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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1111/nph.17301
|2 doi
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|a pubmed24n1072.xml
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|a (DE-627)NLM321876288
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|a (NLM)33629353
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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 Shen, Chao
|e verfasserin
|4 aut
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|a PdGNC confers drought tolerance by mediating stomatal closure resulting from NO and H2 O2 production via the direct regulation of PdHXK1 expression in Populus
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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
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|2 rdacarrier
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|a Date Completed 14.05.2021
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|a Date Revised 14.05.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2021 The Authors New Phytologist © 2021 New Phytologist Foundation.
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|a Drought is one of the primary abiotic stresses, seriously implicating plant growth and productivity. Stomata play a crucial role in regulating drought tolerance. However, the molecular mechanism on stomatal movement-mediated drought tolerance remains unclear. Using genetic, molecular and biochemical techniques, we identified that the PdGNC directly activating the promoter of PdHXK1 by binding the GATC element, a hexokinase (HXK) synthesis key gene. Here, PdGNC, a member of the GATA transcription factor family, was greatly induced by abscisic acid and dehydration. Overexpressing PdGNC in poplar (Populus clone 717) resulted in reduced stomatal aperture with greater water-use efficiency and increased water deficit tolerance. By contrast, CRISPR/Cas9-mediated poplar mutant gnc exhibited increased stomatal aperture and water loss with reducing drought resistance. PdGNC activates PdHXK1 (a hexokinase synthesis key gene), resulting in a remarkable increase in hexokinase activity in poplars subjected to water deficit. Furthermore, hexokinase promoted nitric oxide (NO) and hydrogen peroxide (H2 O2 ) production in guard cells, which ultimately reduced stomatal aperture and increased drought resistance. Together, PdGNC confers drought stress tolerance by reducing stomatal aperture caused by NO and H2 O2 production via the direct regulation of PdHXK1 expression in poplars
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a PdGNC
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|a PdHXK1
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|a Populus
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|a CRISPR
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|a Cas9
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|a H2O2 production
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|a NO production
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|a drought stress
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|a stomatal closure
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|a Nitric Oxide
|2 NLM
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|a 31C4KY9ESH
|2 NLM
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| 650 |
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|a Abscisic Acid
|2 NLM
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| 650 |
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|a 72S9A8J5GW
|2 NLM
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| 700 |
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|a Zhang, Yue
|e verfasserin
|4 aut
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| 700 |
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|a Li, Qing
|e verfasserin
|4 aut
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|a Liu, Shujing
|e verfasserin
|4 aut
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|a He, Fang
|e verfasserin
|4 aut
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|a An, Yi
|e verfasserin
|4 aut
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|a Zhou, Yangyan
|e verfasserin
|4 aut
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|a Liu, Chao
|e verfasserin
|4 aut
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|a Yin, Weilun
|e verfasserin
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| 700 |
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|a Xia, Xinli
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 230(2021), 5 vom: 25. Juni, Seite 1868-1882
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:230
|g year:2021
|g number:5
|g day:25
|g month:06
|g pages:1868-1882
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|u http://dx.doi.org/10.1111/nph.17301
|3 Volltext
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|a AR
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|d 230
|j 2021
|e 5
|b 25
|c 06
|h 1868-1882
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