Search Results - (Author, Cooperation:J. R. Sauer)
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1Latest Papers from Table of Contents or Articles in PressP. A. Stephens ; L. R. Mason ; R. E. Green ; R. D. Gregory ; J. R. Sauer ; J. Alison ; A. Aunins ; L. Brotons ; S. H. Butchart ; T. Campedelli ; T. Chodkiewicz ; P. Chylarecki ; O. Crowe ; J. Elts ; V. Escandell ; R. P. Foppen ; H. Heldbjerg ; S. Herrando ; M. Husby ; F. Jiguet ; A. Lehikoinen ; A. Lindstrom ; D. G. Noble ; J. Y. Paquet ; J. Reif ; T. Sattler ; T. Szep ; N. Teufelbauer ; S. Trautmann ; A. J. van Strien ; C. A. van Turnhout ; P. Vorisek ; S. G. Willis
American Association for the Advancement of Science (AAAS)
Published 2016Staff ViewPublication Date: 2016-04-02Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animal Migration ; Animals ; Biodiversity ; *Birds ; Breeding ; *Climate Change ; Ecological Parameter Monitoring ; Europe ; Population Dynamics ; United StatesPublished by: -
2Articles: DFG German National LicensesStaff View
ISSN: 1420-9071Source: Springer Online Journal Archives 1860-2000Topics: BiologyMedicineNotes: Summary Phosphodiesterase (PDE) activity in the salivary glands of the female.Amblyomma americanum decreased as the tick progressed from a slow to a rapid phase of feeding, while the rate of fluid secretion increased, when glands were stimulated with cyclic AMP and theophylline Dopamine stimulated PDE activity and an ‘inhibitory’ factor was found in glands obtained from rapidly engorging ticks which decreased PDE activity. These findings are discussed as they relate to the process of fluid secretion by salivary glands of feeding ixodid ticks.Type of Medium: Electronic ResourceURL: -
3Articles: DFG German National LicensesSauer, J. R. ; McSwain, J. L. ; Tucker, J. S. ; Shelby, K. S. ; Williams, J. P. ; Essenberg, R. C.
Springer
Published 1989Staff ViewISSN: 1572-9702Source: Springer Online Journal Archives 1860-2000Topics: BiologyNotes: Abstract Tick salivary glands are controlled by nerves, dopamine being a neurotransmitter at the neuroeffector junction. Dopamine and cyclic AMP (cAMP) stimulate fluid secretion by isolated salivary glands. Dopamine activates an adenylate cyclase to increase intracellular cAMP within the female salivary glands. Phosphoproteins whose levels of phosphate are affected by cAMP-dependent protein kinase have been identified in subcellular fractions. Protein(s) phosphorylated by cAMP appears to activate protein phosphatase in the salivary glands. Another phosphorylation pathway appears to act through protein kinase C because of an ability of phorbol esters (known activators of protein kinase C) to stimulate the phosphorylation of proteins, and an ability of a peptide factor in tick brain to metabolize salivary-gland phosphoinositides, an event that often precedes activation of protein kinase C. Because cAMP modulates brain-factor-stimulated formation of inositol phosphates (products of phosphoinositide breakdown) an interrelationship between the two pathways seems likely. Evidence of regulatory processes, including protein phosphorylation'dephosphorylation reactions, will provide a basis for helping asses the physiological significance of secretory products and the role of the salivary glands in disease transmission.Type of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesStaff View
ISSN: 1573-8248Source: Springer Online Journal Archives 1860-2000Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionDescription / Table of Contents: Résumé L'alimentation aux dépens de l'hôte a été démontrée chezAphelinus asychis (Walker) en incorporant à l'aliment artificiel de l'hôte,Schizaphis graminum (Rondani) des molécules marquées (14C-carboxyl inuline et14C-glucose).Notes: Abstract Host feeding was demonstrated forAphelinus asychis (Walker) by incorporating “tagged” molecules (14C-carboxyl inulin and14C-glucose) into the artificial diet of the host,Schizaphis graminum (Rondani).Type of Medium: Electronic ResourceURL: