Modulation of the number of membrane bound auxin binding sites during the growth of batch cultured tobacco nicotiana tabacum cultivar white burley cells

Vreugdenhil, D.; Burgers, A.; Harkes, P.A.A.; Libbenga, K.R.

Planta (Heidelberg) 152(5): 415-419

1981


ISSN/ISBN: 0032-0935
Accession: 005915918

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Abstract
The modulation of the number of membrane-bound naphthaleneacetic acid(NAA)-binding sites during the growth cycle of tobacco cells in batch culture was studied. Both cell number and specific NAA-binding increased exponentially, but at different rates and for different periods. This caused a characteristic modulation of the number of binding sites per cell during the growth cycle. During the 1st day of the lag phase this number decreased; in the exponential phase it rose markedly, and in the stationary phase it was constant.