PuSH - Publikationsserver des Helmholtz Zentrums München

Schnitzler, J.-P. ; Jungblut, T.P. ; Feicht, C. ; Köfferlein, M. ; Langebartels, C. ; Heller, W. ; Sandermann, H.

UV-B induction of flavonoid biosynthesis in Scots pine (Pinus sylvestris L.) seedlings.

Trees-Struct. Funct. 11, 162-168 (1997)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Cultivation of Scots pine (Pinus sylvestris L.) seedlings under simulated global radiation including the UV-B band (280-320 nm; 220 mW m(-2) UV-B-BE) led to increased formation of the diacylated flavonol glucosides 3'',6''-di-p-coumaroyl-astragalin and 3'',6''-di-p-coumaroyl-isoquercitrin in primary and cotyledonary needles, respectively. 3'',6''-Di-p-coumaroyl-astragalin was also the main constitutive diacylated flavonol glucoside in both needle types. This compound predominantly accumulated in primary needles upon UV-B irradiation, and reached concentrations of 2.4 mu mol g(-1) fresh weight (fw). Its concentration was only weakly affected in cotyledonary needles. 3'',6''-Di-p-coumaroyl-isoquercitrin was mainly induced in cotyledonary needles with maximum concentrations of 0.8 to 0.9 mu mol g(-1) fw, but was virtually unaffected in primary needles under the same irradiation conditions. Pulse labelling with L-(U-C-14)phenylalanine revealed that these metabolites were formed de novo. Phenylalanine ammonialyase (EC 4.3.1.5) and chalcone synthase (EC 2.3.1.74) were only slightly induced by the UV-B treatment. The results described here represent the first report on UV-B-induced flavonoid biosynthesis in a conifer species.
Altmetric
Weitere Metriken?
[➜Einloggen]
Zusatzinfos bearbeiten [➜Einloggen]
Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter chalcone synthase; flavonoids; phenylalanine ammonia-lyase; Scots pine; UV-B radiation; ULTRAVIOLET-B; CHALCONE SYNTHASE; RADIATION; PLANTS; GROWTH; LIGHT; OZONE; PENETRATION; RESPONSES; PRODUCTS
ISSN (print) / ISBN 0931-1890
e-ISSN 1432-2285
Zeitschrift Trees - Structure and Function
Quellenangaben Band: 11, Heft: 3, Seiten: 162-168 Artikelnummer: , Supplement: ,
Verlag Springer
Verlagsort Berlin ; Heidelberg ; New York
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Biochemical Plant Pathology (BIOP)
Research Unit Environmental Simulation (EUS)