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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erw196
|2 doi
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|a pubmed24n0868.xml
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|a (DE-627)NLM260599867
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|a (NLM)27208542
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|a DE-627
|b ger
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|e rakwb
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|a eng
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|a Shen, Chenjia
|e verfasserin
|4 aut
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|a Involvement of endogenous salicylic acid in iron-deficiency responses in Arabidopsis
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 03.11.2017
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|a Date Revised 04.12.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © The Author 2016. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a Several phytohormones have been demonstrated to be involved in iron (Fe) homeostasis. We took advantage of a salicylic acid (SA) biosynthesis defective mutant phytoalexin deficient 4 (pad4: T-DNA Salk_089936) to explore the possible effects of endogenous SA on the morphological and physiological responses to Fe deprivation. The morphological and physiological analysis was carried out between Col-0 and the pad4 mutant. Under an Fe-deficiency treatment, Col-0 showed more severe leaf chlorosis and root growth inhibition compared with the pad4 mutant. The soluble Fe concentrations were significantly higher in pad4 than in Col-0 under the Fe-deficiency treatment. Fe deficiency significantly induced SA accumulation in Col-0 and the loss-of-function of PAD4 blocked this process. The requirement of endogenous SA accumulation for Fe-deficiency responses was confirmed using a series of SA biosynthetic mutants and transgenic lines. Furthermore, a comparative RNA sequencing analysis of the whole seedling transcriptomes between Col-0 and the pad4 mutant was also performed. Based on the transcriptome data, the expression levels of many auxin- and ethylene-response genes were altered in pad4 compared with Col-0. Fe deficiency increases SA contents which elevates auxin and ethylene signalling, thereby activating Fe translocation via the bHLH38/39-mediated transcriptional regulation of downstream Fe genes
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|a Journal Article
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|a Fe deficiency
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|a RNA sequencing
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|a hormones
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|a nutrients
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|a salicylic acid
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|a transcriptome analysis.
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|a Plant Growth Regulators
|2 NLM
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|a Iron
|2 NLM
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|a E1UOL152H7
|2 NLM
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|a Salicylic Acid
|2 NLM
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| 650 |
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|a O414PZ4LPZ
|2 NLM
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| 700 |
1 |
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|a Yang, Yanjun
|e verfasserin
|4 aut
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1 |
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|a Liu, Kaidong
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Lei
|e verfasserin
|4 aut
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| 700 |
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|a Guo, Hong
|e verfasserin
|4 aut
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|a Sun, Tao
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Huizhong
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 67(2016), 14 vom: 30. Juli, Seite 4179-93
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:67
|g year:2016
|g number:14
|g day:30
|g month:07
|g pages:4179-93
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|u http://dx.doi.org/10.1093/jxb/erw196
|3 Volltext
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