Response of Bacterial Community Structure in the Bulk Soil and Rice Straw Residues under Different Crop Rotation Systems

Figure 2

Bacterial 16S rRNA gene DGGE fingerprints (a) of the bacterial community in the bulk soil of the different microcosm set-ups, (b) corresponding UPGMA, and (c) PCA clustering at day 50. In the DGGE fingerprint, the microcosm setups from which the fingerprints originated are indicated above the lane numbers. Lane L: 16S rRNA gene DGGE ladder. In the UPGMA clustering, the number mentioned before the indicated microcosm setup corresponds to the lane number in the DGGE fingerprint. In the PCA analysis, the symbol corresponds with a particular microcosm setup as follows: (solid triangle) SR-AN; (open triangle) CTSR-AN; (solid diamond) SR-AE; (open diamond) CTSR-AE; (solid circle) SB-AN; (open circle) CTSB-AN; (solid square) SB-AE and (open square) CTSB-AE.

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