Title: The Hormonal Characterization and Mapping of a New Jasmonate Hypersensitive Mutant ( jah2 ) in Arabidopsis thaliana
Abstract: Jasmonic acid (JA) is a phytohormone that plays important roles in growth, development, and defense in plants. Although many functions and mechanisms of JA are known, some pathways are still unclear. One of the simplest approaches to understanding JA signal transduction is isolating mutants that respond abnormally to JA. From the defects of such mutants we can determine the regulatory functions of JA . jasmonate hypersensitive 2 (jah2) is a JA hypersensitive mutant. JA normally inhibits the root growth of plants and the jah2 mutant has an even shorter root compared with wild-type Col-0 (wild type) under the same JA concentration. Examination of the sensitivity of jah2 showed that jah2 and WT have a 100-fold JA-sensitivity difference. While jah2 was hypersensitive to JA, it was not hypersensitive to two other hormones, IAA and the precursor of ethylene, ACC. Two
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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Cited By Count: 1
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