1 “Biotech Method” Promoter choice impacts the efficiency of plant glyco-engineering † Somanath Kallolimath 1 , Clemens Gruber 2 , Herta Steinkellner 1 , Alexandra Castilho 1* 1 Department of Applied Genetics and Cell Biology, 2 Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Austria) * Corresponding author: Alexandra Castilho Department of Applied Genetics and Cell Biology University of Natural Resources and Life Sciences Muthgasse 18, 1190 Vienna, Austria, Tel: +43-1-47654-6701, Fax: 43-1-47654-6392, Alexandra.castilho@boku.ac.at † This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: [10.1002/biot.201700380]. This article is protected by copyright. All rights reserved Received: May 29, 2017 / Revised: July 20, 2017 / Accepted: July 25, 2017