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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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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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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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Polysaccharides of brown algae
Chemistry of Natural Compounds, 1970Yu. S. Ovodov, A. F. Pavlenko
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Brown Algae And Chromophyte Phylogeny
1990Abstract This chapter examines the evidence for phylogenetic relationships between brown algae (Phaeophyceae) and other chromophytes. Brown algae include the largest and most complex multicellular algal thalli, and they are widely considered as a highly evolved group of protists. They are distinguished by the possession of alginates as a
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