Probing the role of cyclic di-GMP signaling systems in disease using Chinese radish

An, Shi Qi, Tang, Ji Liang and Dow, J. Maxwell (2017) Probing the role of cyclic di-GMP signaling systems in disease using Chinese radish. In, Sauer, K. (ed.) c-di-GMP Signaling. (Methods in Molecular Biology, 1657) New York, NY. Humana New York, pp. 205-212. (doi:10.1007/978-1-4939-7240-1_16).

Abstract

The determination of the genome sequences of pathogenic bacteria has facilitated functional analyses that aim to understand the molecular basis of virulence. In particular, genome sequence information of the pathogen Xanthomonas campestris pathovar campestris has allowed researchers to identify and functionally analyze the role of intracellular signaling involving cyclic di-GMP in black rot disease of crucifers. Here, we describe leaf clipping and spraying methods for testing the virulence of wild type and derived mutants of X. campestris in Chinese radish. These methods address different facets of the disease cycle, which requires the ability to survive epiphytically before entry into the plant and growth and systemic spread within the xylem.

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