HY5 regulates nitrite reductase 1 (NIR1) and ammonium transporter1;2   (AMT1;2) in Arabidopsis seedlings

doi:10.1016/j.plantsci.2015.05.004

CORC > 北京大学 > 生命科学学院

	HY5 regulates nitrite reductase 1 (NIR1) and ammonium transporter1;2 (AMT1;2) in Arabidopsis seedlings
	Huang, Lifen ; Zhang, Hongcheng ; Zhang, Huiyong ; Deng, Xing Wang ; Wei, Ning
刊名	PLANT SCIENCE
	2015
关键词	HY5 Nitrite reductase NIR1 AMT1 2 Light regulation Nitrogen metabolism Root development POSTTRANSCRIPTIONAL REGULATION SIGNALING PATHWAYS NITRATE REDUCTASE GENE-EXPRESSION HIGHER-PLANTS LIGHT CONTROL BZIP PROTEIN NITROGEN TRANSCRIPTION RESPONSES
DOI	10.1016/j.plantsci.2015.05.004
英文摘要	HY5 (Long Hypocotyles 5) is a key transcription factor in Arabidopsis thaliana that has a pivotal role in seedling development. Soil nitrogen is an essential macronutrient, and its uptake, assimilation and metabolism are influenced by nutrient availability and by lights. To understand the role of HY5 in nitrogen assimilation pathways, we examined the phenotype as well as the expression of selected nitrogen assimilation-related genes in hy5 mutant grown under various nitrogen limiting and nitrogen sufficient conditions, or different light conditions. We report that HY5 positively regulates nitrite reductase gene NIR1 and negatively regulates the ammonium transporter gene AMT1;2 under all nitrogen and light conditions tested, while it affects several other genes in a nitrogen supply-dependent manner. HY5 is not required for light induction of NIR1, AMT1:2 and NIA genes, but it is necessary for high level expression of NIR1 and NIA under optimal nutrient and light conditions. In addition, nitrogen deficiency exacerbates the abnormal root system of hy5. Together, our results suggest that HY5 exhibits the growth-promoting activity only when sufficient nutrients, including lights, are provided, and that HY5 has a complex involvement in nitrogen acquisition and metabolism in Arabidopsis seedlings. (C) 2015 The Authors. Published by Elsevier Ireland Ltd.; National Natural Science Foundation of China [31201154]; Natural Science Foundation of Jiangsu Province [BK2009187]; Priority Academic Program Development of Jiangsu Higher Education Institutions, National Institute of Health (US) grant [2R01GM047850-23A1]; Agriculture and Food Research Initiative competitive grant of the USDA National Institute of Food and Agriculture (US) [2011-67013-30125]; SCI(E); PubMed; ARTICLE; hczhang@yzu.edu.cn; ning.wei@yale.edu; 330-339; 238
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/416813]
专题	生命科学学院
推荐引用方式 GB/T 7714	Huang, Lifen,Zhang, Hongcheng,Zhang, Huiyong,et al. HY5 regulates nitrite reductase 1 (NIR1) and ammonium transporter1;2 (AMT1;2) in Arabidopsis seedlings[J]. PLANT SCIENCE,2015.
APA	Huang, Lifen,Zhang, Hongcheng,Zhang, Huiyong,Deng, Xing Wang,&Wei, Ning.(2015).HY5 regulates nitrite reductase 1 (NIR1) and ammonium transporter1;2 (AMT1;2) in Arabidopsis seedlings.PLANT SCIENCE.
MLA	Huang, Lifen,et al."HY5 regulates nitrite reductase 1 (NIR1) and ammonium transporter1;2 (AMT1;2) in Arabidopsis seedlings".PLANT SCIENCE (2015).