Bacillus cereusA species of rod-shaped bacteria that is a common soil saprophyte. Its spores are widespread and multiplication has been observed chiefly in foods. Contamination may lead to food poisoning.
BacteriaOne of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophic (via chemical reaction) or phototrophic (via light reaction); for chemotrophs by their source of chemical energy: lithotrophic (from inorganic compounds) or organotrophic (from organic compounds); and by where they get their CARBON: heterotrophic (from organic sources) or autotrophic (from CARBON DIOXIDE). They can also be classifed by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.
SoilThe loose surface material of the earth in which plants grow. (Webster, 3d ed)
Decomposed organic matter. It consists of numerous breakdown substances from plants including SUGARS; AMINO ACIDS; LIGNIN; FATS; and HUMIC SUBSTANCES.
Decomposing SPHAGNUM.
SporesThe reproductive elements of lower organisms, such as BACTERIA, PROTOZOA, FUNGI, and cryptogamic plants.
LeadA soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.19, symbol Pb. (Dorland, 28th)
FoodAnything which, when taken into the body, serves to nourish or build up the tissues or to supply body heat. (Dorland, 27th ed)
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