Research Project
Grant-in-Aid for Challenging Exploratory Research
The apple pathotype of Alternaria alternata produces host-specific AM-toxin and causes Alternaria blotch on apple cultivars sensitive to AM-toxin. We previously found that seven of 12 AM-toxin biosynthetic genes (AMT genes) were generated via horizontal gene transfer from Mycosphaerella species. In this study, we analyzed structure and function of the AMT homologs (MgAMT genes) of Mycosphaerella graminicola. Structural analysis of the genomic region including the MgAMT genes found that the 90-kb region encodes seven MgAMT genes and six additional genes possibly involved in secondary metabolism. RT-PCR analysis showed that genes in this region were expressed in wheat leaves inoculated with the pathogen conidia from the early stage of infection. We also observed toxicity of culture filtrates of the pathogen to wheat leaves. These results suggest that M. graminicola produces toxic substance similar in structure to AM-toxin.
All 2016 2015
All Journal Article (2 results) (of which Acknowledgement Compliant: 2 results, Peer Reviewed: 1 results) Presentation (5 results) (of which Int'l Joint Research: 1 results, Invited: 2 results)
植物感染生理談話会論文集：感染生理談話会の50年～古きを温ねて、新しきを知る～
Volume: 51 Pages: 57-69
Journal of General Plant Pathology
Volume: 82 Issue: 3 Pages: 121-131
10.1007/s10327-016-0656-9
