Skip to main content
Log in

Size variations of mesoporous silica nanoparticle control uptake efficiency and delivery of AC2-derived dsRNA for protection against tomato leaf curl New Delhi virus

  • Original Article
  • Published:
Plant Cell Reports Aims and scope Submit manuscript

Abstract

Key message

We report the size dependent uptake of dsRNA loaded MSNPs into the leaves and roots of Nicotiana benthamiana plants and accessed for their relative reduction in Tomato leaf curl New Delhi viral load.

Abstract

A non-GMO method of RNA interference (RNAi) has been recently in practice through direct delivery of double stranded RNA into the plant cells. Tomato leaf curl New Delhi virus (ToLCNDV), a bipartitie begomovirus, is a significant viral pathogen of many crops in the Indian subcontinent. Conventional RNAi cargo delivery strategies for instance uses viral vectors and Agrobacterium-facilitated delivery, exhibiting specific host responses from the plant system. In the present study, we synthesized three different sizes of amine-functionalized mesoporous silica nanoparticles (amino-MSNPs) to mediate the delivery of dsRNA derived from the AC2 (dsAC2) gene of ToLCNDV and showed that these dsRNA loaded nanoparticles enabled effective reduction in viral load. Furthermore, we demonstrate that amino-MSNPs protected the dsRNA molecules from nuclease degradation, while the complex was efficiently taken up by the leaves and roots of Nicotiana benthamiana. The real time gene expression evaluation showed that plants treated with nanoparticles of different sizes ~ 10 nm (MSNPDEA), ~ 32 nm (MSNPTEA) and ~ 66 nm (MSNPNH3) showed five-, eleven- and threefold reduction of ToLCNDV in N. benthamiana, respectively compared to the plants treated with naked dsRNA. This work clearly demonstrates the size dependent internalization of amino-MSNPs and relative efficacy in transporting dsRNA into the plant system, which will be useful in convenient topical treatment to protect plants against their pathogens including viruses.

Graphical abstract

Mesoporous silica nanoparticles loaded with FITC, checked for its uptake into Nicotiana benthamiana.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Scheme 1
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5

Similar content being viewed by others

Data availability

All data generated for this research have been incorporated in the article/Supplementary Files.

References

Download references

Acknowledgements

A.S. acknowledges University Grants Commission (UGC), for financial support as research fellowship. N.S. and B.M acknowledge research funding from National Agricultural Science Fund (NASF), ICAR, India (NASF/ABP-7021/2018-19/256). We thank CRF (IITD) for HR-TEM, FE-SEM, FTIR, XRD and SAXS facilities. We specially thank Gurdeep Kaur (TERI Gram) and Dr P.M. Reddy (TERI Gram) for their help in the final revision of the manuscript.

Funding

This study was supported by the ICAR-National Agricultural Science Fund (Grant No. NASF/ABP-7021/2018-19/256).

Author information

Authors and Affiliations

Authors

Contributions

AS: data curation, methodology, visualization, original draft; DG: methodology, visualization, review and editing, OSW: review and editing; AR: review and editing; SKM: review and editing; BM: conceptualization, visualization, supervision, review and editing; NS: conceptualization, visualization, supervision, review and editing.

Corresponding authors

Correspondence to Bikash Mandal or Neetu Singh.

Ethics declarations

Conflict of interest

The authors declare no conflict of interest.

Additional information

Communicated by Om Parkash Parkash Dhankher.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (DOCX 6116 KB)

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Sangwan, A., Gupta, D., Singh, O.W. et al. Size variations of mesoporous silica nanoparticle control uptake efficiency and delivery of AC2-derived dsRNA for protection against tomato leaf curl New Delhi virus. Plant Cell Rep 42, 1571–1587 (2023). https://doi.org/10.1007/s00299-023-03048-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00299-023-03048-z

Keywords

Navigation