Hu, Bin, Jiang, Zhimin, Wang, Wei, Qiu, Yahong, Zhang, Zhihua, Liu, Yongqiang, Li, Aifu, Gao, Xiaokai, Liu, Linchuan, Qian, Yangwen, Huang, Xiahe, Yu, Feifei, Kang, Sai, Wang, Yiqin, Xie, Junpeng, Cao, Shouyun, Zhang, Lianhe, Wang, Yingchun, Xie, Qi, Kopriva, Stanislav ORCID: 0000-0002-7416-6551 and Chu, Chengcai ORCID: 0000-0001-8097-6115 (2019). Nitrate-NRT1.1B-SPX4 cascade integrates nitrogen and phosphorus signalling networks in plants. Nat. Plants, 5 (4). S. 401 - 414. LONDON: NATURE PUBLISHING GROUP. ISSN 2055-0278

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Abstract

To ensure high crop yields in a sustainable manner, a comprehensive understanding of the control of nutrient acquisition is required. In particular, the signalling networks controlling the coordinated utilization of the two most highly demanded mineral nutrients, nitrogen and phosphorus, are of utmost importance. Here, we reveal a mechanism by which nitrate activates both phosphate and nitrate utilization in rice (Oryza sativa L.). We show that the nitrate sensor NRT1.1B interacts with a phosphate signalling repressor SPX4. Nitrate perception strengthens the NRT1.1B-SPX4 interaction and promotes the ubiquitination and degradation of SPX4 by recruiting NRT1.1B interacting protein 1 (NBIP1), an E3 ubiquitin ligase. This in turn allows the key transcription factor of phosphate signalling, PHR2, to translocate to the nucleus and initiate the transcription of phosphorus utilization genes. Interestingly, the central transcription factor of nitrate signalling, NLP3, is also under the control of SPX4. Thus, nitrate-triggered degradation of SPX4 activates both phosphate- and nitrate-responsive genes, implementing the coordinated utilization of nitrogen and phosphorus.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Hu, BinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jiang, ZhiminUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wang, WeiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Qiu, YahongUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zhang, ZhihuaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Liu, YongqiangUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Li, AifuUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gao, XiaokaiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Liu, LinchuanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Qian, YangwenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Huang, XiaheUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yu, FeifeiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kang, SaiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wang, YiqinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Xie, JunpengUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cao, ShouyunUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zhang, LianheUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wang, YingchunUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Xie, QiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kopriva, StanislavUNSPECIFIEDorcid.org/0000-0002-7416-6551UNSPECIFIED
Chu, ChengcaiUNSPECIFIEDorcid.org/0000-0001-8097-6115UNSPECIFIED
URN: urn:nbn:de:hbz:38-151397
DOI: 10.1038/s41477-019-0384-1
Journal or Publication Title: Nat. Plants
Volume: 5
Number: 4
Page Range: S. 401 - 414
Date: 2019
Publisher: NATURE PUBLISHING GROUP
Place of Publication: LONDON
ISSN: 2055-0278
Language: English
Faculty: Faculty of Mathematics and Natural Sciences
Divisions: Faculty of Mathematics and Natural Sciences > Department of Biology > Botanical Institute
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
PHOSPHATE STARVATION RESPONSES; HOMEOSTASIS; EXPRESSION; PROTEINS; SENSOR; GENES; CHL1; SPX1; PHR2Multiple languages
Plant SciencesMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/15139

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