Please cite this article as: Czégény Gyula, Martret Bénédicte Le, Pávkovics Dóra, Dix Philip J, HidegÉva.Elevated ROS-scavenging enzymes contribute to acclimation to UV-B exposure in transplastomic tobacco plants, reducing the role of plastid peroxidases.Journal of Plant Physiology http://dx.doi.org/10. 1016/j.jplph.2016.05.026 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. 1 JPLPH-D-16-00134 revised Title:Elevated ROS-scavenging enzymes contribute to acclimation to UV-B exposure in transplastomic tobacco plants, reducing the role of plastid peroxidases Authors:Gyula SummaryLeaf peroxidases play a key role in the successful acclimation of plants to low UV-B doses.The aim of the present study was to examine whether selective enhancement of alternative HTPA, hydroxyterephthalate; NBT, nitroblue tetrazolium; PAR, photosynthetically active radiation; PH, wild type 'Petit Havana' tobacco; POD, total peroxidase; SOD, superoxide dismutase; TPA, terephthalic acid; Trolox, 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid); -UV, plants exposed to PAR and supplemental UV radiation; WT, wild type;PSII, light acclimated effective quantum yield of PSII