title: Alleviation of chilling injury in tomato fruit by exogenous application of oxalic acid.
abstract: The effects of oxalic acid on the development of chilling injury (CI), energy metabolism and lycopene metabolism in tomato fruit (Solanum lycopersicum L.) were investigated. Mature green tomatoes were dipped in 10mmoll(-1) oxalic acid (OA) solution for 10min at 25°C. Tomatoes were subsequently stored at 4±0.5°C for 20days before being transferred to 25°C for 12days. Oxalic acid treatment apparently alleviated CI development and membrane damage; maintained higher levels of ATP and ADP; increased activities of succinic dehydrogenase (SDH), Ca(2+)-adenosine triphosphatase (Ca(2+)-ATPase) and H(+)-adenosine triphosphatase (H(+)-ATPase); and elevated lycopene accumulation associated with the upregulation of PSY1 and ZDS expression in tomatoes during a period at room temperature following exposure to chilling stress. Thus, oxalic acid treatment benefited the control of CI and the maintenance of fruit quality in tomatoes stored for long periods (approximately 32days).
authors.affiliation: College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China; College of Food Science and Biotechnology, Henan University of Science and Technology, Luoyang 471023, China.
authors.forename: Peiyan
authors.initials: P
authors.lastname: Li
authors.affiliation: College of Agriculture, Henan University of Science and Technology, Luoyang 471023, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Yin
authors.affiliation: College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China.
authors.forename: Lijun
authors.initials: L
authors.lastname: Song
authors.affiliation: College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China. Electronic address: zheng9393@163.com.
authors.forename: Xiaolin
authors.initials: X
authors.lastname: Zheng
mesh_terms: D000255:Adenosine Triphosphate / Q000378:metabolism; D002338:Carotenoids / Q000378:metabolism; D003080:Cold Temperature; D004734:Energy Metabolism / Q000187:drug effects; D005519:Food Preservation; D005638:Fruit / Q000737:chemistry / Q000378:metabolism; D000077276:Lycopene; D018551:Solanum lycopersicum / Q000737:chemistry / Q000378:metabolism*; D019815:Oxalic Acid / Q000494:pharmacology*
chemical_list: D002338:Carotenoids; D000255:Adenosine Triphosphate; D019815:Oxalic Acid; D000077276:Lycopene
keywords: Chilling injury; Energy metabolism; Lycopene metabolism; Oxalic acid; Storage; Tomato fruit