Amelioration of cold-induced oxidative stress by exogenous 24-epibrassinolide treatment in grapevine seedlings: Toward regulating the ascorbate–glutathione cycle

Chen, Ze-Ya; Wang, Yuting; Pan, Xingbo; Xi, Zhumei

doi:10.1016/j.scienta.2018.09.062

Cited by 75 publications

(29 citation statements)

References 48 publications

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“…In addition, the ratio of AsA/DHA and GSH/GSSG markedly increased in all plants that were pretreated with EBR. This indicates that exogenous EBR can improve the antioxidant system activity in wucai plants and promote the AsA‐GSH cycle to maintain its normal state, which is consistent with the findings of previous studies in eggplant (Wu et al., 2014), pepper (Wang et al., 2012), and grapevine (Chen et al., 2019).…”

Section: Resultssupporting

confidence: 91%

The effect of exogenous 24‐epibrassinolide pretreatment on the quality, antioxidant capacity, and postharvest life of wucai (Brassica campestris L.)

Yuan

Nie

et al. 2021

Food Science & Nutrition

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The quality of green leafy vegetables is easily lost during the postharvest period. The effect of exogenous 24‐epibrassinolide (EBR) pretreatment on the quality of wucai was evaluated in the present study. Wucai plants were sprayed twice with 0.1 μM EBR before harvesting. Two storage temperatures were tested: 25°C and 4°C. At 4°C, EBR pretreatment significantly delayed the degradation of the pigment and plant water loss. Furthermore, we measured the activity of key enzymes of the ascorbic acid (AsA)‐glutathione (GSH) cycle, the content of the main metabolites, and the expression of the AsA metabolism‐related genes in leaves. The results indicated that all three plants showed stronger antioxidant capacity after EBR pretreatment. At 4°C and 25°C, the storage time of wucai was 20 days and 7 days after EBR treatment, while the samples could be stored for 14 days and 4 days without EBR treatment application, respectively. At 4°C, the nutritional properties of wucai pretreated with EBR, such as total free amino acids, total soluble sugar, and cellulose contents, were higher than those of the control, while the content of nitrite and lignin was lower than that of the control. Hence, EBR pretreatment was able to enhance the antioxidant capacity of wucai, maintain normal leaf color and shape during storage, and delay the decline of nutritional properties; therefore, EBR pretreatment has potential commercial value for prolonging the market life of wucai.

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Section: Resultssupporting

confidence: 91%

The effect of exogenous 24‐epibrassinolide pretreatment on the quality, antioxidant capacity, and postharvest life of wucai (Brassica campestris L.)

Yuan

Nie

et al. 2021

Food Science & Nutrition

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“…Enzyme activities are enhanced in transgenic plants as of SOD by 55%, 48%, and 45%, POD by 64%, 65%, and 70%, CAT by 2.2%, 2.1%, and 2.1%, alcohol dehydrogenases by 2.1-, 2.3-, and 1.9-fold in three transgenic lines, respectively. [282] Interestingly, overexpression of DaAPX combined with supplementation of transgenic plants with H 2 O 2 significantly enhanced the activity of APX, improving flooding and cold tolerance [217]. Therefore, a number of genes have been documented to provide significant protection against abiotic stress through genetic modification in several plant species; however, many of the genes are yet to be reported in major crops.…”

Section: Chrysanthemum Morifolium Cmsos1mentioning

confidence: 99%

“…Interestingly, overexpression of DaAPX combined with supplementation of transgenic plants with H 2 O 2 significantly enhanced the activity of APX, improving flooding and cold tolerance [ 217 ]. Therefore, a number of genes have been documented to provide significant protection against abiotic stress through genetic modification in several plant species; however, many of the genes are yet to be reported in major crops.…”

