Identification of phenylamide phytoalexins and characterization of inducible phenylamide metabolism in wheat.
Bipolaris sorokiniana
Fusarium graminearum
Phenylamide
Phytoalexin
Poaceae
Triticum aestivum
Journal
Phytochemistry
ISSN: 1873-3700
Titre abrégé: Phytochemistry
Pays: England
ID NLM: 0151434
Informations de publication
Date de publication:
Nov 2019
Nov 2019
Historique:
received:
07
05
2019
revised:
15
06
2019
accepted:
17
08
2019
pubmed:
27
8
2019
medline:
4
12
2019
entrez:
27
8
2019
Statut:
ppublish
Résumé
Changes in specialized metabolites were analyzed in wheat leaves inoculated with Bipolaris sorokiniana, the causal agent of spot blotch of Poaceae species. HPLC analysis detected the accumulation of six compounds in B. sorokiniana-infected leaves. Of these, we purified two compounds by silica gel and ODS column chromatography and preparative HPLC, and identified them as cinnamic acid amides, N-cinnamoyl-9-hydroxy-8-oxotryptamine and N-cinnamoyl-8-oxotryptamine, by spectroscopic analyses. The remaining four compounds were predicted to be p-coumaric acid amides of hydroxyputrescine, hydroxyagmatine, hydroxydehydroagmatine, and agmatine by mass spectrometry. The accumulation of two cinnamic acid amides was also induced by Fusarium graminearum infection, and by treatment with CuCl
Identifiants
pubmed: 31450090
pii: S0031-9422(19)30414-5
doi: 10.1016/j.phytochem.2019.112098
pii:
doi:
Substances chimiques
Amides
0
Sesquiterpenes
0
Copper
789U1901C5
cupric chloride
S2QG84156O
Phytoalexins
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
112098Informations de copyright
Copyright © 2019 Elsevier Ltd. All rights reserved.