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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2023.107692
|2 doi
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|a pubmed24n1185.xml
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|a (DE-627)NLM355631156
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|a (NLM)37058965
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|a (PII)S0981-9428(23)00203-6
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Duan, Bailin
|e verfasserin
|4 aut
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|a GhMYB44 enhances stomatal closure to confer drought stress tolerance in cotton and Arabidopsis
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 08.05.2023
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|a Date Revised 08.05.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2023 Elsevier Masson SAS. All rights reserved.
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|a MYB genes play crucial roles in plant response to abiotic stress. However, the function of MYB genes in cotton during abiotic stress is less well elucidated. Here, we found an R2R3-type MYB gene, GhMYB44, was induced by simulated drought (PEG6000) and ABA in three cotton varieties. After drought stress, the GhMYB44-silenced plants showed substantial changes at the physiological level, including significantly increased malondialdehyde content and decreased SOD activity. Silencing the GhMYB44 gene increased stomatal aperture and water loss rate, reduced plant drought tolerance. Transgenic Arabidopsis thaliana over-expressed GhMYB44 (GhMYB44-OE) enhanced resistance to mannitol-simulated osmotic stress. The stomatal aperture of the GhMYB44-OE Arabidopsis was significantly smaller than those of the wild type (WT), and the GhMYB44-OE Arabidopsis increased tolerance to drought stress. Transgenic Arabidopsis had higher germination rate under ABA treatment compared to WT, and the transcript levels of AtABI1, AtPP2CA and AtHAB1 were suppressed in GhMYB44-OE plants, indicating a potential role of GhMYB44 in the ABA signal pathway. These results showed that GhMYB44 acts as a positive regulator in plant response to drought stress, potentially useful for engineering drought-tolerant cotton
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|a Journal Article
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|a ABA
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|a Arabidopsis thaliana
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|a Drought tolerance
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|a G. hirsutum L.
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|a GhMYB44
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|a Stomatal aperture
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|a Abscisic Acid
|2 NLM
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|a 72S9A8J5GW
|2 NLM
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|a Plant Proteins
|2 NLM
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| 700 |
1 |
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|a Xie, Xiaofang
|e verfasserin
|4 aut
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|a Jiang, Yanhua
|e verfasserin
|4 aut
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| 700 |
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|a Zhu, Ning
|e verfasserin
|4 aut
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|a Zheng, Hongli
|e verfasserin
|4 aut
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|a Liu, Yuxin
|e verfasserin
|4 aut
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|a Hua, Xuejun
|e verfasserin
|4 aut
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|a Zhao, Yanyan
|e verfasserin
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|a Sun, Yuqiang
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 198(2023) vom: 01. Mai, Seite 107692
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:198
|g year:2023
|g day:01
|g month:05
|g pages:107692
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|u http://dx.doi.org/10.1016/j.plaphy.2023.107692
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