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antibiotic-producing bacteria from stag beetle mycangia.the search for new antibiotics or antifungal agents is crucial for the chemotherapies of infectious diseases. the limited resource of soil bacteria makes it difficult to discover such new drug candidate. we, therefore, focused on another bacterial resource than soil bacteria, the microbial flora of insect species. in the present study, we isolated 40 strains of bacteria and fungi from the mycangia of three species of stag beetle, dorcus hopei binodulosus, dorcus rectus, and dorcus titanus pilife ...201525639488
are stag beetles fungivorous?stag beetle larvae generally feed on decaying wood; however, it was unknown whether they can use wood-rotting fungi alone as food. here, to clarify this, newly hatched larvae of dorcus rectus (motschulsky) (coleoptera: lucanidae) were reared for 14 days on artificial diets containing a fixed amount of freeze-dried mycelia of the following fungi: bjerkandera adusta, trametes versicolor, pleurotus ostreatus, and fomitopsis pinicola. the mean incremental gain in larval body mass was greatest on die ...200919607834
regional collapse of symbiotic specificity between lucanid beetles and canestriniid mites.the intensity of interspecific interactions between hosts and symbionts varies among populations of each organism because of differences in the biotic and abiotic environment. we found geographic mosaics in associations between lucanid beetles (dorcus rectus and dorcus striatipennis) and symbiotic mites (haitlingeria sp. and sandrophela sp., respectively) that were caused by the collapse of host specificity in the northern part of japan. haitlingeria sp. was only collected from the surface of th ...201223086393
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