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. 2019 Jun 19;10:1383. doi: 10.3389/fmicb.2019.01383

FIGURE 4.

FIGURE 4

Simultaneous visualization, by multicolor FISH, of seven microbial target groups in activated sludge. The target organisms, assigned false colors, rRNA-targeted oligonucleotide probes, and fluorochromes are indicated. (A) Combined maximum intensity projection of confocal image stacks of each probe signal. Scale bar, 20 μm. The size of the image stacks along the z-axis was 12 μm. For the purpose of illustration, the brightness of the projection was enhanced by using the respective tool of the daime software. (B) Enlarged part of the image as indicated by the frame in panel (A).