Oxytetracycline and Streptomycin Resistance Genes in Xanthomonas arboricola pv. pruni, the Causal Agent of Bacterial Spot in Peach
Xanthomonas arboricola pv. pruni (Xap) causes bacterial spot, a major worldwide disease of
Prunus species. Very few chemical management options are available for this disease and
frequent applications of oxytetracycline (OTC) in the United States peach orchards have
raised concerns about resistance development. During 2017–2020, 430 Xap strains were
collected from ten peach orchards in South Carolina. Seven OTC-resistant (OTC R) Xap
strains were found in 2017 and 2020 from four orchards about 20–270 km apart …
Prunus species. Very few chemical management options are available for this disease and
frequent applications of oxytetracycline (OTC) in the United States peach orchards have
raised concerns about resistance development. During 2017–2020, 430 Xap strains were
collected from ten peach orchards in South Carolina. Seven OTC-resistant (OTC R) Xap
strains were found in 2017 and 2020 from four orchards about 20–270 km apart …
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