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ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Crop and Product Physiology
Volume 16 - 2025 | doi: 10.3389/fpls.2025.1567183
This article is part of the Research Topic Physiological Regulation during the Full Supply Chain of Fruit and Vegetables: Main Challenges from Plant Growth to Product Sales View all articles
Optimization of the optimal hormone formula for kiwifruit and analysis of its storage characteristics
Provisionally accepted- 1 Hunan university of Applied Technology, Changde, China
- 2 Hunan Biological Electromechanical Vocational Technical College, Changsha, China
- 3 Hunan Agricultural University, Changsha, Hunan, China
- 4 Hunan University of Arts and Science, Changde, Hunan, China
To extend the postharvest storage duration of kiwifruit, we conducted a study using 'Yan Nong 3' kiwifruit as our test material. The fruits were treated with varying concentrations of Brassinolide (BRs), melatonin (MT), methyl jasmonate (MeJA) and salicylic acid (SA), respectively. Subsequently, on the basis of a one-way test, an orthogonal experiment was designed with fruit hardness as an indicator (7 days of storage at room temperature) to obtain the optimal process formulation for phytohormone synergistic treatment (PEHC): 10 μmol•L⁻¹ for BRs, 200 μmol•L⁻¹ for MT, 300 μmol•L⁻¹ for MeJA, and 2 mmol•L⁻¹ for SA. The results showed that after 60 days of storage at 4°C, PEHC was found to increase the good fruit rate and the hardness of kiwifruit by 5.97% and 67.42%, respectively, compared to the control.PEHC reduced weight loss rate and disease index, slowed the decrease in titratable acid content (TAC) and vitamin C (VC) content, maintained color, and delayed the accumulation of SSC. At 80 days of storage, the hardness, good fruit rate, VC content, and TAC of PEHC increased by 68.38%, 28.87%, 17.66 mg•100 g -1 , and 19.15%, respectively, compared to the control. Whereas, the difference in SSC of PEHC compared to control was nosignificant. The PEHC reduced the content of 1-Aminocyclopropane-1-carboxylate (ACC). Transcriptomics revealed that PEHC inhibited the gene expression levels of Acc08469 in s-adenosylmethionine synthetase (MetK), as well as Acc20538, Acc24995, and Acc17490 in 1-aminocyclopropane-1-carboxylic acid oxidase. Using metabolomics, PEHC increased the relative contents of acids and amino acids and decreased the relative contents of aroma, pigments or phenolics, and soluble sugars compared with the control, of which the trends of changes in acids and soluble sugars were consistently
Keywords: Kiwifruit, Hormones, Hardness, quality, Orthogonal experiment, metabolomic, transcriptomic
Received: 26 Jan 2025; Accepted: 19 Mar 2025.
Copyright: © 2025 HE, QIN, HE, LIU, WANG, WANG and Hao. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Shi Hao, Hunan University of Arts and Science, Changde, 415000, Hunan, China
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