Therefore, the absence of correlation between genetic and geographic distances of O. maculata populations suggests that the spatial distribution of genetic diversity of this species may be influenced by their reproductive system and history of colonization by seed dispersal, which can be carried through long distances, since they are dispersed by wind (Dressler 1993).
Our microbial partners heavily influence the mucosal and systemic immune systems and the dynamics of colonization early in life are critically involved in educating the developing immune system.
Explanations for the different ribotypes in the same horse include simultaneous transient passage of multiple strains through the gastrointestinal system or colonization of different compartments by diverse strains.
This contrasts with our system where colonization of lateral roots was visible within 15 days but intercellular growth within the cortex was first observed at 30 days.
If they really wish to avoid more of the same, they must abandon bankrupt strategies and meaningless platitudes and act vigorously to end a system of military occupation and colonization that would crumble without their support.
The intestinal microbiota is important for human health because of nutrient processing, development of the immune system, colonization resistance and stimulation of a variety of other host activities [1], [2], [3], [4].
EBO was thus considered to represent the probable front of colonization of the system, and in the following all statistical treatments involving geographic distance along the transect are based on geographic distance (in km) from the southernmost documented occurrence of the three species (population EBO).
Our study supports the contention that the survival of a bacterium as it makes its way through the digestive system and eventual colonization of the colon, is assured by the activity of two types of efflux pump systems: one that operates directly from PMF derived energy and the other from a putative ATP binding transporter.
With the addition of therapeutic agents targeting other segments of the immune system, asymptomatic colonization predisposes patients to invasive disease.
Because air-conditioning systems are operated most of the year, a large heat load is imposed on water cooling systems, thus facilitating an increased rate of colonization and multiplication of Legionella spp (21 ).
