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240527s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2024.108736
|2 doi
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|a pubmed24n1442.xml
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|a (DE-627)NLM372853188
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|a (NLM)38797006
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|a (PII)S0981-9428(24)00404-2
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|a DE-627
|b ger
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|e rakwb
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|a eng
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|a Teng, Zhiyan
|e verfasserin
|4 aut
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|a Melatonin confers thermotolerance and antioxidant capacity in Chinese cabbage
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|c 2024
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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 15.06.2024
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|a Date Revised 15.06.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 Elsevier Masson SAS. All rights reserved.
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|a Due to the damaging effect of high temperatures on plant development, global warming is predicted to increase agricultural risks. Chinese cabbage holds considerable importance as a leafy vegetable that is extensively consumed and cultivated worldwide. Its year-round production also encounters severe challenges in the face of high temperatures. In this study, melatonin (MT), a pivotal multifunctional signaling molecule that coordinates responses to diverse environmental stressors was used to mitigate the harmful effects of high temperatures on Chinese cabbage. Through the utilization of growth indices, cytological morphology, physiological and biochemical responses, and RNA-Seq analysis, alongside an examination of the influence of crucial enzymes in the endogenous MT synthesis pathway on the thermotolerance of Chinese cabbage, we revealed that MT pretreatment enhanced photosynthetic activity, maintained signaling pathways associated with endoplasmic reticulum protein processing, and preserved circadian rhythm in Chinese cabbage under high temperatures. Furthermore, pretreatment with MT resulted in increased levels of soluble sugar, vitamin C, proteins, and antioxidant enzyme activity, along with decreased levels of malondialdehyde, nitrate, flavonoids, and bitter glucosinolates, ultimately enhancing the capacity of the organism to mitigate oxidative stress. The knockdown of the tryptophan decarboxylase gene, which encodes a key enzyme responsible for MT biosynthesis, resulted in a significant decline in the ability of transgenic Chinese cabbage to alleviate oxidative damage under high temperatures, further indicating an important role of MT in establishing the thermotolerance. Taken together, these results provide a mechanism for MT to improve the antioxidant capacity of Chinese cabbage under high temperatures and suggest beneficial implications for the management of other plants subjected to global warming
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|a Journal Article
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|a Antioxidant
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|a Chinese cabbage
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|a High temperatures
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|a Melatonin
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|a Thermotolerance
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|a Tryptophan decarboxylase
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|a Melatonin
|2 NLM
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|a JL5DK93RCL
|2 NLM
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| 650 |
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|a Antioxidants
|2 NLM
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| 700 |
1 |
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|a Chen, Caizhi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a He, Yuanrong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pan, Shihui
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Dandan
|e verfasserin
|4 aut
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| 700 |
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|a Zhu, Luyu
|e verfasserin
|4 aut
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|a Liang, Kexin
|e verfasserin
|4 aut
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|a Li, Yufei
|e verfasserin
|4 aut
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| 700 |
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|a Huang, Li
|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 212(2024) vom: 15. Juni, Seite 108736
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:212
|g year:2024
|g day:15
|g month:06
|g pages:108736
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|u http://dx.doi.org/10.1016/j.plaphy.2024.108736
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