Any of a large group of microscopic organisms with a very simple cell structure Some manufacture their own food, some live as parasites on other organisms, and some live on decaying matter
(microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered plants
a simple single-celled microorganism Bacteria are classified by their shape (e g , rod, spirochete), staining properties (Gram positive or Gram negative) and habitat (aerobic, anaerobic) Many types of bacteria are pathogenic in humans
A structurally simple single cell with no nucleus One bacterium, Bacillus thuringiensis, produces a protein toxic to certain destructive insects Having plants produce this protein after genetic engineering is a form of built-in pest-resistant in plants Bacterium: - Any of a large group of microscopic organisms with a very simple cell structure Some manufacture their own food, some live as parasites on other organisms, and some live on decaying matter
Unicellular micro-organisms characterised by a plasmic membrane, lined with a rigid wall of a lipidic, proteinic and polysacchardic nature Its nucleus, devoid of a membrane, has only one chromosome, comprised of one DNA molecule, folded over on itself Bacteria reproduce by splitting There are several types of bacteria but the two principal ones are microbes - rounded in shape - and bacilli -shaped like small rods
(bacteria) A single-celled, microscopic organism existing in many forms, some of which are disease causing biochemistry The chemistry of living organisms bronchitis Inflammation of the bronchial tubes
Any of numerous unicellular microorganisms of the class Schizomycetes, occurring in a wide variety of forms, existing either as free-living organisms or as parasites, and having a wide range of biochemical, often pathogenic, properties
Cellular microorganisms, spheric (cocci) , elongated (bacillus) or spiral, without nuclear membrane which can participate to : Nitrogen cycle , fixing air nitrogen and converting organic nitrogen Carbon cycle , generating humic acids Sulphur cycle , by phosphate solubilization Organic material mineralization Some bacteria can transform cellulose (cellvibrio) , pectine, starch