然而，对果斑病菌致病的分子机理仍然知之甚少。

However, the pathogenic molecular mechanism of A. avenae subsp. citrulli is still poorly understood.

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目前，对瓜类细菌性果斑病菌的研究主要集中在病原菌鉴定、病原菌检测方法和技术、抗病品种的鉴定等方面。

At present, the research of bacterial fruit blotch focuses on pathogen identification, pathogen detection methods and techniques, the identification of disease-resistant varieties and so on.

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