title: Salicylic-Acid-Induced Chilling- and Oxidative-Stress Tolerance in Relation to Gibberellin Homeostasis, C-Repeat/Dehydration-Responsive Element Binding Factor Pathway, and Antioxidant Enzyme Systems in Cold-Stored Tomato Fruit.
abstract: Effects of salicylic acid (SA) on gibberellin (GA) homeostasis, C-repeat/dehydration-responsive element binding factor (CBF) pathway, and antioxidant enzyme systems linked to chilling- and oxidative-stress tolerance in tomato fruit were investigated. Mature green tomatoes (Solanum lycopersicum L. cv. Moneymaker) were treated with 0, 0.5, and 1 mM SA solution for 15 min before storage at 4 °C for 28 days. In comparison to 0 or 0.5 mM SA, 1 mM SA significantly decreased the chilling injury (CI) index in tomato fruit. In the SA-treated fruit, the upregulation of GA biosynthetic gene (GA3ox1) expression was followed by gibberellic acid (GA3) surge and DELLA protein degradation. CBF1 participated in the SA-modulated tolerance and stimulated the expression of GA catabolic gene (GA2ox1). Furthermore, 1 mM SA enhanced activities of antioxidant enzymes and, thus, reduced reactive oxygen species accumulation. Our findings suggest that SA might protect tomato fruit from CI and oxidative damage through regulating GA metabolism, CBF1 gene expression, and antioxidant enzyme activities.
authors.affiliation: Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences , Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, People's Republic of China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Ding
authors.affiliation: Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences , Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, People's Republic of China.
authors.forename: Jinhong
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences , Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, People's Republic of China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Nie
authors.affiliation: Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences , Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, People's Republic of China.
authors.forename: Bei
authors.initials: B
authors.lastname: Fan
authors.affiliation: Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences , Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, People's Republic of China.
authors.forename: Shujuan
authors.initials: S
authors.lastname: Wu
authors.affiliation: Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences , Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, People's Republic of China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: School of Agricultural Economics and Rural Development, Renmin University of China , Beijing 100872, People's Republic of China.
authors.forename: Jiping
authors.initials: J
authors.lastname: Sheng
authors.affiliation: College of Food Science and Nutritional Engineering, China Agricultural University , Beijing 100083, People's Republic of China.
authors.forename: Lin
authors.initials: L
authors.lastname: Shen
authors.affiliation: College of Food Science and Nutritional Engineering, China Agricultural University , Beijing 100083, People's Republic of China.
authors.forename: Ruirui
authors.initials: R
authors.lastname: Zhao
authors.affiliation: Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences , Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, People's Republic of China.
authors.forename: Xuanming
authors.initials: X
authors.lastname: Tang
mesh_terms: D000975:Antioxidants / Q000378:metabolism*; D003080:Cold Temperature; D004798:Enzymes / Q000235:genetics / Q000378:metabolism; D061353:Food Storage; D018506:Gene Expression Regulation, Plant / Q000187:drug effects; D005875:Gibberellins / Q000235:genetics / Q000378:metabolism*; D006706:Homeostasis; D018551:Solanum lycopersicum / Q000187:drug effects / Q000235:genetics / Q000378:metabolism*; D053858:Metabolic Networks and Pathways / Q000187:drug effects / Q000235:genetics; D018384:Oxidative Stress / Q000187:drug effects*; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism; D017382:Reactive Oxygen Species / Q000378:metabolism; D020156:Salicylic Acid / Q000378:metabolism / Q000494:pharmacology*
chemical_list: D000975:Antioxidants; D004798:Enzymes; D005875:Gibberellins; D010940:Plant Proteins; D017382:Reactive Oxygen Species; C007842:gibberellic acid; D020156:Salicylic Acid
keywords: CBF pathway; antioxidant enzyme systems; chilling tolerance; gibberellin homeostasis; salicylic acid; tomato fruit