Potential chemical defenses against diatom fouling in Antarctic macroalgae
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Charles D. Amsler
Abstract
Crude extracts of Antarctic macroalgae were examined for toxicity to model strains of sympatric diatoms that could potentially foul them in nature. This is an initial step in determining the potential for ecologically relevant macroalgal defenses against fouling. Extracts of two species collected from McMurdo Sound were toxic to diatoms at or below concentrations originally present in the macroalgal thalli (the “natural concentration”). At least one extract type of all 22 western Antarctic Peninsula macroalgae was toxic at three-times the natural concentration and at least one extract type in 15 of these species was toxic at the natural concentration.
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©2005 by Walter de Gruyter Berlin New York
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Artikel in diesem Heft
- Optimum conditions for cultivation of the Trailliella phase of Bonnemaisonia hamifera Hariot (Bonnemaisoniales, Rhodophyta), a candidate species for secondary metabolite production
- Seasonal variation in vegetative growth and production of the endemic Japanese seagrass Zostera asiatica: a comparison with sympatric Zostera marina
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- Protoperidinium Bergh (Dinoflagellata) in the southeastern Mexican Pacific Ocean: part I
- Membrane organisation and dynamics in the marine diatom Coscinodiscus wailesii (Bacillariophyceae)
- Fungi on Juncus roemerianus. 17. New ascomycetes and the hyphomycete genus Kolletes gen. nov.
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- Halophilic black yeasts colonize wood immersed in hypersaline water
- Biological oceanography