<?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%">Andolfi, Anna</style></author><author><style face="normal" font="default" size="100%">Maddau, Lucia</style></author><author><style face="normal" font="default" size="100%">Cimmino, Alessio</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%">Serra, Salvatorica</style></author><author><style face="normal" font="default" size="100%">Basso, Sara</style></author><author><style face="normal" font="default" size="100%">Melck, Dominique</style></author><author><style face="normal" font="default" size="100%">Evidente, Antonio</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Cyclobotryoxide, a phytotoxic metabolite produced by the plurivorous pathogen Neofusicoccum australe.</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of natural products</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Ascomycota</style></keyword><keyword><style  face="normal" font="default" size="100%">Ascomycota: chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Bicyclo Compounds, Heterocyclic</style></keyword><keyword><style  face="normal" font="default" size="100%">Bicyclo Compounds, Heterocyclic: chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Bicyclo Compounds, Heterocyclic: isolation &amp; purif</style></keyword><keyword><style  face="normal" font="default" size="100%">Bicyclo Compounds, Heterocyclic: pharmacology</style></keyword><keyword><style  face="normal" font="default" size="100%">Catechols</style></keyword><keyword><style  face="normal" font="default" size="100%">Cyclohexanones</style></keyword><keyword><style  face="normal" font="default" size="100%">Cyclohexanones: chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Cyclohexanones: isolation &amp; purification</style></keyword><keyword><style  face="normal" font="default" size="100%">Cyclohexanones: pharmacology</style></keyword><keyword><style  face="normal" font="default" size="100%">Juniperus</style></keyword><keyword><style  face="normal" font="default" size="100%">Juniperus: microbiology</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular Structure</style></keyword><keyword><style  face="normal" font="default" size="100%">mycotoxins</style></keyword><keyword><style  face="normal" font="default" size="100%">Mycotoxins: chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Mycotoxins: isolation &amp; purification</style></keyword><keyword><style  face="normal" font="default" size="100%">Mycotoxins: pharmacology</style></keyword><keyword><style  face="normal" font="default" size="100%">Nuclear Magnetic Resonance, Biomolecular</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus: drug effects</style></keyword><keyword><style  face="normal" font="default" size="100%">Stereoisomerism</style></keyword><keyword><style  face="normal" font="default" size="100%">Vitis</style></keyword><keyword><style  face="normal" font="default" size="100%">Vitis: drug effects</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><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/23046443</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">75</style></volume><pages><style face="normal" font="default" size="100%">1785 - 91</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Two isolates of Neofusicoccum australe belonging to ITS haplotypes H4 and H1 and associated with grapevine cordon dieback and branch dieback of Phoenicean juniper, respectively, have been shown to produce in vitro structurally different secondary metabolites. From the strain BOT48 of N. australe (haplotype H4) a new cyclohexenone oxide, namely, cyclobotryoxide, was isolated together with 3-methylcatechol and tyrosol. Cyclobotryoxide was characterized as (1S,5R,6S)-5-hydroxy-3-methoxy-4-methyl-7-oxabicyclo[4.1.0]hept-3-en-2-one by spectroscopic, optical, and chemical methods. The strain BL24 (haplotype H1) produced tyrosol along with botryosphaerone D and (3S,4S)-3,4,8-trihydroxy-6-methoxy-3,4-dihydro-1(2H)-naphthalenone. The metabolites obtained from both strains were tested at four concentrations on leaves of grapevine cv. Cannonau, holm oak, and cork oak by the leaf puncture assay. Cyclobotryoxide proved to be the most phytotoxic compound. Tyrosol and cyclobotryoxide were also tested on detached grapevine leaves at concentrations of 0.25 and 0.5 mg/mL. Only cyclobotryoxide was found to be active in this bioassay.