A chemical agent (e.g. polyethylene glycol, mannitol, glucose or sucrose) employed to maintain the osmotic potential of a nutrient medium equivalent to that of the cultured cells, i.e. the medium and the cells are isotonic. Because of this osmotic equilibrium, cells are not damaged in vitro.

Glossary of Biotechnology for Food and Agriculture . 2015.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • osmoticum — noun Any substance that acts to supplement osmotic pressure in a plant or a culture of plant cells …   Wiktionary

  • отек осмотический — (о. osmoticum) О., обусловленный повышенным осмотическим давлением тканевой жидкости, напр. при накоплении продуктов тканевого обмена, нарушении выведения солей …   Большой медицинский словарь

  • Cytorrhysis — Schematic of typical plant cell Cytorrhysis is the complete collapse of a plant cell s cell wall within plants due to the loss of water through osmosis. This always follows plasmolysis. Cytorrhysis will cause a much greater loss of shape and… …   Wikipedia

  • Отёк — I избыточное скопление жидкости в тканях и полостях организма. Чаще наблюдается в коже, подкожной клетчатке, плевральных и брюшной полостях. Отечная жидкость содержит воду, соли натрия и калия, некоторое количество белка и лейкоцитов. Через… …   Медицинская энциклопедия

  • mannitol — A sugar alcohol widely distributed in plants. Commonly used as a nutrient and osmoticum in suspension media for plant protoplasts …   Glossary of Biotechnology

  • polyvinylpyrrolidone — Abbreviation: PVP An occasional constituent of plant tissue culture isolation media. PVP is of variable molecular weight and of general formula (C6H9NO)n. Its antioxidant properties are used to prevent oxidative browning of excised plant tissues …   Glossary of Biotechnology

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”