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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2011.04.009
|2 doi
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|a pubmed24n0698.xml
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|a (DE-627)NLM209268794
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|a (NLM)21684034
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Liu, Zhongjuan
|e verfasserin
|4 aut
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|a Phytochrome interacting factors (PIFs) are essential regulators for sucrose-induced hypocotyl elongation in Arabidopsis
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|c 2011
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 03.05.2013
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|a Date Revised 30.09.2020
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|a published: Print
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|a Citation Status MEDLINE
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|a Copyright © 2011 Elsevier GmbH. All rights reserved.
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|a Phytochrome 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 pif 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
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arabidopsis Proteins
|2 NLM
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|a Basic Helix-Loop-Helix Transcription Factors
|2 NLM
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|a Gibberellins
|2 NLM
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|a PIF1 protein, Arabidopsis
|2 NLM
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|a PIF3 protein, Arabidopsis
|2 NLM
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| 650 |
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|a PIF4 protein, Arabidopsis
|2 NLM
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| 650 |
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|a PIF5 protein, Arabidopsis
|2 NLM
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| 650 |
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|a RNA, Messenger
|2 NLM
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| 650 |
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|a RNA, Plant
|2 NLM
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|a Phytochrome
|2 NLM
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|a 11121-56-5
|2 NLM
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|a Sucrose
|2 NLM
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|a 57-50-1
|2 NLM
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| 700 |
1 |
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|a Zhang, Yongqiang
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Rongzhi
|e verfasserin
|4 aut
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| 700 |
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|a Hao, Hualing
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Zhi
|e verfasserin
|4 aut
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| 700 |
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|a Bi, Yurong
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 168(2011), 15 vom: 15. Okt., Seite 1771-9
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:168
|g year:2011
|g number:15
|g day:15
|g month:10
|g pages:1771-9
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|u http://dx.doi.org/10.1016/j.jplph.2011.04.009
|3 Volltext
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|d 168
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