Identification and characterization of flavonoids in the root exudate of Robinia pseudoacacia

Autor:	Petra Scheidemann, Astrid Wetzel
Rok vydání:	1997
Předmět:	chemistry.chemical_classification Exudate Chalcone Ecology biology Physiology Flavonoid Robinia food and beverages Forestry Plant Science biology.organism_classification Chrysoeriol chemistry.chemical_compound chemistry Botany Apigenin medicine Rhizobium medicine.symptom Isoliquiritigenin
Zdroj:	Trees. 11:316-321
ISSN:	1432-2285 0931-1890
DOI:	10.1007/pl00009677
Popis:	Eight compounds exuded from young roots of black locust (Robinia pseudoacacia) were separated by two-dimensional HPTLC, by HPLC and GC, and were identified by spectroscopic methods (ultraviolet/visible spectroscopy and mass spectrometry) as 4′,7-dihydroxyflavone, apigenin, naringenin, chrysoeriol and isoliquiritigenin. Structural assignments were confirmed by comparison with authentic standards. The capacity to induce β-galactosidase activity in Rhizobium sp. NGR234 containing a nod box::lacZ fusion on plasmid pA27 identified these flavonoids and the chalcone as nod gene inducers. This indicates the important role of these compounds in nodulation of this legume tree.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d07f4ba2d66c468e6843224936895bfa https://doi.org/10.1007/pl00009677 Zobrazit plný text záznamu Full text from SpringerLink