Taxonomic considerations

Conus Species Feeding lypes, Taxonomic Considerations... 

Haddock, E.A., Gupta, R.K., Al-Shafi, S.M.K., Layden, K., Haslam, E. and Magnolato, D. (1982) The metabolism of gallic acid and hexahydroxydiphenic acid in plants biogenetic and molecular taxonomic considerations. Phytochemistry, 21, 1049-62. 

Structural, biosynthetic, and taxonomic considerations conveniently allow for a discussion of these alkaloids under one heading. A review on chromatographic methods for analysis of these alkaloids has appeared. ... 

The differences observed at the genus, species, or strain levels are governed more by the nature of the substrates and the environmental conditions of growth than by taxonomic considerations. These differences can be selected readily by checking the species of the genus in question in Table IH Transformation by Genus. ... 

Haslam E, Haddock E A, Gupta R K, Al-Shafi S M K, Layden K, Magnolato D 1982 The metabolism of gallic and hexahydroxydiphenic acid in plants Biogenetic and molecular taxonomic considerations. Phytochemistry 21 1049-1062... 

It has been apparent for some time that variations in the sterol biosynthetic pathway and the resultant compositional differences between species provide excellent chemical characters for use in taxonomic considerations (1). Algae have no universal characteristic with respect to their sterol composition, although it is well known that nearly all algae with C-24 alkyl groups produce the 24- beta alkyl configu-uration (2,3). All algae examined are consistent with other photosynthetic plants in that they utilize the cycloartenol... 

Benthic invertebrate communities are taxonomically and trophically complex, and their abundance and species composition in a water body often vary seasonally and among years. Sediment-dwelling invertebrates can be readily sampled but considerable effort is often required to remove benthic organisms from grab samples of sediment, to determine their taxonomic composition, and to obtain sufficient sample mass of a target taxon for analysis. Sampling would not substantially affect target populations. 

Consideration of sample preparation also leads to the question of whether for some applications at least sensors would be more effectively constructed as a collection of modules each with a different function (sample preparation, transduction, detection, data collection) on a platform, large, small or miniaturised, rather than the old ideal of a small, self-contained device with intimately appressed layers which could return a rapid answer from a bucket of slime or some other spectacularly heterogeneous matrix. It is accepted that those with a taxonomic bent... 

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