<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Evidente, Antonio</style></author><author><style face="normal" font="default" size="100%">Masi, Marco</style></author><author><style face="normal" font="default" size="100%">Linaldeddu, Benedetto T.</style></author><author><style face="normal" font="default" size="100%">Franceschini, Antonio</style></author><author><style face="normal" font="default" size="100%">Scanu, Bruno</style></author><author><style face="normal" font="default" size="100%">Cimmino, Alessio</style></author><author><style face="normal" font="default" size="100%">Andolfi, Anna</style></author><author><style face="normal" font="default" size="100%">Motta, Andrea</style></author><author><style face="normal" font="default" size="100%">Maddau, Lucia</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Afritoxinones A and B, dihydrofuropyran-2-ones produced by Diplodia africana the causal agent of branch dieback on Juniperus phoenicea</style></title><secondary-title><style face="normal" font="default" size="100%">PHYTOCHEMISTRY</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Afritoxinones A and B</style></keyword><keyword><style  face="normal" font="default" size="100%">Botryosphaeriaceae</style></keyword><keyword><style  face="normal" font="default" size="100%">Diplodia africana</style></keyword><keyword><style  face="normal" font="default" size="100%">Juniperus phoenicea</style></keyword><keyword><style  face="normal" font="default" size="100%">Phytotoxins</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2012</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2012///</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">77</style></volume><pages><style face="normal" font="default" size="100%">245 - 250</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Two phytotoxic dihydrofuropyran-2-ones, named afritoxinones A and B. were isolated from liquid culture of Diplodia africana. a fungal pathogen responsible for branch dieback of Phoenicean juniper in Italy. Additionally, six others known metabolites were isolated and characterized: oxysporone, sphaeropsidin A, epi-sphaeropsidone, R-(-)-mellein, (3R,4R)-4-hydroxymellein and (3R,4S)-4-hydroxymellein. The structures of afritoxinones A and B were established by spectroscopic and optical methods and determined to be as (3aS{*},6R{*}-,7aS)-6-methoxy-3a,7a-dihydro-3H,6H-furo\{[\}2,3-b]pyran-2-o ne and (3aR{*},6R{*},7aS)-6-methoxy-3a,7a-dihydro-3H,6H-furo\{[\}2,3-b]pyran-2-on e, respectively. The phytotoxic activity of afritoxinones A and B and oxysporone was evaluated on host (Phoenicean juniper) and non-host plant (holm oak, cork oak and tomato) by cutting and leaf puncture assay. Oxysporone proved to be the most phytotoxic compound. This study represents the first report of secondary metabolites produced by D. africana. In addition, the taxonomic implications of secondary metabolites in Botryosphaeriaceae family studies are discussed. (C) 2012 Elsevier Ltd. All rights reserved.</style></abstract><notes><style face="normal" font="default" size="100%">The following values have no corresponding Zotero field:&lt;br/&gt;pub-location: THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND&lt;br/&gt;publisher: PERGAMON-ELSEVIER SCIENCE LTD</style></notes></record></records></xml>