This article is protected by copyright. All rights reserved Nitrate content in a collection of higher mushrooms RENÁTA BÓBICS, DÁNIEL KRÜZSELYI, AND JÁNOS VETTER* Department of Botany, Faculty of Veterinary Science, Szent István University, Rottenbiller 50, 1077 Budapest, Hungary ABSTRACT BACKGROUND. Data of mushroom nitrate content from scientific studies is limited. There have been two such recent investigations (mainly regarding certain cultivated species). To obtain comparable analytical data, we analyzed 134 samples of 54 taxa gathered and prepared by our Department. RESULTS. The mushroom species were evaluated according to their nutritional types: saprotrophic, mycorrhizal and wood-decaying groups. Low and relative invariable contents were found in the mycorrhizal (216.5 mg kg -1 dry matter [D.M.] and wood-decaying groups (228.6 mg kg -1 D.M.), but in the saprotrophic group we observed wide variability (151.4 – 12715 mg kg -1 D.M.). 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/jsfa.7108