Search Results - "Klaus H. HOFFMANN"

Special Issue: Molecular Ecology, Physiology and Biochemistry of Insects 3.0 by Hoffmann, Klaus H

“…With the outstanding work of Sir Vincent B [...]…”
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Editorial: The Role of Peptide Hormones in Insect Physiology, Biochemistry, and Molecular Biology Processes, Volume II by Hoffmann, Klaus H, Borovsky, Dov, Kim, Yonggyun

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Editorial: The Role of Peptide Hormones in Insect Physiology, Biochemistry, and Molecular Biology Processes by Borovsky, Dov, Kim, Yonggyun, Hoffmann, Klaus H

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Editorial: The Evolution of Neuropeptides - a Stroll Through the Animal Kingdom: Updates From the Ottawa 2019 ICCPB Symposium and Beyond by Hoffmann, Klaus H, Williams, Elizabeth A

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Control of the release of digestive enzymes in the larvae of the fall armyworm, Spodoptera frugiperda by Lwalaba, Digali, Hoffmann, Klaus H., Woodring, Joseph

“…There is a basal level of enzyme activity for trypsin, aminopeptidase, amylase, and lipase in the gut of unfed larval (L6) Spodoptera frugiperda. Trypsin…”
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Editorial: Chitin structures and pathways as targets for biopesticides and drugs by Hoffmann, Klaus H.

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Ecdysteroid levels in Daphnia magna during a molt cycle: Determination by radioimmunoassay (RIA) and liquid chromatography–mass spectrometry (LC–MS) by Martin-Creuzburg, Dominik, Westerlund, Stephanie A, Hoffmann, Klaus H

“…Abstract Despite their abundance and their enormous significance for various ecological processes, endocrine systems of microcrustaceans have been poorly…”
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Essential oils by Hoffmann, Klaus H.

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Adult nutrition and butterfly fitness: effects of diet quality on reproductive output, egg composition, and egg hatching success by Geister, Thorin L, Lorenz, Matthias W, Hoffmann, Klaus H, Fischer, Klaus

“…In the Lepidoptera it was historically believed that adult butterflies rely primarily on larval-derived nutrients for reproduction and somatic maintenance…”
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Neuropeptide regulators of the juvenile hormone biosynthesis (in vitro) in the beetle, Tenebrio molitor (Coleoptera, Tenebrionidae) by Abdel-latief, Mohatmed, Hoffmann, Klaus H.

“…The genome of Tribolium castaneum encodes two allatostatin [AS type B; W(X)6Wamide and AS type C; PISCF‐OH] and one allatotropin (AT) precursor, but no AS type…”
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Effects of temperature on reproductive output, egg provisioning, juvenile hormone and vitellogenin titres in the butterfly Bicyclus anynana by Geister, Thorin L., Lorenz, Matthias W., Meyering-Vos, Martina, Hoffmann, Klaus. H., Fischer, Klaus

“…Environmentally induced phenotypic plasticity is common in nature. Hormones, affecting multiple traits and signaling to a variety of distant target tissues,…”
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Ant-aphid mutualisms: the impact of honeydew production and honeydew sugar composition on ant preferences by Volkl, W, Woodring, J, Fischer, M, Lorenz, M.W, Hoffmann, K.H

“…The honeydew composition and production of four aphid species feeding on Tanacetum vulgare, and mutualistic relationships with the ant Lasius niger were…”
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Nutritional Constraints at the Cyanobacteria-"Daphnia magna" interface: The Role of Sterols by Martin-Creuzburg, Dominik, von Elert, Eric, Hoffmann, Klaus H.

“…In past decades, a considerable amount of research has been conducted to elucidate the factors that affect the carbon transfer across the…”
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Honeydew production and honeydew sugar composition of polyphagous black bean aphid, Aphis fabae (Hemiptera: Aphididae) on various host plants and implications for ant-attendance by Melanie K. FISCHER, Wolfgang VÖLKL, Klaus H. HOFFMANN

“…The black bean aphid, Aphis fabae, is polyphagous and its life cycle involves seasonal migration between summer and winter host plants. The aphids are…”
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Insect biotechnology – a major challenge in the 21st century by Hoffmann, Klaus H.

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Competition for mutualists in an ant-homopteran interaction mediated by hierarchies of ant attendance by Fischer, Melanie K., Hoffmann, Klaus H., Völkl, Wolfgang

“…Workers of the ant species Lasius niger showed marked preferences when collecting honeydew from three aphid species living on tansy, Tanacetum vulgare…”
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Functional analysis of the allatostatin-A type gene in the cricket Gryllus bimaculatus and the armyworm Spodoptera frugiperda by Meyering-Vos, Martina, Merz, Sandra, Sertkol, Mehriye, Hoffmann, Klaus H.

“…Double-stranded RNA (dsRNA) gene interference is an efficient method to silence gene expression in a sequence specific manner. Here we show, that dsRNA…”
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Functional activity of allatotropin and allatostatin in the pupal stage of a holometablous insect, Tribolium castaneum (Coleoptera, Tenebrionidae) by Abdel-latief, Mohatmed, Hoffmann, Klaus H.

“…•We cloned the cDNAs of allatostatic (AS) and allatotropic (AT) peptide precursors in a beetle, Tribolium castaneum.•The Tc-AT gene is expressed in three mRNA…”
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SECRETION OF LIPASES IN THE DIGESTIVE TRACT OF THE CRICKET Gryllus bimaculatus by Weidlich, Sandy, Hoffmann, Klaus H, Woodring, Joseph

“…Little is known concerning the sites and the ratios of the lipase secretions in insects, therefore we undertook an examination of the lipase secretion of fed…”
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Age-specific patterns in honeydew production and honeydew composition in the aphid Metopeurum fuscoviride: implications for ant-attendance by Fischer, Melanie K., Völkl, Wolfgang, Schopf, Reinhard, Hoffmann, Klaus H.

“…The intensity of the mutualistic relationship between aphids and ants depends mainly on the composition and amount of honeydew. We used the model system…”
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