title: Potent enantioselective auxin: indole-3-succinic acid.
abstract: Low levels of synthetic auxins are used as root growth promoters for a wide variety of botanicals. When properly used, they can produce earlier and more prolific root growth. Indole-3-succinic acid (ISA) is a chiral compound that can be synthesized as a racemate. Its enantiomers were resolved by both chromatography and diastereomeric crystallization. The absolute configuration of each enantiomer was determined by X-ray crystallography and then tested for auxin activity. The relative effectiveness of the ISA enantiomers was determined and compared to the achiral synthetic auxin indole-3-butyric acid and to the natural auxin indole-3-acetic acid.
authors.affiliation: Hoya/NM Schools Chemobile, 2017 Calle Lejano, Santa Fe, New Mexico 87501-8745, USA.
authors.forename: Daniel W
authors.initials: DW
authors.lastname: Armstrong
authors.forename: Yan-Song
authors.initials: YS
authors.lastname: Liu
authors.forename: Lingfeng
authors.initials: L
authors.lastname: He
authors.forename: K Helen
authors.initials: KH
authors.lastname: Ekborg-Ott
authors.forename: Charles L
authors.initials: CL
authors.lastname: Barnes
authors.forename: Charles F
authors.initials: CF
authors.lastname: Hammer
mesh_terms: D002851:Chromatography, High Pressure Liquid; D007210:Indoleacetic Acids / Q000032:analysis* / Q000494:pharmacology; D010937:Plant Growth Regulators / Q000032:analysis* / Q000494:pharmacology; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development; D013386:Succinates / Q000032:analysis*
chemical_list: D007210:Indoleacetic Acids; D010937:Plant Growth Regulators; D013386:Succinates