Investigating the specialized metabolism of the novel plant pathogen Streptomyces sp. 11-1-2 ...

• Main Author: Díaz Cruz, Gustavo Adolfo
• Format: Text
• Language: English
• Published: Memorial University of Newfoundland 2024
• Subjects: Newfoundland
• Online Access: https://dx.doi.org/10.48336/sh5d-pw81; https://research.library.mun.ca/16316/

Streptomyces is a genus of Gram-positive bacteria that are found in a wide range of environments and are capable of producing numerous specialized metabolites with diverse bioactivities. A small group of Streptomyces species is capable of causing plant diseases on a variety of crops. Notably, Streptomyces scabiei is one of the main causal agents of common scab disease, which affects multiple plants but is most relevant in potato production, as it significantly diminishes profits due to unmarketable tubers. To cause the disease, S. scabiei and most CS-causing pathogens use a specialized metabolite called thaxtomin A as the main pathogenicity factor. Recently, several reports have shown the isolation of plant-pathogenic Streptomyces strains that do not produce thaxtomin A, but instead produce other phytotoxic specialized metabolites. One example is Streptomyces sp. 11-1-2 a strain isolated in 2011 from a CS-symptomatic potato tuber in Newfoundland, Canada. This strain was shown to be highly pathogenic against ...