Sources of resistance for two differentially pathogenic strains of Xanthomonas fragariae in Fragaria genotypes

John L. Maas, Cristina Gouin-Behe, John S. Hartung, Stan C. Hokanson

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Bacterial angular leafspot disease (BALD) of strawberry (Fragaria sp. and F. xananassa Duchesne cultivars) has become increasingly destructive to strawberry fruit and plant production in Canada and the United States, as well as in other countries. The disease, caused by Xanthomonas fragariae Kennedy and King, was first documented in Minnesota in 1960, and has become of worldwide concern because of the economic impact of BALD in strawberry fruit and nursery-plant production and the lack of adequate disease control strategies. We tested 81 Fragaria genotypes, including representatives of F. xananassa, F. chiloensis (L.) Duchesne, F. virginiana Duchesne, and F. vesca L., for resistance to two pathogenic strains of X. fragariae. Two genotypes, a native F. virginiana from Minnesota and an F. virginiana x F. xananassa hybrid, were found to resist infection by both bacterial strains and may be potential sources of resistance to other strains of X. fragariae.

Original languageEnglish (US)
Pages (from-to)128-131
Number of pages4
JournalHortScience
Volume35
Issue number1
DOIs
StatePublished - Feb 2000

Keywords

  • Bacterial angular leafspot
  • Disease resistance
  • Strawberry

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