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Pyrolysis mass spectrometry: a fresh approach to old problems in brown algal systematics?

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Abstract

Pyrolysis mass spectrometry (PyMS) has been tested on five freeze-dried cultures of ectocarpoid algae and on live tissue from three field populations of Fucus species. The technique enabled discrimination of Baltic and Irish Sea isolates of Pilayella littoralis. The results were in agreement with the view that P. littoralis and Hincksia ovata may be considered members of a single family (Ectocarpaceae) and support the location of Elachista fucicola in the Elachistaceae. Microspongium globosum was least similar to the other isolates and, on present evidence, should be located in another higher taxon (Myrionemataceae?). Baltic F. vesiculosus could be distinguished from conspecific plants from the Irish Sea, but the technique failed to separate clearly Irish Sea F. serratus and F. vesiculosus. This anomalous result is considered a probable consequence of introgression occurring at a shore level where the two species coexist. It is concluded that PyMS has considerable potential in the study of brown algal systematics.

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Communicated by J. Mauchline, Oban

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Russell, G. Pyrolysis mass spectrometry: a fresh approach to old problems in brown algal systematics?. Marine Biology 123, 153–157 (1995). https://doi.org/10.1007/BF00350334

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  • DOI: https://doi.org/10.1007/BF00350334

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