Synergetic Toxicity of Silver Nanoparticle and Glyphosate on Wheat (Triticum Aestivum L.)
Overview
Affiliations
Silver nanoparticles (AgNPs) are one of the most commonly used nanomaterials in industrial and agricultural production. Glyphosate is a broad-spectrum systemic herbicide, which mainly acts in the phloem of weeds that compete with crop growth and is widely used in agriculture. This study investigated the interactive effects of AgNPs and glyphosate on the physiological morphology, gene transcription, and rhizosphere microorganisms of wheat. Our results demonstrated that wheat growth, and the structure and diversity of rhizosphere microorganisms were slightly influenced by AgNPs and glyphosate single treatment at the test concentration. However, AgNPs and glyphosate (Gly) combined treatment (AgNPs + Gly) strongly inhibited wheat growth and influenced gene transcription. In total, 955, 601, and 1336 genes were determined to be differentially expressed in AgNPs, glyphosate, and combined treatment, respectively. According to KEGG analysis, the combined groups induced an antioxidant response by upregulating the transcription of phenylpropanoid biosynthesis-related genes. In addition, more energy was needed, and disrupted cell membrane was shown in the combined treatment, which displayed in the upregulation of sucrose, starch, and lipid synthesis. Moreover, the relative abundance of Bradyrhizobium, Devosia, Kribbella, Sphingopyxis (nitrogen-fixing bacteria), and Streptomyces (plant growth-promoting bacteria) in soil microbiota were decreased, implicated that nitrogen fixation and some beneficial substance secretions were inhibited by the combined treatment. This study emphasized that the synergetic effects of AgNPs and glyphosate exerted a negative impact on wheat growth.
Nanoparticles: a promising tool against environmental stress in plants.
Zhou X, H El-Sappah A, Khaskhoussi A, Huang Q, M Atif A, A Abd Elhamid M Front Plant Sci. 2025; 15:1509047.
PMID: 39931338 PMC: 11808028. DOI: 10.3389/fpls.2024.1509047.
Badiali C, Beccaccioli M, Sciubba F, Chronopoulou L, Petruccelli V, Palocci C Sci Rep. 2024; 14(1):21941.
PMID: 39304705 PMC: 11415495. DOI: 10.1038/s41598-024-73313-y.
Yan K, Ma Y, Bao S, Li W, Wang Y, Sun C Microorganisms. 2024; 12(3).
PMID: 38543634 PMC: 10974569. DOI: 10.3390/microorganisms12030584.
Negative effects of abamectin on soil microbial communities in the short term.
Qiu D, Xu N, Zhang Q, Zhou W, Wang Y, Zhang Z Front Microbiol. 2022; 13:1053153.
PMID: 36545194 PMC: 9760678. DOI: 10.3389/fmicb.2022.1053153.
Study on phytotoxicity evaluation and physiological properties of nicosulfuron on sugar beet ( L.).
Wang L, Riaz M, Song B, Song X, Huang W, Bai X Front Plant Sci. 2022; 13:998867.
PMID: 36304402 PMC: 9593059. DOI: 10.3389/fpls.2022.998867.