<?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 T</style></author><author><style face="normal" font="default" size="100%">Prats, Eva</style></author><author><style face="normal" font="default" size="100%">Pulade-Villar, Juli</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Fine structure and functional comments of mouthparts in Platypus cylindrus (Col., Curculionidae: Platypodinae)</style></title><secondary-title><style face="normal" font="default" size="100%">Micron</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Ambrosia beetle</style></keyword><keyword><style  face="normal" font="default" size="100%">Fine structure</style></keyword><keyword><style  face="normal" font="default" size="100%">Mouthpart</style></keyword><keyword><style  face="normal" font="default" size="100%">Platypus cylindrus</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2013</style></year></dates><volume><style face="normal" font="default" size="100%">45</style></volume><pages><style face="normal" font="default" size="100%">74-82</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Oak pinhole borer, Platypus cylindrus is seen in recent years as one of the biggest enemies directly involved in the observed decline of cork oak in Mediterranean forests with all the economic implications. As an ambrosia beetle, it has developed its effective drilling mouthpart enough to make tunnels in hardwood of the tree. The fine structural aspects of the mouthpart using the field emission scanning electron microscopy are analyzed about 23 adults collected in galleries of infested cork oak trees (Quercus suber) in a littoral forest of northwest Algeria. These adults are preserved in alcohol 70%, cleaned and coated with gold. The mouthparts of this beetle consist commonly of a labrum, a pair of mandibles, a pair of maxillae and the labium but with adapted structure to excavate galleries in the hardwood. In this role is also involved the first pair of legs. The function that present the different structures related to the construction of the tunnels is discussed. Both of maxillary and labial palpi direct the food to the mouth and hold it while the mandibles chew the food. The distal ends of these palpi are flattened and have shovel-like setae. Females have larger maxillary palpi than males and this is related to the particular biology of each sex.</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>