Within-host competitive exclusion among species of the anther smut pathogen
نویسندگان
چکیده
منابع مشابه
Dynamics of multiple infection and within-host competition by the anther-smut pathogen.
Infection of one host by multiple pathogen genotypes represents an important area of pathogen ecology and evolution that lacks a broad empirical foundation. Multiple infection of Silene latifolia by Microbotryum violaceum was studied under field and greenhouse conditions using the natural polymorphism for mating-type bias as a marker. Field transmission resulted in frequent multiple infection, ...
متن کاملDistribution of the anther-smut pathogen Microbotryum on species of the Caryophyllaceae
*Understanding disease distributions is of fundamental and applied importance, yet few studies benefit from integrating broad sampling with ecological and phylogenetic data. Here, anther-smut disease, caused by the fungus Microbotryum, was assessed using herbarium specimens of Silene and allied genera of the Caryophyllaceae. *A total of 42,000 herbarium specimens were examined, and plant geogra...
متن کاملPhylogenetic evidence of host-specific cryptic species in the anther smut fungus.
Cryptic structure of species complexes confounds an accurate accounting of biological diversity in natural systems. Also, cryptic sibling species often become specialized to different ecological conditions, for instance, with host specialization by cryptic parasite species. The fungus Microbotryum violaceum causes anther smut disease in plants of Caryophyllaceae, and the degree of specializatio...
متن کاملHistory of the invasion of the anther smut pathogen on Silene latifolia in North America.
Understanding the routes of pathogen introduction contributes greatly to efforts to protect against future disease emergence. Here, we investigated the history of the invasion in North America by the fungal pathogen Microbotryum lychnidis-dioicae, which causes the anther smut disease on the white campion Silene latifolia. This system is a well-studied model in evolutionary biology and ecology o...
متن کاملComplex food webs prevent competitive exclusion among producer species.
Herbivorous top-down forces and bottom-up competition for nutrients determine the coexistence and relative biomass patterns of producer species. Combining models of predator-prey and producer-nutrient interactions with a structural model of complex food webs, I investigated these two aspects in a dynamic food-web model. While competitive exclusion leads to persistence of only one producer speci...
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ژورنال
عنوان ژورنال: BMC Ecology
سال: 2009
ISSN: 1472-6785
DOI: 10.1186/1472-6785-9-11