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PLANT CELL TURGOR PRESSURE [1 record]
Record 1 - internal organization data 2010-03-11
Record 1, English
Record 1, Subject field(s)
- Plant Biology
- Biophysics
Record 1, Main entry term, English
- turgor pressure
1, record 1, English, turgor%20pressure
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The pressure developed as the result of fluid in a turgid (swollen) plant cell caused by the osmotic diffusion toward the inside of a cell. 2, record 1, English, - turgor%20pressure
Record number: 1, Textual support number: 1 CONT
Turgor pressure is the force that is exerted on a plant's cell wall by the water (in the cytoplasm) within the cell. The water presses against the cell wall from within, giving the plant cell rigidity, helping it keep its shape. Turgor pressure is the mechanism that changes the shape of the guard cells that open a plant's stomata, pores located on the underside of leaves. 3, record 1, English, - turgor%20pressure
Record number: 1, Textual support number: 2 CONT
Saline soil environments can affect the necessary plant cell turgor pressure by disrupting the osmotic balance. 2, record 1, English, - turgor%20pressure
Record 1, Key term(s)
- cell turgor pressure
- plant cell turgor pressure
Record 1, French
Record 1, Domaine(s)
- Biologie végétale
- Biophysique
Record 1, Main entry term, French
- pression de turgescence
1, record 1, French, pression%20de%20turgescence
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- pression de turgescence cellulaire 2, record 1, French, pression%20de%20turgescence%20cellulaire
correct, feminine noun
- pression de turgescence des cellules 3, record 1, French, pression%20de%20turgescence%20des%20cellules
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La croissance cellulaire est une déformation irréversible de la cellule. Celle-ci ne peut se réaliser que si sa paroi est susceptible de se déformer. Quelque soit la plasticité (potentialité de déformation irréversible) de la paroi, celle-ci ne peut s'exprimer que si la paroi est soumise à une pression ou à une tension. Expérimentalement, il est possible d'exercer une tension à l'aide d'un extensomètre. "In vivo", c'est la pression interne de la cellule ou pression de turgescence qui effectuera ce rôle. La pression de turgescence est fonction de la différence entre les potentiels hydriques interne et externe. Elle est en première approximation proportionnelle à la différence des pressions osmotiques interne et externe. Il est possible de faire varier la pression de turgescence d'une cellule en faisant varier la pression osmotique du milieu extérieur. 4, record 1, French, - pression%20de%20turgescence
Record number: 1, Textual support number: 2 CONT
La croissance d'un tissu végétal dépend de la pression de turgescence exercée dans les cellules et d'une résistance à la déformation située dans les parois. 5, record 1, French, - pression%20de%20turgescence
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Biología vegetal
- Biofísica
Record 1, Main entry term, Spanish
- presión de turgencia
1, record 1, Spanish, presi%C3%B3n%20de%20turgencia
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Presión en el interior de una célula que resulta de la absorción de agua en las vacuolas y la imbibición de agua por el protoplasma. 1, record 1, Spanish, - presi%C3%B3n%20de%20turgencia
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