Insecticidal and antioxidant potential of volatile compounds and nanoparticles from Tulbaghia violacea Harv. inoculated with endophytic fungus Beauveria bassiana (Bals.-Criv.) Vuill

Ludwaba, Bandile; Jimoh, Muhali Olaide; Laubscher, Charles Petrus; Nchu, Felix

doi:10.1016/j.sajb.2023.12.028

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2024

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Cited by 2 publications

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Biotechnological advances in microbial synthesis of gold nanoparticles: Optimizations and applications

Verma,

Kumar,

Sharma

et al. 2024

3 Biotech

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Biotechnological advances in microbial synthesis of gold nanoparticles: Optimizations and applications

Verma,

Kumar,

Sharma

et al. 2024

3 Biotech

View full text Add to dashboard Cite

The combination of nanoparticles (NPs) and endophytes boosts Thyme (Thymus vulgaris L.) resistance to drought by elevating levels of phenolic compounds, flavonoids, and essential oils

Kamyab,

Samsampour,

Ahmadinasab

et al. 2024

Preprint

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To assess the growth and biochemical responses of Thymus vulgaris to the application of iron oxide nanoparticles (Fe2O3 NPs) and endophytes under drought stress, a factorial experiment was designed in a completely randomized design (CRD). Experimental treatments included 4 irrigation levels (100, 75, 50, and 25% FC), 4 levels of Fe2O3 NPs (0, 0.5, 1, and 1.5 mgL− 1), and 3 levels of endophytes (control, bacteria and fungi). Drought stress had a detrimental impact on total dry matter (TDM). Inoculation of plants with endophytes and foliar Fe2O3 NPs spraying played a positive role in preserving and increasing the phenolic and flavonoid contents of thyme under drought-stress conditions. The highest total phenolic content (2.86 mg g− 1 FW) and total flavonoid content (4.54 mg g− 1 FW) were observed in plants treated with bacteria along with 1 mgL− 1 Fe2O3 NPs and fungal treatment with 0.5 mgL− 1 Fe2O3 NPs, respectively, under 25% FC irrigation. Exposure to moderate and severe drought stresses increased the predominant phenolic compounds (p-coumaric acid, caffeic acid, and ferulic acid) in the methanolic extract of thyme. During moderate stress conditions (50% FC), bacterial endophytes exerted a more substantial influence on the elevation of p-coumaric acid compared to fungal endophytes. In response to reduced irrigation levels, the essential oil percentage increased in thyme plants, while the predominant constituents of the essential oil, namely thymol and carvacrol, decreased. Endophytes and Fe2O3 NPs positively influenced the percentage of essential oil and the concentrations of thymol and carvacrol in the essential oil.

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Insecticidal and antioxidant potential of volatile compounds and nanoparticles from Tulbaghia violacea Harv. inoculated with endophytic fungus Beauveria bassiana (Bals.-Criv.) Vuill

Cited by 2 publications

References 64 publications

Biotechnological advances in microbial synthesis of gold nanoparticles: Optimizations and applications

Biotechnological advances in microbial synthesis of gold nanoparticles: Optimizations and applications

The combination of nanoparticles (NPs) and endophytes boosts Thyme (Thymus vulgaris L.) resistance to drought by elevating levels of phenolic compounds, flavonoids, and essential oils

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