Results 31 to 40 of about 4,207 (201)

Comparative Chemical Profiling and Antimicrobial/Anticancer Evaluation of Extracts from Farmed versus Wild Agelas oroides and Sarcotragus foetidus Sponges

open access: yesMarine Drugs, 2023
Marine sponges are highly efficient in removing organic pollutants and their cultivation, adjacent to fish farms, is increasingly considered as a strategy for improving seawater quality.
Despoina Varamogianni-Mamatsi   +12 more
doaj   +1 more source

Uncovering the hidden diversity of Paleogene sponge fauna of the East European Platform through reassessment of the record of isolated spicules [PDF]

open access: yesActa Palaeontologica Polonica, 2019
Despite being reported from various localities and stratigraphic intervals, knowledge of the siliceous sponges from the Cenozoic of Eastern Europe remains surprisingly limited.
Magdalena Łukowiak   +2 more
doaj   +1 more source

Metabolites and Bioactivity of the Marine Xestospongia Sponges (Porifera, Demospongiae, Haplosclerida) of Southeast Asian Waters

open access: yesBiomolecules, 2023
Sponges are aquatic, spineless organisms that belong to the phylum Porifera. They come in three primary classes: Hexactinellidae, Demospongiae, and Calcarea. The Demospongiae class is the most dominant, making up over 90% of sponge species.
Fikri Akmal Khodzori   +5 more
doaj   +1 more source

Eocene phymaraphiniid demosponges from South Western Australia: filling the gap

open access: yesActa Palaeontologica Polonica, 2023
We describe two new genera of phymaraphiniid lithistid sponges Twertupia gen. nov. and Pickettispongia gen. nov. from the upper Eocene Pallinup Formation of South Western (SW) Australia based on new, rich and very well preserved material. Type material
ANDRZEJ PISERA   +2 more
doaj   +1 more source

Sponging up diversity: Evaluating metabarcoding performance for a taxonomically challenging phylum within a complex cryptobenthic community

open access: yesEnvironmental DNA, 2022
Despite their ecological importance, sponges are often avoided in biodiversity studies and monitoring programs because they are notoriously difficult to identify using morphological or molecular methods. Here, we investigate the metabarcoding performance
Molly A. Timmers   +4 more
doaj   +1 more source

Chemotaxonomy of Agelas (Porifera: Demospongiae) [PDF]

open access: yesBiochemical Systematics and Ecology, 1992
The secondary metabolite content of four different species of Agelas (Porifera) from the West Indies has been studied. All the compounds isolated are already known metabolites whose identification was confirmed by comparison of their spectral properties with those reported in the literature.
Braekman, Jean Claude   +3 more
openaire   +2 more sources

Implementation of the benefits of symbiotic bacteria in Demospongiae sponges in Indonesian waters using the literature study method [PDF]

open access: yesBIO Web of Conferences
A Demospongiae sponge is an organism that can interact with symbiotic bacteria. Symbiotic bacteria form a specific mutualistic symbiosis that creates a stable and beneficial association with their hosts. This review examines the diversity and benefits of
Imanditya Muhammad Fachriza   +10 more
doaj   +1 more source

Global diversity of sponges (Porifera). [PDF]

open access: yes, 2012
With the completion of a single unified classification, the Systema Porifera (SP) and subsequent development of an online species database, the World Porifera Database (WPD), we are now equipped to provide a first comprehensive picture of the global ...
Jean Vacelet   +47 more
core   +1 more source

Dosilia (Porifera, Demospongiae) redefined [PDF]

open access: yesIheringia. Série Zoologia, 2010
Dosilia plumosa (Carter, 1849), type species of the genus, and D. brouni (Kirkpatrick, 1906), with distribution respectively in the Oriental and Ethiopic regions, are revised based on a SEM analysis of spicules, gemmules and skeletal structure. The lectotype here designated for D.
Cândido, Jairo Luís   +2 more
openaire   +4 more sources

Taxonomic notes on Poecillastra sponges (Astrophorida: Pachastrellidae), with the description of three new bathyal southeastern Pacific species

open access: yesScientia Marina, 2011
Three new species of Poecillastra are described here from bathyal waters off central Chile. P. antonbruunae n. sp. is diagnosed by its two categories of oxeas, the smaller one only up to 621 μm in length, and calthrops as the sole triaene category; P ...
Mariana S. Carvalho   +2 more
doaj   +1 more source

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