| D008854 |
Microscopy, Electron |
Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. |
Electron Microscopy |
|
| D003773 |
Dental Plaque |
A film that attaches to teeth, often causing DENTAL CARIES and GINGIVITIS. It is composed of MUCINS, secreted from salivary glands, and microorganisms. |
Plaque, Dental |
|
| D005856 |
Germ-Free Life |
Animals not contaminated by or associated with any foreign organisms. |
Axenic Animals,Gnotobiotics,Germfree Life,Animal, Axenic,Animals, Axenic,Axenic Animal,Germ Free Life,Gnotobiotic,Life, Germ-Free,Life, Germfree |
|
| D000190 |
Actinomyces |
A genus of gram-positive, rod-shaped bacteria whose organisms are nonmotile. Filaments that may be present in certain species are either straight or wavy and may have swollen or clubbed heads. |
|
|
| D000818 |
Animals |
Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. |
Animal,Metazoa,Animalia |
|
| D001430 |
Bacteriocins |
Substances elaborated by specific strains of bacteria that are lethal against other strains of the same or related species. They are protein or lipopolysaccharide-protein complexes used in taxonomy studies of bacteria. |
Bacteriocin,Lantibiotic,Lantibiotics |
|
| D013295 |
Streptococcus mutans |
A polysaccharide-producing species of STREPTOCOCCUS isolated from human dental plaque. |
|
|
| D051381 |
Rats |
The common name for the genus Rattus. |
Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus |
|