Mechanism of Necrosis Caused by Stagonospora nodorum in Wheat Explained
August 20, 2014| |
The fungus Stagonospora nodorum causes necrosis in wheat by secreting effector protein SnTox3 which interacts with proteins set by dominant susceptibility genes. Scientists, led by Peter S. Solomon from The Australian National University, have discovered the mechanism of this effector through a susceptible wheat cultivar.
SnTox3 strongly induced classical host defense pathways. The ability of wheat leaves to photosynthesize was also lost. SnTox3 induced enzymes involved in primary metabolism and compounds related to plant defense. The protein re-programmed metabolism and brought out a host cell death response to continue the pathogen's necrotrophic infection cycle.
For more details about the research, visit: http://biomedcentral.com/1471-2229/14/215
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