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Effect of the addition of fungal extracellular biogenic zinc oxide nanoparticles on the in vitro multiplication of Agave salmiana shoots

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Abstract

Using nanoparticles in agriculture requires a positive and eco-friendly response and a better understanding of their effects on plant cultures. Micropropagation is a recourse for the mass production and rescue of plant species that uses biotechnological tools in which it is possible to include nanoparticles for different purposes. In this study, zinc oxide nanoparticles (ZNPs) with an average size of 70 nm were biosynthesized with cell-free filtrate (CFF) from Mucor fragilis, the addition of ZNPs to the shoots of Agave salmiana var. Ayoteco, in their multiplication stage, was evaluated. Agave seedlings treated with ZNPs generally showed organogenesis after 20 days, with an optimal production of 18 shoots. Depending on the treatment applied, the combination of NPs and intermediate concentrations of the studied regulators caused a modification of the structures in the shoots and seedlings, mainly in the stomata, without the accumulation of ZnO. The antioxidant activity in shoots and seedlings depended on the stress generated by abiotic agents, such as growth regulators and NPs, to which they were exposed.

Key message

The combination of extracellular biogenic zinc oxide nanoparticles and growth regulators reduced the time required for shoot generation in A. salmiana while simultaneously preventing microbial contamination of the culture medium.

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Acknowledgements

We thank MM R. Gonzalez-Montes de Oca and Dr. M.A. Hernández Pérez for SEM and XRD analysis. We also thank the National Council for Science and Technology (CONACYT-Mexico) for A.I. Canales-Mendoza scholarship (813864).

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No funding was received to assist with the preparation of this manuscript.

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Authors

Contributions

AICM - conceptualization, implementation of the experimental methodology, research, and writing of the original draft. MVI - conceptualization, design of the experimental methodology, research, supervision, validation, writing—revision, and editing. XTJ - supervision, validation, statistical analysis. JAC - supervision, validation of experimental methodology. All authors discussed the results and contributed to the final manuscript.

Corresponding author

Correspondence to Maricela Villanueva-Ibáñez.

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All authors declare that they have no conflicts of interest.

Additional information

Communicated by Melekşen Akın.

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Canales-Mendoza, A.I., Villanueva-Ibáñez, M., Tovar-Jiménez, X. et al. Effect of the addition of fungal extracellular biogenic zinc oxide nanoparticles on the in vitro multiplication of Agave salmiana shoots. Plant Cell Tiss Organ Cult 155, 479–491 (2023). https://doi.org/10.1007/s11240-023-02589-1

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  • DOI: https://doi.org/10.1007/s11240-023-02589-1

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