Cargando…

Salicylic acid and salicylic acid glucoside in xylem sap of Brassica napus infected with Verticillium longisporum

Salicylic acid (SA) and its glucoside (SAG) were detected in xylem sap of Brassica napus by HPLC–MS. Concentrations of SA and SAG in xylem sap from the root and hypocotyl of the plant, and in extracts of shoots above the hypocotyl, increased after infection with the vascular pathogen Verticillium lo...

Descripción completa

Detalles Bibliográficos
Autores principales: Ratzinger, Astrid, Riediger, Nadine, von Tiedemann, Andreas, Karlovsky, Petr
Formato: Texto
Lenguaje:English
Publicado: Springer Japan 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2776162/
https://www.ncbi.nlm.nih.gov/pubmed/19449088
http://dx.doi.org/10.1007/s10265-009-0237-5
_version_ 1782174058949902336
author Ratzinger, Astrid
Riediger, Nadine
von Tiedemann, Andreas
Karlovsky, Petr
author_facet Ratzinger, Astrid
Riediger, Nadine
von Tiedemann, Andreas
Karlovsky, Petr
author_sort Ratzinger, Astrid
collection PubMed
description Salicylic acid (SA) and its glucoside (SAG) were detected in xylem sap of Brassica napus by HPLC–MS. Concentrations of SA and SAG in xylem sap from the root and hypocotyl of the plant, and in extracts of shoots above the hypocotyl, increased after infection with the vascular pathogen Verticillium longisporum. Both concentrations were correlated with disease severity assessed as the reduction in shoot length. Furthermore, SAG levels in shoot extracts were correlated with the amount of V. longisporum DNA in the hypocotyls. Although the concentration of SAG (but not SA) in xylem sap of infected plants gradually declined from 14 to 35 days post infection, SAG levels remained significantly higher than in uninfected plants during the whole experiment. Jasmonic acid (JA) and abscisic acid (ABA) levels in xylem sap were not affected by infection with V. longisporum. SA and SAG extend the list of phytohormones potentially transported from root to shoot with the transpiration stream. The physiological relevance of this transport and its contribution to the distribution of SA in plants remain to be elucidated.
format Text
id pubmed-2776162
institution National Center for Biotechnology Information
language English
publishDate 2009
publisher Springer Japan
record_format MEDLINE/PubMed
spelling pubmed-27761622009-11-16 Salicylic acid and salicylic acid glucoside in xylem sap of Brassica napus infected with Verticillium longisporum Ratzinger, Astrid Riediger, Nadine von Tiedemann, Andreas Karlovsky, Petr J Plant Res Regular Paper Salicylic acid (SA) and its glucoside (SAG) were detected in xylem sap of Brassica napus by HPLC–MS. Concentrations of SA and SAG in xylem sap from the root and hypocotyl of the plant, and in extracts of shoots above the hypocotyl, increased after infection with the vascular pathogen Verticillium longisporum. Both concentrations were correlated with disease severity assessed as the reduction in shoot length. Furthermore, SAG levels in shoot extracts were correlated with the amount of V. longisporum DNA in the hypocotyls. Although the concentration of SAG (but not SA) in xylem sap of infected plants gradually declined from 14 to 35 days post infection, SAG levels remained significantly higher than in uninfected plants during the whole experiment. Jasmonic acid (JA) and abscisic acid (ABA) levels in xylem sap were not affected by infection with V. longisporum. SA and SAG extend the list of phytohormones potentially transported from root to shoot with the transpiration stream. The physiological relevance of this transport and its contribution to the distribution of SA in plants remain to be elucidated. Springer Japan 2009-05-16 2009-09 /pmc/articles/PMC2776162/ /pubmed/19449088 http://dx.doi.org/10.1007/s10265-009-0237-5 Text en © The Botanical Society of Japan and Springer 2009
spellingShingle Regular Paper
Ratzinger, Astrid
Riediger, Nadine
von Tiedemann, Andreas
Karlovsky, Petr
Salicylic acid and salicylic acid glucoside in xylem sap of Brassica napus infected with Verticillium longisporum
title Salicylic acid and salicylic acid glucoside in xylem sap of Brassica napus infected with Verticillium longisporum
title_full Salicylic acid and salicylic acid glucoside in xylem sap of Brassica napus infected with Verticillium longisporum
title_fullStr Salicylic acid and salicylic acid glucoside in xylem sap of Brassica napus infected with Verticillium longisporum
title_full_unstemmed Salicylic acid and salicylic acid glucoside in xylem sap of Brassica napus infected with Verticillium longisporum
title_short Salicylic acid and salicylic acid glucoside in xylem sap of Brassica napus infected with Verticillium longisporum
title_sort salicylic acid and salicylic acid glucoside in xylem sap of brassica napus infected with verticillium longisporum
topic Regular Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2776162/
https://www.ncbi.nlm.nih.gov/pubmed/19449088
http://dx.doi.org/10.1007/s10265-009-0237-5
work_keys_str_mv AT ratzingerastrid salicylicacidandsalicylicacidglucosideinxylemsapofbrassicanapusinfectedwithverticilliumlongisporum
AT riedigernadine salicylicacidandsalicylicacidglucosideinxylemsapofbrassicanapusinfectedwithverticilliumlongisporum
AT vontiedemannandreas salicylicacidandsalicylicacidglucosideinxylemsapofbrassicanapusinfectedwithverticilliumlongisporum
AT karlovskypetr salicylicacidandsalicylicacidglucosideinxylemsapofbrassicanapusinfectedwithverticilliumlongisporum