Results 201 to 210 of about 136,526 (254)
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2016
Ontogeny and differentiation of cells of the monocyte/macrophage lineage are currently subjects of intense research. The concept of the macrophage as “simple” phagocytic cell has undergone profound changes. It has now been established that this myeloid lineage of cells is phenotypically and functionally much more diverse and exerts a much wider ...
Christian Bogdan +2 more
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Ontogeny and differentiation of cells of the monocyte/macrophage lineage are currently subjects of intense research. The concept of the macrophage as “simple” phagocytic cell has undergone profound changes. It has now been established that this myeloid lineage of cells is phenotypically and functionally much more diverse and exerts a much wider ...
Christian Bogdan +2 more
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2014
The immune system represents a complicated assemblage of coordinated genes, proteins, cells and tissues. The field of ecological immunology (EI) is founded on the assumption that immunological defenses incur costs (energetic or fitness) under different ecological conditions.
Dana M. Hawley, Jeb P. Owen
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The immune system represents a complicated assemblage of coordinated genes, proteins, cells and tissues. The field of ecological immunology (EI) is founded on the assumption that immunological defenses incur costs (energetic or fitness) under different ecological conditions.
Dana M. Hawley, Jeb P. Owen
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Local adaptation and host–parasite interactions
Trends in Ecology & Evolution, 1998The reciprocal transplant experiment is a test to detect the existence of adaptive genetic structure. It compares the performance of parasites (e.g. infectivity, within-host growth rate and survival) on native and novel environments (which can be different host individuals, populations, or species). Controls are required for the conditioning effects of
Sylvain Gandon, Peter A. Van Zandt
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Signals in Host-Parasite Interactions
1997Plants are resistant to most potential pathogens in their environment; in fact, relatively few true host-pathogen pairs exist in which the plant is susceptible and the pathogen virulent. Within a susceptible plant species, specific cultivars carry genes which give them resistance to specific pathogen races harboring the corresponding avirulence genes ...
Dierk Scheel, Jürgen Ebel
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Host/Parasite Interactions in Bacterial Endophthalmitis
Zentralblatt für Bakteriologie, 1997Bacterial infections within the eye arise as complications of intraocular surgery, penetrating injury, or hematogenous spread from distant anatomical sites. Because: 1) the interior surfaces of the eye are lined with sensitive, nonregenerating tissues, 2) the inner chambers of the eye are relatively sequestered from circulating immunological components,
Michael S. Gilmore +3 more
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HOST-PARASITE INTERACTIONS DURING PREGNANCY
Obstetrical & Gynecological Survey, 1978The point that host defense against infectious disease is exceedingly complex scarcely needs further emphasis. We have tried to show that pregnancy is a state which has the potential for altering any of the many facets of host defense, and in some instances presented evidence that pregnancy does alter resistance to infection.
Bryan Larsen, Rudolph P. Galask
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Stochastic host-parasite interaction models
Journal of Mathematical Biology, 2000We contribute to the discussion of causes and effects of aggregation (overdispersion) of macroparasite counts, focussing particularly upon the effects of clumped infections and parasite-induced host mortality. The simple nonlinear stochastic model for the evolution of the parasite load of a single host, investigated in Isham (1995), is extended to ...
Valerie Isham, Julian Herbert
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1979
All organisms have evolved defence mechanisms for protection against invasion and establishment by micro-organisms and by metazoan parasites. Although ideally we should include the viruses and bacteria in our current discussion, space precludes such a full consideration.
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All organisms have evolved defence mechanisms for protection against invasion and establishment by micro-organisms and by metazoan parasites. Although ideally we should include the viruses and bacteria in our current discussion, space precludes such a full consideration.
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1986
Host-parasite interactions have been studied by means of formal genetic procedures since the beginning of this century. It soon proved that resistance of a plant is inherited in a rather simple manner. Parasites, however, have been studied to a much lesser extent than the host plants, largely because of the difficulties in cultivating parasitic ...
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Host-parasite interactions have been studied by means of formal genetic procedures since the beginning of this century. It soon proved that resistance of a plant is inherited in a rather simple manner. Parasites, however, have been studied to a much lesser extent than the host plants, largely because of the difficulties in cultivating parasitic ...
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The Evolution of Host-Parasite Interaction
1983The extent of economic damage to crop plants due to pests and diseases is very large and well documented. Minimizing this loss through the use of pesticides is expensive. The high cost of pesticides and the threat they pose to non-target organisms make breeding for disease resistance a cost-effective and attractive alternative.
P. R. Day, M. S. Wolfe, J. A. Barrett
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