Studies on the antimicrobial substances of sponges. VI. Structures of two antibacterial substances isolated from the marine sponge Dysidea herbacea.

Sharma, Gurdial M.; Vig, B.

doi:10.1016/s0040-4039(01)84729-8

Cited by 81 publications

(59 citation statements)

References 4 publications

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“…According to Vetter (2006), this implies that CS delphinids, such as Atlantic spotted dolphins, would be receiving MeO-BDEs predominantly from sponges, or associated organisms. MeO-PBDEs have been isolated from sponges of the genus Dysidea (Sharma and Vig, 1972) and the presence of these organisms has already been reported in the "Região dos Lagos" area (Oigman-Pszczol et al, 2004), in Rio de Janeiro state (Fig. 1), a region strongly influenced by the upwelling phenomenon (Costa and Fernandes, 1993).…”

Section: Meo-pbdes (2′-meo-bde 68 and 6-meo-bde 47)mentioning

confidence: 93%

Anthropogenic and naturally-produced organobrominated compounds in marine mammals from Brazil

Dorneles

Lailson‐Brito

Dirtu

et al. 2010

Environment International

106

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Liver samples from 51 cetaceans, comprising 10 species, stranded between 1994 and 2006 in a highly industrialized and urbanized region in Southeast Brazil, were analyzed for polybrominated diphenyl ethers (PBDEs) and methoxylated-PBDEs (MeO-PBDEs). A concentration range of PBDEs (3-5960 ng/g lw) similar to that observed in Northern Hemisphere dolphins was found. MeO-PBDE concentrations in continental shelf (CS) dolphins from Brazil are among the highest detected to date in cetaceans (up to 250 µg/g lw). Higher ΣMeO-PBDE concentrations were measured in CS and oceanic dolphins than in estuarine dolphins. The ΣPBDE/ΣMeO-PBDE ratio varied significantly ranging from a mean value of 7.12 to 0.08 and 0.01 for estuarine, CS and oceanic species, respectively. A positive correlation was observed between ΣPBDE and year of stranding of male estuarine dolphins (Sotalia guianensis), which suggests temporal variation in the exposure. Placental transfer of organobrominated compounds was also evidenced in S. guianensis.

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Section: Meo-pbdes (2′-meo-bde 68 and 6-meo-bde 47)mentioning

confidence: 93%

Anthropogenic and naturally-produced organobrominated compounds in marine mammals from Brazil

Dorneles

Lailson‐Brito

Dirtu

et al. 2010

Environment International

106

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“…Dysidea sponges have long been known as a prolifi c source of bioactive natural products (Sharma and Vig, 1972). Representative classes of secondary metabolites isolated from Dysidea sponges include several classes of terpenes, modifi ed peptides and diketopiperazines with uncommon amino acids, bromodiphenyl ethers, and, less frequently, alkaloids.…”

Section: Marine Spongesmentioning

confidence: 99%

Antibiotic, cytotoxic and enzyme inhibitory activity of crude extracts from Brazilian marine invertebrates

Seleghim¹,

Lira²,

Kossuga³

et al. 2007

Rev. bras. farmacogn.

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“…The sponge genus Dysidea has been the source of diverse organic metabolites, which have included bromophenols [6] and thiazole derivatives [7] in addition to numerous sesquiterpenoids [8]. Although the nakafuran skeletons have not previously been encountered, they can be readily related by established biogenetic transformations (Scheme 3) to known sesquiterpenes from Dysidea and from other sponges.…”

Section: 'mentioning

confidence: 99%

Two Furanosesquiterpene Marine Metabolites with Antifeedant Properties

Schulte

Scheuer

McConnell

1980

Helvetica Chimica Acta

116

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SummaryTwo new sesquiterpenoids, nakafuran-8 (1) and -9 (8), have been isolated from the marine sponge Dysidea fragilis and from its prey, the nudibranchs Hypselodoris godeffroyana and Chromodoris maridadilus. The structures were established by spectral analysis and chemical transformations. Both compounds possess antifeedant properties when assayed in the laboratory against common reef fishes, Chaetodon spp.

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Studies on the antimicrobial substances of sponges. VI. Structures of two antibacterial substances isolated from the marine sponge Dysidea herbacea.

Cited by 81 publications

References 4 publications

Anthropogenic and naturally-produced organobrominated compounds in marine mammals from Brazil

Anthropogenic and naturally-produced organobrominated compounds in marine mammals from Brazil

Antibiotic, cytotoxic and enzyme inhibitory activity of crude extracts from Brazilian marine invertebrates

Two Furanosesquiterpene Marine Metabolites with Antifeedant Properties

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