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BREATHING PORE [1 record]

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Alphabetical list of terms

Record 1 2004-10-20

English

Subject field(s)
  • Xylology (The Study of Wood)
  • Plant Biology
DEF

A pore that is common in the stems of woody plants, is usually opposite a stoma, is composed chiefly of loosely packed unsuberized cells produced by a phellogen, and is the path of exchange of gases between the atmosphere and the stem tissues.

French

Domaine(s)
  • Xylologie (Étude des bois)
  • Biologie végétale
DEF

Voie d'aération dans le liège des arbres, ayant l'aspect d'une petite tache poreuse à la surface des rameaux.

CONT

Les échanges gazeux entre le milieu externe et la plante sont assurés, au travers du liège, par des ouvertures en forme de boutonnières (lenticelles), qui sont, en fait, des excroissances constituées de massifs cellulaires lâches. Les cavités brunes des bouchons sont des lenticelles du liège.

OBS

liège : Tissu secondaire formé de cellules mortes remplies d'air et dont la membrane est imprégnée de subérine [...]

Spanish

Campo(s) temático(s)
  • Xilología (Estudio de la madera)
  • Biología vegetal
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