaj   +1 more source

Marine Drugs from Sponge-Microbe Association—A Review

Marine Drugs, 2010
The subject of this review is the biodiversity of marine sponges and associated microbes which have been reported to produce therapeutically important compounds, along with the contextual information on their geographic distribution.
Tresa Remya A. Thomas, Devanand P. Kavlekar, Ponnapakkam A. LokaBharathi   +2 more
doaj   +1 more source

New records of association between caridean shrimps (Decapoda) and sponges (Porifera) in Abrolhos Archipelago, northeastern Brazil

Nauplius, 2017
The association of the caridean shrimps Anchistioides antiguensis (Schmitt, 1924) and Typton gnathophylloides Holthuis, 1951 with the sponges Dysidea janiae (Duchassaing & Michelotti, 1864) and Amphimedon viridis Duchassaing & Michelotti, 1864 ...
Guidomar Oliveira Soledade, George Garcia Santos, Ulisses Pinheiro, Alexandre Oliveira Almeida   +3 more
doaj   +1 more source

Monanchocidin A From Subarctic Sponges of the Genus Monanchora and Their Promising Selectivity Against Melanoma in vitro

Frontiers in Marine Science, 2020
Marine sources have long been known for their potential to produce unique skeletons and various biological activities. Fractionation of the ethanol extracts of an undescribed species of MonanchoraCarter, 1883 and a specimen closely comparable to ...
Vedanjali Gogineni, Joonseok Oh, Amanda L. Waters, Michelle Kelly, Robert Stone, Mark T. Hamann   +5 more
doaj   +1 more source