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The distribution of the receptor for 1‐N‐naphthylphthalamic acid in different tissues of maize
Author(s) -
Katekar Gerard F.,
Geissler Art E.
Publication year - 1989
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1989.tb05629.x
Subject(s) - coleoptile , receptor , zea mays , biochemistry , membrane , chemistry , microbiology and biotechnology , biology , biophysics , agronomy
Phytotropins with a range of activity, chemistry and stereochemistry were used to detect the presence of the receptor for 1‐N‐naphthylphthalamic acid (NPA) in leaves, stems, roots and coleoptiles in Zea mays L. cv PX‐80 through their ability to bind to the recognition site(s) on the receptor. Their ability to bind to membrane preparations from each of the tissues was found to be very similar. It is concluded that NPA receptors with similar recognition characteristics exist throughout the plant. It is suggested that the data are further evidence in favour of the proposition that NPA receptors are physiologically significant.