2014年9月
Identification of a NAC transcription factor, EPHEMERAL1, that controls petal senescence in Japanese morning glory
PLANT JOURNAL
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- ,
- ,
- 巻
- 79
- 号
- 6
- 開始ページ
- 1044
- 終了ページ
- 1051
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1111/tpj.12605
- 出版者・発行元
- WILEY-BLACKWELL
In flowering plants, floral longevity is species-specific and is closely linked to reproductive strategy; petal senescence, a type of programmed cell death (PCD), is a highly regulated developmental process. However, little is known about regulatory pathways for cell death in petal senescence, which is developmentally controlled in an age-dependent manner. Here, we show that a NAC transcription factor, designated EPHEMERAL1 (EPH1), positively regulates PCD during petal senescence in the ephemeral flowers of Japanese morning glory (Ipomoea nil). EPH1 expression is induced independently of ethylene signaling, and suppression of EPH1 resulted in Japanese morning glory flowers that are in bloom until the second day. The suppressed expression of EPH1 delays progression of PCD, possibly through suppression of the expression of PCD-related genes, including genes for plant caspase and autophagy in the petals. Our data further suggest that EPH1 is involved in the regulation of ethylene-accelerated petal senescence. In this study, we identified a key regulator of PCD in petal senescence, which will facilitate further elucidation of the regulatory network of petal senescence.
- リンク情報
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- DOI
- https://doi.org/10.1111/tpj.12605
- J-GLOBAL
- https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201402211186672464
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/24961791
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000341515600013&DestApp=WOS_CPL
- URL
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84907018184&origin=inward
- ID情報
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- DOI : 10.1111/tpj.12605
- ISSN : 0960-7412
- eISSN : 1365-313X
- J-Global ID : 201402211186672464
- PubMed ID : 24961791
- SCOPUS ID : 84907018184
- Web of Science ID : WOS:000341515600013