ENDOGENOUS CYTOKININS IN ROSE PETALS AND THE EFFECT OF EXOGENOUSLY APPLIED CYTOKININS ON FLOWER SENESCENCE

Authors
LUKASZEWSKA AJ BIANCO J BARTHE P LEPAGEDEGIVRY MT
Citation
Aj. Lukaszewska et al., ENDOGENOUS CYTOKININS IN ROSE PETALS AND THE EFFECT OF EXOGENOUSLY APPLIED CYTOKININS ON FLOWER SENESCENCE, Plant growth regulation, 14(2), 1994, pp. 119-126
Citations number
19
Categorie Soggetti
Plant Sciences
Journal title
Plant growth regulation → ACNP
ISSN journal
01676903
Volume
14
Issue
2
Year of publication
1994
Pages
119 - 126
Database
ISI
SICI code
0167-6903(1994)14:2<119:ECIRPA>2.0.ZU;2-Q
Abstract
In extracts from rose petals cytokinin activity was detected by Amaran thus bioassay in HPLC eluates corresponding to the standards: Z, ZR, 2 iP and 2iPA; subsequently, the presence of two groups of endogenous cy tokinins was confirmed by ELISA. Measurements of senesence indicators (cell sap osmolarity and conductivity) and observations of flower vase -life indicated that when the above cytokinins were applied as holding solutions they delayed flower senescence by 34-56% and prolonged rose longevity.