OsADR3 increases drought stress tolerance by inducing antioxidant defense mechanisms and regulating OsGPX1 in rice (Oryza sativa L.)

Li, Jiaming; Zhang, Minghui; Yang, Liuqing; Mao, Xinrui; Li, Jinjie; Lü, Li; Wang, Jingguo; Liu, Hualong; Zheng, Hongliang; Li, Zichao; Zhao, Hongwei; Li, Xianwei; Lei, Lei; Sun, Jian; Zou, Detang

doi:10.1016/j.cj.2020.12.005

Cited by 29 publications

(14 citation statements)

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“…In addition, rf4 mutants had higher contents of antioxidant substances, SOD and CAT activities, and actual PSII photochemical efficiency and ultimately improved the water stress tolerance ( Chen et al, 2021b ). Another study reported that ABA-drought-ROS 3 ( OsADR3 ) conferred drought stress tolerance by enhancing antioxidant defense and regulating OsGPX1 ( Li et al, 2021 ). The authors showed that CRISPR/Cas9-mediated knockout of osadr3 increased the sensitivity of rice to drought and oxidative stress.…”

Section: Transgenic and Crispr/cas-based Solution For Crop Improvementmentioning

confidence: 99%

“…The authors showed that CRISPR/Cas9-mediated knockout of osadr3 increased the sensitivity of rice to drought and oxidative stress. These outcomes suggest that OsADR3 has a positive regulatory role in drought stress tolerance by prompting antioxidant defense and is related to ABA signaling pathway in rice ( Li et al, 2021 ). To examine the function of OsPRP1 (proline-rich proteins-PRPs) in cold stress, rice mutant plants were created using CRISPR/Cas9 technology ( Nawaz et al, 2019 ).…”

Section: Transgenic and Crispr/cas-based Solution For Crop Improvementmentioning

confidence: 99%

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Plant hormones and neurotransmitter interactions mediate antioxidant defenses under induced oxidative stress in plants

et al. 2022

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Due to global climate change, abiotic stresses are affecting plant growth, productivity, and the quality of cultivated crops. Stressful conditions disrupt physiological activities and suppress defensive mechanisms, resulting in stress-sensitive plants. Consequently, plants implement various endogenous strategies, including plant hormone biosynthesis (e.g., abscisic acid, jasmonic acid, salicylic acid, brassinosteroids, indole-3-acetic acid, cytokinins, ethylene, gibberellic acid, and strigolactones) to withstand stress conditions. Combined or single abiotic stress disrupts the normal transportation of solutes, causes electron leakage, and triggers reactive oxygen species (ROS) production, creating oxidative stress in plants. Several enzymatic and non-enzymatic defense systems marshal a plant’s antioxidant defenses. While stress responses and the protective role of the antioxidant defense system have been well-documented in recent investigations, the interrelationships among plant hormones, plant neurotransmitters (NTs, such as serotonin, melatonin, dopamine, acetylcholine, and γ-aminobutyric acid), and antioxidant defenses are not well explained. Thus, this review discusses recent advances in plant hormones, transgenic and metabolic developments, and the potential interaction of plant hormones with NTs in plant stress response and tolerance mechanisms. Furthermore, we discuss current challenges and future directions (transgenic breeding and genome editing) for metabolic improvement in plants using modern molecular tools. The interaction of plant hormones and NTs involved in regulating antioxidant defense systems, molecular hormone networks, and abiotic-induced oxidative stress tolerance in plants are also discussed.

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Section: Transgenic and Crispr/cas-based Solution For Crop Improvementmentioning

confidence: 99%

Section: Transgenic and Crispr/cas-based Solution For Crop Improvementmentioning

confidence: 99%

Plant hormones and neurotransmitter interactions mediate antioxidant defenses under induced oxidative stress in plants

et al. 2022

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“…The accumulation of large amounts of ROS such as hydrogen peroxide (H 2 O 2 ) leads to oxidative damage under stress conditions (Choudhury et al., 2017; Xiong et al., 2018). Studies have demonstrated that increasing the ROS scavenging capacity can help plants to cope with drought stress (Li et al., 2021; Xiong et al., 2018). Previously, it was shown that SNAC3 plays positive roles in ROS homeostasis under both drought and heat stress conditions by upregulating the transcript levels of genes related to ROS metabolism (Fang et al., 2015).…”

