59 Result(s)
within
Stefan Schulz
Life Sciences
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Article
Open AccessComplexity of Chemical Emissions Increases Concurrently with Sexual Maturity in Heliconius Butterflies
Pheromone communication is widespread among animals. Since it is often involved in mate choice, pheromone production is often tightly controlled. Although male sex pheromones (MSPs) and anti-aphrodisiacs have ...
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Article
Open AccessThe uropygial gland of the Great Cormorant (Phalacrocorax carbo): II. Biochemical analysis of the uropygial secretion
In contrast to many other water birds, the Great Cormorant, Phalacrocorax carbo (Phalacrocoracidae), shows a typical wing-spreading behavior after diving. This behavior has been linked to the partial wettability ...
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Open AccessIn situ visualization of opioid and cannabinoid drug effects using phosphosite-specific GPCR antibodies
G protein-coupled receptors (GPCRs) are important signal transducers that are phosphorylated upon activation at intracellular serine and threonine residues. Although antibodies that specifically recognize the ...
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Article
Open AccessA bead-based GPCR phosphorylation immunoassay for high-throughput ligand profiling and GRK inhibitor screening
Analysis of agonist-driven phosphorylation of G protein-coupled receptors (GPCRs) can provide valuable insights into the receptor activation state and ligand pharmacology. However, to date, assessment of GPCR ...
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Article
MACE – An Open Access Data Repository of Mass Spectra for Chemical Ecology
MACE is an open access collection of electron impact (EI) mass spectra for coupled gas chromatography-mass spectrometry (GC/MS) that serves as an add-on database, comprising curated spectra not present in wide...
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Article
Tribute to Professor Kenji Mori and his contribution to Chemical Ecology
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Article
Open AccessCinnamomeoventrolide – Double Bond Regioisomerism in Frog Semiochemicals
Frogs of the families Mantellinae and Hyperoliidae possess male specific femoral or gular glands that are used during courtship. These glands release volatile compounds, e. g. the macrocyclic lactone gephyroma...
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Special Issues in Honor of Professor Dr. Dr. hc mult. Wittko Francke, 28 November 1940–27 December 2020
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Article
Open AccessIdentification of Cuticular and Web Lipids of the Spider Argiope bruennichi
Emerging evidence shows that the cuticular and silk lipids of spiders are structurally more diverse than those of insects, although only a relatively low number of species have been investigated so far. As in ...
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Special Issues in Honor of Professor Dr. Dr. hc mult. Wittko Francke, 28 November 1940 - 27 December 2020
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Open AccessHA-MOP knockin mice express the canonical µ-opioid receptor but lack detectable splice variants
G protein-coupled receptors (GPCRs) are notoriously difficult to detect in native tissues. In an effort to resolve this problem, we have developed a novel mouse model by fusing the hemagglutinin (HA)-epitope t...
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Article
Open AccessPheromone communication among sexes of the garden cross spider Araneus diadematus
Chemical communication plays a fundamental role in many aspects of an animal’s life from assessing habitat quality to finding mating partners. Behavioural observations show that chemical communication likewise...
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Article
Microbial volatile organic compounds in intra-kingdom and inter-kingdom interactions
Microorganisms produce and excrete a versatile array of metabolites with different physico-chemical properties and biological activities. However, the ability of microorganisms to release volatile compounds ha...
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Article
Open AccessChemical Variation among Castes, Female Life Stages and Populations of the Facultative Eusocial Sweat Bee Halictus rubicundus (Hymenoptera: Halictidae)
In eusocial insects, chemical communication is crucial for mediating many aspects of social activities, especially the regulation of reproduction. Though queen signals are known to decrease ovarian activation ...
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Article
Chemical Species Recognition in a Tetragnatha Spider (Araneae: Tetragnathidae)
Much of our knowledge regarding the role of chemicals in species recognition in arthropods is based on a few taxonomic groups, predominantly insect pest species. To investigate the chemical underpinnings of sp...
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Structural Diversity of Bacterial Volatiles
Bacterial volatile organic compounds (VOCs) represent a structurally very broad mixture of compounds, likely not less diverse than plant or animal volatiles. Within this diversity individual compounds might be...
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Article
Open AccessFlowers of European pear release common and uncommon volatiles that can be detected by honey bee pollinators
Floral scents are important pollinator attractants, but there is limited knowledge about the importance of single components in plant–pollinator interactions. This especially is true in crop pollination system...
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Article
Chemistry of the Androconial Secretion of the Ithomiine Butterfly Oleria onega
Ithomiine butterflies use pyrrolizidine alkaloids (PAs) as precursors for male pheromones, such as dihydropyrrolizines or lactones. In contrast to most other ithomiine genera, none of these compounds have ever...
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Article
Open AccessFlower scent of Ceropegia stenantha: electrophysiological activity and synthesis of novel components
In specialized pollination systems, floral scents are crucial for flower–pollinator communication, but key volatiles that attract pollinators are unknown for most systems. Deceptive Ceropegia trap flowers are fam...
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Article
Correction to: Novel floral scent compounds from night-blooming Araceae pollinated by cyclocephaline scarabs (Melolonthidae, Cyclocephalini)
The original version of this article unfortunately contained a mistake. The description of subheadings of Figs. 4c and d have to be interchanged.
