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Concentration- and time-dependent effects of isothiocyanates produced from Brassicaceae shoot tissues on the pea root rot pathogen Aphanomyces euteiches

Hossain, Md Shakhawat and Bergkvist, Göran and Berglund, Kerstin and Glinwood, Robert and Kabouw, Patrick and Mårtensson, Anna and Persson, Paula (2014). Concentration- and time-dependent effects of isothiocyanates produced from Brassicaceae shoot tissues on the pea root rot pathogen Aphanomyces euteiches. Journal of agricultural and food chemistry. 62:20, 4584-4591
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Abstract

Isothiocyanates (ITCs) hydrolyzed from glocosinolates (GSLs) in Brassicaceae tissue are toxic to soil organisms. In this study, the effect of aliphatic and aromatic ITCs from hydrated dy Brassicaceae shoot tissues on the mycelium and oospores of the pea root rot pathogen Aphanomyces euteiches was investigated. The profile and concentrations of GSLs in two test Brassicaceae species, Sinapis alba and Brassica juncea, and the ITCs from the dominant hydrolyzed parent GSLs were monitored. The concentrations of dominant ITCs and pathogen exposure time were evaluated in in vitro experiments. The greatest effect on the pathogen was observed from aliphatic ITCs hydrolyzed from B. juncea tissue, and the effect depended on the ITS concentration and exopsure time. ITCs were more effectively hydrolyzed from B. juncea GSLs than from S. alba GSLs; i.e., the ITC/GSL ratio was higher in B. juncea than in S. albatissue, giving a different release pattern. The release of phenylethyl isothiocyanate, which was common to both species, followed a pattern similar to that of the dominant ITC in each crop speices. This suggests that trait other than GSL content, e.g., plant cell structure, may affect the release of ITCs ans should therefore influence the choice of speices used for biofumigation purposes.

Authors/Creators:Hossain, Md Shakhawat and Bergkvist, Göran and Berglund, Kerstin and Glinwood, Robert and Kabouw, Patrick and Mårtensson, Anna and Persson, Paula
Title:Concentration- and time-dependent effects of isothiocyanates produced from Brassicaceae shoot tissues on the pea root rot pathogen Aphanomyces euteiches
Series/Journal:Journal of agricultural and food chemistry (1520-5118)
Year of publishing :2014
Depositing date:9 March 2015
Volume:62
Number:20
Page range:4584-4591
Number of Pages:8
Publisher:ACS Publications
ISSN:1520-5118
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Accepted version
Full Text Status:Public
Agris subject categories.:F Plant production > F01 Crop husbandry
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Agrovoc terms:brassicaceae, glucosinolates, aphanomyces euteiches
Keywords:brassicaceae, glucosinolate, isothiocyanate, aphanomyces euteiches, pea root rot
URN:NBN:urn:nbn:se:slu:epsilon-e-2485
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2485
Additional ID:
Type of IDID
Web of Science (WoS)000336417200013
DOI10.1021/jf501776c
ID Code:11880
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
S - Faculty of Forest Sciences
Department:(NL, NJ) > Dept. of Crop Production Ecology
(NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment
Deposited By: SLUpub Connector
Deposited On:23 Apr 2015 06:53
Metadata Last Modified:17 Feb 2016 08:40

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