Freshwater Sponge Tubella variabilis Presents Richer Microbiota Than Marine Sponge Species
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چکیده
منابع مشابه
Sponge cytogenetics - mitotic chromosomes of ten species of freshwater sponge.
Porifera (sponges) are the most basal phylum of extant metazoans. To gain insight into sponge genome construction, cytogenetic analysis was performed for ten freshwater sponge species of six genera, using conventional Giemsa staining, chromosome banding, and fluorescence in-situ hybridization. The karyotypes were very similar among the ten species, exhibiting a diploid chromosome number of 2n=4...
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Two new sesterterpenoids, 1 and 2, were isolated from the sponge Luffariella variabilis. Their planar structures were characterized with spectroscopic analyses. The sole chiral center of compound 1 was elucidated as 12R by comparing observed and calculated optical rotation values. The configurations of compound 2 were determined by NMR and electronic circular dichroism (ECD) studies. Furthermor...
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Chemical investigation of the sponge Callyspongia sp. from the South China Sea afforded one new diketopiperazine, cyclo-(R-Pro-6-hydroxyl-S-Ile) (1), along with six known diketopiperazines: staphyloamide A (2), cyclo(S-Pro-S-Phe) (3), cyclo-(R-Pro-R-Phe) (4), cyclo-(S-Pro-R-Leu) (5), cyclo-(S-Pro-R-Ala) (6), cyclo(R-Tyr-R-Phe) (7), and three known tryptophan-derived alkaloids: C 2 -α-D-mannosyl...
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In continuation of our search for drug leads from Red Sea sponges we have investigated the ethyl acetate fraction of the organic extract of the Red Sea sponge Hyrtios species. Bioassay-directed fractionation of the active fraction resulted into the identification of three new alkaloids, hyrtioerectines D-F (1-3). Hyrtioerectines D-F belong to the rare marine alkaloids in which the indole and β-...
متن کامل24-O-ethylmanoalide, a manoalide-related sesterterpene from the marine sponge Luffariella cf. variabilis.
A new manoalide-related sesterterpene, 24-O-ethylmanoalide (3), was isolated from the Indian Ocean sponge Luffariella cf. variabilis, together with the known compounds manoalide (1), seco-manoalide, manoalide monoacetate and 24-O-methylmanoalide (2). The structure of compound 3 was elucidated by interpretation of its spectroscopic data.
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ژورنال
عنوان ژورنال: Frontiers in Microbiology
سال: 2019
ISSN: 1664-302X
DOI: 10.3389/fmicb.2019.02799