Bahar Shahnavaz - Department of Biology, Faculty of Science, Ferdowsi university of Mashhad, Mashhad, Iran
Roberto A. Geremia - Laboratoire d’Ecologie Alpine UJF/ CNRS, Université de Grenoble, 2233, rue de la Piscine, BP 53 Bat D Biologie,Grenoble F-38041, France

Bacteria play a major role in environmental processes. However, the spatial and seasonal variations and environmental impact factors on different bacterial groups have been poorly studied. In the present study, we compared the spatial and seasonal variations of two bacterial groups (Acidobacteria, Actinobacteria) fromEarly Snow Melt and Late Snow Melt locations in Alpine tundra by CE-SSCP method. We examined correlation between the two groups and environmental factors. The results revealed that pH of soil is the essential factor for structure of two bacterial groups. The SSCP pattern of Acidobacteria is very similar to theoverall bacterial communities in our previous study, while both bacterial communities are highly influenced by seasonal variations with an independent pattern

Alpine soil, Single Strand Conformation Polymorphism (SSCP), Acidobacteria, Actinobacteria, pH