spheroplast

spheroplast
A bacterial cell from which the rigid cell wall has been incompletely removed. The bacterium loses its characteristic shape and becomes round. [sphero- + G. plastos, formed]

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sphe·ro·plast 'sfir-ə-.plast, 'sfer- n a bacterium or yeast cell that has been modified by nutritional or environmental factors or by artificial means (as by the use of a lysozyme) and that is characterized by partial loss of the cell wall and by increased osmotic sensitivity

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sphe·ro·plast (sfērґo-plast) a membrane-bound, spherical cell that results after partial or complete removal of the cell wall from a bacterial, yeast, or fungal cell; it is dependent for its integrity on an isotonic or hypertonic medium. Cf. protoplast (def. 3).

Medical dictionary. 2011.

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Look at other dictionaries:

  • spheroplast — spheroplast. См. сферопласт. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Spheroplast — A spheroplast is a cell from which the cell wall has been almost completely removed, as by the action of penicillin. The name stems from the fact that after a microbe s cell wall is digested, membrane tension causes the cell to acquire a… …   Wikipedia

  • spheroplast — (AlteRNAtive spelling: sphaeroplast). A microbial or plant cell from which most of the cell wall has been removed, usually by enzymatic treatment. Strictly, in a spheroplast, some of the cell wall remains, while in a protoplast the cell wall has… …   Glossary of Biotechnology

  • spheroplast — noun Date: circa 1920 a bacterium or yeast cell that is modified (as by enzymatic action) so that there is partial loss of the cell wall and increased osmotic sensitivity …   New Collegiate Dictionary

  • spheroplast — (sfĭr o plast) A relatively spherical cell formed by the weakening or partial removal of the rigid cell wall component (e.g., by penicillin treatment of gram negative bacteria). Spheroplasts are usually osmotically sensitive …   Dictionary of microbiology

  • spheroplast — Bacterium from which the cell wall has been removed but that has not lysed …   Dictionary of molecular biology

  • spheroplast — /sfear euh plast , sfer /, n. Bacteriol. a Gram negative bacterial cell with a cell wall that has been altered or is partly missing, resulting in a spherical shape. [1915 20; SPHERO + PLAST] * * * …   Universalium

  • spheroplast — noun A cell from which the cell wall has been removed …   Wiktionary

  • spheroplast — sphe·ro·plast …   English syllables

  • spheroplast — sphe•ro•plast [[t]ˈsfɪər əˌplæst, ˈsfɛr [/t]] n. mcr a Gram negative bacterial cell with a cell wall that has been altered or is partly missing, resulting in a spherical shape • Etymology: 1958 …   From formal English to slang

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