Search Results - "Scharsack, Jörn P."

Heat and immunity: an experimental heat wave alters immune functions in three‐spined sticklebacks (Gasterosteus aculeatus) by Dittmar, Janine, Janssen, Hannah, Kuske, Andra, Kurtz, Joachim, Scharsack, Jörn P, Ardia, Daniel

“…Global climate change is predicted to lead to increased temperatures and more extreme climatic events. This may influence host–parasite interactions, immunity…”
Get full text

Disentangling specific and unspecific components of innate immune memory in a copepod-tapeworm system by Ng, Tze Hann, Harrison, Mark C, Scharsack, Jörn P, Kurtz, Joachim

“…Evidence that the innate immune system can respond with forms of memory upon reinfection has been accumulating over the past few years. These phenomena of…”
Get full text

A new technique to study nutrient flow in host-parasite systems by carbon stable isotope analysis of amino acids and glucose by Hesse, Tobias, Nachev, Milen, Khaliq, Shaista, Jochmann, Maik A., Franke, Frederik, Scharsack, Jörn P., Kurtz, Joachim, Sures, Bernd, Schmidt, Torsten C.

“…Stable isotope analysis of individual compounds is emerging as a powerful tool to study nutrient origin and conversion in host-parasite systems. We measured…”
Get full text

Insights into amino acid fractionation and incorporation by compound-specific carbon isotope analysis of three-spined sticklebacks by Hesse, Tobias, Nachev, Milen, Khaliq, Shaista, Jochmann, Maik A., Franke, Frederik, Scharsack, Jörn P., Kurtz, Joachim, Sures, Bernd, Schmidt, Torsten C.

“…Interpretation of stable isotope data is of upmost importance in ecology to build sound models for the study of animal diets, migration patterns and…”
Get full text

Reciprocal cross infection of sticklebacks with the diphyllobothriidean cestode Schistocephalus solidus reveals consistent population differences in parasite growth and host resistance by Kalbe, Martin, Eizaguirre, Christophe, Scharsack, Jörn P, Jakobsen, Per J

“…In host-parasite evolutionary arms races, parasites are generally expected to adapt more rapidly, due to their large population sizes and short generation…”
Get full text

Infection of Tribolium castaneum with Bacillus thuringiensis: quantification of bacterial replication within cadavers, transmission via cannibalism, and inhibition of spore germination by Milutinović, Barbara, Höfling, Christina, Futo, Momir, Scharsack, Jörn P, Kurtz, Joachim

“…Reproduction within a host and transmission to the next host are crucial for the virulence and fitness of pathogens. Nevertheless, basic knowledge about such…”
Get full text

Habitat-specific adaptation of immune responses of stickleback (Gasterosteus aculeatus) lake and river ecotypes by Scharsack, Jörn P, Kalbe, Martin, Harrod, Chris, Rauch, Gisep

“…Freshwater populations of three-spined sticklebacks (…”
Get full text

Relative benefit of the invasive Echinogammarus berilloni (Catta, 1878) over native gammarids under fish predation (Gasterosteus aculeatus Linnaeus, 1758) by Schmidt-Drewello, Alexander, Riss, H. Wolfgang, Scharsack, Jörn P., Meyer, Elisabeth I.

“…Running waters of Central Europe are progressively invaded by the southwest European amphipod Echinogammarus berilloni —as currently observed in the karstic…”
Get full text

In vitro leukocyte response of three-spined sticklebacks (Gasterosteus aculeatus) to helminth parasite antigens by Franke, Frederik, Rahn, Anna K., Dittmar, Janine, Erin, Noémie, Rieger, Jennifer K., Haase, David, Samonte-Padilla, Irene E., Lange, Joseph, Jakobsen, Per J., Hermida, Miguel, Fernández, Carlos, Kurtz, Joachim, Bakker, Theo C.M., Reusch, Thorsten B.H., Kalbe, Martin, Scharsack, Jörn P.

“…Helminth parasites of teleost fish have evolved strategies to evade and manipulate the immune responses of their hosts. Responsiveness of fish host immunity to…”
Get full text

In vitro effects of prostaglandin E2 on leucocytes from sticklebacks (Gasterosteus aculeatus) infected and not infected with the cestode Schistocephalus solidus by Kutyrev, Ivan A., Franke, Frederik, Büscher, Janine, Kurtz, Joachim, Scharsack, Jörn P.

