The effect of salt concentration on auxin stability in culture media.
The concentrations of indole-3-acetic acid (IAA), naphthaleneacetic acid (NAA) and 2,4-dichlorophenoxyacetic acid (2,4-D) were followed for 35 days in cell-free liquid medium containing 100, 50, or 0% Murashige-Skoog (MS) salt base. Although the concentrations of NAA or 2,4-D remained constant the level of IAA decreased to only 11% of the original concentration after 35 days in the presence of 100% MS salt base. The observed rate of IAA degradation was accelerated by the presence of MS salts.
Dunlap
J R
JR
Subtropical Agricultural Research Laboratory, United States Department of Agriculture, Agricultural Research Service, Weslaco, Texas 78596.
Kresovich
S
S
McGee
R E
RE