The core effector Cce1 is required for early infection of maize by Ustilago maydis

Seitner D, Uhse S, Gallei MC, Djamei A. 2018. The core effector Cce1 is required for early infection of maize by Ustilago maydis. Molecular Plant Pathology. 19(10), 2277–2287.

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Journal Article | Published | English

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Author
Seitner, Denise; Uhse, Simon; Gallei, MichelleIST Austria; Djamei, Armin
Department
Abstract
The biotrophic pathogen Ustilago maydis, the causative agent of corn smut disease, infects one of the most important crops worldwide – Zea mays. To successfully colonize its host, U. maydis secretes proteins, known as effectors, that suppress plant defense responses and facilitate the establishment of biotrophy. In this work, we describe the U. maydis effector protein Cce1. Cce1 is essential for virulence and is upregulated during infection. Through microscopic analysis and in vitro assays, we show that Cce1 is secreted from hyphae during filamentous growth of the fungus. Strikingly, Δcce1 mutants are blocked at early stages of infection and induce callose deposition as a plant defense response. Cce1 is highly conserved among smut fungi and the Ustilago bromivora ortholog complemented the virulence defect of the SG200Δcce1 deletion strain. These data indicate that Cce1 is a core effector with apoplastic localization that is essential for U. maydis to infect its host.
Publishing Year
Date Published
2018-10-01
Journal Title
Molecular Plant Pathology
Acknowledgement
the Austrian Science Fund (FWF): [P27429‐B22, P27818‐B22, I 3033‐B22], and the Austrian Academy of Science (OEAW).
Volume
19
Issue
10
Page
2277 - 2287
IST-REx-ID
104

Cite this

Seitner D, Uhse S, Gallei MC, Djamei A. The core effector Cce1 is required for early infection of maize by Ustilago maydis. Molecular Plant Pathology. 2018;19(10):2277-2287. doi:10.1111/mpp.12698
Seitner, D., Uhse, S., Gallei, M. C., & Djamei, A. (2018). The core effector Cce1 is required for early infection of maize by Ustilago maydis. Molecular Plant Pathology. Wiley. https://doi.org/10.1111/mpp.12698
Seitner, Denise, Simon Uhse, Michelle C Gallei, and Armin Djamei. “The Core Effector Cce1 Is Required for Early Infection of Maize by Ustilago Maydis.” Molecular Plant Pathology. Wiley, 2018. https://doi.org/10.1111/mpp.12698.
D. Seitner, S. Uhse, M. C. Gallei, and A. Djamei, “The core effector Cce1 is required for early infection of maize by Ustilago maydis,” Molecular Plant Pathology, vol. 19, no. 10. Wiley, pp. 2277–2287, 2018.
Seitner D, Uhse S, Gallei MC, Djamei A. 2018. The core effector Cce1 is required for early infection of maize by Ustilago maydis. Molecular Plant Pathology. 19(10), 2277–2287.
Seitner, Denise, et al. “The Core Effector Cce1 Is Required for Early Infection of Maize by Ustilago Maydis.” Molecular Plant Pathology, vol. 19, no. 10, Wiley, 2018, pp. 2277–87, doi:10.1111/mpp.12698.
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2018-12-18


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