“…Many helminth parasites have evolved strategies to evade the immune response of their hosts, which includes immunomodulation. Prostaglandin E2 (PGE2) is one of…”
Get full text

Down syndrome cell adhesion molecule 1: testing for a role in insect immunity, behaviour and reproduction by Peuß, Robert, Wensing, Kristina U., Woestmann, Luisa, Eggert, Hendrik, Milutinović, Barbara, Sroka, Marlene G. U., Scharsack, Jörn P., Kurtz, Joachim, Armitage, Sophie A. O.

“…Down syndrome cell adhesion molecule 1 (Dscam1) has wide-reaching and vital neuronal functions although the role it plays in insect and crustacean immunity is…”
Get full text

Less impact than suspected: Dietary exposure of three-spined sticklebacks to microplastic fibers does not affect their body condition and immune parameters by Bunge, Anja, Lugert, Vincent, McClure, Melissa, Kammann, Ulrike, Hanel, Reinhold, Scharsack, Jörn P.

“…Microplastic fibers are frequent anthropogenic contaminants in most aquatic environments and have consequently been detected in the digestive tract of many…”
Get full text

Consequences of divergent temperature optima in a host–parasite system by Franke, Frederik, Raifarth, Nadja, Kurtz, Joachim, Scharsack, Jörn P.

“…It was suggested that parasite infections become more severe with rising temperature, as expected during global warming. In ectothermic systems, the growth of…”
Get full text

Induction of diploid gynogenesis in an evolutionary model organism, the three-spined stickleback (Gasterosteus aculeatus) by Samonte-Padilla, Irene E, Eizaguirre, Christophe, Scharsack, Jörn P, Lenz, Tobias L, Milinski, Manfred

“…Rapid advances in genomics have provided nearly complete genome sequences for many different species. However, no matter how the sequencing technology has…”
Get full text

Parasite infection disrupts escape behaviours in fish shoals by Demandt, Nicolle, Praetz, Marit, Kurvers, Ralf H J M, Krause, Jens, Kurtz, Joachim, Scharsack, Jörn P

“…Many prey species have evolved collective responses to avoid predation. They rapidly transfer information about potential predators to trigger and coordinate…”
Get full text

In vitro effects of the neuroactive substances serotonin and γ-aminobutyric acid on leucocytes from sticklebacks (Gasterosteus aculeatus) by Kutyrev, Ivan A., Franke, Frederik, Kurtz, Joachim, Scharsack, Jörn P.

“…The majority of parasites have evolved strategies to evade the immune responses of their hosts. Neuroactive substances produced by cestodes are possible…”
Get full text

Parasite infection impairs the shoaling behaviour of uninfected shoal members under predator attack by Demandt, Nicolle, Bierbach, David, Kurvers, Ralf H. J. M., Krause, Jens, Kurtz, Joachim, Scharsack, Jörn P.

“…A key benefit of sociality is a reduction in predation risk. Cohesive group behaviour and rapid collective decision making are essential for reducing predation…”
Get full text

Specific manipulation or systemic impairment? Behavioural changes of three-spined sticklebacks (Gasterosteus aculeatus) infected with the tapeworm Schistocephalus solidus by Talarico, Manuel, Seifert, Franziska, Lange, Josef, Sachser, Norbert, Kurtz, Joachim, Scharsack, Jörn P.

“…Manipulation of host behaviour by parasites to enhance transmission to the next host is a fascinating yet controversial phenomenon. This is because it is often…”
Get full text

Climate change facilitates a parasite’s host exploitation via temperature‐mediated immunometabolic processes by Scharsack, Jörn P., Wieczorek, Bartholomäus, Schmidt‐Drewello, Alexander, Büscher, Janine, Franke, Frederik, Moore, Andrew, Branca, Antoine, Witten, Anika, Stoll, Monika, Bornberg‐Bauer, Erich, Wicke, Susann, Kurtz, Joachim

“…Global climate change can influence organismic interactions like those between hosts and parasites. Rising temperatures may exacerbate the exploitation of…”
Get full text

Environmental temperature variation influences fitness trade-offs and tolerance in a fish-tapeworm association by Franke, Frederik, Armitage, Sophie A O, Kutzer, Megan A M, Kurtz, Joachim, Scharsack, Jörn P

“…Increasing temperatures are predicted to strongly impact host-parasite interactions, but empirical tests are rare. Host species that are naturally exposed to a…”
Get full text