Section: The Transgenic Approach In Enhancing Antioxidant Defensementioning

confidence: 99%

Reactive Oxygen Species and Antioxidant Defense in Plants under Abiotic Stress: Revisiting the Crucial Role of a Universal Defense Regulator

et al. 2020

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Global climate change and associated adverse abiotic stress conditions, such as drought, salinity, heavy metals, waterlogging, extreme temperatures, oxygen deprivation, etc., greatly influence plant growth and development, ultimately affecting crop yield and quality, as well as agricultural sustainability in general. Plant cells produce oxygen radicals and their derivatives, so-called reactive oxygen species (ROS), during various processes associated with abiotic stress. Moreover, the generation of ROS is a fundamental process in higher plants and employs to transmit cellular signaling information in response to the changing environmental conditions. One of the most crucial consequences of abiotic stress is the disturbance of the equilibrium between the generation of ROS and antioxidant defense systems triggering the excessive accumulation of ROS and inducing oxidative stress in plants. Notably, the equilibrium between the detoxification and generation of ROS is maintained by both enzymatic and nonenzymatic antioxidant defense systems under harsh environmental stresses. Although this field of research has attracted massive interest, it largely remains unexplored, and our understanding of ROS signaling remains poorly understood. In this review, we have documented the recent advancement illustrating the harmful effects of ROS, antioxidant defense system involved in ROS detoxification under different abiotic stresses, and molecular cross-talk with other important signal molecules such as reactive nitrogen, sulfur, and carbonyl species. In addition, state-of-the-art molecular approaches of ROS-mediated improvement in plant antioxidant defense during the acclimation process against abiotic stresses have also been discussed.

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“…It is worth noting that cold-tolerant species can grow at very low temperature (Sanghera et al 2011;Xu and Cai 2014;Liu et al 2019). Cold acclimation has been reported to be associated with a variety of mechanisms such as gene expression, change of membrane composition, accumulation of cryoprotectants and elevation of phytohormones (Lang et al 1994;Yadav 2010;Chen et al 2019). Among these changes, the enhancement of antioxidant capacity, especially the glutathione (GSH), is one of the most important factors for rice plants to resist cold stress since the plants cannot survive without glutathione (γ-glutamylcysteinylglycine) or γ-glutamylcysteine containing homologues (Tausz et al 2004;Noctor et al 2012;Hausladen and Alscher 2017;Banerjee and Roychoudhury 2019).…”

Section: Introductionmentioning

confidence: 99%

ATP Hydrolysis Determines Cold Tolerance by Regulating Available Energy for Glutathione Synthesis in Rice Seedling Plants

Jiang

et al. 2020

Rice

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Background: Glutathione (GSH) is important for plants to resist abiotic stress, and a large amount of energy is required in the process. However, it is not clear how the energy status affects the accumulation of GSH in plants under cold stress. Results: Two rice pure lines, Zhongzao39 (ZZ39) and its recombinant inbred line 82 (RIL82) were subjected to cold stress for 48 h. Under cold stress, RIL82 suffered more damages than ZZ39 plants, in which higher increases in APX activity and GSH content were showed in the latter than the former compared with their respective controls. This indicated that GSH was mainly responsible for the different cold tolerance between these two rice plants. Interestingly, under cold stress, greater increases in contents of carbohydrate, NAD(H), NADP(H) and ATP as well as the expression levels of GSH1 and GSH2 were showed in RIL82 than ZZ39 plants. In contrast, ATPase content in RIL82 plants was adversely inhibited by cold stress while it increased significantly in ZZ39 plants. This indicated that cold stress reduced the accumulation of GSH in RIL82 plants mainly due to the inhibition on ATP hydrolysis rather than energy deficit. Conclusion: We inferred that the energy status determined by ATP hydrolysis involved in regulating the cold tolerance of plants by controlling GSH synthesis.

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Amelioration of cold-induced oxidative stress by exogenous 24-epibrassinolide treatment in grapevine seedlings: Toward regulating the ascorbate–glutathione cycle

Cited by 75 publications

References 48 publications

The effect of exogenous 24‐epibrassinolide pretreatment on the quality, antioxidant capacity, and postharvest life of wucai (Brassica campestris L.)

The effect of exogenous 24‐epibrassinolide pretreatment on the quality, antioxidant capacity, and postharvest life of wucai (Brassica campestris L.)

Reactive Oxygen Species and Antioxidant Defense in Plants under Abiotic Stress: Revisiting the Crucial Role of a Universal Defense Regulator

ATP Hydrolysis Determines Cold Tolerance by Regulating Available Energy for Glutathione Synthesis in Rice Seedling Plants

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