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European Journal of Plant Pathology

, Volume 153, Issue 2, pp 417–427 | Cite as

The cereal phytopathogen Sporisorium reilianum is able to infect the non-natural host Arabidopsis thaliana

  • Domingo Martínez-SotoEmail author
  • John Martin Velez-Haro
  • Claudia Geraldine León-Ramírez
  • Roberto Ruiz-Medrano
  • Beatriz Xoconostle-Cázares
  • José Ruiz-HerreraEmail author
Article
  • 68 Downloads

Abstract

We analyzed the infection of the model plant Arabidopsis thaliana by the basidiomycete phytopathogen of cereals Sporisorium reilianum in order to use it as an experimental pathosystem model. Sterile plantlets of A. thaliana were grown on MS solid medium, and inoculated with haploid strains or mixtures of sexually compatible S. reilianum strains. Inoculated plants showed growth of filaments within their tissues, size reduction, a drastic increase in the formation of lateral roots, and a high production of plant pigments. Although symptoms were more severe in plants infected with sexually compatible strains, no spores were formed by the fungus. Among the pigments accumulated in the stunted plants we identified the anthocyanins cyanidin, cyanidin 3-glucoside, malvidin and pelargonidin. Congruently, the anthocyanin biosynthesis genes: chalcone synthase (CHS, AT5G13930) and dihydroflavonol reductase (DFR, AT5G42800) were over-expressed. The three genes encoding flavin monooxygenases: YUCCA7 (YUC7, AT2G33230), YUCCA8 (YUC8, AT4G28720), and YUCCA9 (YUC9, AT1G04180), and the transcription factor Jagged Lateral Organs (JLO, AT4G00220), all of them involved in the biosynthesis of auxins specific for root development, were also positively regulated. These data provide evidence that both haploid and the mixture of sexually compatible strains of S. reilianum can infect plants of A. thaliana; evidencing the usefulness of this pathosystem for the study of the genetic and metabolic reactions involved in S. reilianum virulence.

Keywords

Sporisorium reillianum Arabidopsis thaliana Alternative host Pathosystem model Virulence 

Notes

Acknowledgments

This work was partially supported by Consejo Nacional de Ciencia y Tecnología (Conacyt), México. Thanks are given to Prof. Jan Schirawski, Institute of Applied Microbiology, RWTH Aachen University, Germany, for making available the S. reilianum strains SRZ2 and SRZ1. We also thank Mayela F. Salazar-Chávez from the Irapuato Unit of Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav), Leandro A. Núñez-Muñoz and Brenda J. Vargas-Hernández from Zacatenco Unit of Cinvestav; Renata Cruz-Calderon from Instituto Tecnológico Superior de Los Reyes, TSLR; and Drs. José I. Reyes-Olalde, and Stefan de Folter from the Unit of Advance Genomics, Cinvestav, for their assistance respectively in strain maintenance, preparation of some reagents, statistical analyses, and microscopic analyses.

Compliance with ethical standards

The authors declare that they are aware of the ethical responsibilities required by the European Journal of Plant Pathology for the submission of manuscripts. Also, they declare no conflict of interests and that they were informed of the submission of the manuscript.

Supplementary material

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10658_2018_1567_MOESM2_ESM.docx (14 kb)
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Copyright information

© Koninklijke Nederlandse Planteziektenkundige Vereniging 2018

Authors and Affiliations

  • Domingo Martínez-Soto
    • 1
    • 2
    Email author
  • John Martin Velez-Haro
    • 2
    • 3
  • Claudia Geraldine León-Ramírez
    • 2
  • Roberto Ruiz-Medrano
    • 4
  • Beatriz Xoconostle-Cázares
    • 4
  • José Ruiz-Herrera
    • 2
    Email author
  1. 1.Ingeniería en Innovación Agrícola SustentableInstituto Tecnológico Superior de Los ReyesLos ReyesMexico
  2. 2.Departamento de Ingeniería Genética, Unidad Irapuato, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalIrapuatoMexico
  3. 3.Departamento de Ingeniería BioquímicaInstituto Tecnológico de CelayaCelayaMexico
  4. 4.Departamento de Biotecnología y BioingeneríaCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalCDMXMexico

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