Overexpression of Sly-miR167a delayed postharvest chilling injury of tomato fruit under low temperature storage
文献类型: 外文期刊
作者: Li, Lei 1 ; Wang, Xuanqi 1 ; Lv, Jieyu 1 ; Duan, Wenhui 1 ; Huang, Taishan 1 ; Zhao, Keyan 1 ; Meng, Lanhuan 1 ; Song, Hongmiao 1 ; Wang, Qing 3 ; Xu, Xiangbin 1 ; Li, Jiangkuo 2 ;
作者机构: 1.Hainan Univ, Sch Food Sci & Engn, Key Lab Food Nutr & Funct Food Hainan Prov, Haikou 570228, Peoples R China
2.Natl Engn & Technol Res Ctr Preservat Agr Prod, Tianjin Key Lab Postharvest Physiol & Storage Agr, Tianjin 300384, Peoples R China
3.Beijing Acad Agr & Forestry Sci, Beijing Vegetable Res Ctr, Beijing Key Lab Fruits & Vegetable Storage & Proc, Beijing 100097, Peoples R China
4.Hainan Univ, Sch Food Sci & Engn, Haikou 570228, Peoples R China
5.Natl Engn & Technol Res Ctr Preservat Agr Prod, Tianjin 300384, Peoples R China
关键词: MicroRNA167a; ARF6a; Chilling injury; Tomato fruit; Ethylene
期刊名称:POSTHARVEST BIOLOGY AND TECHNOLOGY ( 影响因子:7.0; 五年影响因子:6.9 )
ISSN: 0925-5214
年卷期: 2023 年 204 卷
页码:
收录情况: SCI
摘要: Chilling injury (CI) of tomato fruit leads to the deterioration of fruit quality, thereby shortening the shelf life of tomato fruit. The present experiment investigates the effect of Sly-miR167a on postharvest cold tolerance of tomato fruit. Results demonstrated that overexpression of Sly-miR167a in tomato fruit effectively reduced electrolyte leakage (EL), hydrogen peroxide (H2O2) content, malondialdehyde (MDA) content and CI index during low temperature storage. Compared with wild-type (WT) and the silencing miR167a by short tandem target mimic (miR167a-STTM) fruit, overexpression of Sly-miR167a (miR167a-OE) fruit accumulated more ascorbic acid (AsA), proline, lycopene, and phenolics, and also maintained higher activities of antioxidant en-zymes. At low temperatures, miR167a-OE fruit sustained better quality, and had lower expression levels of ARF6a, higher levels of ethylene production and higher expression levels of CBF1. Overexpression of Sly-miR167a delayed the appearance of CI symptoms, improving the chilling tolerance of postharvest tomato fruit.
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