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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2023.108207
|2 doi
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|a pubmed24n1216.xml
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|a (DE-627)NLM364980087
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|a (NLM)38006791
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|a (PII)S0981-9428(23)00718-0
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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 |
1 |
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|a Liu, Huayu
|e verfasserin
|4 aut
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1 |
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|a The apple transcription factor MdbHLH4 regulates plant morphology and fruit development by promoting cell enlargement
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|c 2023
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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 05.12.2023
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|a Date Revised 05.12.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2023 Elsevier Masson SAS. All rights reserved.
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|a The bHLH family, the second largest transcription factor (TF) family in plants, plays a crucial role in regulating plant growth and development processes. However, the biological functions and mechanisms of most bHLH proteins remain unknown, particularly in apples. In this study, we found that MdbHLH4 positively modulates plant growth and development by enhancing cell expansion. Overexpression (OE) of MdbHLH4 resulted in increased biomass, stem and root length, leaf area, and larger areas of pith, xylem, and cortex with greater cell size compared with wild-type apple plants. Conversely, RNA interference (RNAi)-mediated silencing of MdbHLH4 led to reduced xylem and phloem as well as smaller cell size compared to wild-type apple plants. Ectopic expression of MdbHLH4 in tomatoes resulted in enlarged fruits with impaired color appearance, decreased accumulation of soluble solids, and decreased flesh firmness along with larger seeds. Subsequent investigations have shown that MdbHLH4 directly binds to the promoters of MdARF6b and MdPIF4b, enhancing their expression levels. These findings suggest that MdbHLH4 potentially regulates plant cell expansion through auxin and light signaling pathways. These study results not only provide new insights into the roles of bHLH transcription factors in regulating plant growth and development but also contribute to a deeper understanding of their underlying mechanisms
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|a Journal Article
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|a AUXIN RESPONSE FACTOR
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|a Apple
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|a Cell enlargement
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|a MdbHLH4
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|a PHYTOCHROME INTERACTION FACTOR
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|a Plant growth
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| 650 |
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|a Transcriptional regulation
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| 650 |
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|a Transcription Factors
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Basic Helix-Loop-Helix Transcription Factors
|2 NLM
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| 700 |
1 |
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|a Wang, Kangning
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Jie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Xingfa
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mei, Quanlin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qiu, Lina
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Fengwang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mao, Ke
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 205(2023) vom: 23. Dez., Seite 108207
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:205
|g year:2023
|g day:23
|g month:12
|g pages:108207
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|u http://dx.doi.org/10.1016/j.plaphy.2023.108207
|3 Volltext
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