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Phytochrome interacting factors (PIFs) are essential regulators for sucrose-induced hypocotyl elongation in Arabidopsis
Liu, ZJ; Zhang, YQ; Liu, RZ; Hao, HL; Wang, Z; Bi, YR(毕玉蓉); Bi, YR (reprint author), Lanzhou Univ, Sch Life Sci, Minist Educ, Key Lab Arid & Grassland Agroecol, Lanzhou 730000, Gansu, Peoples R China.
Indexed BySCIE ; PubMed ; MEDLINE ; BIOSIS
2011-10-15
Source PublicationJOURNAL OF PLANT PHYSIOLOGY
ISSN0176-1617
Volume168Issue:15Pages:1771-1779
AbstractPhytochrome interacting factors (PIFs) are members of a subfamily of basic helix-loop-helix transcript factors and have been proposed to act as positive regulators of hypocotyl elongation under normal condition. Here, we show that PIF1, 3,4, 5 together play a central role in sucrose-induced hypocotyl elongation. When seedlings grown in light were transferred to darkness, exogenously applied sucrose significantly induced hypocotyl elongation in wild type Col-0, but this effect was impaired in all tested Of mutants, especially in the quadruple mutant pif1pif3pif4pif5 (pifq). Subsequent experiments showed that under various light/dark (L/D) cycle conditions sucrose still markedly induced hypocotyl elongation in Col-0, but exhibited little effects in pifq. Phytohormone gibberellins (GAs) have been proven to be required for sucrose-induced hypocotyl elongation, but application of GA(3) (an active form of GAs) was not able to rescue the impairment observed in pifq, suggesting that impairment of sucrose-induced hypocotyl elongation in pifq is not due to the reduced endogenous GAs. Interestingly, through RT-PCR assay, we found that sucrose up-regulated the transcript level of PIF1, 3, 4, 5 in darkness. Furthermore, this effect was dependent on the presence of GAs. Additionally, under continuous light condition, sucrose markedly inhibited the hypocotyl elongation in Col-0 but not in pifq, whereas exogenous GA(3) could recover the repression in Col-0 but only showed slight effect in pifq. These results collectively indicate that PIFs together with GAs control the effect of sucrose on hypocotyl elongation in Arabidopsis seedlings. (C) 2011 Elsevier GmbH. All rights reserved.
KeywordArabidopsis Gibberellins Hypocotyl elongation PIFs Sucrose
Subject AreaPlant Sciences
PublisherELSEVIER
Publication PlaceJENA
DOI10.1016/j.jplph.2011.04.009
First Inst
Language英语
Project NumberSpecialized Research Fund for the Doctoral Program of Higher Education of China [20100211110009] ; Major Project of Cultivating New Varieties of Transgenic Organisms [2009ZX08009-029B] ; National High Technology Research and Development Program (863 Program) [2007AA021401] ; National Natural Science Foundation of China [90917019]
Funding Project国家自然科学基金项目 ; 国家高技术研究发展计划(863计划) ; 国家科技重大专项 ; 高等学校博士学科点专项科研基金 ; 转基因生物新品种培育科技重大专项
Funding OrganizationNSFC ; MOST ; MOE ; MOA
SubtypeArticle
WOS IDWOS:000295703100008
PMID 21684034
BIOSIS IDBIOSIS:PREV201100691184
Department[Liu, Zhongjuan;
Zhang, Yongqiang;
Liu, Rongzhi;
Hao, Hualing;
Wang, Zhi;
Bi, Yurong] Lanzhou Univ, Sch Life Sci, Minist Educ, Key Lab Arid & Grassland Agroecol, Lanzhou 730000, Gansu, Peoples R China
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/115085
Collection生命科学学院
Corresponding AuthorBi, YR (reprint author), Lanzhou Univ, Sch Life Sci, Minist Educ, Key Lab Arid & Grassland Agroecol, Lanzhou 730000, Gansu, Peoples R China.
Recommended Citation
GB/T 7714
Liu, ZJ,Zhang, YQ,Liu, RZ,et al. Phytochrome interacting factors (PIFs) are essential regulators for sucrose-induced hypocotyl elongation in Arabidopsis[J]. JOURNAL OF PLANT PHYSIOLOGY,2011,168(15):1771-1779.
APA Liu, ZJ.,Zhang, YQ.,Liu, RZ.,Hao, HL.,Wang, Z.,...&Bi, YR .(2011).Phytochrome interacting factors (PIFs) are essential regulators for sucrose-induced hypocotyl elongation in Arabidopsis.JOURNAL OF PLANT PHYSIOLOGY,168(15),1771-1779.
MLA Liu, ZJ,et al."Phytochrome interacting factors (PIFs) are essential regulators for sucrose-induced hypocotyl elongation in Arabidopsis".JOURNAL OF PLANT PHYSIOLOGY 168.15(2011):1771-1779.
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