Axillary meristem formation in rice requires the WUSCHEL ortholog TILLERS ABSENT1open

Wakana Tanaka, Yoshihiro Ohmori, Tomokazu Ushijima, Hiroaki Matsusaka, Tomonao Matsushita, Toshihiro Kumamaru, Shigeyuki Kawano, Hiro Yuki Hirano

研究成果: ジャーナルへの寄稿記事

46 引用 (Scopus)

抄録

Axillary shoot formation is a key determinant of plant architecture. Formation of the axillary shoot is regulated by initiation of the axillary meristem or outgrowth of the axillary bud. Here, we show that rice (Oryza sativa) TILLERS ABSENT1 (TAB1; also known as Os WUS), an ortholog of Arabidopsis thaliana WUS, is required to initiate axillary meristem development. We found that formation of the axillary meristem in rice proceeds via a transient state, which we term the premeristem, characterized by the expression of OSH1, a marker of indeterminate cells in the shoot apical meristem. In the tab1-1 (wus-1) mutant, however, formation of the axillary meristem is arrested at various stages of the premeristem zone, and OSH1 expression is highly reduced. TAB1/WUS is expressed in the premeristem zone, where it shows a partially overlapping pattern with OSH1. It is likely, therefore, that TAB1 plays an important role in maintaining the premeristem zone and in promoting the formation of the axillary meristem by promoting OSH1 expression. Temporal expression patterns of WUSCHEL-RELATED HOMEOBOX4 (WOX4) indicate that WOX4 is likely to regulate meristem maintenance instead of TAB1 after establishment of the axillary meristem. Lastly, we show that the prophyll, the first leaf in the secondary axis, is formed from the premeristem zone and not from the axillary meristem.

元の言語英語
ページ(範囲)1173-1184
ページ数12
ジャーナルPlant Cell
27
発行部数4
DOI
出版物ステータス出版済み - 4 1 2015

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Meristem
meristems
rice
shoots
Oryza
shoot meristems
plant architecture
apical meristems
Arabidopsis
Oryza sativa
Arabidopsis thaliana
buds
Maintenance
mutants

All Science Journal Classification (ASJC) codes

  • Plant Science
  • Cell Biology

これを引用

Axillary meristem formation in rice requires the WUSCHEL ortholog TILLERS ABSENT1open. / Tanaka, Wakana; Ohmori, Yoshihiro; Ushijima, Tomokazu; Matsusaka, Hiroaki; Matsushita, Tomonao; Kumamaru, Toshihiro; Kawano, Shigeyuki; Hirano, Hiro Yuki.

:: Plant Cell, 巻 27, 番号 4, 01.04.2015, p. 1173-1184.

研究成果: ジャーナルへの寄稿記事

Tanaka, W, Ohmori, Y, Ushijima, T, Matsusaka, H, Matsushita, T, Kumamaru, T, Kawano, S & Hirano, HY 2015, 'Axillary meristem formation in rice requires the WUSCHEL ortholog TILLERS ABSENT1open', Plant Cell, 巻. 27, 番号 4, pp. 1173-1184. https://doi.org/10.1105/tpc.15.00074
Tanaka, Wakana ; Ohmori, Yoshihiro ; Ushijima, Tomokazu ; Matsusaka, Hiroaki ; Matsushita, Tomonao ; Kumamaru, Toshihiro ; Kawano, Shigeyuki ; Hirano, Hiro Yuki. / Axillary meristem formation in rice requires the WUSCHEL ortholog TILLERS ABSENT1open. :: Plant Cell. 2015 ; 巻 27, 番号 4. pp. 1173-1184.
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abstract = "Axillary shoot formation is a key determinant of plant architecture. Formation of the axillary shoot is regulated by initiation of the axillary meristem or outgrowth of the axillary bud. Here, we show that rice (Oryza sativa) TILLERS ABSENT1 (TAB1; also known as Os WUS), an ortholog of Arabidopsis thaliana WUS, is required to initiate axillary meristem development. We found that formation of the axillary meristem in rice proceeds via a transient state, which we term the premeristem, characterized by the expression of OSH1, a marker of indeterminate cells in the shoot apical meristem. In the tab1-1 (wus-1) mutant, however, formation of the axillary meristem is arrested at various stages of the premeristem zone, and OSH1 expression is highly reduced. TAB1/WUS is expressed in the premeristem zone, where it shows a partially overlapping pattern with OSH1. It is likely, therefore, that TAB1 plays an important role in maintaining the premeristem zone and in promoting the formation of the axillary meristem by promoting OSH1 expression. Temporal expression patterns of WUSCHEL-RELATED HOMEOBOX4 (WOX4) indicate that WOX4 is likely to regulate meristem maintenance instead of TAB1 after establishment of the axillary meristem. Lastly, we show that the prophyll, the first leaf in the secondary axis, is formed from the premeristem zone and not from the axillary meristem.",
author = "Wakana Tanaka and Yoshihiro Ohmori and Tomokazu Ushijima and Hiroaki Matsusaka and Tomonao Matsushita and Toshihiro Kumamaru and Shigeyuki Kawano and Hirano, {Hiro Yuki}",
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AU - Tanaka, Wakana

AU - Ohmori, Yoshihiro

AU - Ushijima, Tomokazu

AU - Matsusaka, Hiroaki

AU - Matsushita, Tomonao

AU - Kumamaru, Toshihiro

AU - Kawano, Shigeyuki

AU - Hirano, Hiro Yuki

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