华山松大小蠹带菌部位及贮菌器结构研究

研究了秦岭林区华山松大小蠹带菌部位及贮菌器结构，结果表明：华山松大小蠹成虫具有前胸背板体壁凹陷和刺毛构成的贮菌器，用于携带和传播真菌，其所携带真菌种类以穿孔细帚霉和小线嘴壳为主，以真菌孢子为唯一携带方式，并在在虫入侵健康寄主华山检针携带真菌孢子接种于华山松木质部。华山松大小蠹消化道内不具有含菌细胞和特化的带菌结构，消化道内存在的真菌也没有菌丝发育形成的附着孢或吸盘结构，使真菌不能被有效地贮存或携带

THE MYCANGIUM POSITION AND STRUCTURE OF THE BARK BEETLE DENDROCTONUS ARMANDI

The carrying microorganism position and the structure of mycangium of \?ndroctonus armandi\% Tsai et Li, the most destructive bark beetle in Qinling and Bashan Mountains were studied. The results showed that the mycangia of the adult \%D. armandi\% consisted of the pronotal intergumentary cavities and spines, the spores of \%Leptographium terebrantis\% and \%Ophiostoma minus\% were the main spores carried by the mycangia of \%D. armandi\%, and they were inoculated into xylem of the host trees, while the beetle infested healthy host tree. Because there were no specialized mycetocytes and carried fungi structure in endobody of \%D. armandi\%, any hyphae specialized appressorium or sucher structure in the fungi, the fungi were attached to the alimentary canal of \%D. armandi\%, and the alimentary canal of \%D. armandi\% was not the stocked and transported fungi spores areas. \%D. armandi\% was not depended on the alimentary canal to carry and transport the fungi.