Brassinosteroids Regulate Functional Components of Antioxidative Defense System in Salt Stressed Maize Seedlings

Rattan, Amandeep; Kapoor, Dhriti; Kapoor, Nitika; Bhardwaj, Renu; Sharma, Anket

doi:10.1007/s00344-020-10097-1

Cited by 50 publications

(37 citation statements)

References 82 publications

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“…In this study, we found that the OE lines under stress treatment had higher POD and SOD activities, and the KO lines had low POD and SOD activities than wild type ( Supplementary Figure S3 ). MDA, a stable product of the membrane lipid peroxidation, can reflect the damage degree and the senescence process of plant ( Rattan et al, 2020 ). It can be seen that after being subjected to salt stress, compared with the wild type, the transgenic birch with the BpPP2C1 gene knocked out has a higher MDA content, and the overexpressing the BpPP2C1 gene had a lower MDA value ( Figure 6 ).…”

Section: Discussionmentioning

confidence: 99%

Functional Study of BpPP2C1 Revealed Its Role in Salt Stress in Betula platyphylla

Xing

Zhang

et al. 2021

Front. Plant Sci.

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PP2C protein phosphatase family is one of the largest gene families in the plant genome. Many PP2C family members are involved in the regulation of abiotic stress. We found that BpPP2C1 gene has highly up-regulated in root under salt stress in Betula platyphylla. Thus, transgenic plants of Betula platyphylla with overexpression and knockout of BpPP2C1 gene were generated using a zygote transformation system. Under NaCl stress treatment, we measured the phenotypic traits of transgenic plants, chlorophyll-fluorescence parameters, peroxidase (POD) activity, superoxide dismutase (SOD) activity, and malondialdehyde (MDA) content. We found that BpPP2C1 overexpressed lines showed obvious salt tolerance, while BpPP2C1 knocked out plants were sensitive to salt stress. Transcriptome analysis identified significantly amount of differentially expressed genes associated with salt stress in BpPP2C1 transgenic lines, especially genes in abscisic acid signaling pathway, flavonoid biosynthetic pathway, oxidative stress and anion transport. Functional study of BpPP2C1 in Betula platyphylla revealed its role in salt stress.

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Section: Discussionmentioning

confidence: 99%

Functional Study of BpPP2C1 Revealed Its Role in Salt Stress in Betula platyphylla

Xing

Zhang

et al. 2021

Front. Plant Sci.

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“…In order to regulate the content of ROS, plants employ a well-formed and complicated antioxidant defense system including enzymatic and nonenzymatic antioxidant processes (Blokhina et al 2003, Asrar et al 2020. The antioxidant enzymes involve superoxide dismutases (SOD, EC 1.15.1.1), catalases (CAT, EC 1.11.1.6), guaiacol peroxidase (POD, EC 1.11.1.7), and ascorbate peroxidase (APX, EC 1.11.1.11), which can clean and/or neutralize ROS (Blokhina et al 2003, Rattan et al 2020.…”

Section: Introductionmentioning

confidence: 99%

Physiological changes of three woody plants exposed to progressive salt stress

Lü¹,

Zeng²,

Li³

et al. 2021

Photosynt.

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“…In the cytosol, long exposure of salt stress causes imbalance of minerals and nutrients. Salt stress consequently leads to oxidative burst due to the generation of reactive oxygen species (ROS) (Acosta-Motos et al 2017, Li et al 2018, Rattan et al 2020. Additionally, uptake and accumulation of excessive salt ions interference with many intracellular metabolic processes.…”

Section: Salt Stress and Its Impacts On Plantsmentioning

confidence: 99%

“…The salt stress decrease the production capacity due retardation in growth and finally can cause the death of the plant. Salt stress adversely disturbs virtually all facets of biological processes, including photosynthesis, protein synthesis, and other primary metabolism pathways (Chartzoulakis and Klapaki 2000, Tanveer et al 2018, Rattan et al 2020. Additionally, under high salt, the most immediate response is the decrease in the cell expansion (Wang and Nii 2000).…”

Section: Salt Stress and Its Impacts On Plantsmentioning

confidence: 99%

Nitric oxide mediated mechanisms adopted by plants to cope with salinity

Sharma¹,

Kapoor²,

Wang³

et al. 2020

Biologia plant.

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Worldwide, a relevant surface of arable lands is facing salt stress, and this surface is increasing continuously due to both natural and anthropogenic activities. Nitric oxide (NO) is a small, gaseous molecule with a plethora of physiological roles in plants. In addition to its normal physiological functions, NO protects plants subjected to different environmental cues including salinity. For example, NO mediates photosynthesis and stomatal conductance, stimulates the activity of Na + /H + antiport in tonoplast, promotes the biosynthesis of osmolytes, and counteracts overaccumulation of reactive oxygen species in plant cells under salt stress. Exogenous NO is also beneficial for plants subjected to salinity, in which it increases salinity tolerance via growth promotion, reversing oxidative damage, and maintaining ion homeostasis. This review provides a comprehensive picture of the NO-mediated mechanisms in plants, resulting in salinity tolerance with a particular focus on the photosynthetic processes, the antioxidant patterns as well as the cross-talk with other regulatory compounds in plant cells.

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Brassinosteroids Regulate Functional Components of Antioxidative Defense System in Salt Stressed Maize Seedlings

Cited by 50 publications

References 82 publications

Functional Study of BpPP2C1 Revealed Its Role in Salt Stress in Betula platyphylla

Functional Study of BpPP2C1 Revealed Its Role in Salt Stress in Betula platyphylla

Physiological changes of three woody plants exposed to progressive salt stress

Nitric oxide mediated mechanisms adopted by plants to cope with salinity

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