Journal
TREE PHYSIOLOGY
Volume 24, Issue 11, Pages 1221-1226Publisher
OXFORD UNIV PRESS
DOI: 10.1093/treephys/24.11.1221
Keywords
forestry; phase change; Pinus radiata; polyamines; Prunus persica
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Endogenous polyamine concentrations in apical buds of peach (Prunus persica (L.) Batsch cv. 'Hakuho') and monterey pine (Pinus radiata D. Don) seedlings, saplings and mature trees were analyzed by high performance liquid chromatography coupled with fluorescence detection to establish physiological correspondences and disparities between the species. Although there were many differences in polyamine metabolism between peach and monterey pine, several similarities were found. Specifically, in both species, the ratio between concentrations of free polyamines and low molecular-weight polyamine conjugates was greater than and less than unity in juvenile and adult plants, respectively. Free putrescine concentration decreased with age in both species.
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