Research student profile: Yonghong Ge

Project title

Defense mechanisms of melon against Colletotrichum lagenarium and induces resistance with acibenzolar-S-methyl

Project overview

My project aims to survey the infection process of C. lagenarium on melon seedlings, investigate the mechanisms of the interaction between melon and C. lagenarium and the efficacy of ASM on control of C. lagenarium.

At the moment, research has shown the Colletotrichum fungus can penetrate leaves directly and does not require natural openings (e.g., stomates) or wounds. Previously, findings have demonstrated that in some phytopathogenic fungi, asexual spores called conidia germinate and develop a specific infection structure called an appressorium that enables fungal penetration of the host plant. Currently, other researchers have found ASM has the same spectrum of activity as biologically induced resistance, and has been shown effective in protecting several crop species and Arabidopsis from fungal, bacterial and viral pathogens.

To tackle this project my research involves the use of light microscopy, transmission electron microscopy.
To do this I have isolated C. lagenarium and screened resistance and susceptible melon cultivars in greenhouse.

From this I hope to demonstrate the infection process of C. lagenarium on melon seedlings and efficacy of ASM on control anthracnose of melons.

Background

I am an international student from China and completed my Master at the Gansu Agricultural University.

I have been granted an John Allwright Fellowship scholarship from Australian Centre for International Agricultural Research (ACIAR).

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