Dynamic physiological and transcriptome changes reveal a potential relationship between the circadian clock and salt stress response in Ulmus pumila

Chen, Panfei; Liu, Peng; Zhang, Quanfeng; Жао, Леи; Hao, Xuri; Liu, Lei; Bu, Chenhao; Pan, Yanjun; Zhang, Deqiang; Song, Yuepeng

doi:10.1007/s00438-021-01838-2

Cited by 7 publications

(5 citation statements)

References 88 publications

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“…In addition to its established roles in thiamine synthesis and mitochondrial DNA damage resistance, THI1 contributes significantly to plant abiotic response to stress (Rapala-Kozik et al, 2012 ; Li et al, 2016 ). Several plant THI1 genes that respond to drought, salinity, heat, and oxidative stress have been identified (Livak and Schmittgen, 2000 ; Scafaro et al, 2010 ; Abidin et al, 2016 ; Mangel et al, 2017 ; Chen et al, 2022 ), but no research has been conducted on alfalfa. Here, we report the isolation and functional characterization of a THI1 gene (called MsTHI1 ) from alfalfa.…”

Section: Discussionmentioning

confidence: 99%

“…Thiamine can improve the oxidation state of mitochondria, enhance the activities of pyruvate dehydrogenase (PDH), release ROS quickly when stimulated by stress, and activate downstream genes to induce stress resistance in plants. Thiamine thiazole synthase (THI1), also known as 4-methyl-5-hydroxyethyl thiazole phosphate (HET-P) synthase, is a major enzyme in thiamine biosynthesis, and it performs a crucial function in controlling thiamine production in plants (Chen et al, 2022 ). Nodule expansion and seed development in Lotus japonicus depend on the thiamine synthesis controlled by THI1 (Nagae et al, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

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MsTHI1 overexpression improves drought tolerance in transgenic alfalfa (Medicago sativa L.)

Yin

Wang

et al. 2022

Front. Plant Sci.

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In recent years, drought stress caused by global warming has become a major constraint on agriculture. The thiamine thiazole synthase (THI1) is responsible for controlling thiamine production in plants displaying a response to various abiotic stresses. Nonetheless, most of the THI1 activities in plants remain largely unknown. In this study, we extracted MsTHI1 from alfalfa and demonstrated its beneficial impact on improving the resistance of plants to stress conditions. The highest levels of MsTHI1 expression were identified in alfalfa leaves, triggered by exposure to cold, drought, salt, or alkaline conditions. The upregulation of MsTHI1 in drought-stressed transgenic plants resulted in enhanced accumulation of vitamin B1 (VB1), chlorophyll a (Chl a), chlorophyll b (Chl b), soluble protein, higher soil and plant analyzer development (SPAD) value, and the activity of peroxidase (POD), maintained Fv/Fm, and decreased lipid peroxidation. Moreover, overexpression of MsTHI1 upregulated the transcription of THI4, TPK1, RbcX2, Cu/Zn-SOD, CPK13, and CPK32 and downregulated the transcription of TH1 and CPK17 in transgenic alfalfa under drought stress. These results suggested that MsTHI1 enhances drought tolerance by strengthening photosynthesis, regulating the antioxidant defense system, maintaining osmotic homeostasis, and mediating plant signal transduction.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

MsTHI1 overexpression improves drought tolerance in transgenic alfalfa (Medicago sativa L.)

Yin

Wang

et al. 2022

Front. Plant Sci.

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“…The endogenous clock conferring plants a fitness advantage enables them to anticipate periodic environmental changes and adapt correspondingly, thus contributing to the physiological and developmental homeostasis of plants [ 29 ]. This happens initially through communicating an estimate of the time of day to circadian-regulated features of the cell and later to transcriptional regulation [ 30 , 31 ]. Previous reports contradicted this hypothesis as they concluded that the endogenous clock may indirectly be involved in adaption as part of correlation with other adaptive traits and are unemployed for adaption in new generations compared to their ancestors [ 32 ].…”

Section: Circadian Clock Plays a Central Role In Plant Fitnessmentioning

confidence: 99%

“…The central component of this network is the stomatal movements. An increasing number of studies have demonstrated that the endogenous circadian oscillator modulates the circadian rhythm of stomatal movement [ 30 , 68 , 69 ] and modulates the responses of stomatal guard cells to environmental cues [ 70 , 71 ]. Calcium (Ca + ) signaling is one of the primary regulators of the osmotic stress response [ 11 , 72 ].…”

Section: Circadian Clock Enhances Fitness By Controlling Wue Through ...mentioning

confidence: 99%

“…A comparison between the circadian clock and ABA-responsive transcriptional profile revealed 40% of ABA-responsive genes are controlled by the circadian clock [ 105 ]. Since the plant circadian clock has a role in drought- and osmotic-stress tolerance [ 25 , 30 , 73 , 106 ], underlying its mechanism of action in plant stress response is a valuable approach in the enhancement of plants’ performance under stress conditions [ 7 ]. It has been shown that tolerance to stressors would be disturbed in plants with impaired central oscillator activity [ 107 , 108 , 109 ].…”

Section: Circadian Clock Interacts With Aba Signaling Pathwaymentioning

confidence: 99%

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Regulatory Role of Circadian Clocks on ABA Production and Signaling, Stomatal Responses, and Water-Use Efficiency under Water-Deficit Conditions

Kamrani

Shomali

Aliniaeifard

et al. 2022

Cells

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Plants deploy molecular, physiological, and anatomical adaptations to cope with long-term water-deficit exposure, and some of these processes are controlled by circadian clocks. Circadian clocks are endogenous timekeepers that autonomously modulate biological systems over the course of the day–night cycle. Plants’ responses to water deficiency vary with the time of the day. Opening and closing of stomata, which control water loss from plants, have diurnal responses based on the humidity level in the rhizosphere and the air surrounding the leaves. Abscisic acid (ABA), the main phytohormone modulating the stomatal response to water availability, is regulated by circadian clocks. The molecular mechanism of the plant’s circadian clock for regulating stress responses is composed not only of transcriptional but also posttranscriptional regulatory networks. Despite the importance of regulatory impact of circadian clock systems on ABA production and signaling, which is reflected in stomatal responses and as a consequence influences the drought tolerance response of the plants, the interrelationship between circadian clock, ABA homeostasis, and signaling and water-deficit responses has to date not been clearly described. In this review, we hypothesized that the circadian clock through ABA directs plants to modulate their responses and feedback mechanisms to ensure survival and to enhance their fitness under drought conditions. Different regulatory pathways and challenges in circadian-based rhythms and the possible adaptive advantage through them are also discussed.

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Transcriptome Analysis of Salt Stress Response in the Root System of Periploca sepium at Different Time Points

Wang,

Han,

Zhao

et al. 2024

J Plant Growth Regul

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Dynamic physiological and transcriptome changes reveal a potential relationship between the circadian clock and salt stress response in Ulmus pumila

Cited by 7 publications

References 88 publications

MsTHI1 overexpression improves drought tolerance in transgenic alfalfa (Medicago sativa L.)

MsTHI1 overexpression improves drought tolerance in transgenic alfalfa (Medicago sativa L.)

Regulatory Role of Circadian Clocks on ABA Production and Signaling, Stomatal Responses, and Water-Use Efficiency under Water-Deficit Conditions

Transcriptome Analysis of Salt Stress Response in the Root System of Periploca sepium at Different Time Points

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