Exogenous application and endogenous elevation of salicylic acid levels by overexpressing a salicylic acid-binding protein 2 gene enhance nZnO tolerance of tobacco plants

Peng, Danliu; Zhang, Yue; Li, Qian; Song, Yingjin; Ji, Jing; Wang, Gang; Guan, Chunfeng; Li, Xiaozhou

doi:10.1007/s11104-020-04521-4

Cited by 12 publications

(3 citation statements)

References 60 publications

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“…Recently, Ma [ 26 ] showed that exogenous SA treatments induce the upregulation of PIP1 expression in Lycium ruthenicu leaves under drought conditions, increase the contents of plant plasma membrane intrinsic proteins, enhance the H 2 O 2 transport capacities of plasma membranes, and help trigger the activities of SOD, POD and other antioxidant enzymes. Peng [ 27 ] reported that exogenous SA applications induce the over-expression of the SA-binding protein 2 gene, which plays active roles in regulating the expression of antioxidant enzyme-related genes and the activities of antioxidant enzymes in tobacco plants. In this study, foliar spraying of an appropriate SA dose increased the SOD and POD activities, which is consistent with these previous results.…”

Section: Discussionmentioning

confidence: 99%

Salicylic Acid Protects Sweet Potato Seedlings from Drought Stress by Mediating Abscisic Acid-Related Gene Expression and Enhancing the Antioxidant Defense System

Chongping

Junlin

Huang

et al. 2022

IJMS

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China has the largest sweet potato planting area worldwide, as well as the highest yield per unit area and total yield. Drought is the most frequently encountered environmental stress during the sweet potato growing season. In this study, we investigated salicylic acid (SA)-mediated defense mechanisms under drought conditions in two sweet potato varieties, Zheshu 77 and Zheshu 13. Drought stress decreased growth traits, photosynthetic pigments and relative water contents, as well as the photosynthetic capability parameters net photosynthetic rate, stomatal conductance and transpiration rate, whereas it increased reactive oxygen species production, as well as malondialdehyde and abscisic acid contents. The application of SA to drought-stressed plants reduced oxidative damage by triggering the modulation of antioxidant enzyme activities and the maintenance of optimized osmotic environments in vivo in the two sweet potato varieties. After SA solution applications, NCED-like3 expression was downregulated and the abscisic acid contents of drought-stressed plants decreased, promoting photosynthesis and plant growth. Thus, foliar spraying an appropriate dose of SA, 2.00–4.00 mg·L−1, on drought-stressed sweet potato varieties may induce resistance in field conditions, thereby increasing growth and crop yield in the face of increasingly frequent drought conditions.

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Section: Discussionmentioning

confidence: 99%

Salicylic Acid Protects Sweet Potato Seedlings from Drought Stress by Mediating Abscisic Acid-Related Gene Expression and Enhancing the Antioxidant Defense System

Chongping

Junlin

Huang

et al. 2022

IJMS

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“…The water treatment group was severed as a control. For the detection of defense-related gene expression levels in SA-deficient tobacco, the water, the KRS010 fermentation broth (OD 600 = 1.0), and the solution of 10 μmol/L SA were sprayed on the 3-week-old tobacco leaves for 6 h before collecting leaves [ 70 ].…”

Section: Methodsmentioning

confidence: 99%

Insights into the biocontrol and plant growth promotion functions of Bacillus altitudinis strain KRS010 against Verticillium dahliae

Shan,

Wang,

Zhao

et al. 2024

BMC Biol

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Background Verticillium wilt, caused by the fungus Verticillium dahliae, is a soil-borne vascular fungal disease, which has caused great losses to cotton yield and quality worldwide. The strain KRS010 was isolated from the seed of Verticillium wilt-resistant Gossypium hirsutum cultivar “Zhongzhimian No. 2.” Results The strain KRS010 has a broad-spectrum antifungal activity to various pathogenic fungi as Verticillium dahliae, Botrytis cinerea, Fusarium spp., Colletotrichum spp., and Magnaporthe oryzae, of which the inhibition rate of V. dahliae mycelial growth was 73.97% and 84.39% respectively through confrontation test and volatile organic compounds (VOCs) treatments. The strain was identified as Bacillus altitudinis by phylogenetic analysis based on complete genome sequences, and the strain physio-biochemical characteristics were detected, including growth-promoting ability and active enzymes. Moreover, the control efficiency of KRS010 against Verticillium wilt of cotton was 93.59%. After treatment with KRS010 culture, the biomass of V. dahliae was reduced. The biomass of V. dahliae in the control group (Vd991 alone) was 30.76-folds higher than that in the treatment group (KRS010+Vd991). From a molecular biological aspect, KRS010 could trigger plant immunity by inducing systemic resistance (ISR) activated by salicylic acid (SA) and jasmonic acid (JA) signaling pathways. Its extracellular metabolites and VOCs inhibited the melanin biosynthesis of V. dahliae. In addition, KRS010 had been characterized as the ability to promote plant growth. Conclusions This study indicated that B. altitudinis KRS010 is a beneficial microbe with a potential for controlling Verticillium wilt of cotton, as well as promoting plant growth.

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“…Treatment with ZnO nanoparticles and the overexpression of the LcSABP2 gene in transgenic tobacco result in a significant boost in SA levels. 90 Compared to wild-type plants, transgenic tobacco plants treated with ZnO nanoparticles exhibit enhanced chlorophyll content, net photosynthetic rate, related gene expression, and increased activities of SOD, peroxidase, and catalase, and decreased H 2 O 2 , O 2− , and MDA contents. The outcomes suggest that LcSABP2 could potentially regulate plant resistance to ZnO nanoparticles toxicity by increasing endogenous SA levels, facilitating the operation of the Environmental Science: Nano Critical review photosynthetic system, and upregulating the antioxidant enzymes activity.…”

Section: Nanomaterials-induced Phytohormones-mediated Immune Response...mentioning

confidence: 99%

Mechanistic approaches for crosstalk between nanomaterials and plants: plant immunomodulation, defense mechanisms, stress resilience, toxicity, and perspectives

Singh,

Choudhary,

Kumar

et al. 2024

Environ. Sci.: Nano

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Exogenous application and endogenous elevation of salicylic acid levels by overexpressing a salicylic acid-binding protein 2 gene enhance nZnO tolerance of tobacco plants

Cited by 12 publications

References 60 publications

Salicylic Acid Protects Sweet Potato Seedlings from Drought Stress by Mediating Abscisic Acid-Related Gene Expression and Enhancing the Antioxidant Defense System

Salicylic Acid Protects Sweet Potato Seedlings from Drought Stress by Mediating Abscisic Acid-Related Gene Expression and Enhancing the Antioxidant Defense System

Insights into the biocontrol and plant growth promotion functions of Bacillus altitudinis strain KRS010 against Verticillium dahliae

Mechanistic approaches for crosstalk between nanomaterials and plants: plant immunomodulation, defense mechanisms, stress resilience, toxicity, and perspectives

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