Results 311 to 320 of about 163,025 (332)
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Sulphated polysaccharide synthesis in brown algae
Planta, 1973Histochemical and autoradiographic techniques have been used to investigate the sites of synthesis, transport and location of sulphated polysaccharides in some larger brown seaweeds.The most rapid uptake of (35)SO4 occurred when material was incubated in medium with 10(-4)M carrier sulphate, negligable uptake occurring from seawater.Autoradiography ...
L. V. Evans +2 more
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Naturwissenschaften, 1977
Female gametes of brown algae (Phaeophyta) lure their male partners into copulation by species-specific messengers. The attractants belong to a class of polyunsaturated open-chain or cyclic hydrocarbons which are biogenetically closely interconnected.
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Female gametes of brown algae (Phaeophyta) lure their male partners into copulation by species-specific messengers. The attractants belong to a class of polyunsaturated open-chain or cyclic hydrocarbons which are biogenetically closely interconnected.
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Viruslike particles in the brown alga Ectocarpus
Journal of Ultrastructure Research, 1974Mature plants of Ectocarpus fasciculatus were sectioned and the plurilocular sporangia of some plants were found to contain polyhedral viruslike particles. The particles are ca. 170 nm in diameter, possessing both a shell and core, and are confined to the nuclear regions of the developing spores.
S.B. Clitheroe, L.V. Evans
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Polysaccharides of brown algae
Chemistry of Natural Compounds, 1970A sulfated peptidoglucuronoglycan, sargassan, has been isolated from the brown algaS. pallidum. The carbohydrate chain of this substance consists of D-galactose, D-mannose, D-xylose, L-fucose, and D-glycuronic acid residues. Some minor monosaccharide components may possibly be present in it. The peptides consist of 16 common amino acids.
V. A. Khomenko +2 more
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Tetraprenyltoluquinols from the brown alga Cystoseira stricta
Phytochemistry, 1987Abstract Four novel metabolites of mixed biogenesis have been isolated from the brown alga Cystoseira stricta and their structures determined by chemical and spectral methods.
V. Amico +4 more
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Brown Algae (Fucoxanthin) Against Cancer
2021Fucoxanthin is recognized well all over the world due to its beneficial health effects. It is widely available in nature as a carotenoid and accounts for more than 10% of total carotenoids production in the world. Since, it disguises the green chlorophyll a and c therefore; it gives yellow to brown color to diatoms and seaweed (Brown macroalgae).
U. Younas +3 more
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Tetraprenyltoluquinols from the brown alga Cystoseira jabukae
Phytochemistry, 1985The chloroform extract of the brown alga Cystoseira jabukae afforded two new tetraprenyltoluquinols and two tetraprenyltoluquinones. The structures were determined by spectral analysis and chemical correlations. The quinones are possibly artifacts formed by oxidation of the corresponding quinols in the isolation procedure. © 1985.
Amico Vincenzo +3 more
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Fucoidans — sulfated polysaccharides of brown algae
Russian Chemical Reviews, 2009AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Anatolii I. Usov, Maria I. Bilan
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Sex Attractant in a Brown Alga: Chemical Structure
Science, 1971The male-attracting substance produced by the female gametes of the marine brown alga Ectocarpus siliculosus was identified as all- cis -l-(cycloheptadien-2′,5′-yl)-butene-1.
M. Donike +3 more
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