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Borza, T., Peters, R., Wu, Y., Schofield, A., Rand, J., Ganga, Z., Al-Mughrabi, K., Coffin, R. and Wang-Pruski, G. (2017) Phosphite Uptake and Distribution in Potato Tubers Following Foliar and Postharvest Applications of Phosphite-Based Fungicides for Late Blight Control. Annals of Applied Biology, 170, 127-139.
https://doi.org/10.1111/aab.12322

has been cited by the following article:

• TITLE: Metabolomics Profile of Potato Tubers after Phosphite Treatment

  AUTHORS: Xingxi Gao, Steven Locke, Junzeng Zhang, Jyoti Joshi, Gefu Wang-Pruski

  KEYWORDS: Potato, Metabolomics, GC-MS, Phosphite, Phytophthora infestans

  JOURNAL NAME: American Journal of Plant Sciences, Vol.9 No.4, March 28, 2018

  ABSTRACT: Phosphite (Phi)-based fungicides are used to control the oomycete Phytophthora infestans which causes late blight disease, the most devastating disease in potatoes. In order to examine the effects of Phi-based fungicides on potato tubers through foliar or post-harvest application, a metabolite profiling approach based on gas chromatography coupled to mass spectrometry (GC-MS) has been established. A total of 132 metabolites were detected using the GC-MS approach. Among these, 34 metabolites were identified after normalization and annotated with a compound name with standard mass spectral library. Metabolomic analysis of Phi-treated plants showed significant differences in the levels of many metabolites especially amino acids. Multivariate statistical approaches, such as principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA), were employed to explore the relationships between metabolites to detect group differences. A good discrimination between the control and the Phi-treated plants was observed, which demonstrated that significant changes in the metabolite profile have been caused by the two different Phi applications (foliar or post-harvest). This finding suggests that the alteration of specific metabolite levels by accumulation of Phi can lead to resistance against the pathogen.