Beneficial Bacteria - More Photos

Beneficial bacteria suppress disease, build soil structure, retain nutrients, decompose toxins, and maintain alkaline soil pH.

 

 

Bacteria Clumping

1.  Bacteria:  Rods of Bacillus sp - note large rods, in chains.  Bacteria-size is important to note, as each different length/width will likely be a different species.

Bacteria: Rods of Bacillus sp

2.  Bacteria Clumping. Epi-fluorescent microsope photo of a highly diverse bacterial community. Morphology can be used to differentiate different species: (a) medium-small coccus; (b) tiny coccus; (c) short, fat rod; (d) yeast; (e) oblong coccus or coccobacillus; (f) fat rod; (g,h) large cocci; (i) diplobacillus or bipolar rod. Total magnification is 1000x (oil immersion).

                                 

 

Bacteria Clumping

3.  Bacterial Density, Diversity, and Clumping. (a) Bacterial density approximately 200. No clumps of bacteria. Low diversity with only one type of fat, rod-shaped bacterium observed. (b) bacterial density approximately 350, with clumping. One large clump of bacteria in the middle of the field numbering approximately 100 bacteria and a smaller clump of bacteria numbering around 50 bacteria to the lower right of the large clump. (c) bacterial density approximatly 300 with high clumping. (d) Bacterial density around 1,100. Dark brown clumps across the top of the field, about six reddish-brown clumps below that, with a high concentration of bacteria in the soil solution. Good diversity with more large cocci and more long, slender rods than in the other samples. Total magnification in all four pictures is 400x.                                        

 

Bacterial Density, Diversity, and  Clumping

4.  These bacteria require sunlight to grow and so are typically only found in high concentrations at the soil surface. They produce growth hormones that can affect plants, but getting those hormones down to where roots are is a bit problematic. Many cyanobacteria fix N. Given adequate protozoa, nematodes, microarthropods, and earthworms, plant growth can be enhanced following a cyanobacterial bloom on the soil's surface, when moisture is adequate. Each individual bacterial cell in the filament is spearate from the others. They are photosynthetic, with some of their photosynthetic pigments unique to this group of bacteria.

Cyanobacteria

5.  Several strands of a much narrower diameter cyanobacterium.

Cyanobacteria

6.  Aggregate of bacteria in the middle.  Lots of bacteria, good diversity and good rods. You can see really small cocci, some larger, and then some slightly larger cocci. 

 

Aggregate of Bacteria

7.  Colony of coccobacilli stained with fluorescein diacetate.

Colony of coccobacilli

8.  1 to 1000 dilution of bacteria on a slide. Maybe you would want to dilute this one to 5000, because then, you really would get just 30 to 50 bacteria per field. 

1 to 1000 Dilution

9.  This is a scanning electron microscope shot. This is compost coated with one nanometer layer of gold-palladium. The gold-palladium will reflect electrons when you put that sample into an electron beam in an electron microscope. There are some short, tiny little rods, some cocci, and some organic matter that is not colonized. 

Scanning Electron Microscope Shot

10.  400x magnification shows massive number of bacteria in this field. Too many bacteria to count in this field.

400x Magnification

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