Summary of project PR000877
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 PR000877. The data can be accessed directly via it's Project DOI: 10.21228/M8B382 This work is supported by NIH grant, U2C- DK119886.
See: https://www.metabolomicsworkbench.org/about/howtocite.php
| Project ID: | PR000877 |
| Project DOI: | doi: 10.21228/M8B382 |
| Project Title: | Metabolomics and Hormonomics to Crack the Code of Filbert Growth |
| Project Type: | Plant Untargeted MS Metabolomics |
| Project Summary: | Introduction: Plants respond to changes in their environments through hormonal activation of a physiological cascade that redirects metabolic resources and growth. In filberts (Corylus sp.), chelated iron promotes the growth of new shoots but the mechanism(s) are not understood. Objectives: To use untargeted metabolomics and hormonomics approaches to generate novel hypotheses for the morphoregulatory role of ferric ethylenediamine-N,N'-di-(ortho-hydroxyphenyl) acetic acid (Fe-EDDHA) in filbert shoot organogenesis in vitro. Methods: Data were generated using previously optimized standardized untargeted metabolomics protocols with time of flight mass spectrometry. Multivariate statistical tools (principal component and partial least squares discriminant analysis) did not detect significant differences. Discovery tools Significance Analysis of Microarrays (SAM), multiple linear regression analysis, Bayesian analysis, logical algorithms, machine learning, synthetic biotransformations, targeted hormonomics, and online resources including MetaboAnalyst were used. Results: Starch/sucrose metabolism and shikimate pathway metabolites were increased. Dose dependent decreases were found in polyphenol metabolism, specifically ellagic acid and its methylated derivative 3,4,3'-tri-O-methylellagic acid. Hormonomics analysis revealed significant differences in phytohormones and their conjugates. FeEDDHA treatment reduced indole-3-acetic acid, abscisic acid, salicylic acid, jasmonic acid conjugates (JA-Trp, JA-Ile, OH-JA) and dihydrozeatinglucoside in regenerating explants. Serotonin (5HT) was decreased in FeEDDHA-treated regenerating tissues while the related metabolite melatonin was increased. Eight phenolic conjugates of 5HT and eight catabolites were affected by FeEDDHA indicating that metabolism to sequester, deactivate and metabolize 5HT was induced by Fe(III). Tryptophan was metabolized through kynurenine but not anthranilate. Conclusion: Seven novel hypotheses were generated to guide future studies to understand the regulatory control(s) of shoot organogenesis. |
| Institute: | University of British Columbia |
| Department: | Chemistry |
| Laboratory: | PlantSMART |
| Last Name: | Murch |
| First Name: | Susan |
| Address: | 3247 University Way |
| Email: | susan.murch@ubc.ca |
| Phone: | 250-807-9566 |
| Contributors: | Lauren A E Erland, Christina E Turi, Praveen K Saxena, Susan J Murch |
Summary of all studies in project PR000877
| Study ID | Study Title | Species | Institute | Analysis(* : Contains Untargted data) | Release Date | Version | Samples | Download(* : Contains raw data) |
|---|---|---|---|---|---|---|---|---|
| ST001296 | Metabolomics and Hormonomics to Crack the Code of Filbert Growth | Corylus avellana;Corylus americana | University of British Columbia | MS* | 2020-06-20 | 1 | 12 | Uploaded data (1.9M)* |
