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The goal of this review is not to present the whole array of examples in detail but to describe, analyze, and explain some strategies used by organisms to gain access to food, mates, or other important resources. Expand
Chemosystematics and evolution of beetle chemical defenses
Though mechanically well protected by an exoskeleton, Coleoptera, which comprise the largest group of organisms at the order level, have evolved a variety of defense mechanisms, and a wealth of information has emerged. Expand
Inter- and Intraspecific Transfer of Toxic Insect Compound Cantharidin
Many arthropods are known to take up and to sequester toxic secondary compounds without being damaged, and these compounds drug-like may also increase survivorship of the pharmacophagous organism. Expand
Chemical Signalling in Beetles
This chapter reviews chemical structures of biologically active, volatile compounds in beetles. Techniques used for structure elucidation are briefly discussed as well as facts and speculations onExpand
Ecological and Phylogenetic Significance of Defensive Compounds from Pygidial Glands of Hydradephaga (Coleoptera)
It has been shown that comparative chemical analysis of gland constituents may be valuable in constructing phylogenetic trees, if other characters are not disregarded. Expand
Gut Bacteria May Be Involved in Interactions between Plants, Herbivores and Their Predators: Microbial Biosynthesis of N-Acylglutamine Surfactants as Elicitors of Plant Volatiles
The involvement of bacteria in the biosynthesis of compounds which play a pivotal role in the interaction of plants, herbivores and their predators adds a new trophic level to this complex network of interactions. Expand
Characterization of an Obligate Intracellular Bacterium in the Midgut Epithelium of the Bulrush Bug Chilacis typhae (Heteroptera, Lygaeidae, Artheneinae)
This study describes the second molecular characterization of a symbiotic bacterium in a monophagous, seed-sucking stink bug of the family Lygaeidae and reveals a phylogenetic relationship with a secondary bacterial endosymbiont of Cimex lectularius and free-living plant pathogens such as Pectobacterium and Dickeya. Expand
Defensive secretions and exocrine glands in free-living staphylinid bettles—their bearing on phylogeny (Coleoptera: Staphylinidae)
The chemical defensive systems of staphylinid beetles are surveyed and the biological significance and multifunctional role of these exocrines are considered and the necessity of biogenetic data is stressed. Expand
Mandibular gland secretions in alloxystine wasps (Hymenoptera, Cynipoidea, Charipidae): do ecological or phylogenetical constraints influence occurrence or composition?
The results support the idea of the prevalence of historical (phylogenetic) rather than actual ecological constraints in alloxystine wasps, and potential relationships of selected species and a hypothetical phylogenetic frame tree are proposed. Expand
Screening for biologically active metabolites with endosymbiotic bacilli isolated from arthropods.
Endosymbiotic bacteria from the genus Bacillus were isolated from different compartments of the gut of various members of insects and millipedes regarding their production of bioactive metabolites, which were isolated and determined in structure. Expand