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	Overexpressing hrs1 confers hypersensitivity to low phosphate-elicited inhibition of primary root growth in arabidopsis thaliana
	Liu, Hong1,2; Yang, Huixia1,2; Wu, Chongming1,2; Feng, Juanjuan1,2; Liu, Xin1; Qin, Huanju1; Wang, Daowen1
刊名	Journal of integrative plant biology
	2009-04-01
卷号	51期号:4页码:382-392
关键词	Arabidopsis thaliana G2-like transcription factor Hrs1 Phosphate deficiency Root
ISSN号	1672-9072
DOI	10.1111/j.1744-7909.2009.00819.x
通讯作者	Wang, daowen(dwwang@genetics.ac.cn)
英文摘要	Phosphate (pi) deficiency causes dramatic root system architecture (rsa) changes in higher plants. here we report that overexpression of hrs1 leads to enhanced sensitivity to low pi-elicited inhibition of primary root growth in arabidopsis thaliana seedlings. bioinformatic investigations uncovered that hrs1 and its six homologs encode putative g2-like transcription factors in arabidopsis. analysis of promoter::gus reporter lines revealed that hrs1 transcripts were present mainly in the root hair region and root hair cells under pi-sufficient conditions. pi deprivation increased hrs1 expression level and expanded its expression domain. although hrs1 knockout mutant did not differ from wild type (wt) control irrespective of pi status, its overexpression lines were significantly more susceptible to low pi-elicited primary root shortening. in both wt and hrs1 overexpression seedlings, low pi-induced primary root shortening was accompanied by enhanced root hair cell differentiation, but this enhancement occurred to a greater extent in the latter genotype. collectively, our data suggest that hrs1 may be involved in the modulation of primary root and root hair growth in pi-deprived arabidopsis seedlings, and provide useful clues for further research into the function of hrs1 and its homologs and the mechanisms behind rsa changes under pi-deficient conditions.
WOS关键词	TRANSCRIPTION FACTOR ; SYSTEM ARCHITECTURE ; PLANT-RESPONSES ; STARVATION ; KANADI ; AVAILABILITY ; DEFICIENCY ; REVEALS ; GENE ; TRANSFORMATION
WOS研究方向	Biochemistry & Molecular Biology ; Plant Sciences
WOS类目	Biochemistry & Molecular Biology ; Plant Sciences
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000264735600006
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2402400
专题	中国科学院大学
通讯作者	Wang, Daowen
作者单位	1.Chinese Acad Sci, Inst Genet & Dev Biol, State Key Lab Plant Cell & Chromosome Engn, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Liu, Hong,Yang, Huixia,Wu, Chongming,et al. Overexpressing hrs1 confers hypersensitivity to low phosphate-elicited inhibition of primary root growth in arabidopsis thaliana[J]. Journal of integrative plant biology,2009,51(4):382-392.
APA	Liu, Hong.,Yang, Huixia.,Wu, Chongming.,Feng, Juanjuan.,Liu, Xin.,...&Wang, Daowen.(2009).Overexpressing hrs1 confers hypersensitivity to low phosphate-elicited inhibition of primary root growth in arabidopsis thaliana.Journal of integrative plant biology,51(4),382-392.
MLA	Liu, Hong,et al."Overexpressing hrs1 confers hypersensitivity to low phosphate-elicited inhibition of primary root growth in arabidopsis thaliana".Journal of integrative plant biology 51.4(2009):382-392.

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