| blue-green algae | The former name for the blue-green bacteria, now classified as Cyanobacteria. A group of prokaryotes. Synonym: Cyanobacteria. (05 May 2002) |
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| blue-green bacteria | <organism> Modern term for the blue green algae, prokaryotic cells that use chlorophyll on intracytoplasmic membranes for photosynthesis. The blue green colour is due to the presence of phycobiliproteins. Found as single cells, colonies or simple filaments. In Anabaena, in which the cells are arranged as a filament, heterocysts capable of nitrogen fixation occur at regular intervals. According to the endosymbiont theory Cyanobacteria are the progenitors of chloroplasts. (18 Nov 1997) |
| blue-green bacterium | <organism> Modern term for the blue green algae, prokaryotic cells that use chlorophyll on intracytoplasmic membranes for photosynthesis. The blue green colour is due to the presence of phycobiliproteins. Found as single cells, colonies or simple filaments. In Anabaena, in which the cells are arranged as a filament, heterocysts capable of nitrogen fixation occur at regular intervals. According to the endosymbiont theory Cyanobacteria are the progenitors of chloroplasts. (18 Nov 1997) |
| brilliant green | The sulfate of di-(p-diethylamino)-triphenyl carbinolanhydride. An indicator dye that changes from yellow to green at pH 0.0 to 2.6; also used as a topical antiseptic and as a selective bacteriostatic agent in culture media. Synonym: ethyl green. (05 Mar 2000) |
| brilliant green salt agar | A highly selective culture medium consisting of agar with peptone, lactose, sodium taurocholate, brilliant green, and picric acid solution used in the primary isolation of enteric pathogens such as Salmonella species. (05 Mar 2000) |
| bromcresol green | <chemical> An indicator and reagent. It has been used in serum albumin determinations and as a pH indicator. Pharmacological action: indicators and reagents. Chemical name: Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(2,6-dibromo-3-methyl-, S,S-dioxide (12 Dec 1998) |
| bromocresol green | Tetrabromo-m-cresolsulfonphthalein;an indicator dye changing from yellow to blue at pH 4.7; used to track DNA in agarose electrophoresis, and in a dye-binding method for analysis of serum albumin. (05 Mar 2000) |
| malachite green | Tetramethyl-di-p-aminotriphenylcarbinol;a dye that has been used as a wound antiseptic, as a treatment of mycotic skin infections, and in biological staining of tissues and bacteria. Origin: G. Malache, a mallow (05 Mar 2000) |
| Paris green | Cupric acetoarsenite, used as an insecticide and as a pigment. (05 Mar 2000) |
| green | 1. Having the colour of grass when fresh and growing; resembling that colour of the solar spectrum which is between the yellow and the blue; verdant; emerald. 2. Having a sickly colour; wan. "To look so green and pale." (Shak) 3. Full of life aud vigor; fresh and vigorous; new; recent; as, a green manhood; a green wound. "As valid against such an old and beneficent government as against . . . The greenest usurpation." (Burke) 4. Not ripe; immature; not fully grown or ripened; as, green fruit, corn, vegetables, etc. 5. Not roasted; half raw. "We say the meat is green when half roasted." (L. Watts) 6. Immature in age or experience; young; raw; not trained; awkward; as, green in years or judgment. "I might be angry with the officious zeal which supposes that its green conceptions can instruct my gray hairs." (Sir W. Scott) 7. Not seasoned; not dry; containing its natural juices; as, green wood, timber, etc. <botany> Green brier, a common European woodpecker (Picus viridis); called also yaffle. Origin: OE. Grene, AS. Gr?ne; akin to D. Groen, OS. Gr?ni, OHG. Gruoni, G. Gr?n, Dan. & Sw. Gr?n, Icel. Gr?nn; fr. The root of E. Grow. See Grow. 1. The colour of growing plants; the colour of the solar spectrum intermediate between the yellow and the blue. 2. A grassy plain or plat; a piece of ground covered with verdant herbage; as, the village green. "O'er the smooth enameled green." (Milton) 3. Fresh leaves or branches of trees or other plants; wreaths; usually in the plural. "In that soft season when descending showers Call forth the greens, and wake the rising flowers." (Pope) 4. Leaves and stems of young plants, as spinach, beets, etc, which in their green state are boiled for food. 5. Any substance or pigment of a green colour. <chemistry> Alkali green, a green pigment, consisting essentially of a hydrous arsenite of copper; called also Swedish green. It may enter into various pigments called parrot green, pickel green, Brunswick green, nereid green, or emerald green. Source: Websters Dictionary (01 Mar 1998) |
| Green algae | <botany> Division of algae containing photosynthetic pigments similar to those in higher plants and having a green colour. Includes unicellular forms, filaments and leaf like thalluses (e.g. Ulva). Some members form coenobia and the Characean algae have branched filaments. (18 Nov 1997) |
| green bacteria | <microbiology> Anoxygenic phototrophs containing chlorosomes and bacteriochlorophyll c, cs, d or e and light harvesting chlorophyll. (09 Oct 1997) |
| green-broom | <botany> A plant of the genus Genista (G. Tinctoria); dyer's weed. Synonym: greenweed. Source: Websters Dictionary (01 Mar 1998) |
| green cancer | An obsolete term for chloroma. (05 Mar 2000) |
| green fluorescent protein | <protein> A protein found in jellyfish which fluoresces, or glows green visible light when excited by UV light with a wavelength of 395 nanometres. It can function as a biological marker when attached to other proteins. The structure of the protein is cylindrical with the glowing component, an amino acid complex called a fluorophore, in the middle of it. (09 Oct 1997) |