Results 161 to 170 of about 1,726 (204)
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Strontium, Calcium and Magnesium in Brown Algae
Nature, 1967THE ion exchange properties of alginates have received some attention lately, particularly because of their potential value in connexion with therapy after strontium-90 overdoses1–3. It has been shown that alginates rich in guluronic acid residues have a greater affinity for calcium in the ion exchange reaction calcium–magnesium4 and for strontium in ...
A, Haug, O, Smidsrod
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Cytoplasmic inheritance of organelles in brown algae
Journal of Plant Research, 2010Brown algae, together with diatoms and chrysophytes, are a member of the heterokonts. They have either a characteristic life cycle of diplohaplontic alternation of gametophytic and sporophytic generations that are isomorphic or heteromorphic, or a diplontic life cycle.
Taizo, Motomura +2 more
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Economic Botany, 1954
The enormous and self-replenishing supplies—perhaps 200 or 300 million tons—of these seaweeds in the oceans of the world have been commercially exploited so far primarily in the production of alginic acid, but the other carbohydrates, proteins, lipids, vitamins, enzymes and antibacterial substances in them and discussed here may hold even greater ...
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The enormous and self-replenishing supplies—perhaps 200 or 300 million tons—of these seaweeds in the oceans of the world have been commercially exploited so far primarily in the production of alginic acid, but the other carbohydrates, proteins, lipids, vitamins, enzymes and antibacterial substances in them and discussed here may hold even greater ...
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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, M, Simpson, M E, Callow
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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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Chromosomes of the brown algae
Phycologia, 1996Abstract Investigations concerning brown algal chromosomes have contributed to our understanding of the reproductive biology of brown algae. Techniques used in observing chromosomes in the light microscope are briefly summarized. Mitosis and meiosis are discussed, with an emphasis on aspects that are distinctive in the brown algae.
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Sexual recognition and fertilization in brown algae
Journal of Cell Science, 1985ABSTRACT Fertilization in the brown marine algae known as fucoids, is oogamous. The naked egg cell (80 qm diam.) is fertilized by small biflagellate spermatozoids and both monoecious and dioecious species are found. Fertilization is highly species-specific and this appears to be controlled during plasmogamy.
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Viruses Infecting Marine Brown Algae
Virus Genes, 1998Viruses infecting algal hosts possess large double-stranded DNA as genomes. We have recently identified a family of viruses specific for filamentous brown algae. In contrast to the better known Chlorella viruses with their lytic infection cycle, marine brown algal viruses latently occur in their host cells and are induced to multiply in response to a ...
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Brown algae and their multiple applications as functional ingredient in food production
Food Research International, 2023Maria Clerici
exaly