Results 251 to 260 of about 1,250,539 (300)
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Biochemical Systematics and Ecology, 1982
Abstract The 42 identified carotenoids isolated from 36 different marine spontes may, from structural considerations, be divided into four groups; (a) native phytoplankton-type carotenoids; (b) intact carotenoids of possible zooplankton origin, 9c) intact carotenoids of probable bacterial of fungal origin; and (d) sponge metabolized carotenoids ...
Synnøve Liaaen-Jensen +4 more
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Abstract The 42 identified carotenoids isolated from 36 different marine spontes may, from structural considerations, be divided into four groups; (a) native phytoplankton-type carotenoids; (b) intact carotenoids of possible zooplankton origin, 9c) intact carotenoids of probable bacterial of fungal origin; and (d) sponge metabolized carotenoids ...
Synnøve Liaaen-Jensen +4 more
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Metabolites of the marine sponge
Tetrahedron Letters, 1980Abstract The major constituent of Plakortis zygompha was (Z)-7-methyl-4-octen-3-one 1 , a highly volatile, sweet-smelling oil. The sponge also contained several derivatives of 3-hydroxy-4-hydroxymethyl-4-pentenoic acid.
D.John Faulkner, B.N. Ravi
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2015
The sponge is one of the oldest multicellular invertebrates in the world. Because of its special pore canal structure and characteristics of filter feeding, a large amount of microorganisms adhere to it. After hundreds of thousands of years’ evolution, they form a kind of symbiosis relationship.
Valliappan Karuppiah, Zhiyong Li
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The sponge is one of the oldest multicellular invertebrates in the world. Because of its special pore canal structure and characteristics of filter feeding, a large amount of microorganisms adhere to it. After hundreds of thousands of years’ evolution, they form a kind of symbiosis relationship.
Valliappan Karuppiah, Zhiyong Li
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Producing drugs from marine sponges
Biotechnology Advances, 2003Marine sponges are potential sources of many unique metabolites, including cytotoxic and anticancer compounds. Natural sponge populations are insufficient or inaccessible for producing commercial quantities of metabolites of interest. This review focuses on methods of producing sponge biomass to overcome supply limitations.
El Hassan, Belarbi +4 more
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Ecological speciation in a Caribbean marine sponge
Molecular Phylogenetics and Evolution, 2006This is a pre-print from the publisher. No page numbers are provided. ; We are most grateful to M.A. Becerro for assisting in the sample collection. We thank V. Paul, the staV at the Smithsonian Marine Station at Fort Pierce and the Caribbean Coral Reef Ecosystem Program (CCRE) for providing the facilities needed to perform the study.
Duran, S., Rützler, Klaus
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Genomic insights into the marine sponge microbiome
Nature Reviews Microbiology, 2012Marine sponges (phylum Porifera) often contain dense and diverse microbial communities, which can constitute up to 35% of the sponge biomass. The genome of one sponge, Amphimedon queenslandica, was recently sequenced, and this has provided new insights into the origins of animal evolution.
Hentschel, Ute +3 more
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Anticancer agents from marine sponges
Journal of Asian Natural Products Research, 2014Marine sponges are currently one of the richest sources of anticancer active compounds found in the marine ecosystems. More than 5300 different known metabolites are from sponges and their associated microorganisms. To survive in the complicated marine environment, most of the sponge species have evolved chemical means to defend against predation. Such
Jianjun, Ye +3 more
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1957
The sponges constitute the phylum Porifera. The cells of sponges are capable of independent existence, as though they were Protozoa, for as much as two to ten days. That they are not Protozoa is demonstrated by their incapability of indefinite independent existence, and by the fact that their organization comprises two or more types of specialized ...
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The sponges constitute the phylum Porifera. The cells of sponges are capable of independent existence, as though they were Protozoa, for as much as two to ten days. That they are not Protozoa is demonstrated by their incapability of indefinite independent existence, and by the fact that their organization comprises two or more types of specialized ...
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New tetrahydropyrans from a marine sponge
Tetrahedron, 1982Two new tetrahydropyrans were isolated from the sponge Haliclona sp. From chemical and spectroscopic evidence they are shown to be (1''R,2S,2''E,5R,6R)-2-(1''-bromomethyl)-2,5-dimethyl-6-(penta-2'',4''-dienyl)tetrahydropyran and (1''R,2S,5R,6R)-2-(1''-bromomethyl)-2,5-dimethyl-6-(pent-4''-enyl)-tetrahydropyran.
Capon, RJ +2 more
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Antimicrobial Activity of some Marine Sponges
Nature, 1969THE evaluation of marine plants and animals for potential use in chemotherapy poses problems of procurement of materials and of techniques of screening for significant drug activity1. We have been studying antimicrobial activity in marine sponges both from the viewpoint of marine ecology and in an effort to develop new drugs, and report on our methods ...
P R, Burkholder, K, Ruetzler
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