Arabidopsis Phytochrome D Is Involved in Red Light-Induced Negative Gravitropism of Hypocotyles

doi:10.1016/S2095-3119(13)60607-3

Journal of Integrative Agriculture ›› 2014, Vol. 13 ›› Issue (8): 1634-1639.DOI: 10.1016/S2095-3119(13)60607-3

Arabidopsis Phytochrome D Is Involved in Red Light-Induced Negative Gravitropism of Hypocotyles

LIJian-ping, HOUPei, ZHENGXu, SONGMei-fang, SULiang, YANGJian-ping

1、Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China
2、Institute of Nuclear and Biotechnology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, P.R.China
3、Graduate School, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China

收稿日期:2013-05-09 出版日期:2014-08-01 发布日期:2014-08-02
通讯作者: YANG Jian-ping, Tel/Fax: +86-10-82105859, E-mail: yangjianping02@caas.cn
作者简介:LI Jian-ping, E-mail: ljp7786@126.com
基金资助:
This work was financially supported by funds from the Genetically Modified Organisms Breeding Major Projects of China (2011ZX08010-002), the National Natural Science Foundation of China (30871438 and 31170267) and the Natural Science Foundation of Xinjiang, China (2012211B49).

Arabidopsis Phytochrome D Is Involved in Red Light-Induced Negative Gravitropism of Hypocotyles

LIJian-ping , HOUPei , ZHENGXu , SONGMei-fang , SULiang , YANGJian-ping

1、Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China
2、Institute of Nuclear and Biotechnology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, P.R.China
3、Graduate School, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China

Received:2013-05-09 Online:2014-08-01 Published:2014-08-02
Contact: YANG Jian-ping, Tel/Fax: +86-10-82105859, E-mail: yangjianping02@caas.cn
About author:LI Jian-ping, E-mail: ljp7786@126.com
Supported by:
This work was financially supported by funds from the Genetically Modified Organisms Breeding Major Projects of China (2011ZX08010-002), the National Natural Science Foundation of China (30871438 and 31170267) and the Natural Science Foundation of Xinjiang, China (2012211B49).

摘要/Abstract

摘要： The phytochrome gene family, which is in Arabidopsis thaliana, consists of phytochromes A-E (phyA to phyE), regulates plant responses to ambient light environments. PhyA and phyB have been characterized in detail, but studies on phyC to phyE have reported discrepant functions. In this study, we show that phyD regulates the Arabidopsis gravitropic response by inhibiting negative gravitropism of hypocotyls under red light condition. PhyD had only a limited effect on the gravitropic response of roots in red light condition. PhyD also enhanced phyB-regulated gravitropic responses in hypocotyls. Moreover, the regulation of hypocotyl gravitropic responses by phyD was dependent upon the red light fluence rate.

关键词: phytochrome D , gravitropism , Arabidopsis thaliana

Abstract: The phytochrome gene family, which is in Arabidopsis thaliana, consists of phytochromes A-E (phyA to phyE), regulates plant responses to ambient light environments. PhyA and phyB have been characterized in detail, but studies on phyC to phyE have reported discrepant functions. In this study, we show that phyD regulates the Arabidopsis gravitropic response by inhibiting negative gravitropism of hypocotyls under red light condition. PhyD had only a limited effect on the gravitropic response of roots in red light condition. PhyD also enhanced phyB-regulated gravitropic responses in hypocotyls. Moreover, the regulation of hypocotyl gravitropic responses by phyD was dependent upon the red light fluence rate.

Key words: phytochrome D , gravitropism , Arabidopsis thaliana

LIJian-ping, HOUPei, ZHENGXu, SONGMei-fang, SULiang, YANGJian-ping. Arabidopsis Phytochrome D Is Involved in Red Light-Induced Negative Gravitropism of Hypocotyles[J]. Journal of Integrative Agriculture, 2014, 13(8): 1634-1639.

LIJian-ping , HOUPei , ZHENGXu , SONGMei-fang , SULiang , YANGJian-ping . Arabidopsis Phytochrome D Is Involved in Red Light-Induced Negative Gravitropism of Hypocotyles[J]. Journal of Integrative Agriculture, 2014, 13(8): 1634-1639.

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Arabidopsis Phytochrome D Is Involved in Red Light-Induced Negative Gravitropism of Hypocotyles

Arabidopsis Phytochrome D Is Involved in Red Light-Induced Negative Gravitropism of Hypocotyles

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