Analysis of Sugar Content and Expression of Sucrose Transporter Genes (OsSUTs) in Rice Tissues in Response to a Chilling Temperature

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
本文フルテキスト

Changes in sucrose metabolism have been implicated in tissue damage found in rice plants exposed to cold. However, little is known about the effect of low temperature on sucrose transport in cold-sensitive plants such as rice. Here, we investigated the changes induced by a 12°C chilling treatment on the soluble sugar content relative to the expression of sucrose transporter genes (OsSUT1-5) in various tissues of young (6-week-old) and mature (booting stage) rice plants. Sucrose levels increased in source tissues but decreased in young panicles during the chilling treatment. Sucrose transporter genes also responded to the chilling treatment: OsSUT1 in leaf sheaths and OsSUT2 and OsSUT4 in panicles were down-regulated. Our results suggested that the sucrose translocation supported by OsSUTs in rice plants decreased during chilling treatment, assuming the involvement of OsSUT1 and OsSUT4 in phloem loading of sucrose. These changes may induce a sugar imbalance in anthers, resulting in impaired pollen development.

刊行年月日
作成者 Shinichiro TAKAHASHI Ayano MEGURO-MAOKA Midori YOSHIDA
著者キーワード cold tolerance phloem loading
公開者 Japan International Research Center for Agricultural Sciences
オンライン掲載日
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
51
2
開始ページ 137
終了ページ 146
DOI 10.6090/jarq.51.137
権利 Japan International Research Center for Agricultural Sciences
関連するリソース : J-STAGE
言語 eng

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