Foliar Application of Sodium Nitroprusside Boosts Solanum lycopersicum L. Tolerance to Glyphosate by Preventing Redox Disorders and Stimulating Herbicide Detoxification Pathways

• Type: Article in International Scientific Journal
• Date: 2021

Authors

Soares, C (Author) Other; Rodrigues, F (Author) Other; Sousa, B (Author) Other; Pinto, E (Author) Other; Ferreira, Isabel (Author) FFUP; Ruth Pereira (Author) FCUP; Fernanda Fidalgo (Author) FCUP

Journal

Title: Plants

Vol. 147

Final page: 1862

Publisher: MDPI

Indexing

ISI Web of Knowledge - 8 Citations

Scopus - 8 Citations

Other information

Authenticus ID: P-00V-BCZ

DOI: 10.3390/plants10091862

Abstract (EN): Strategies to minimize the effects of glyphosate (GLY), the most used herbicide worldwide, on non-target plants need to be developed. In this context, the current study was designed to evaluate the potential of nitric oxide (NO), provided as 200 mu M sodium nitroprusside (SNP), to ameliorate GLY (10 mg kg(-1) soil) phytotoxicity in tomato plants. Upon herbicide exposure, plant development was majorly inhibited in shoots and roots, followed by a decrease in flowering and fruit set; however, the co-application of NO partially prevented these symptoms, improving plant growth. Concerning redox homeostasis, lipid peroxidation (LP) and reactive oxygen species (ROS) levels rose in response to GLY in shoots of tomato plants, but not in roots. Additionally, GLY induced the overaccumulation of proline and glutathione, and altered ascorbate redox state, but resulted in the inhibition of the antioxidant enzymes. Upon co-treatment with NO, the non-enzymatic antioxidants were not particularly changed, but an upregulation of all antioxidant enzymes was found, which helped to keep ROS and LP under control. Overall, data point towards the benefits of NO against GLY in tomato plants by reducing the oxidative damage and stimulating detoxification pathways, while also preventing GLY-induced impairment of flowering and fruit fresh mass.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 21