Summary of Study ST002406

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR001548. The data can be accessed directly via it's Project DOI: 10.21228/M8M42M This work is supported by NIH grant, U2C- DK119886.

See: https://www.metabolomicsworkbench.org/about/howtocite.php

This study contains a large results data set and is not available in the mwTab file. It is only available for download via FTP as data file(s) here.

Study ID	ST002406
Study Title	Silicon ameliorates clubroot responses in canola (Brassica napus): A “multi-omics”-based investigation into possible mechanisms
Study Type	Timecourse experiment
Study Summary	Clubroot disease, caused by Plasmodiophora brassicae Woronin results in severe yield losses in Brassica crops, including canola. Silicon (Si) mitigates several stresses and enhances plant resistance to phytopathogens. We investigated the effects of Si on clubroot disease symptoms in canola at two concentrations of Si (Si1.0 and Si0.5). In addition, the effects of Si on P. brassicae-induced gene expression, endogenous levels of phytohormones and metabolites were also studied. Si application reduced clubroot symptoms and improved plant growth under greenhouse conditions. Pathogen-induced transcript-level changes were affected by Si treatment to P. brassicae with genes related to antioxidant activity, phytohormone biosynthesis and signalling, nitrogen metabolism and secondary metabolism exhibiting differential expression. Endogenous levels of several phytohormones (e.g., auxin, cytokinin, salicylic acid and abscisic acid), amino acids and secondary metabolites (e.g., glucosinolates) were affected by Si. This is the first report that Si ameliorates clubroot symptoms and its possible mode of action.
Institute	Trent University
Department	Biology
Laboratory	Emery Lab
Last Name	Kisiala
First Name	Anna
Address	1600 West Bank Drive, Trent University, Peterborough, ON, K9L 0G2, Canada
Email	annakisiala@trentu.ca
Phone	7057481011
Submit Date	2022-12-12
Raw Data Available	Yes
Raw Data File Type(s)	mzXML
Analysis Type Detail	LC-MS
Release Date	2023-01-04
Release Version	1

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Treatment:

Treatment ID:	TR002507
Treatment Summary:	Sodium silicate (Na2SiO3, Mol. Wt: 122.06 g/L), obtained from Sigma-Aldrich (St. Louis, US), was mixed with 100 g Sunshine Professional Growing Mix (Sun Gro Horticulture, Seba Beach, Canada) and the following mixtures (treatments) were produced: 0.0 g Si (control), 0.1 g Si (Si:soil in 1:1000, wt/wt), 0.25 g (Si:soil in 1:400, wt/wt), 0.5 g (Si:soil in 1:200, wt/wt), 0.75 g (Si:soil in 3:400, wt/wt) and 1.0 g (Si:soil in 1:100, wt/wt). These treatments, hereafter, reported as Si0.0 or PC, Si0.1, Si0.25, Si0.5, Si0.75 and Si1.0, respectively. After mixing thoroughly, the pH of the soil mix was determined prior to seeding. A clubroot susceptible spring canola (Brassica napus L.) cultivar Hi-Q, developed at the University of Alberta, was used in this study. The plants were grown under greenhouse conditions (22/19°C and 16/8h photoperiod) on the above-mentioned six soil media (treatments) containing varying concentration of Si. A total of 30 plants, from three replications of each treatment (i.e. 10 plants per replication) were used. A single spore suspension of P. brassicae pathotype 3, classified as pathotype 3H (P3H) under the Canadian Clubroot Differential (CCD) set, was prepared by homogenizing the clubroot galls, and used to inoculate the seedlings following previously described procedures.

Treatment ID:

TR002507

Treatment Summary:

Sodium silicate (Na2SiO3, Mol. Wt: 122.06 g/L), obtained from Sigma-Aldrich (St. Louis, US), was mixed with 100 g Sunshine Professional Growing Mix (Sun Gro Horticulture, Seba Beach, Canada) and the following mixtures (treatments) were produced: 0.0 g Si (control), 0.1 g Si (Si:soil in 1:1000, wt/wt), 0.25 g (Si:soil in 1:400, wt/wt), 0.5 g (Si:soil in 1:200, wt/wt), 0.75 g (Si:soil in 3:400, wt/wt) and 1.0 g (Si:soil in 1:100, wt/wt). These treatments, hereafter, reported as Si0.0 or PC, Si0.1, Si0.25, Si0.5, Si0.75 and Si1.0, respectively. After mixing thoroughly, the pH of the soil mix was determined prior to seeding. A clubroot susceptible spring canola (Brassica napus L.) cultivar Hi-Q, developed at the University of Alberta, was used in this study. The plants were grown under greenhouse conditions (22/19°C and 16/8h photoperiod) on the above-mentioned six soil media (treatments) containing varying concentration of Si. A total of 30 plants, from three replications of each treatment (i.e. 10 plants per replication) were used. A single spore suspension of P. brassicae pathotype 3, classified as pathotype 3H (P3H) under the Canadian Clubroot Differential (CCD) set, was prepared by homogenizing the clubroot galls, and used to inoculate the seedlings following previously described procedures.