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- Title
Indole-3-acetic acid biosynthesis in Aciculosporium take, a causal agent of witches' broom of bamboo.
- Authors
Tanaka, Eiji; Tanaka, Chihiro; Ishihara, Atsushi; Kuwahara, Yasumasa; Tsuda, Mitsuya
- Abstract
Aciculosporium take (Ascomycota; Clavicipitaceae) is a causal agent of witches' broom of bamboo plants. The symptoms of this disease are believed to be induced by plant hormones, particularly auxins. Indole-3-acetic acid (IAA) was identified in cultures of this fungus in an l-tryptophan-supplemented liquid medium. IAA production was confirmed on 30 isolates of A. take from various hosts and locations at levels up to 1 mg/l. The biosynthetic pathway of IAA in A. take culture was examined by analyzing intermediate products and by feeding experiments. The results showed that the indole-3-pyruvic acid pathway (l-tryptophan → indole-3-pyruvic acid → indole acetaldehyde → IAA) was the dominant pathway in A. take.
- Subjects
CLAVICIPITACEAE; CLAVICIPITALES; BALANSIA; ACETIC acid; BIOSYNTHESIS
- Publication
Journal of General Plant Pathology, 2003, Vol 69, Issue 1, p1
- ISSN
1345-2630
- Publication type
Article
- DOI
10.1007/s10327-002-0002-2