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Gewählte Publikation:

Publikationstyp: Zeitschriftenaufsatz
Dokumentart: Originalarbeit

Publikationsjahr: 2010

AutorInnen: Nell, M; Wawrosch, C; Steinkellner, S; Vierheilig, H; Kopp, B; Lössl, A; Franz, C; Novak, J; Zitterl-Eglseer, K

Titel: Root colonization by symbiotic arbuscular mycorrhizal fungi increases sesquiterpenic acid concentrations in Valeriana officinalis L.

Quelle: Planta Med. 2010; 76(4):393-398



Autor/innen der Vetmeduni Vienna:

Franz Chlodwig
Nell Monika
Novak Johannes
Zitterl-Eglseer Karin

Beteiligte Vetmed-Organisationseinheiten
Institut für Tierernährung und funktionelle Pflanzenstoffe


Abstract:
In some medicinal plants a specific plant-fungus association, known as arbuscular mycorrhizal (AM) symbiosis, increases the levels of secondary plant metabolites and/or plant growth. In this study, the effects of three different AM treatments on biomass and sesquiterpenic acid concentrations in two IN VITRO propagated genotypes of valerian ( VALERIANA OFFICINALIS L., Valerianaceae) were investigated. Valerenic, acetoxyvalerenic and hydroxyvalerenic acid levels were analyzed in the rhizome and in two root fractions. Two of the AM treatments significantly increased the levels of sesquiterpenic acids in the underground parts of valerian. These treatments, however, influenced the biomass of rhizomes and roots negatively. Therefore this observed increase was not accompanied by an increase in yield of sesquiterpenic acids per plant. Furthermore, one of the two genotypes had remarkably high hydroxyvalerenic acid contents and can be regarded as a hydroxyvalerenic acid chemotype.

Keywords Pubmed: Biomass
Fungi*
Genotype
Indenes/metabolism*
Mycorrhizae*
Plant Extracts/metabolism*
Plant Roots/growth & development*
Rhizome
Sesquiterpenes/metabolism*
Symbiosis
Valerian/genetics
Valerian/growth & development
Valerian/metabolism*


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