Changes in the Level of [C]Indole-3-Acetic Acid and [C]Indoleacetylaspartic Acid during Root Formation in Mung Bean Cuttings

J G Norcini; C W Heuser

doi:10.1104/pp.86.4.1236

Changes in the Level of [C]Indole-3-Acetic Acid and [C]Indoleacetylaspartic Acid during Root Formation in Mung Bean Cuttings

Plant Physiol. 1988 Apr;86(4):1236-9. doi: 10.1104/pp.86.4.1236.

Authors

J G Norcini¹, C W Heuser

Affiliation

¹ Department of Horticulture, 103 Tyson Building, The Pennsylvania State University, University Park, Pennsylvania 16802.

Abstract

Changes in the levels of [(14)C]indole-3-acetic acid (IAA) and [(14)C]indole-acetylaspartic acid (IAAsp) were examined during adventitious root formation in mung bean (Vigna radiata [L.] R. Wilcz. ;Berken') stem cuttings. IAAsp was identified by GC-MS as the primary conjugate in IAA-treated cuttings. During root formation in IAA-treated cuttings, the level of [(14)C]IAAsp increased rapidly the first day and then declined; [(14)C]IAA was rapidly metabolized and not detected after 12 hours.