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 e cite this article as do i: 10.1111/1758 - 2229.12789 We wish to dedicate this paper to Professor Hans C.P. Matthijs for his enormous contribution to our understanding of cyanobacterial biology and hydrogen peroxide treatments of toxic cyanobacterial blooms. Professor Matthijs passes away on April 17 2016 Title: The response of Microcystis aeruginosa strain MGK to a single or two consecutive H 2 O 2 applications Einat Daniel*, Gad Weiss*, Omer Murik, Assaf Sukenik, Judy Lieman-Hurwitz and Aaron Kaplan** 1 Plants and Environmental Sciences, the Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat Ram, Jerusalem 9190401, Israel. 2 Present address: Medical Genetics Institute, Shaare Zedek Medical Center, Jerusalem, Israel 3 The Yigal Allon Kinneret Limnological Laboratory, Israel Oceanographic and Limnological Research, Migdal, Israel *These authors contributed equally to this study ** Corresponding author: Prof. Aaron Kaplan Plants and Environmental Sciences, the Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat Ram, Jerusalem 9190401, Israel. Email: aaron.kaplan@mail.huji.ac.il Running title: Microcystis response to hydrogen peroxide This article is protected by copyright. All rights reserved.