Bacterial wilt resistance in kidney beans

Abstract

Bacterial wilt, caused by Curtobacterium flaccumfaciens pv. flaccumfaciens, is a widespread problem of dry beans on the Canadian prairies and is listed as a quarantine disease by some countries. The development of resistant cultivars is one of the most effective methods for controlling bacterial wilt. Fourteen kidney bean cultivars were screened against the three variants (yellow, orange and purple) of C. flaccumfaciens pv. flaccumfaciens. High levels of resistance to the three variants were observed in the light red kidney bean cultivars AC Litekid, Chinook 2000 and Redkanner as well as the dark red kidney bean cultivars Cabernet and Red Hawk. These five resistant kidney bean cultivars should be useful sources of bacterial wilt resistance in dry bean breeding programs. Neither of the two white kidney bean cultivars tested consistently showed high levels of resistance to all of the color variants of the bacterial wilt pathogen. Key words: Phaseolus vulgaris, kidney bean, bacterial wilt, Curtobacterium flaccumfaciens pv. faccumfaciens, yellow variant, orange variant, purple variant, resistance

First Report of Curtobacterium flaccumfaciens pv. flaccumfaciens Causing Cowpea Bacterial Wilt in Iran

“…; Conner et al. ; Urrea and Harveson ). Nowadays, the disease is under quarantine regulations in most Mediterranean and Middle Eastern countries (EPPO ; Sammer and Reiher ).…”

Evidence for Ecological Flexibility in the Cosmopolitan Genus Curtobacterium

“…flaccumfaciens , is the causal agent of bacterial wilt in dry beans worldwide with reports on five continents (Wood and Easdown, 1990; Harveson et al, 2006; EPPO, 2011; Soares et al, 2013; Osdaghi et al, 2015a). The disease harbors a high degree of genetic and phenotypic diversity (Hedges, 1926; Conner et al, 2008) even within a single host (Agarkova et al, 2012). …”

Occurrence of a New Orange Variant of Curtobacterium flaccumfaciens pv. flaccumfaciens, Causing Common Bean Wilt in Iran

“…; Conner et al. ; Urrea and Harveson ). Currently, the disease is under quarantine regulations in most Mediterranean and Middle Eastern countries (EPPO ; Sammer and Reiher ).…”

“…Different variants of Cff have been identified on the basis of colony colour of the strains (Hedges ; Conner et al. ; Harveson and Vidaver ). The yellow and orange variants are the most common types in many of the areas in which the disease has been reported (Hedges ; Schuster and Christiansen ; Conner et al.…”

“…The yellow and orange variants are the most common types in many of the areas in which the disease has been reported (Hedges ; Schuster and Christiansen ; Conner et al. ). The purple variant is rare and has only been reported in western Nebraska (Schuster et al.…”