The transcription factor CsBzip10 controls vegetative growth, asexual development, appressorium formation and pathogenicity in the Rosa chinensis anthracnose fungus Colletotrichum siamense

  • R. F. Liu
  • He LiEmail author
Original Paper


Transcription factors play crucial roles in development and virulence in a variety of pathogens. Here, we identified and characterized the transcription factor CsBzip10 in Colletotrichum siamense. CsBZIP10 encodes a 316-amino acid protein with a conserved bZIP-ATF2 domain, which is an ortholog of MoBzip10 in the rice blast fungus Magnaporthe oryzae. Targeted deletion of CsBZIP10 revealed that vegetative growth, conidiation and appressorium formation of the ΔCsbzip10 mutant were significantly reduced. The ΔCsbzip10 mutant had decreased sensitivity to the cell wall disturbing agent SDS and oxidative stress (H2O2), and increased sensitivity to osmotic stress (NaCl and KCl). Virulence and infectious hyphal growth of the ΔCsbzip10 mutant was remarkably decreased on Rosa chinensis leaves. CsBzip10 is a key transcription factor, that plays pleiotropic roles in the evelopment and pathogenicity of the R. chinensis anthracnose fungus C. siamense.


Transcription factor Vegetative growth Asexual development Appressorium formation Pathogenicity 



This work was supported by grants from National Natural Science Foundation of China (Grant number: 31570641).

Supplementary material

13313_2019_663_MOESM1_ESM.docx (422 kb)
Fig. S1 (DOCX 421 kb)
13313_2019_663_MOESM2_ESM.docx (14 kb)
Table S1 (DOCX 14 kb)


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Copyright information

© Australasian Plant Pathology Society Inc. 2019

Authors and Affiliations

  1. 1.Central South University of Forestry and TechnologyChangshaChina
  2. 2.Beijing Key Laboratory of Ornamental Plants, Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture and College of Landscape ArchitectureBeijing Forestry UniversityBeijingChina

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