Trehalose:A sugar molecule involved in temperature stress management in plants  

作　　者：Ali Raza Savita Bhardwaj Md Atikur Rahman Pedro García-Caparrós Madiha Habib Faisal Saeed Sidra Charagh Christine H.Foyer Kadambot H.M.Siddique Rajeev K.Varshney 

机构地区：[1]College of Agriculture,Fujian Agriculture and Forestry University(FAFU),Fuzhou 350002,Fujian,China [2]Department of Botany,School of Bioengineering and Biosciences,Lovely Professional University,Phagwara 144411,India [3]Department of Botany,MCM DAV College,Kangra,Himachal Pradesh 176001,India [4]Grassland and Forage Division,National Institute of Animal Science,Rural Development Administration,Cheonan 31000,Republic of Korea [5]Agronomy Department of Superior School Engineering,University of Almería,Almería,Spain [6]National Institute for Genomics and Advanced Biotechnology,National Agricultural Research Centre,Park Rd.,Islamabad 45500,Pakistan [7]Agriculture,Health and Environment Department,Natural Resources Institute,Faculty of Engineering&Science,University of Greenwich,Kent ME44TB,UK [8]State Key Laboratory of Rice Biology,China National Rice Research Institute,Chinese Academy of Agricultural Sciences,Hangzhou,Zhejiang,China [9]School of Biosciences,College of Life and Environmental Sciences,University of Birmingham,Edgbaston B152TT,UK [10]The UWA Institute of Agriculture,The University of Western Australia,Crawley,Perth 6009,Australia [11]WA State Agricultural Biotechnology Centre,Centre for Crop and Food Innovation,Food Futures Institute,Murdoch University,Murdoch,WA 6150,Australia

出　　处：《The Crop Journal》2024年第1期1-16,共16页作物学报（英文版）

基　　金：supported by the Food Futures Institute of Murdoch University to Rajeev K.Varshney.

摘　　要：Trehalose(Tre)is a non-reducing disaccharide found in many species,including bacteria,fungi,invertebrates,yeast,and even plants,where it acts as an osmoprotectant,energy source,or protein/membrane protector.Despite relatively small amounts in plants,Tre concentrations increase following exposure to abiotic stressors.Trehalose-6-phosphate,a precursor of Tre,has regulatory functions in sugar metabolism,crop production,and stress tolerance.Among the various abiotic stresses,temperature extremes(heat or cold stress)are anticipated to impact crop production worldwide due to ongoing climate changes.Applying small amounts of Tre can mitigate negative physiological,metabolic,and molecular responses triggered by temperature stress.Trehalose also interacts with other sugars,osmoprotectants,amino acids,and phytohormones to regulate metabolic reprogramming that underpins temperature stress adaptation.Transformed plants expressing Tre-synthesis genes accumulate Tre and show improved stress tolerance.Genome-wide studies of Tre-encoding genes suggest roles in plant growth,development,and stress tolerance.This review discusses the functions of Tre in mitigating temperature stress—highlighting genetic engineering approaches to modify Tre metabolism,crosstalk,and interactions with other molecules—and in-silico approaches for identifying novel Tre-encoding genes in diverse plant species.We consider how this knowledge can be used to develop temperature-resilient crops essential for sustainable agriculture.

关 键 词：Abiotic stress Gene expression Genetic engineering OSMOLYTE Trehalose-6-phosphate 

分 类 号：Q945.78[生物学—植物学]