Results 251 to 260 of about 815,641 (309)

Host Specificity in Subarctic Aphids

Environmental Entomology, 2017
Plants and herbivorous (or parasitic) insects form the majority of macroscopic life. The specificity of interaction between host plant and parasitic insect depends on the adaptations of both the host and the parasite. Over time, these interactions evolve and change as a result of an 'arms race' between host and parasite, and the resulting species ...
Daniel J Gibson, Sarah J Adamowicz, Shoshanah R Jacobs, M Alex Smith   +3 more
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Host specificity of avian metapneumoviruses

Avian Pathology, 2019
To date, four subgroups of avian metapneumoviruses have been defined (AMPV-A, B, C and D) based on genetic and antigenic differences. The extent of infection in the three principal species (turkeys, chickens and ducks) by these subgroups is, however, not well defined.
Paul A, Brown, Chantal, Allée, Céline, Courtillon, Nathan, Szerman, Evelyne, Lemaitre, Didier, Toquin, Jean-Michel, Mangart, Michel, Amelot, Nicolas, Eterradossi   +8 more
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Insights in Bartonella Host Specificity

Annals of the New York Academy of Sciences, 2009
The genus Bartonella comprises a unique group of emerging gram‐negative, intracellular bacteria that can cause a long‐lasting intraerythrocytic bacteremia in their reservoir hosts. In recent years, the widespread occurrence and diversity of these bacteria has been increasingly recognized.
Vayssier Taussat, Muriel, Le Rhun, Danielle, Bonnet, Sarah, Cotté, Violaine   +3 more
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Physiological Host Specificity of Microsporidia as an Indicator of Ecological Host Specificity

Journal of Invertebrate Pathology, 1998
For most groups of biological control agents the relationship between laboratory (physiological) host range and the host range in the field (ecological host range) has not been explored empirically. The objective of our study was to investigate this relationship using the North America gypsy moth, Lymantria dispar, as a model nontarget host for ...
L F, Solter, J V, Maddox
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Trypanosoma danilewskyi: Host Specificity and Host's Effect on Morphometrics

The Journal of Parasitology, 1984
Carassius auratus, Barbus conhus, Danio malabaricus, Catostomus commersoni, Notropis cornutus, Etheostoma caeruleum, and Ictalurus nebulosus were susceptible to Trypanosoma danilewskyi by intraperitoneal inoculation. Trypanosomes isolated from all species of susceptible fishes were infective to goldfish.
P T, Woo, G A, Black
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Host–Pathogen Specificity in Tuberculosis

2013
The host response to mycobacterial infection including tuberculosis depends on genetically controlled host and bacterial factors and their interaction. A largely unknown aspect of this interaction is whether disease results from an additive and independent effect of host and pathogen or from specific host-pathogen combinations.
Tania, Di Pietrantonio, Erwin, Schurr
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Host specificity of avian coccidia

Parasitology Today, 1986
The term 'species specific' in reference to the host specificity of avian coccidia, has been used rather loosely for many years. A strong belief in strict species specificity has led to many new species of coccidia being described from oocysts isolated from the faeces of wild birds, primarily on the grounds that no coccidium had previously been ...
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Host-specificity, host-exclusivity, and host-recurrence in saprobic fungi

Mycological Research, 2001
Estimates of global fungal numbers rely heavily on the ratios of unique fungi to host plants. Evidence for host-specificity, which is basic to our understanding of host to fungus ratios, is therefore explored in this review. There is considerable evidence that some endophytes, pathogens and mycorrhizal fungi are host-specific. Host-specificity however,
Dequn Zhou, Kevin D. Hyde
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Experimental host specificity of Posthodiplostomum minimum

Experimental Parasitology, 1965
Abstract Parasite-free snails of the genus Physa were experimentally infected with the miracidia of Posthodiplostomum minimum, the metacercariae of which were originally obtained from bluegills, Lepomis macrochirus. Twelve species of fish representing 5 families (Cyprinidae, Cichlidae, Centrarchidae, Poeciliidae and Ictaluridae) were exposed to ...
J W, Avault, R O, Smitherman
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Specific-purpose broad-host-range vectors

Plasmid, 1985
Several plasmid derivatives of broad-host-range Inc P4 plasmid RSF1010 were constructed and characterized. Vector pAYC30 was constructed by insertion in vivo into the genome of RSF1010 the Hgr transposon Tn501, originating from the plasmid pVS1 of Pseudomonas aeruginosa. Plasmids with inserts of PstI or SacI fragments may be selected by inactivation of
Y D, Tsygankov, A Y, Chistoserdov
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