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Document Type

Research

Keywords

Arabidopsis thaliana, plant mutants, auxin, phytohormone, plant development

Abstract

In order to identify genes involved in auxin action we have isolated a number of mutants of Arabidopsis thaliana which are resistant co exogenous application of either indole-3-acetic acid or 2, 4-dichlorophenoxyacecic acid. One of the genes identified in chis way is the Axr1 gene. Recessive mutations in this gene confer resistance co auxin as well as a number of morphological defects. In this report we describe the isolation of at least two new axr1 alleles. In addition, we show that the axr1 mutation affects gravitropic growth of the root, auxin-induced ethylene biosynthesis and growth in tissue culture. Our results indicate chat the axr1 mutation is expressed in most tissues of the plant.

Publication Date

June 1991

Journal Title

Journal of the Iowa Academy of Science

Volume

98

Issue

2

First Page

68

Last Page

71

Copyright

© Copyright 1991 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf