Are Sponges Good Natural Sentinels for Monitoring Fish Diversity in Antarctic Coastal Waters? [PDF]
Ecology and EvolutionMonitoring biodiversity in Antarctic ecosystems poses significant challenges, particularly due to the harsh environment. Traditional methods, such as beach seines, are time‐consuming, resource‐intensive, and difficult to carry out in Antarctica.
Carlos Angulo‐Preckler +5 more
doaj +2 more sources
Novel Discorhabdin Derivatives from Antarctic Sponges of the Genus Latrunculia: Expanding the Chemical Diversity of Polar Marine Natural Products [PDF]
Marine DrugsIn this study, three Antarctic sponges of the genus Latrunculia were investigated, leading to the isolation of five unreported pyrroloiminoquinone alkaloids along with the known metabolite (+)-debromodiscorhabdin A (3).
Sam Afoullouss +6 more
doaj +2 more sources
Recruitment, growth and mortality of an Antarctic hexactinellid sponge, Anoxycalyx joubini. [PDF]
PLoS ONE, 2013 Polar ecosystems are sensitive to climate forcing, and we often lack baselines to evaluate changes. Here we report a nearly 50-year study in which a sudden shift in the population dynamics of an ecologically important, structure-forming hexactinellid ...
Paul K Dayton +11 more
doaj +5 more sources
Chemical Changes Under Heat Stress and Identification of Dendrillolactone, a New Diterpene Derivative with a Rare Rearranged Spongiane Skeleton from the Antarctic Marine Sponge Dendrilla antarctica [PDF]
Marine DrugsThe waters around the western Antarctic Peninsula are experiencing fast warming due to global change, being among the most affected regions on the planet.
Andrea Prófumo +2 more
doaj +2 more sources
Chemical and microbiological insights into two littoral Antarctic demosponge species: Haliclona (Rhizoniera) dancoi (Topsent 1901) and Haliclona (Rhizoniera) scotti (Kirkpatrick 1907) [PDF]
Frontiers in MicrobiologyIntroductionAntarctic Porifera have gained increasing interest as hosts of diversified associated microbial communities that could provide interesting insights on the holobiome system and its relation with environmental parameters.MethodsThe Antarctic ...
Maria Papale +6 more
doaj +2 more sources
Characterizing the microbiomes of Antarctic sponges: a functional metagenomic approach. [PDF]
Sci Rep, 2020 AbstractRelatively little is known about the role of sponge microbiomes in the Antarctic marine environment, where sponges may dominate the benthic landscape. Specifically, we understand little about how taxonomic and functional diversity contributes to the symbiotic lifestyle and aids in nutrient cycling.
Moreno-Pino M +3 more
europepmc +4 more sources
Elucidating a chemical defense mechanism of Antarctic sponges: A computational study. [PDF]
J Mol Graph Model, 2017 In 2000, a novel secondary metabolite (erebusinone, Ereb) was isolated from the Antarctic sea sponge, Isodictya erinacea. The bioactivity of Ereb was investigated, and it was found to inhibit molting when fed to the arthropod species Orchomene plebs. Xanthurenic acid (XA) is a known endogenous molt regulator present in arthropods.
Vankayala SL +4 more
europepmc +4 more sources
Diversity in a Cold Hot-Spot: DNA-Barcoding Reveals Patterns of Evolution among Antarctic Demosponges (Class Demospongiae, Phylum Porifera). [PDF]
PLoS ONE, 2015 The approximately 350 demosponge species that have been described from Antarctica represent a faunistic component distinct from that of neighboring regions.
Sergio Vargas +5 more
doaj +1 more source
Frontiers in Microbiology, 2021 Antarctic sponges harbor a diverse range of microorganisms that perform unique metabolic functions for nutrient cycles. Understanding how microorganisms establish functional sponge–microbe interactions in the Antarctic marine ecosystem provides clues ...
Mario Moreno-Pino +5 more
doaj +1 more source
Occurrence of a Taurine Derivative in an Antarctic Glass Sponge [PDF]
Natural Product Communications, 2014 The n-butanol extract of an Antarctic hexactinellid sponge, Anoxycalyx (Scolymastra) joubini, was found to contain a taurine-conjugated anthranilic acid, never reported so far either as a natural product or by synthesis. The compound was inactive against human cancer cells in an in vitro growth inhibitory test, and also showed no antibacterial activity.
Carbone M +5 more
openaire +3 more sources