Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2181044 | Fungal Genetics and Biology | 2011 | 8 Pages |
Abstract
Three key factors involved in successful plant disease development include the presence of a susceptible host, a virulent pathogen, and a disease-conducive environment. Our understanding of how environmental factors influence disease-conducive or disease-suppressive conditions, and how a pathogen advantageously capitalizes on them, is quite limited. Utilizing the model pathosystem Magnaporthe oryzae-Oryza sativa, we found a significant light-dependent disease suppression. Our genetic data suggest that the blue-light receptor MGWC-1 in M. oryzae is involved in light-dependent disease suppression during the dark-phase (disease-conducive light condition) immediately after pathogen-host contact. Sensing “darkness” is accomplished by MGWC-1, a blue-light receptor in M. oryzae. To explore the potential molecular mechanisms of light-dependent disease suppression we performed a genome-wide microarray experiment and identified several groups of gene families that are differentially regulated during the light-to-dark transition. Our genetic and molecular data provide insights into how a fungal pathogen utilizes ambient light signals for successful disease development.
Keywords
Related Topics
Life Sciences
Biochemistry, Genetics and Molecular Biology
Cell Biology
Authors
Soonok Kim, Pratibha Singh, Jaejin Park, Sohyun Park, Aaron Friedman, Tian Zheng, Yong-Hwan Lee, Kwangwon Lee,