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Reference Detail
| Reference | ||
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| Author | Yoshikawa T., Ito M., Sumikura T., Nakayama A., Nishimura T., Kitano H., Yamaguchi I., Koshiba T., Hibara K.I., Nagato Y., Itoh J.I. | |
| Title | The rice FISH BONE gene encodes a tryptophan aminotransferase, which affects pleiotropic auxin-related processes. | |
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Abstract: Auxin is a fundamental plant hormone and its localization within organs plays pivotal roles in plant growth and development. Analysis of many Arabidopsis mutants defective in auxin biosynthesis revealed that the indole-3-pyruvic acid (IPA) pathway, catalyzed by the tryptophan aminotransferase OF ARABIDOPSIS (TAA) and YUCCA (YUC) families, is the major biosynthetic pathway of indole-3-acetic acid (IAA). In contrast, little is known about the molecular mechanisms of auxin biosynthesis in rice. In this study, we identified a auxin-related rice mutant, FISH BONE (FIB). FIB encodes an ortholog of TAA genes and loss of FIB function resulted in pleiotropic abnormal phenotypes, such as small leaves with large lamina joint angles, abnormal vascular development, small panicles, abnormal organ identity and defects in root development, together with a reduction in internal IAA levels. Moreover, we found that auxin sensitivity and polar transport activity were altered in the FIB mutant. From these results, we suggest that FIB plays a pivotal role in IAA biosynthesis in rice and that auxin biosynthesis, transport and sensitivity are closely interrelated. This article is protected by copyright. All rights reserved. |
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| Journal | Plant J. | |
| Country | Japan | |
| Volume | 78(6) | |
| Pages | 927-36 | |
| Year | 2014 | |
| PubMed ID | 24654985 | |
| PubMed Central ID | - | |
| DOI | 10.1111/tpj.12517 | |
| URL | - | |
| Relation | ||
| Gene | FIB TAR1 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
