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240420s2024 xx |||||o 00| ||eng c |
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7 |
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|a 10.1111/nph.19760
|2 doi
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|a pubmed24n1416.xml
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|a (DE-627)NLM371308275
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|a (NLM)38641854
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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 Jing, Yexing
|e verfasserin
|4 aut
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| 245 |
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|a Sequential activation of strigolactone and salicylate biosynthesis promotes leaf senescence
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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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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 23.05.2024
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|a Date Revised 23.05.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2024 The Authors New Phytologist © 2024 New Phytologist Foundation.
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|a Leaf senescence is a complex process strictly regulated by various external and endogenous factors. However, the key signaling pathway mediating leaf senescence remains unknown. Here, we show that Arabidopsis SPX1/2 negatively regulate leaf senescence genetically downstream of the strigolactone (SL) pathway. We demonstrate that the SL receptor AtD14 and MAX2 mediate the age-dependent degradation of SPX1/2. Intriguingly, we uncover an age-dependent accumulation of SLs in leaves via transcriptional activation of SL biosynthetic genes by the transcription factors (TFs) SPL9/15. Furthermore, we reveal that SPX1/2 interact with the WRKY75 subclade TFs to inhibit their DNA-binding ability and thus repress transcriptional activation of salicylic acid (SA) biosynthetic gene SA Induction-Deficient 2, gating the age-dependent SA accumulation in leaves at the leaf senescence onset stage. Collectively, our new findings reveal a signaling pathway mediating sequential activation of SL and salicylate biosynthesis for the onset of leaf senescence in Arabidopsis
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|a Journal Article
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|a SPL9/15
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|a SPX1/2
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|a WRKY75
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|a salicylic acid (SA)
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|a strigolactones (SLs)
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|a Arabidopsis Proteins
|2 NLM
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| 650 |
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|a Lactones
|2 NLM
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| 650 |
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|a Transcription Factors
|2 NLM
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| 650 |
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|a Salicylic Acid
|2 NLM
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| 650 |
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|a O414PZ4LPZ
|2 NLM
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| 650 |
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|a Salicylates
|2 NLM
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| 650 |
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|a WRKY75 protein, Arabidopsis
|2 NLM
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| 700 |
1 |
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|a Yang, Ziyi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Zongju
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bai, Wanqing
|e verfasserin
|4 aut
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| 700 |
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|a Yang, Ruizhen
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Yanjun
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Kewei
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Yunwei
|e verfasserin
|4 aut
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| 700 |
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|a Sun, Jiaqiang
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 242(2024), 6 vom: 19. Mai, Seite 2524-2540
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
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|g volume:242
|g year:2024
|g number:6
|g day:19
|g month:05
|g pages:2524-2540
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| 856 |
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|u http://dx.doi.org/10.1111/nph.19760
|3 Volltext
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