Journal
SCIENTIA HORTICULTURAE
Volume 300, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.scienta.2022.111087
Keywords
Cucumis melo L; sodium silicate; wound healing; suberin poly phenolic; texture
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Funding
- National Natural Science Founda-tion of China-Israel International Cooperation Project [31861143046]
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Sodium silicate can enhance plant resistance to biotic stress and promote fruit wound healing through multiple pathways.
Silicon can enhance plant resistance to biotic stress by directly inhibiting pathogens, forming physical barriers, and inducing the synthesis of defense compounds. However, no study is available on silicon on fruit wound healing. Here, we found that sodium silicate enhanced the activities of phenylalanine ammonia-lyase, 4-coumarate coenzyme A ligase, and cinnamate-4-hydroxylase, and elevated levels of cinnamic, rho-coumaric, caffeic, ferulic, sinapic acids, and total phenols at fruit wounds. Sodium silicate accelerated the deposition of suberin poly phenolic and silicon at wounds, increased the hardness and brittleness and reduced their resilience of the healing tissues, which slowed weight loss by wounded fruit, and disease index in fruit subjected to Trichothecium roseum. Taken together, sodium silicate may promote wound healing in muskmelons by activating phenylpropanoid pathway, accelerating suberin poly phenolic and silicon deposition at wounds, and increasing the hardness and brittleness of healing tissues.
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