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Brassinosteroids as promoters of seedling growth and antioxidant activity under heavy metal zinc stress in mung bean (Vigna radiata L.).
Kumar, Naresh; Sharma, Vikas; Kaur, Gurpreet; Lata, Charu; Dasila, Hemant; Perveen, Kahkashan; Khan, Faheema; Gupta, Vijay K; Khanam, Mehrun Nisha.
Afiliación
  • Kumar N; Department of Chemistry and Biochemistry, Eternal University, Rajgarh, India.
  • Sharma V; Department of Biochemistry, Kurukshetra University, Kurukshetra, India.
  • Kaur G; ICAR-National Dairy Research Institute, Karnal, India.
  • Lata C; ICAR-Central Soil Salinity Research Institute, Karnal, India.
  • Dasila H; ICAR- Indian Institute of Wheat and Barley Research, RRS, Shimla, India.
  • Perveen K; Department of Microbiology, Eternal University, Rajgarh, India.
  • Khan F; Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia.
  • Gupta VK; Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia.
  • Khanam MN; Department of Biochemistry, Kurukshetra University, Kurukshetra, India.
Front Microbiol ; 14: 1259103, 2023.
Article en En | MEDLINE | ID: mdl-37869675
The escalation of harmful pollutants, including heavy metals, due to industrialization and urbanization has become a global concern. To mitigate the negative impacts of heavy metal stress on germination and early plant development, growth regulators have been employed. This study aimed to evaluate the response of mung bean (Vigna radiata L.) to zinc stress in the presence of brassinosteroids, focusing on seedling growth and antioxidant potential. Mung bean seedlings were treated with three concentrations of 24-epibrassinolide (EBL) (0.1, 0.2, and 0.4 PPM) with or without zinc. Results demonstrated that the application of brassinosteroids, combined with zinc stress, significantly enhanced germination percentage (about 47.06, 63.64, and 120%), speed of germination (about 39.13, 50, and 100%), seedling growth (about 38% in case of treatment combined 0.4 PPM 24-EBL and 1.5 mM ZnSO4) and seedling vigor index (204% in case of treatment combined 0.4 PPM 24-EBL and 1.5 mM ZnSO4) compared to zinc-treated seedlings alone after 24 h. The activities of antioxidative enzymes (catalase, ascorbate peroxidase, polyphenol oxidase, and peroxidase) and total soluble protein content decreased, while lipid peroxidation and proline content exhibited a significant increase (p ≤ 0.05) when compared to the control. However, the negative effects induced by heavy metal stress on these parameters were significantly mitigated by EBL application. Notably, the most effective concentration of EBL in overcoming zinc stress was found to be 0.4 PPM. These findings underscore the potential of exogenously applied brassinosteroids as a valuable tool in phytoremediation projects by ameliorating heavy metal stress.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Front Microbiol Año: 2023 Tipo del documento: Article País de afiliación: India Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Front Microbiol Año: 2023 Tipo del documento: Article País de afiliación: India Pais de publicación: Suiza