title: Cambium pre-activation in beech correlates with a strong temporary increase of calcium in cambium and phloem but not in xylem cells.
abstract: Using secondary ion mass spectrometry (SIMS), calcium was imaged in cambium cells and in the adjacent secondary phloem and xylem cells during the different phases of cambium functioning in beech (Fagus sylvatica L.). At the end of the period of quiescence, immediately before the resumption of cell divisions (i.e. at the cambium pre-activation phase), a strong temporary increase of calcium concentration was observed to take place in cambium and phloem but not in xylem cells.
authors.affiliation: Laboratoire des Processus Ioniques Cellulaires, UPRESA CNRS 6037, Mont Saint Aignan, France.
authors.forename: M L
authors.initials: ML
authors.lastname: Follet-Gueye
authors.forename: M C
authors.initials: MC
authors.lastname: Verdus
authors.forename: M
authors.initials: M
authors.lastname: Demarty
authors.forename: M
authors.initials: M
authors.lastname: Thellier
authors.forename: C
authors.initials: C
authors.lastname: Ripoll
mesh_terms: D002118:Calcium / Q000032:analysis* / Q000378:metabolism*; D007091:Image Processing, Computer-Assisted; D018520:Plant Shoots / Q000166:cytology* / Q000378:metabolism*; D012621:Seasons; D018629:Spectrometry, Mass, Secondary Ion / Q000379:methods; D014197:Trees / Q000378:metabolism*
chemical_list: D002118:Calcium