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Article

Peptide-Based Identification of Phytophthora Isolates and Phytophthora Detection in Planta

1
Phytophthora Research Centre, Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, CZ-61300 Brno, Czech Republic
2
Potato Research Institute, Ltd., CZ-58001 Havlíčkův Brod, Czech Republic
3
Phytophthora Research Centre, Department of Forest Protection and Wildlife Management, Faculty of Forestry and Wood Technology, Mendel University in Brno, CZ-61300 Brno, Czech Republic
4
CEITEC–Central European Institute of Technology, Mendel University in Brno, CZ-61300 Brno, Czech Republic
5
Institute of Biophysics of the Czech Academy of Sciences, CZ-61265 Brno, Czech Republic
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2020, 21(24), 9463; https://doi.org/10.3390/ijms21249463
Received: 19 November 2020 / Revised: 9 December 2020 / Accepted: 9 December 2020 / Published: 12 December 2020
(This article belongs to the Special Issue Plant Health and Food Security)
Phytophthora is arguably one of the most damaging genera of plant pathogens. This pathogen is well suited to transmission via the international plant trade, and globalization has been promoting its spread since the 19th century. Early detection is essential for reducing its economic and ecological impact. Here, a shotgun proteomics approach was utilized for Phytophthora analysis. The collection of 37 Phytophthora isolates representing 12 different species was screened for species-specific peptide patterns. Next, Phytophthora proteins were detected in planta, employing model plants Solanum tuberosum and Hordeum vulgare. Although the evolutionarily conserved sequences represented more than 10% of the host proteome and limited the pathogen detection, the comparison between qPCR and protein data highlighted more than 300 protein markers, which correlated positively with the amount of P. infestans DNA. Finally, the analysis of P. palmivora response in barley revealed significant alterations in plant metabolism. These changes included enzymes of cell wall metabolism, ROS production, and proteins involved in trafficking. The observed root-specific attenuation in stress–response mechanisms, including the biosynthesis of jasmonates, ethylene and polyamines, and an accumulation of serotonin, provided the first insight into molecular mechanisms behind this particular biotic interaction. View Full-Text
Keywords: Phytophthora; proteomics; P. palmivora; P. infestans; Solanum tuberosum; Hordeum vulgare; leaf inoculation Phytophthora; proteomics; P. palmivora; P. infestans; Solanum tuberosum; Hordeum vulgare; leaf inoculation
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MDPI and ACS Style

Berka, M.; Greplová, M.; Saiz-Fernández, I.; Novák, J.; Luklová, M.; Zelená, P.; Tomšovský, M.; Brzobohatý, B.; Černý, M. Peptide-Based Identification of Phytophthora Isolates and Phytophthora Detection in Planta. Int. J. Mol. Sci. 2020, 21, 9463. https://doi.org/10.3390/ijms21249463

AMA Style

Berka M, Greplová M, Saiz-Fernández I, Novák J, Luklová M, Zelená P, Tomšovský M, Brzobohatý B, Černý M. Peptide-Based Identification of Phytophthora Isolates and Phytophthora Detection in Planta. International Journal of Molecular Sciences. 2020; 21(24):9463. https://doi.org/10.3390/ijms21249463

Chicago/Turabian Style

Berka, Miroslav, Marie Greplová, Iñigo Saiz-Fernández, Jan Novák, Markéta Luklová, Pavla Zelená, Michal Tomšovský, Břetislav Brzobohatý, and Martin Černý. 2020. "Peptide-Based Identification of Phytophthora Isolates and Phytophthora Detection in Planta" International Journal of Molecular Sciences 21, no. 24: 9463. https://doi.org/10.3390/ijms21249463

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