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Sterol Composition of Sponges, Cnidarians, Arthropods, Mollusks, and Echinoderms from the Deep Northwest Atlantic: A Comparison with Shallow Coastal Gulf of Mexico
LAURA CARREON PALAU
nurgul sen ozdemir
Christopher Parrish
Acceso Abierto
Atribución-NoComercial-SinDerivadas
DOI: 10.3390/md18120598
URL: https://www.mdpi.com/1660-3397/18/12/598
ISSN: 1660-3397
Thenea muricata, Aplysina sp., Pseudoanthomastus agaricus, Montastraea cavernosa, Buccinum sp., Pasiphaea tarda, Phormosoma placenta, Echinometra lucunter, sterols, gas chromatography, mass spectrometry
"Triterpenoid biosynthesis is generally anaerobic in bacteria and aerobic in Eukarya. The major class of triterpenoids in bacteria, the hopanoids, is different to that in Eukarya, the lanostanoids, and their 4,4,14-demethylated derivatives, sterols. In the deep sea, the prokaryotic contribution to primary productivity has been suggested to be higher because local environmental conditions prevent classic photosynthetic processes from occurring. Sterols have been used as trophic biomarkers because primary producers have different compositions, and they are incorporated in primary consumer tissues. In the present study, we inferred food supply to deep sea, sponges, cnidarians, mollusks, crustaceans, and echinoderms from euphotic zone production which is driven by phytoplankton eukaryotic autotrophy. Sterol composition was obtained by gas chromatography and mass spectrometry. Moreover, we compared the sterol composition of three phyla (i.e., Porifera, Cnidaria, and Echinodermata) collected between a deep and cold-water region and a shallow tropical area. We hypothesized that the sterol composition of shallow tropical benthic organisms would better reflect their photoautotrophic sources independently of the taxonomy. Shallow tropical sponges and cnidarians from environments showed plant and zooxanthellae sterols in their tissues, while their deep-sea counterparts showed phytoplankton and zooplankton sterols. In contrast, echinoids, a class of echinoderms, the most complex phylum along with hemichordates and chordates (deuterostomes), did not show significant differences in their sterol profile, suggesting that cholesterol synthesis is present in deuterostomes other than chordates."
Multidisciplinary Digital Publishing Institute
2020
Artículo
Marine Drugs
Inglés
Carreón-Palau, L.; Özdemir, N.Ş.; Parrish, C.C.; Parzanini, C. Sterol Composition of Sponges, Cnidarians, Arthropods, Mollusks, and Echinoderms from the Deep Northwest Atlantic: A Comparison with Shallow Coastal Gulf of Mexico. Mar. Drugs 2020, 18, 598. https://doi.org/10.3390/md18120598
ZOOLOGÍA MARINA
Versión publicada
publishedVersion - Versión publicada
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