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  • 1
    Electronic Resource
    Electronic Resource
    Hair morphology and the relationships of species inSolanum sect.Basarthrum (1982)
    Springer
    Plant systematics and evolution 139 (1982), S. 229-256 
    Details
    ISSN: 1615-6110
    Keywords: Solanaceae ; Solanum ; Lycopersicon ; Potatoes ; tomato ; “pepino” ; phylogeny ; pubescence ; indumentum ; anatomy of hairs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The usefulness of features of leaf hairs in distinguishing subgenera and sections is well documented in bothRhododendron andSolanum. In this analysis of the taxa ofSolanum sect.Basarthrum (23 species), and of a sample of closely related taxa from sect.Petota (22 species), it is shown that such features serve to delineate subsectional groups such as series and some species as well. SectionBasarthrum has an unexpected diversity of hair types. Although this group has been characterized by 2-celled “bayonet hairs”, more than one half of the taxa in the section bear multicellular “finger hairs”, and 3 species also possess branched hairs. Thus, major rearrangements of the species previously assigned to sect.Basarthrum are indicated or supported by pubescence features. The taxa studied from seriesEtuberosa andJuglandifolia (both of sect.Petota) show hair types that a) are relatively primitive for the section, and b) show linkage between sects.Petota andBasarthrum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00989327
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  • 2
    Electronic Resource
    Electronic Resource
    Papain-induced Oligomerization of α-Amino Acid Esters (1979)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 62 (1979), S. 488-494 
    Details
    ISSN: 0018-019X
    Keywords: papain ; enzymatic polymerization ; leucine ; methionine ; phenylalanine ; tyrosine ; tryptophan ; oligopeptides ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Oligomers of leucine, methionine, phenylalanine, and tyrosine were prepared enzymatically (using papain) from the respective methyl esters, with yields ranging from 51-96%. The effect of pH, buffer and salt concentration, and addition of alcohol on the oligomerization of leucine methyl ester was examined. The limits and potentialities of the enzymatic reaction as a method for obtaining monodisperse oligomers are discussed.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19790620214
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