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20231225210836.0 |
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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1111/nph.17719
|2 doi
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|a pubmed24n1100.xml
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|a (DE-627)NLM330231812
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|a (NLM)34480752
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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 Zhao, Huan
|e verfasserin
|4 aut
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| 245 |
1 |
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|a HOMEOBOX PROTEIN 24 mediates the conversion of indole-3-butyric acid to indole-3-acetic acid to promote root hair elongation
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|c 2021
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 06.01.2022
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|a Date Revised 31.05.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation.
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|a Indole-3-acetic acid (IAA) is a predominant form of active auxin in plants. In addition to de novo biosynthesis and release from its conjugate forms, IAA can be converted from its precursor indole-3-butyric acid (IBA). The IBA-derived IAA may help drive root hair elongation in Arabidopsis thaliana seedlings, but how the IBA-to-IAA conversion is regulated and affects IAA function requires further investigation. In this study, HOMEOBOX PROTEIN 24 (HB24), a transcription factor in the zinc finger-homeodomain family (ZF-HD family) of proteins, was identified. With loss of HB24 function, defective growth occurred in root hairs. INDOLE-3-BUTYRIC ACID RESPONSE 1 (IBR1), which encodes an enzyme involved in the IBA-to-IAA conversion, was identified as a direct target of HB24 for the control of root hair elongation. The exogenous IAA or auxin analogue 1-naphthalene acetic acid (NAA) both rescued the root hair growth phenotype of hb24 mutants, but IBA did not, suggesting a role for HB24 in the IBA-to-IAA conversion. Therefore, HB24 participates in root hair elongation by upregulating the expression of IBR1 and subsequently promoting the IBA-to-IAA conversion. Moreover, IAA also elevated the expression of HB24, suggesting a feedback loop is involved in IBA-to-IAA conversion-mediated root hair elongation
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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4 |
|a Arabidopsis thaliana
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4 |
|a HOMEOBOX PROTEIN 24
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4 |
|a auxin
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4 |
|a indole-3-acetic acid (IAA)
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| 650 |
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4 |
|a indole-3-butyric acid (IBA)
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| 650 |
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4 |
|a root hair
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|a transcription factor
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| 650 |
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|a Arabidopsis Proteins
|2 NLM
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| 650 |
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|a Homeodomain Proteins
|2 NLM
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| 650 |
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7 |
|a Indoleacetic Acids
|2 NLM
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| 650 |
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7 |
|a Indoles
|2 NLM
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| 650 |
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7 |
|a indolebutyric acid
|2 NLM
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| 650 |
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7 |
|a 061SKE27JP
|2 NLM
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| 650 |
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7 |
|a indoleacetic acid
|2 NLM
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| 650 |
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7 |
|a 6U1S09C61L
|2 NLM
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| 700 |
1 |
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|a Wang, Yutao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Shuai
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fu, Ying
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhu, Lei
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 232(2021), 5 vom: 04. Dez., Seite 2057-2070
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
8 |
|g volume:232
|g year:2021
|g number:5
|g day:04
|g month:12
|g pages:2057-2070
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/nph.17719
|3 Volltext
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|a AR
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|d 232
|j 2021
|e 5
|b 04
|c 12
|h 2057-2070
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