Results 21 to 30 of about 758 (126)
Geosciences, 2022 Following the end-Permian crisis, microbialites were ubiquitous worldwide. For instance, Triassic deposits in the Germanic Basin provide a rich record of stromatolites as well as of microbe-metazoan build-ups with nonspicular demosponges.
Yu Pei +4 more
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Filtration Rates and Scaling in Demosponges
Journal of Marine Science and Engineering, 2022 Demosponges are modular filter-feeding organisms that are made up of aquiferous units or modules with one osculum per module. Such modules may grow to reach a maximal size.
Hans Ulrik Riisgård, Poul S. Larsen
doaj +1 more source
Marine Drugs, 2019 The bioactive bromotyrosine-derived alkaloids and unique morphologically-defined fibrous skeleton of chitin origin have been found recently in marine demosponges of the order Verongiida.
Lamiaa A. Shaala +17 more
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Cytotoxic Compounds of Two Demosponges (Aplysina aerophoba and Spongia sp.) from the Aegean Sea
Biomolecules, 2021 The class of demosponges is the biggest and most diverse of all described sponge species and it is reported to produce a plethora of chemically different metabolites with interesting biological activities.
Maria Orfanoudaki +9 more
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The Skeletal Amino Acid Composition of the Marine Demosponge Aplysina cavernicola
Marine Drugs, 2014 It has been discovered during the past few years that demosponges of the order Verongida such as Aplysina cavernicola exhibit chitin-based skeletons. Verongida sponges are well known to produce bioactive brominated tyrosine derivatives. We could recently
Susanne Ueberlein +4 more
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Determination of the Halogenated Skeleton Constituents of the Marine Demosponge Ianthella basta
Marine Drugs, 2017 Demosponges of the order Verongida such as Ianthella basta exhibit skeletons containing spongin, a collagenous protein, and chitin. Moreover, Verongida sponges are well known to produce bioactive brominated tyrosine derivatives.
Susanne Ueberlein +3 more
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Reconstruction of family-level phylogenetic relationships within Demospongiae (Porifera) using nuclear encoded housekeeping genes. [PDF]
PLoS ONE, 2013 Demosponges are challenging for phylogenetic systematics because of their plastic and relatively simple morphologies and many deep divergences between major clades.
Malcolm S Hill +32 more
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Frontiers in Microbiology, 2020 In the present study, we profiled bacterial and archaeal communities from 13 phylogenetically diverse deep-sea sponge species (Demospongiae and Hexactinellida) from the South Pacific by 16S rRNA-gene amplicon sequencing.
Georg Steinert +17 more
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Taxonomical and biogeographical notes on the sponges of the Strait of Magellan
Scientia Marina, 1999 The sponge material from the Straits of Magellan collected by the research vessels Cariboo in 1991 and Victor Hensen in 1994, and by a shallow water diving team, were studied.
Maurizio Pansini, Michele Sará
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Inhibitory Effect of Aqueous Extracts from Marine Sponges on the Activity and Expression of Gelatinases A (MMP-2) and B (MMP-9) in Rat Astrocyte Cultures. [PDF]
PLoS ONE, 2015 The aim of this study was to evaluate whether water soluble compounds present in aqueous extracts from seven Mediterranean demosponges exert biological activity towards matrix metalloproteinases (MMPs), which represent important pathogenic factors of ...
Gaetano Di Bari +6 more
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