FIG. 1.

SSCP profiles of rhizosphere bacterial communities from the ozone control treatment (CF + 25) of Veronica chamaedrys, Poa pratensis, Anthoxanthum odoratum, Rumex acetosa, and Achillea millefolium. Four independent replicates are shown for each species. The 16S rRNA genes were PCR amplified with the universal primers Com1 and Com2-Ph. M, lanes with SSCP migration markers, which consisted of PCR-amplified rRNA genes from pure cultures of (from top to bottom) Bacillus licheniformis, Rhizobium trifolii, Flavobacterium johnsoniae, and Rhizobium radiobacter (double band).