ArticleEnvironmental science and pollution research international2022
Sunflower resistance against Sclerotinia sclerotiorum is potentiated by selenium through regulation of redox homeostasis and hormones signaling pathways.
Article in Environmental science and pollution research international, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 18 citations in OpenAlex.
- The Dual Effect of Selenium Application in Reducing Fusarium Wilt Disease Incidence in Banana and Producing Se-Enriched Fruits.Plants (Basel, Switzerland) · 2024Article
- Pangenome Data Analysis Reveals Characteristics of Resistance Gene Analogs Associated withLife (Basel, Switzerland) · 2024Article
- Selenium Nanoparticle and Melatonin Treatments Improve Melon Seedling Growth by Regulating Carbohydrate and Polyamine.International journal of molecular sciences · 2024Article
- High Concentrations of Se Inhibited the Growth of Rice Seedlings.Plants (Basel, Switzerland) · 2024Article
- Maleic acid and malonic acid reduced the pathogenicity of Sclerotinia sclerotiorum by inhibiting mycelial growth, sclerotia formation and virulence factors.Stress biology · 2023Article
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7 authors at 2 institutions in 1 country.
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Abstract
White mold of sunflower caused by Sclerotinia sclerotiorum is a devastating disease that causes serious yield losses. Selenium (Se) helps plants resist stress. In this study, the resistance of sunflower to S. sclerotiorum was improved after foliar application of selenite. Selenite sprayed on leaves can be absorbed by sunflowers and transformed to selenomethionine. Consequently, sunflowers treated with Se exhibited a delay in lesion development with decrease by 54% compared to mock inoculation at 36-h post inoculation (hpi). In addition, treatment with Se compromised the adverse effects caused by S. sclerotiorum infection by balancing the regulation of genes involved in redox homeostasis. In particular, cat expression on leaves treated with Se increased to 2.5-fold to alleviate the downregulation caused by S. sclerotiorum infection at 12 hpi. Additionally, apx expression on leaves treated with Se decreased by 36% to alleviate the upregulation caused by S. sclerotiorum infection at 24 hpi, whereas expressions of gpx, pox, and nox on leaves treated with Se also successively decreased by approximately 40-60% to alleviate the upregulation caused by S. sclerotiorum infection at 24 and 36 hpi, respectively. The use of Se also enhanced the regulation of genes involved in hormones signaling pathways, in which expressions of AOC and PAL increased to 2.0- and 1.5-fold, respectively, to enhance the upregulation caused by S. sclerotiorum infection at 12 hpi, whereas expressions of AOC and PDF1.2 increased to 2.7- and 1.8-fold at 24 hpi, respectively. In addition, EIN2 expression on leaves treated with Se increased to 1.8-, 2.0-, and 1.5-fold to alleviate the downregulation caused by S. sclerotiorum infection. These results suggest that Se can improve sunflower defense responses against S. sclerotiorum infection aiming a sustainable white mold management.
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