Pictures
|
|
|
| Phase-contrast micrograph of bogwater containing microorganisms (and other material) from McLean Bog. Note long filamentous rod. | Fluorescence micrograph of the same field. The sample was stained with acridine orange (AO), which fluoresces bright green when bound to DNA allowing visualization of microbes. Bright red fluorescing material is chlorophyll from plants. It Is not clear why the filamentous rod stains more red than green. |
|
|
|
| Phase-contrast micrograph of a decaying plant particle from McLean Bog. Microorganisms are difficult to discern. | Fluorescence micrograph of AO-stained organisms Note the rod-shaped microorganisms. Over 90% of the microorganisms in McLean Bog are attached to particles. |
|
|
|
| Phase contrast micrograph of a "short rod" that grows anaerobically on glucose at pH 4.5 and represents a new genus in the Bacteroidetes phylum of the Bacteria. | Phase contrast micrograph of a spiral shaped organism that grows anaerobically and aerobically on glucose at pH 4.5, and is in the Beta subphylum of the Proteobacteria most closely related to Chromobacterium (94% 16S rRNA identity). |
