論文

2014年9月

Identification of a NAC transcription factor, EPHEMERAL1, that controls petal senescence in Japanese morning glory

PLANT JOURNAL
  • Kenichi Shibuya
  • ,
  • Keiichi Shimizu
  • ,
  • Tomoko Niki
  • ,
  • Kazuo Ichimura

79
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
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
  • 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

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