07 lec 7 Spatial distribution

07 lec 7 Spatial distribution - Soil as a habitat for...

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Soil as a habitat for microorganisms Soil as a habitat for microorganisms 6) Spatial distribution of soil organisms 6) Spatial distribution of soil organisms Required Reading : Article from O’Donnell et al., 2007. Nature Reviews Microbiology, 5:689-699 (see bspace) I. Geographical differences in soil biota II. Spatial heterogeneity of soil organisms distribution II.1. Vertical distribution within the soil profile II.2. Microscale distribution II.2.a. Cells and colonies as structuring elements II.2.b. Importance of soil aggregate as microhabitats
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Soil microorganisms can survive and grow in some unlikely and often inhospitable places
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Soil microorganisms can survive and grow in some unlikely and often inhospitable places
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Few studies have tried to verify that statement Still large gaps in our understanding of the spatial distribution of microbial diversity
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Very few studies on biogeography of microorganisms (only human / animal pathogens) Geographical differences in soil biota Dispersal mechanisms: Water transport Airborne transport Transport by birds, insects, aquatic organisms Transport by humans “Everything is everywhere,  but,  the environment  selects”
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Worldwide Distribution Even isolated environments show a wide range of microbial species introduced from other places
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07 lec 7 Spatial distribution - Soil as a habitat for...

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