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10.3390/nano12091418
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Article

Silica Nanoparticles Enhance the Disease Resistance of Ginger to Rhizome Rot during Postharvest Storage

by
Jie Zhou
1,†,
Xuli Liu
1,†,
Chong Sun
1,2,
Gang Li
1,
Peihua Yang
1,
Qie Jia
1,
Xiaodong Cai
1,
Yongxing Zhu
1,*,
Junliang Yin
1,* and
Yiqing Liu
1,*
1
Spice Crops Research Institute, College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China
2
Special Plants Institute, College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing 402160, China
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Nanomaterials 2022, 12(9), 1418; https://doi.org/10.3390/nano12091418
Submission received: 6 March 2022 / Revised: 14 April 2022 / Accepted: 17 April 2022 / Published: 21 April 2022
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Abstract

Silica nanoparticles (SiNPs) offer an ecofriendly and environmentally safe alternative for plant disease management. However, the mechanisms of SiNPs-induced disease resistance are largely unknown. This research evaluated the application of SiNPs in controlling the postharvest decay of ginger rhizomes inoculated with Fusarium solani. In vitro study showed that SiNP had little inhibitory effect on mycelial growth and spore germination of F. solani and did not significantly change mycelium’s MDA content and SDH activity. In vivo analysis indicated that SiNPs decreased the degree of decay around the wounds and decreased the accumulation of H2O2 after long-term pathogenic infection through potentiating the activities of antioxidant enzymes such as SOD, APX, PPO, and CAT. SiNP150 increased the CHI, PAL, and GLU activity at the onset of the experiment. Moreover, SiNP150 treatment increased total phenolics contents by 1.3, 1.5, and 1.2-times after 3, 5, and 7 days of treatment, and increased total flavonoids content throughout the experiment by 9.3%, 62.4%, 26.9%, 12.8%, and 60.8%, respectively. Furthermore, the expression of selected phenylpropanoid pathway-related genes was generally enhanced by SiNPs when subjected to F. solani inoculation. Together, SiNPs can effectively reduce the fungal disease of ginger rhizome through both physical and biochemical defense mechanisms.
Keywords: silica nanoparticles; postharvest decay; fungal disease; Zingiber officinale silica nanoparticles; postharvest decay; fungal disease; Zingiber officinale

Share and Cite

MDPI and ACS Style

Zhou, J.; Liu, X.; Sun, C.; Li, G.; Yang, P.; Jia, Q.; Cai, X.; Zhu, Y.; Yin, J.; Liu, Y. Silica Nanoparticles Enhance the Disease Resistance of Ginger to Rhizome Rot during Postharvest Storage. Nanomaterials 2022, 12, 1418. https://doi.org/10.3390/nano12091418

AMA Style

Zhou J, Liu X, Sun C, Li G, Yang P, Jia Q, Cai X, Zhu Y, Yin J, Liu Y. Silica Nanoparticles Enhance the Disease Resistance of Ginger to Rhizome Rot during Postharvest Storage. Nanomaterials. 2022; 12(9):1418. https://doi.org/10.3390/nano12091418

Chicago/Turabian Style

Zhou, Jie, Xuli Liu, Chong Sun, Gang Li, Peihua Yang, Qie Jia, Xiaodong Cai, Yongxing Zhu, Junliang Yin, and Yiqing Liu. 2022. "Silica Nanoparticles Enhance the Disease Resistance of Ginger to Rhizome Rot during Postharvest Storage" Nanomaterials 12, no. 9: 1418. https://doi.org/10.3390/nano12091418

APA Style

Zhou, J., Liu, X., Sun, C., Li, G., Yang, P., Jia, Q., Cai, X., Zhu, Y., Yin, J., & Liu, Y. (2022). Silica Nanoparticles Enhance the Disease Resistance of Ginger to Rhizome Rot during Postharvest Storage. Nanomaterials, 12(9), 1418. https://doi.org/10.3390/nano12091418

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