FIG. 2.
Abundance of Methylobacterium on different plant species collected at two different time points (black bars, 22 March; gray bars, 12 April). The bars indicate the means for five samples from individual plants, and the error bars indicate standard deviations. The numbers of samples with numbers of CFU below the detection limit are indicated above the columns. The detection limit was dependent on the amount of plant material analyzed and ranged from 8.7 × 102 to 1.3 × 104 cells per g (fresh weight). For the samples with numbers of cells below the detection limit a number of cells just below the detection limit was assumed.