The ubiquitous bacteria S. marcescens can be found in both aquatic and soil ecosystems, and have an extremely broad host range including plants, nematodes, insects and mammals [26], [45]-[47].
Chlamydia pecorum infects a broad host range, including small and large ruminants, swine, birds and marsupials.
campestris (Xcc) that has a broad host range including Brassicaceae family is shown to overcome stomatal defense in Arabidopsis [ 14].
Both of these species have mosquitoes as their type hosts with the former having a very broad host range, including man, and the latter restricted to mosquitoes [ 25].
Assemblage B, one of the two major assemblages causing human giardiasis, has a broad host range, including cattle, sheep, pigs, horses, dogs, cats, and rabbits [ 2].
A pest or pathogen with a large number of hosts reported in the GPDD is likely to truly have a broad host range, including a large number of as yet undescribed hosts.
The recent classification of V. longisporum into the three different lineages A1xD1, A1xD2 and A1xD3 (Inderbitzin et al. 2011) includes the worldwide lineage A1xD1 with a broad host range including oilseed rape, cauliflower and Chinese cabbage.
Due to its high degree of similarity to B. pertussis and its broad host range, including animals conveniently used in laboratory studies, B. bronchiseptica is widely used as a model for Bordetella pathogenesis research.
