Biological Control of Citrus Canker | New Approach for Disease Control
2019
Caicedo Cepeda, Juan Carlos | Villamizar Cancelado, Sonia | Snjezana Topolovec-Pintaric
Citrus canker is a disease that affects the major types of commercial citrus crops. Xanthomonas citri subsp. citri, the etiological agent, reaches to mesophyll tissue through the stomata and afterward induces cell hyperplasia. Disease management has been based on both tree eradication and copper spray treatment. Overuse of copper for control of bacterial citrus canker has led to the development and prevalence of copper-resistant strains of Xcc. Several genera of both soil- and plant-associated bacteria became powerful tools in sustainable agriculture for control of Xcc and reduction of citrus canker disease severity. In this chapter we present bacteria able to interfere with quorum sensing as well to display antibacterial activity against Xcc by production of secondary metabolite. These bacteria may represent a highly valuable tool in the process of biological control and offer an alternative to the traditional copper treatment currently used for the treatment of citrus canker disease, with significant environmental, economic, and health implications worldwide.
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