</style></abstract><issue><style face="normal" font="default" size="100%">10</style></issue><notes><style face="normal" font="default" size="100%">The following values have no corresponding Zotero field:&lt;br/&gt;accession-num: 23046443</style></notes></record><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%">Giorgio, Egidio</style></author><author><style face="normal" font="default" size="100%">Maddau, Lucia</style></author><author><style face="normal" font="default" size="100%">Spanu, Emanuela</style></author><author><style face="normal" font="default" size="100%">Evidente, Antonio</style></author><author><style face="normal" font="default" size="100%">Rosini, Carlo</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Assignment of the Absolute Configuration of (+)-Diplopyrone, the Main Phytotoxin Produced by Diplodia mutila, the Pathogen of the Cork Oak Decline, by a Nonempirical Analysis of Its Chiroptical Properties†</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of Organic Chemistry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">absolute configuration</style></keyword><keyword><style  face="normal" font="default" size="100%">Circular dichroism</style></keyword><keyword><style  face="normal" font="default" size="100%">DeVoe method</style></keyword><keyword><style  face="normal" font="default" size="100%">diplopyrone (voyant)</style></keyword><keyword><style  face="normal" font="default" size="100%">Mitosporic Fungi</style></keyword><keyword><style  face="normal" font="default" size="100%">Mitosporic Fungi: pathogenicity</style></keyword><keyword><style  face="normal" font="default" size="100%">Models</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular</style></keyword><keyword><style  face="normal" font="default" size="100%">Molecular Structure</style></keyword><keyword><style  face="normal" font="default" size="100%">mycotoxins</style></keyword><keyword><style  face="normal" font="default" size="100%">Mycotoxins: chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Optical rotation</style></keyword><keyword><style  face="normal" font="default" size="100%">Plant Diseases</style></keyword><keyword><style  face="normal" font="default" size="100%">Plant Diseases: microbiology</style></keyword><keyword><style  face="normal" font="default" size="100%">Pyrones</style></keyword><keyword><style  face="normal" font="default" size="100%">Pyrones: chemistry</style></keyword><keyword><style  face="normal" font="default" size="100%">Stereoisomerism</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2004</style></year></dates><publisher><style face="normal" font="default" size="100%">American Chemical Society</style></publisher><volume><style face="normal" font="default" size="100%">70</style></volume><pages><style face="normal" font="default" size="100%">7-13</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The nonempirical assignment of the absolute configuration of (+)-diplopyrone, the main phytotoxin of Diplodia mutila, i.e., an endophytic fungus, widespread in Sardinian oak forests, and considered one of the main causes of cork oak decline, has been approached by two different methods:? (a) the exciton analysis of the circular dichroism (CD) spectrum and (b) the ab initio calculation of the optical rotatory power. Both methods indicate that (+)-diplopyrone is 6-[(1S)-1-hydroxyethyl]-2,4a(S),6(R),8a(S)-tetrahydropyrano[3,2-b]pyran-2-one, so the stereostructure of this important biomolecule is safely determined for the first time. A comparison of advantages and limitations of the two methods of analysis is also presented.</style></abstract><accession-num><style face="normal" font="default" size="100%">15624901</style></accession-num><notes><style face="normal" font="default" size="100%">From Duplicate 2 (Assignment of the Absolute Configuration of (+)-Diplopyrone, the Main Phytotoxin Produced by Diplodia mutila, the Pathogen of the Cork Oak Decline, by a Nonempirical Analysis of Its Chiroptical Properties† - Giorgio, Egidio; Maddau, Lucia; Spanu, Emanuela; Evidente, Antonio; Rosini, Carlo)</style></notes><research-notes><style face="normal" font="default" size="100%">From Duplicate 2 (Assignment of the Absolute Configuration of (+)-Diplopyrone, the Main Phytotoxin Produced by Diplodia mutila, the Pathogen of the Cork Oak Decline, by a Nonempirical Analysis of Its Chiroptical Properties† - Giorgio, Egidio; Maddau, Lucia; Spanu, Emanuela; Evidente, Antonio; Rosini, Carlo)</style></research-notes></record></records></xml>