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. 2022 Nov 22;22(1):540.
doi: 10.1186/s12870-022-03912-2.

Nanopriming-mediated memory imprints reduce salt toxicity in wheat seedlings by modulating physiobiochemical attributes

Tahir Farooq  1 , Muhammad Naveed Akram  2 , Amjad Hameed  3 , Toheed Ahmed  4 , Arruje Hameed  5
Affiliations

Nanopriming-mediated memory imprints reduce salt toxicity in wheat seedlings by modulating physiobiochemical attributes

Tahir Farooq et al. BMC Plant Biol. .

Abstract

Background: Around the globe, salinity is one of the serious environmental stresses which negatively affect rapid seed germination, uniform seedling establishment and plant developments restricting sustainable agricultural productivity. In recent years, the concepts of sustainable agriculture and cleaner production strategy have emphasized the introduction of greener agrochemicals using biocompatible and natural sources to maximize crop yield with minimum ecotoxicological effects. Over the last decade, the emergence of nanotechnology as a forefront of interdisciplinary science has introduced nanomaterials as fast-acting plant growth-promoting agents.

Results: Herein, we report the preparation of nanocomposite using chitosan and green tea (CS-GTE NC) as an ecofriendly nanopriming agent to elicit salt stress tolerance through priming imprints. The CS-GTE NC-primed (0.02, 0.04 and 0.06%), hydroprimed and non-primed (control) wheat seeds were germinated under normal and salt stress (150 mM NaCl) conditions. The seedlings developed from aforesaid seeds were used for physiological, biochemical and germination studies. The priming treatments increased protein contents (10-12%), photosynthetic pigments (Chl a (4-6%), Chl b (34-36%), Total Chl (7-14%) and upregulated the machinery of antioxidants (CAT (26-42%), POD (22-43%)) in wheat seedlings under stress conditions. It also reduced MDA contents (65-75%) and regulated ROS production resulting in improved membrane stability. The priming-mediated alterations in biochemical attributes resulted in improved final germination (20-22%), vigor (4-11%) and germination index (6-13%) under both conditions. It reduced mean germination time significantly, establishing the stress-insulating role of the nanocomposite. The improvement of germination parameters validated the stimulation of priming memory in composite-treated seeds.

Conclusion: Pre-treatment of seeds with nanocomposite enables them to counter salinity at the seedling development stage by means of priming memory warranting sustainable plant growth and high crop productivity.

Keywords: Salinity; Seed priming; Stress acclimation; Stress tolerance; Wheat.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
SEM micrograph of the composite of chitosan and green tea extract
Fig. 2
Fig. 2
XRD spectra of the composite of chitosan and green tea extract
Fig. 3
Fig. 3
FTIR spectra of the composite of chitosan and green tea extract
Fig. 4
Fig. 4
Effect of green tea extract priming on total phenolic (TPC) and MDA contents in wheat seedlings under salt stress
Fig. 5
Fig. 5
Effect of green tea extract priming on total soluble protein (TSP) contents in wheat seedlings under salt stress
Fig. 6
Fig. 6
Effect of green tea extract priming on cell membrane stability in wheat seedlings under salt stress
See this image and copyright information in PMC

References

    1. Jastrzębska M, Kostrzewska M, Saeid A. Sustainable agriculture: A challenge for the future. Smart Agrochemicals for Sustainable Agriculture: Elsevier; 2022. pp. 29–56.
    1. Ozdemir D. The impact of climate change on agricultural productivity in Asian countries: a heterogeneous panel data approach. Environ Sci Pollut Res. 2022;29(6):8205–8217. doi: 10.1007/s11356-021-16291-2. - DOI - PubMed
    1. Lin H-I, Yu Y-Y, Wen F-I, Liu P-T. Status of Food Security in East and Southeast Asia and Challenges of Climate Change. Climate. 2022;10(3):40. doi: 10.3390/cli10030040. - DOI
    1. Mukhopadhyay R, Sarkar B, Jat HS, Sharma PC, Bolan NS. Soil salinity under climate change: Challenges for sustainable agriculture and food security. J Environ Manage. 2021;280:111736. doi: 10.1016/j.jenvman.2020.111736. - DOI - PubMed
    1. Sheteiwy M, Ulhassan Z, Qi W, Lu H, AbdElgawad H, Minkina T, et al. Association of jasmonic acid priming with multiple defense mechanisms in wheat plants under high salt stress. Front Plant Sci. 2022;13:886862. doi: 10.3389/fpls.2022.886862. - DOI - PMC - PubMed

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