pathogen inBiology topic From Longman Dictionary of Contemporary English path‧o‧gen/ˈpæθədʒən, -dʒen/noun[countable]technicalsomething that causes disease in your body→germ—pathogenic/ˌpæθəˈdʒenɪk◂/adjective ...
Biology definition: Apathogenis a biological entity that possesses the ability to cause disease by invading and replicating within thehostorganism, utilizing various mechanisms to evade or subvert the host’simmune response. The dynamic relationship between pathogens and their hosts is usually guided by...
Opportunistic Pathogen Definition How do we define opportunistic pathogen? The opportunistic pathogen is an infectious pathogen that is normally commensal in the body but can cause disease when the host’s resistance is altered. They can be some viruses (referred to as “opportunistic viruses”), fu...
A simple definition of a pathogen is an organism that can overcome the defence mechanisms of the body and induce deleterious changes in the host. Arrayed against the potential pathogen are a series of systems which either confine the micro-organisms to the mucosal and skin surfaces, preventing ac...
23. Thus, elucidating the biology of quantitative pathogenicity factors and their evolutionary dynamics is timely and may require the adoption of complementary experimental approaches. To address this, we used theZymoseptoria tritici—wheat pathosystem, which is known to be largely quantitativein natura....
Isolates indistinguishable by lower-resolution techniques may be distinguishable by their sequences; indistinguishable by complete whole genome sequencing is by definition having the identical sequence. (a-d) Schematic representations of pulsed-field gel electrophoresis (PFGE) (a), seroptying (using the ...
By definition, pathogens have a negative effect on host fitness, favouring selection of enhanced defence mechanisms in the affected hosts. If pathogen fitness depends on the host, then host defence can be detrimen- tal for the pathogen, leading to selection for novel attack mec...
We can derive\({R}_{INV}\)by applying the definition of\({R}_{0}\), but this time for a population where the wild-type pathogen is endemic, instead of for a fully susceptible population. To find\({R}_{INV}\), given full cross-resistance (i.e. hosts that are infected with one...
Epiphytic microbes are those that live for some or all of their life cycle on the surface of plant leaves. Leaf surfaces are a topologically complex, physicochemically heterogeneous habitat that is home to extensive, mixed communities of resident and tra
This con- sisted in the definition of a relevant antigenic structure and simulation of population dynamics and expected lev- els of strain diversity. The main goal of this example was to highlight the fundamental functionalities of the MANTIS package, with no specific pathogen in mind. Nonethe-...