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Hormone levels in the cambial region of intact Picea abies during the onset of cambial activity
Author(s) -
Eklund Leif
Publication year - 1991
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1991.tb02921.x
Subject(s) - picea abies , ethylene , period (music) , botany , cambium , horticulture , biology , chemistry , biochemistry , xylem , physics , acoustics , catalysis
Microdialysis probes were used to sample the cambial region of Picea abies stems during the cambial reactivation period. The concentrations of ethylene and zeatinriboside in each sample were measured by gas chromatography and enzyme‐linked immuno‐sorbent assay, respectively. The ethylene level increased throughout the experimental period, except for a temporary decrease that occurred about the time of budburst on the lower branches. The zeatin‐riboside level changed relatively little during the same period. The results indicate that increased activity in the cambial region was associated with an increase in the level of ethylene but not of zeatinriboside.