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- Matsuoka Keita
- Department of Biosciences, Teikyo University
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- Haniyeh Bidadi
- Faculty of Life and Environmental Sciences, University of Tsukuba
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- Asahina Masashi
- Department of Biosciences, Teikyo University
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- Satoh Shinobu
- Faculty of Life and Environmental Sciences, University of Tsukuba
Bibliographic Information
- Other Title
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- 地上部ジベレリンによる根の機能制御
- チジョウブ ジベレリン ニ ヨル ネ ノ キノウ セイギョ
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Abstract
<p>In plants, long-distance signaling acts as one of the mechanisms for adaptation to environmental change and growth regulation to maintain a balance between distanced organs. Many studies suggest that gibberellins (GAs) behave as long-distance transmitters. GA precursors can move through vascular system. This review focuses on the functions of GA signaling between shoot and root. Root-expressed genes which responding to shoot-derived GAs were identified by microarray analysis in Arabidopsis. Two GA-responding genes (1) IRT1 (Iron Regulated-Transporter 1) and (2) CLE6 (CLAVATA/ESR-RELATED 6) have been identified. IRT1 plays a key role in Fe absorption into root cells from soil. GA promotes the gene expression of IRT1 and Fe absorption in root. GAs would be signal transmitters for the acquirement of essential nutrients such as Fe. CLE6 belongs to peptide hormones. Expression of CLE6 in root is found in vascular tissue and endodermis and promoted by shoot-derived GAs. Phenotype of GA deficient mutant shows partial recovery recovered by grafting with CLE6 overexpression transgenic line. CLE6 is up-regulated by GAs and acts as long-distance signal for organ growth. In conclusion, mentioned GA functions are considered essential for information exchange between shoot and root.</p>
Journal
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- Regulation of Plant Growth & Development
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Regulation of Plant Growth & Development 51 (2), 116-122, 2016
The Japanese Society for Chemical Regulation of Plants
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Details 詳細情報について
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- CRID
- 1390282680062696064
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- NII Article ID
- 130005635505
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- NII Book ID
- AA11550064
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- ISSN
- 21896305
- 13465406
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- NDL BIB ID
- 027823826
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed