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240916s2024 xx |||||o 00| ||eng c |
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|a 10.1111/nph.20122
|2 doi
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|a pubmed24n1581.xml
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|a (DE-627)NLM377660639
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|a (NLM)39279035
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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 Wang, Xiuyu
|e verfasserin
|4 aut
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|a Hydrogen sulfide antagonizes cytokinin to change root system architecture through persulfidation of CKX2 in Arabidopsis
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|c 2024
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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 17.10.2024
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|a Date Revised 25.10.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2024 The Author(s). New Phytologist © 2024 New Phytologist Foundation.
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|a Hydrogen sulfide (H2S) is an endogenous gaseous signaling molecule, which has been shown to play an important role in plant growth and development by coupling with various phytohormones. However, the relationship between H2S and cytokinin (CTK) and the mechanisms by which H2S and CTK affect root growth remain poorly understood. Endogenous CTK was analyzed by UHPLC-ESI-MS/MS. Persulfidation of cytokinin oxidase/dehydrogenases (CKXs) was analyzed by mass spectrometry (MS). ckx2/CKX2wild-type (WT), OE CKX2 and ckx2/CKX2Cys(C)62alanine(A) transgenic lines were isolated with the ckx2 background. H2S is linked to CTK content by CKX2, which regulates root system architecture (RSA). Persulfidation at cysteine (Cys)62 residue of CKX2 enhances CKX2 activity, resulting in reduced CTK content. We utilized 35S-LCD/oasa1 transgenic lines to investigate the effect of endogenous H2S on RSA, indicating that H2S reduces the gravitropic set-point angle (GSA), shortens root hairs, and increases the number of lateral roots (LRs). The persulfidation of CKX2Cys62 changes the elongation of cells on the upper and lower flanks of LR elongation zone, confirming that Cys62 of CKX2 is the specificity target of H2S to regulate RSA in vivo. In conclusion, this study demonstrated that H2S negatively regulates CTK content and affects RSA by persulfidation of CKX2Cys62 in Arabidopsis thaliana
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|a Journal Article
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|a Arabidopsis thaliana
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|a cytokinin
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|a cytokinin oxidase/dehydrogenases
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|a hydrogen sulfide
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|a persulfidation
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|a root system architecture
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|a Cytokinins
|2 NLM
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|a Hydrogen Sulfide
|2 NLM
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|a YY9FVM7NSN
|2 NLM
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| 650 |
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|a Arabidopsis Proteins
|2 NLM
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| 650 |
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|a cytokinin oxidase
|2 NLM
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| 650 |
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|a EC 1.5.99.12
|2 NLM
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|a Oxidoreductases
|2 NLM
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|a EC 1.-
|2 NLM
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| 700 |
1 |
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|a Liu, Cuixia
|e verfasserin
|4 aut
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|a Li, Tian
|e verfasserin
|4 aut
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| 700 |
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|a Zhou, Fangyu
|e verfasserin
|4 aut
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|a Sun, Haotian
|e verfasserin
|4 aut
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|a Li, Fali
|e verfasserin
|4 aut
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|a Ma, Ying
|e verfasserin
|4 aut
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|a Jia, Honglei
|e verfasserin
|4 aut
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|a Zhang, Xiaoyue
|e verfasserin
|4 aut
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|a Shi, Wei
|e verfasserin
|4 aut
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|a Gong, Chunmei
|e verfasserin
|4 aut
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| 700 |
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|a Li, Jisheng
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 244(2024), 4 vom: 01. Okt., Seite 1377-1390
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:244
|g year:2024
|g number:4
|g day:01
|g month:10
|g pages:1377-1390
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|u http://dx.doi.org/10.1111/nph.20122
|3 Volltext
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|d 244
|j 2024
|e 4
|b 01
|c 10
|h 1377-1390
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