Open Access. Powered by Scholars. Published by Universities.®

Cell Biology Commons

Open Access. Powered by Scholars. Published by Universities.®

1991

Auxin

Articles 1 - 1 of 1

Full-Text Articles in Cell Biology

The Electrical Response Of Maize To Auxin, Hubert Felle, Winfried Peters, Klaus Palme May 1991

The Electrical Response Of Maize To Auxin, Hubert Felle, Winfried Peters, Klaus Palme

Winfried S. Peters

The electrical response of Zea mays coleoptiles and suspension cultured cells to several growth-promoting auxins (IAA, IBA, 2,4-D, 2,4,5-T, 1-NAA) and some of their structural analogues (2,3-D, 2-NAA) has been tested. In coleoptiles two typical electrical responses to IAA are observed: an immediate rapid depolarization, and a hyperpolarization following 7–10 minutes after the first external addition of IAA. Of the other tested compounds only 1-NAA significantly depolarized the cells, whereas all auxins as well as the analogues evoked delayed hyperpolarizations. In contrast, the suspension cells were not hyperpolarized by any of the tested compounds, but ...