Section: Discussionmentioning

confidence: 99%

“…In rice ( Oryza sativa ), overexpression of OsLG3 increases (i) the expression levels of 10 genes that are related to ROS metabolism and (ii) SOD and POD activities, resulting in higher survival rates under drought stress (Xiong et al., 2018). A recent study in rice showed that overexpression of OsADR3 increased drought stress resistance by inducing the expression of OsGPX1 (Li et al., 2021). Similarly, TaASR1‐D positively regulates the expression levels of TaSOD1 , TaCAT3 , and TaGPx1‐D to increase the ROS scavenging capacity (Qiu et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Similarly, TaASR1‐D positively regulates the expression levels of TaSOD1 , TaCAT3 , and TaGPx1‐D to increase the ROS scavenging capacity (Qiu et al., 2021). Interestingly, the expression of OsLG3 , OsADR3 , and TaASR1‐D can be induced by exogenous abscisic acid (ABA) application, which suggests that the antioxidant system might be connected to the ABA signaling pathway (Hu et al., 2013; Li et al., 2021; Qiu et al., 2021; Xiong et al., 2018). Similarly, we demonstrated that the expression of TaFD‐Like2‐1A ( TaFDL2‐1A ) decreased damage due to ROS under drought conditions via the ABA signaling pathway (Wang et al., 2021), but little is known about the mechanisms underlying the improved ROS scavenging capacity.…”

Section: Introductionmentioning

confidence: 99%

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TaFDL2‐1A confers drought stress tolerance by promoting ABA biosynthesis, ABA responses, and ROS scavenging in transgenic wheat

Wang

Liu

et al. 2022

The Plant Journal

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Plants have developed various protective mechanisms to survive drought stress. Previously, it was shown that a wheat bZIP transcription factor gene TaFD-Like2-1A (TaFDL2-1A) can confer drought tolerance in Arabidopsis. However, the biological functions related to drought stress tolerance of TaFDL2-1A in wheat (Triticum aestivum L.) remain unclear. In the present study, overexpression of TaFDL2-1A in the wheat cultivar Fielder improved drought resistance and conferred abscisic acid (ABA) hypersensitivity. Further analysis showed that overexpression of TaFDL2-1A increased the hypersensitivity of stomata to drought stress and endogenous ABA content under drought conditions. Genetic analysis and transcriptional regulation analysis indicated that TaFDL2-1A binds directly to the promoter fragments of TaRAB21s and TaNCED2s via ACGT core cis-elements, thereby activating their expression, leading to enhanced ABA responses and endogenous ABA accumulation. In addition, our results demonstrate that overexpression of TaFDL2-1A results in higher SOD and GPX activities in wheat under drought conditions by promoting the expression of TaSOD1 and TaGPx1-D, indicating enhanced reactive oxygen species (ROS) scavenging. These results imply that TaFDL2-1A positively regulates ABA biosynthesis, ABA responses, and ROS scavenging to improve drought stress tolerance in transgenic wheat. Our findings improve our understanding of the mechanisms that allow the wheat bZIP transcription factor to improve drought resistance and provide a useful reference gene for breeding programs to enhance drought resistance.

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Developing drought‐smart, ready‐to‐grow future crops

Mubarik²,

et al. 2022

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Breeding crop plants with increased yield potential and improved tolerance to stressful environments is critical for global food security. Drought stress (DS) adversely affects agricultural productivity worldwide and is expected to rise in the coming years. Therefore, it is vital to understand the physiological, biochemical, molecular, and ecological mechanisms associated with DS. This review examines recent advances in plant responses to DS to expand our understanding of DS-associated mechanisms. Suboptimal water sources adversely affect crop growth and yields through physical impairments, physiological disturbances, biochemical modifications, and molecular adjustments. To control the devastating effect of DS in crop plants, it is important to understand its consequences, mechanisms, and the agronomic and genetic basis of DS for sustainable production. In addition to plant responses, we highlight several mitigation options such as omics approaches, transgenics breeding, genome editing, and biochemical to mechanical methods (foliar treatments, seed priming, and conventional agronomic practices). Further, we have

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OsADR3 increases drought stress tolerance by inducing antioxidant defense mechanisms and regulating OsGPX1 in rice (Oryza sativa L.)

Cited by 29 publications

References 74 publications

Plant hormones and neurotransmitter interactions mediate antioxidant defenses under induced oxidative stress in plants

Plant hormones and neurotransmitter interactions mediate antioxidant defenses under induced oxidative stress in plants

TaFDL2‐1A confers drought stress tolerance by promoting ABA biosynthesis, ABA responses, and ROS scavenging in transgenic wheat

Developing drought‐smart, ready‐to‐grow future crops

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