• S M J Anuradha

      Articles written in Proceedings – Plant Sciences

    • Distribution pattern of phenolic constituents in species ofBauhinia Linn. and its taxonomic significance

      G Nageshwar S M J Anuradha M Radhakrishnaiah L L Narayana

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      Quantified chromatographic data on the distribution pattern of phenolic constituents in 15 species ofBauhinia expressed as synthetic numerical indices and polygons indicate a close biochemical kinship among them and do not warrant the splitting of the genus, as has been done on morphologic grounds. However, the grouping of the species, based on similarity coefficients clustered successively by WPGM, does not conform to the grouping on traditional grounds.

    • Numerical chemotaxonomy ofArachis

      S M J Anuradha G Nageshwar M Radhakrishnaiah L L Narayana

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      The chemotaxonomy ofArachis has been studied with reference to the distribution pattern of different classes of secondary metabolites in general and free amino acids and phenolic constituents in particular. The chemical data are quantified to bring out the relative primitiveness/advancement of the taxa. It is found thatArachis apressipila, Arachis cardenasii andArachis hypogaea are primitive andArachis stenosperma is advanced. The chemical data are further expressed in the form of different synthetic numerical indices and depicted in polygons which point out to a fair amount of relationship among the taxa studied. From the dendrogram of cluster analysis it is evident that the genus could be divided into two infrageneric groups.

    • Chemosystematics of some species ofIndigofera

      S M J Anuradha B K Vijay Kumar M Radhakrishnaiah L L Narayana

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      The distribution pattern of phenolic constituents in 8 species ofIndigofera is studied. There is uniform occurrence ofp-coumaric,p-OH benzoic and vanillic acids and an unknown phenolic compound ‘e’ of hRf value 42/57 in all the taxa studied. There is a chemical similarity betweenIndigofera hochstetteri andIndigofera tinctoria. Indigofera dalzellii, Indigofera hirsuta, Indigofera oblongifolia andIndigofera prostrata stand out in the unique possession of certain compounds. The overlapping incidence of the constituents indicates the fairly close chemical ties among the species studied. The cluster analysis reveals that it supports earlier sub divisions of the genus to some extent.

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