<?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%">Belhoucine, Latifa</style></author><author><style face="normal" font="default" size="100%">Bouhraoua, Rachid Tarik</style></author><author><style face="normal" font="default" size="100%">Dahane, Belkheir</style></author><author><style face="normal" font="default" size="100%">PUJADE-VILLAR, JULI</style></author><author><style face="normal" font="default" size="100%">Tarik Bouhraoua, Rachid</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Aperçu biologique du Platypus cylindrus (Fabricius, 1792) (Coleoptera, Curculionidae : Platypodinae) dans les galeries du bois de chêne-liège (Quercus suber L.)</style></title><secondary-title><style face="normal" font="default" size="100%">Orsis: organismes i sistemes</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Algeria.</style></keyword><keyword><style  face="normal" font="default" size="100%">biology</style></keyword><keyword><style  face="normal" font="default" size="100%">Cork oak</style></keyword><keyword><style  face="normal" font="default" size="100%">forest of M’Sila</style></keyword><keyword><style  face="normal" font="default" size="100%">Platypus cylindrus</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2011///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.raco.cat/index.php/Orsis/article/view/244635/327657</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">25</style></volume><pages><style face="normal" font="default" size="100%">105 - 120</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The study of the biology of the insect Platypus cylindrus (Fabricius, 1792) in the galleries of the wood of cork oak was studied on the level of the national forest of M’Sila, littoral Oranian with semi arid climate. For that, 3 trees strongly infested by the pest were cut down between December 2007 and July 2008. The dissection of the 14 wood discs having a volume of 53 dm3 , enabled us to count 2920 individuals with an average density of 55 individuals/dm3 . At any time of the year, at least two stages of each population coexist together with fluctuating rates. The adult insects as well as the larvae are present throughout the period of experimentation. These last constitute the majority of the taken population (78%). The eggs and the nymphs, almost absent for wintry time appear in spring. Some morphological characteristics of larvae and eggs are set.</style></abstract></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%">Belhoucine, Latifa</style></author><author><style face="normal" font="default" size="100%">Bouhraoua, Rachid T</style></author><author><style face="normal" font="default" size="100%">Meijer, Martin</style></author><author><style face="normal" font="default" size="100%">Houbraken, Jos</style></author><author><style face="normal" font="default" size="100%">Harrak, M Jamal</style></author><author><style face="normal" font="default" size="100%">Samson, Robert A</style></author><author><style face="normal" font="default" size="100%">Equihua-Martinez, Armando</style></author><author><style face="normal" font="default" size="100%">PUJADE-VILLAR, JULI</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Mycobiota associated with Platypus cylindrus (Coleoptera: Curculionidae, Platypodidae) in cork oak stands of North West Algeria, Africa</style></title><secondary-title><style face="normal" font="default" size="100%">AFRICAN JOURNAL OF MICROBIOLOGY RESEARCH</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Ambrosia fungi</style></keyword><keyword><style  face="normal" font="default" size="100%">Forest of M'sila (Oran-Algeria)</style></keyword><keyword><style  face="normal" font="default" size="100%">Platypus cylindrus</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercus suber</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2011</style></year></dates><publisher><style face="normal" font="default" size="100%">ACADEMIC JOURNALS</style></publisher><pub-location><style face="normal" font="default" size="100%">P O BOX 5170-00200 NAIROBI, VICTORIA ISLAND, LAGOS 73023, NIGERIA</style></pub-location><volume><style face="normal" font="default" size="100%">5</style></volume><pages><style face="normal" font="default" size="100%">4411-4423</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Platypus cylindrus (Coleoptera: Curculionidae, Platypodidae) is an important insect pest of the cork oak. These beetles maintain symbiotic relationships with many fungi that serve especially as food for the adults and larvae but also intervene in the mechanisms of establishment of the insect by further weakening the host-tree. 270 samples were taken by 3 sources: Galleries (30), mycangia and intestinal contents of male and female insects and intestinal contents of mature larvae (60 each). The results show the presence of 42 species of ambrosia fungi among which 17 are new to this association. The mycetophagy of these beetles is very rich and consisted essentially of Ophiostomatales. Other groups of fungi playing different roles were also isolated: entomopathogenic, antagonistic, saprophytic but especially pathogenic for the tree host. This group consists of many species and their dissemination by the insect and the inoculation in trees may have fatal consequences by accelerating the cycle of declining affected trees. In the present paper, we discuss the fungal species associated to the beetle, identified on the basis of phenotypic characters and ribosomal DNA sequences analysis, and their relationship with P. cylindrus.</style></abstract></record></records></xml>