Document Detail

Fluctuations of different endogenous phenolic compounds and cinnamic acid in the first days of the rooting process of cherry rootstock 'GiSelA 5' leafy cuttings.
MedLine Citation:
PMID:  15940876     Owner:  NLM     Status:  MEDLINE    
The relationship between the phenol composition of rooting zones and rootability was studied in the first days after the establishment of cuttings. The trial included two different types of cuttings (basal and terminal). Additionally, the influence of exogenously applied auxin (IBA) was observed. The best rooting results (55.6%) were achieved with terminal IBA treated cuttings, while only 1.9% of basal cuttings formed roots. The auxin treatment increased the root formation in terminal, but not in basal cuttings. Low rooting rate of basal cuttings was probably due to higher lignification rate of the basal tissue which can represent a mechanical barrier for root emergence. When measuring phenolic compounds and cinnamic acid, terminal cuttings contained higher (rutin, vanillic acid, (-)-epicatechin, caffeic acid and sinapinic acid) or equal concentrations of detected phenols as basal cuttings, while applied auxin did not influence the level of any of discussed phenolics, neither of cinnamic acid. It is to assume that cuttings for starting of root induction phase should contain certain levels of several phenolic compounds, but higher influence on rooting success is to be ascribed to the impact of the auxin level. During the time of the experiment concentrations of monophenols sinapinic acid and vanillic acid rapidly decreased. This decrease was more pronounced in terminal cuttings, which might have a better mechanism of lowering those two compounds to which a negative influence on rooting is ascribed. Fluctuations and differences between treatments of other phenolics were not significant enough to influence the rooting process.
Mateja Trobec; Franci Stampar; Robert Veberic; Gregor Osterc
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of plant physiology     Volume:  162     ISSN:  0176-1617     ISO Abbreviation:  J. Plant Physiol.     Publication Date:  2005 May 
Date Detail:
Created Date:  2005-06-08     Completed Date:  2005-06-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882059     Medline TA:  J Plant Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  589-97     Citation Subset:  IM    
Biotechnical Faculty, Agronomy Department, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia.
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MeSH Terms
Cinnamates / metabolism*
Indoles / pharmacology
Phenols / metabolism*
Plant Growth Regulators / pharmacology
Plant Leaves / physiology*
Plant Roots / growth & development*
Prunus / drug effects,  physiology*
Time Factors
Reg. No./Substance:
0/Cinnamates; 0/Indoles; 0/Phenols; 0/Plant Growth Regulators; 133-32-4/indolebutyric acid; 621-82-9/cinnamic acid

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