Results 31 to 40 of about 436,865 (310)

Resolving the infection process reveals striking differences in the contribution of environment, genetics and phylogeny to host-parasite interactions [PDF]

open access: yes, 2011
Background Infection processes consist of a sequence of steps, each critical for the interaction between host and parasite. Studies of host-parasite interactions rarely take into account the fact that different steps might be influenced by different ...
Ebert, Dieter   +18 more
core   +1 more source

The Dual Function in Virulence and Host Range Restriction of a Gene Isolated from the pPATHEhg Plasmid of Erwinia herbicola pv. gypsophilae

open access: yesMolecular Plant-Microbe Interactions, 2000
The host range of the gall-forming bacterium Erwinia herbicola pv. gypsophilae (Ehg) is restricted to gypsophila whereas Erwinia herbicola pv. betae (Ehb) attacks beet as well as gypsophila.
David Ezra   +3 more
doaj   +1 more source

Female-induced increase of host-plant volatiles enhance specific attraction of aphid male Dysaphis plantaginea (Homoptera: Aphididae) to the sex pheromone [PDF]

open access: yes, 2009
All aphid species studied so far share the same sex pheromone components, nepetalactol and nepetalactone. Variation by different enantiomers and blends of the two components released by different aphid species are limited and can only partially explain ...
Tol, R.W.H.M., van   +3 more
core   +1 more source

Rhizobium sp. BR816 Produces a Complex Mixture of Known and Novel Lipochitooligosaccharide Molecules

open access: yesMolecular Plant-Microbe Interactions, 2001
Rhizobial lipochitooligosaccharide (LCO) signal molecules induce various plant responses, leading to nodule development. We report here the LCO structures of the broad-host range strain Rhizobium sp. BR816.
Carla Snoeck   +5 more
doaj   +1 more source

Promiscuous specialists: Host specificity patterns among generalist louse flies.

open access: yesPLoS ONE, 2021
Ectoparasites such as louse flies (Diptera: Hippoboscidae) have tendency for host specialization, which is driven by adaptation to host biology as well as competition avoidance between parasites of the same host.
Aleksi Lehikoinen   +4 more
doaj   +1 more source

Morphological and molecular studies of the nematode parasite Heterakis gallinarum (Heterakidae) infecting the cattle egret Bubulcus ibis (Ardeidae) [PDF]

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2023
Parasites infecting migratory birds all over the world are still under investigation. The identification of parasitic taxa infecting ardeids was done concerning their morphological and morphometric features.
R. Abdel-Gaber   +4 more
doaj   +1 more source

Global patterns of modularity and narrow host use in fish-parasitic copepods (Crustacea) [PDF]

open access: yesBiodiversity Data Journal
Parasitic copepods are amongst the most diverse and ecologically significant parasites of fish, yet their macroecological patterns remain poorly understood. In this study, a comprehensive dataset of fish–copepod associations was obtained and curated from
Francisco Neptali Morales-Serna
doaj   +3 more sources

Bacterial leaf symbiosis in angiosperms: host specificity without co-speciation. [PDF]

open access: yesPLoS ONE, 2011
Bacterial leaf symbiosis is a unique and intimate interaction between bacteria and flowering plants, in which endosymbionts are organized in specialized leaf structures.
Benny Lemaire   +4 more
doaj   +1 more source

Extensive remodeling of the Pseudomonas syringae pv. avellanae type III secretome associated with two independent host shifts onto hazelnut

open access: yesBMC Microbiology, 2012
Background Hazelnut (Corylus avellana) decline disease in Greece and Italy is caused by the convergent evolution of two distantly related lineages of Pseudomonas syringae pv. avellanae (Pav). We sequenced the genomes of three Pav isolates to determine if
O’Brien Heath E   +9 more
doaj   +1 more source

The role of RTX toxins in host specificity of animal pathogenic Pasteurellaceae [PDF]

open access: yes, 2011
RTX toxins are bacterial pore-forming toxins that are particularly abundant among pathogenic species of Pasteurellaceae, in which they play a major role in virulence.
Joachim Frey, Frey, J
core   +1 more source

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