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Microbiology Glossary
Part 2, English terms and abbreviations with explanations.
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| Term |
Explanation |
| D value |
Time required to destroy 90% of cells under specified conditions
|
| D/E |
Dey/Engley: contains sodium thioglycollate, sodium thiosulfate,
sodium bisulfite, soy lecithin, and Polysorbate 80; for neutralizing
antiseptics and disinfectants. |
| DCLS |
Desoxycholate Citrate Lactose Saccharose. (Saccharose =
Sucrose). Used for isolating Gram-negative enteric bacilli. |
| Decimal reduction time |
Time required to destroy 90% of cells under specified conditions
(D value) |
| Degree-days |
Summation of (Temperature [°F]) - 50°F) for each day in
the period April-October |
| DI |
Deionized (water) |
| Dienes Stain |
For staining Mycoplasma colonies. ‘Dienes’ is presumably the name of the discoverer,
not a chemical term. |
| DIPSO |
3-(N,N-bis[2-hydroxyethyl]amino)-2-hydroxypropanesulfonic
acid; buffer for pH range 7.0-8.2. |
| DMC |
Direct Microscopic Count |
| DNA |
Deoxyribonucleic acid |
| Dnase |
Deoxyribonuclease |
| DTM |
Dermatophyte Test Medium |
| Dye reduction |
Test for presence/activity of microorganisms by adding
either methylene blue or resazurin. The organisms reduce the dyes
from blue to colorless or
blue to red. |
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Copyright © 2010 Denzel Dyer, all rights reserved.
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