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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erad193
|2 doi
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|a pubmed24n1190.xml
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|a (DE-627)NLM357233247
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|a (NLM)37220914
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Pang, Lei
|e verfasserin
|4 aut
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|a MIZU-KUSSEI1 (MIZ1) and GNOM/MIZ2 control not only positive hydrotropism but also phototropism in Arabidopsis roots
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|c 2023
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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
|b cr
|2 rdacarrier
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|a Date Completed 14.09.2023
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|a Date Revised 18.09.2023
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2023. 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 In response to unilateral blue light illumination, roots of some plant species such as Arabidopsis thaliana exhibit negative phototropism (bending away from light), which is important for light avoidance in nature. MIZU-KUSSEI1 (MIZ1) and GNOM/MIZ2 are essential for positive hydrotropism (i.e. in the presence of a moisture gradient, root bending towards greater water availability). Intriguingly, mutations in these genes also cause a substantial reduction in phototropism. Here, we examined whether the same tissue-specific sites of expression required for MIZ1- and GNOM/MIZ2-regulated hydrotropism in Arabidopsis roots are also required for phototropism. The attenuated phototropic response of miz1 roots was completely restored when a functional MIZ1-green fluorescent protein (GFP) fusion was expressed in the cortex of the root elongation zone but not in other tissues such as root cap, meristem, epidermis, or endodermis. The hydrotropic defect and reduced phototropism of miz2 roots were restored by GNOM/MIZ2 expression in either the epidermis, cortex, or stele, but not in the root cap or endodermis. Thus, the sites in root tissues that are involved in the regulation of MIZ1- and GNOM/MIZ2-dependent hydrotropism also regulate phototropism. These results suggest that MIZ1- and GNOM/MIZ2-mediated pathways are, at least in part, shared by hydrotropic and phototropic responses in Arabidopsis roots
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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 roots
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|a MIZ1
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|a MIZ2
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|a hydrotropism
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|a phototropism
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|a Arabidopsis Proteins
|2 NLM
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|a GNOM protein, Arabidopsis
|2 NLM
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| 650 |
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|a Guanine Nucleotide Exchange Factors
|2 NLM
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| 700 |
1 |
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|a Kobayashi, Akie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Atsumi, Yuka
|e verfasserin
|4 aut
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| 700 |
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|a Miyazawa, Yutaka
|e verfasserin
|4 aut
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| 700 |
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|a Fujii, Nobuharu
|e verfasserin
|4 aut
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|a Dietrich, Daniela
|e verfasserin
|4 aut
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| 700 |
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|a Bennett, Malcolm J
|e verfasserin
|4 aut
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|a Takahashi, Hideyuki
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 74(2023), 17 vom: 13. Sept., Seite 5026-5038
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:74
|g year:2023
|g number:17
|g day:13
|g month:09
|g pages:5026-5038
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| 856 |
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|u http://dx.doi.org/10.1093/jxb/erad193
|3 Volltext
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|d 74
|j 2023
|e 17
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|c 09
|h 5026-5038
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