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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1111/nph.16931
|2 doi
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|a pubmed25n1050.xml
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|a (DE-627)NLM315087668
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|a (NLM)32936937
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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 Zhang, Jun
|e verfasserin
|4 aut
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| 245 |
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|a OsWRKY21 and OsWRKY108 function redundantly to promote phosphate accumulation through maintaining the constitutive expression of OsPHT1;1 under phosphate-replete conditions
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|c 2021
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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
|b cr
|2 rdacarrier
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|a Date Completed 14.05.2021
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|a Date Revised 30.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2020 The Authors New Phytologist © 2020 New Phytologist Trust.
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|a Plant Phosphate Transporter 1 (PHT1) proteins, probably the only influx transporters for phosphate (Pi) uptake, are partially degraded on sufficient Pi levels to prevent excessive Pi accumulation. Therefore, the basal/constitutive expression level of PHT1 genes is vital for maintaining Pi uptake under Pi-replete conditions. Rice (Oryza sativa) OsPHT1;1 is a unique gene as it is highly expressed and not responsive to Pi, however the mechanism for maintaining its basal/constitutive expression remains unknown. Using biochemical and genetic approaches, we identified and functionally characterised the transcription factors maintaining the basal/constitutive expression of OsPHT1;1. OsWRKY21 and OsWRKY108 interact within the nucleus and both bind to the W-box in the OsPHT1;1 promoter. Overexpression of OsWRKY21 or OsWRKY108 led to increased Pi accumulation, resulting from elevated expression of OsPHT1;1. By contrast, oswrky21 oswrky108 double mutants showed decreased Pi accumulation and OsPHT1;1 expression in a Pi-dependent manner. Moreover, similar to ospht1;1 mutants, plants expressing the OsWRKY21-SRDX fusion protein (a chimeric dominant suppressor) were impaired in Pi accumulation in Pi-replete roots, accompanied by downregulation of OsPHT1;1 expression. Our findings demonstrated that rice WRKY transcription factors function redundantly to promote Pi uptake by activating OsPHT1;1 expression under Pi-replete conditions, and represent a novel pathway independent of the central Pi signalling system
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a WRKY
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|a phosphate
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|a phosphate transporter
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|a phosphorus
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|a redundancy
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|a rice
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|a signalling
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|a transcription factor
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|a Phosphate Transport Proteins
|2 NLM
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| 650 |
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|a Phosphates
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 700 |
1 |
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|a Gu, Mian
|e verfasserin
|4 aut
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| 700 |
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|a Liang, Ruisuhua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shi, Xinyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Lingling
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hu, Xu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Shichao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dai, Xiaoli
|e verfasserin
|4 aut
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| 700 |
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|a Qu, Hongye
|e verfasserin
|4 aut
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|a Li, Huanhuan
|e verfasserin
|4 aut
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| 700 |
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|a Xu, Guohua
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 229(2021), 3 vom: 01. Feb., Seite 1598-1614
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnas
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| 773 |
1 |
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|g volume:229
|g year:2021
|g number:3
|g day:01
|g month:02
|g pages:1598-1614
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|u http://dx.doi.org/10.1111/nph.16931
|3 Volltext
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|a AR
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|d 229
|j 2021
|e 3
|b 01
|c 02
|h 1598-1614
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