2001 Fiscal Year Final Research Report Summary
Functional analysis of KN1-type homeodomain protein
| Project/Area Number |
12440227
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
植物生理
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| Research Institution | Nagoya University |
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Principal Investigator |
MATSUOKA Makoto Bioscience Center Nagova University Professor, 生物分子応答研究センター, 教授 (00270992)
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| Project Period (FY) |
2000 – 2001
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| Keywords | homeobox gene / rice / tobacco / gibberellin (GA) / transgenic plant |
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| Research Abstract |
KNOX horaeodomain proteins are encoded by knottedl-like homeobox (knox) genes that constitute a gene family in plants. Similar to the animal homeodomain proteins, KNOX proteins are consider ed to be key transcriptional regulators that control the expression of genes involved in plant organogenesis at the shoot apical meristemi Therefore, in order to understand the developmental processes in plants, it is important to elucidate the molecular mechanisms underlying KNOX pro tein regulation of gene expression. In thip study, we investigated the structural features and the mechanisms for expression of KNOX proteins. Through the experiments with transgenic plants, a KNOX protein, OSH15, directly interacts with the specific sequence of intron 1 in the gene e needing GA biosynthetic enzyme, GAC20 oxidase and suppresses its expression.
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