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The dependence of auxin transport on cell length
Author(s) -
WANGERMANN E.,
MITCHISON G. J.
Publication year - 1981
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/j.1365-3040.1981.tb01034.x
Subject(s) - coleoptile , auxin , diffusion , polar , biophysics , chemistry , physics , botany , biology , thermodynamics , biochemistry , gene , astronomy
. Velocities of transport of IAA through long‐celled (dark‐grown) and short‐celled (light‐grown) coleoptile segments have been measured by the intercept method. Transport is faster through short‐celled segments, and the difference is highly significant. Calculations show that this finding is consistent with a model for polar auxin transport which postulates a pumping mechanism between cells and movement through the cell by diffusion.