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240322s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2024.154224
|2 doi
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|a pubmed24n1383.xml
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|a (NLM)38507925
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|a (PII)S0176-1617(24)00055-5
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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 Hong, Yonghui
|e verfasserin
|4 aut
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|a Amyloplast is involved in the MIZ1-modulated root hydrotropism
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|c 2024
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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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|a Date Completed 22.04.2024
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|a Date Revised 22.04.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 Elsevier GmbH. All rights reserved.
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|a Roots exhibit hydrotropism in response to moisture gradients, with the hydrotropism-related gene Mizu-kussei1 (MIZ1) playing a role in regulating root hydrotropism in an oblique orientation. However, the mechanisms underlying MIZ1-regulated root hydrotropism are not well understood. In this study, we employed obliquely oriented experimental systems to investigate root hydrotropism in Arabidopsis. We found that the miz1 mutant displays reduced root hydrotropism but increased root gravitropism following hydrostimulation, as compared to wild-type plants. Conversely, overexpression of AtMIZ1 leads to enhanced root hydrotropism but decreased root gravitropism following hydrostimulation, as compared to wild-type plants. Using co-immunoprecipitation followed by mass spectrometry (IP-MS), we explored proteins that interact with AtMIZ1, and we identified PGMC1 co-immunoprecipitated with MIZ1 in vivo. Furthermore, the miz1 mutant exhibited higher expression of the PGMC1 gene and increased phosphoglucomutase (PGM) activity, while AtMIZ1 overexpressors resulted in lower expression of the PGMC1 gene, reduced amyloplast amount, and reduced PGM activity in comparison to wild-type roots. In addition, different Arabidopsis natural accessions having difference in their hydrotropic response demonstrated expression level of PGMC1 was negatively correlated with hydrotropic root curvature and AtMIZ1 expression. Our results provide valuable insights into the role of amyloplast in MIZ1-regulated root hydrotropism
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|a Journal Article
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|a Amyloplast
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|a Gravitropism
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|a Hydrotropism
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|a MIZ1
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|a Root
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|a Arabidopsis Proteins
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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| 700 |
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|a Liu, Siqi
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Yadi
|e verfasserin
|4 aut
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|a Yao, Zixuan
|e verfasserin
|4 aut
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|a Jiang, Shuqiu
|e verfasserin
|4 aut
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|a Wang, Lulu
|e verfasserin
|4 aut
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|a Zhu, Xinkai
|e verfasserin
|4 aut
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|a Xu, Weifeng
|e verfasserin
|4 aut
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|a Zhang, Jianhua
|e verfasserin
|4 aut
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| 700 |
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|a Li, Ying
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 296(2024) vom: 01. Apr., Seite 154224
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:296
|g year:2024
|g day:01
|g month:04
|g pages:154224
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|u http://dx.doi.org/10.1016/j.jplph.2024.154224
|3 Volltext
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