Preparation and Properties of Antibodies against Indoleacetic Acid (IAA)-C5-BSA, a Novel Ring-Coupled IAA Antigen, as Compared to Two Other Types of IAA-Specific Antibodies 1

AUTOR(ES)

Marcussen, Jan

RESUMO

Two types of indoleacetic acid (IAA) antigens have been described in the literature which show marked differences with respect to antibody specificity. In this communication an alternative antigen design is described. In the so-called IAA-C5-BSA conjugate, both the acetic acid group and the pyrrole moiety are presented free, as the covalent linkage between IAA and the carrier molecule is introduced in the benzene moiety. Antibodies were elicited in rabbits against this novel antigen. Using cross-reactivity data and the strategy of successive approximation for the measurements of auxin levels in the internodes of light-grown broad bean (Vicia faba L. cv Superfine), the three types of antibodies are compared.

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