Immunity to Clavibacter michiganensis subsp. sepedonicus: Screening of exotic Solanum species

Kriel, C. J.; Jansky, Shelley; Gudmestad, Neil C.; Ronis, D. H.

doi:10.1007/bf00027058

Cited by 8 publications

(5 citation statements)

References 19 publications

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“…Furthermore, the immunity to ring rot in tetraploid S. acaule 7‐8 was observed to be associated with temperature, and no immunity was expressed at 15°C. The influence of temperature has not been previously investigated, but Kriel et al . (1995a) speculated that some environmental interactions may explain the variation among the clones they tested.…”

Section: Discussionmentioning

confidence: 99%

“…A range of wild Solanum species was recently screened for potential immunity to infection by C. michiganensis ssp. sepedonicus (Kurowski & Manzer, 1992; Kriel et al ., 1995a). These tests found one wild potato species, Solanum acaule ssp.…”

Section: Introductionmentioning

confidence: 99%

“…These tests found one wild potato species, Solanum acaule ssp. acaule accession PI472655·8 (7‐8), which appeared to be immune to bacterial ring rot (Ishimaru et al ., 1994; Kriel et al ., 1995a,b).…”

Section: Introductionmentioning

confidence: 99%

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Infection of plant material derived from Solanum acaule with Clavibacter michiganensis ssp. sepedonicus: temperature as a determining factor in immunity of S. acaule to bacterial ring rot

et al. 2003

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The development of potato (Solanum tuberosum) cultivars immune (completely free of infective agents) to bacterial ring rot disease, caused by Clavibacter michiganensis ssp. sepedonicus, would be a significant step toward eradication of the disease. Earlier results suggested that the wild potato species Solanum acaule, acc. PI472655 (genotype 7‐8), was immune to C. michiganensis ssp. sepedonicus. The goal of the present study was to investigate the possibility of transferring this desirable trait to cultivated potato through interspecific somatic hybridization. Eight different somatic hybrids between S. acaule and S. tuberosum, with three different genome ratios, were tested for susceptibility to infection in the glasshouse using two C. michiganensis ssp. sepedonicus strains. All the somatic hybrids expressed symptoms of ring rot and were susceptible to infection as determined by IFAS (indirect immunofluorescent antibody staining) tests. The genome compositions of the hybrids influenced bacterial titres. Most of the hybrids with a higher proportion of the S. acaule genome contained lower numbers of C. michiganensis ssp. sepedonicus cells than hybrids with lower proportions of the S. acaule genome. In growth chamber tests, temperature was found to be a determining factor in the expression of immunity in the tetraploid S. acaule 7‐8 line. At 21°C, S. acaule 7‐8 was immune to infection by C. michiganensis ssp. sepedonicus, but at 15°C, plants supported large populations of the pathogen. However, none of the S. acaule plants expressed disease symptoms. Thus, S. acaule exhibits temperature‐dependent immunity to infection by C. michiganensis ssp. sepedonicus and should be considered tolerant rather than immune.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Infection of plant material derived from Solanum acaule with Clavibacter michiganensis ssp. sepedonicus: temperature as a determining factor in immunity of S. acaule to bacterial ring rot

et al. 2003

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“…Potato cultivars that are completely immune or resistant to ring rot are unavailable. However, immunity was detected in the disomic tetraploid 2EBN species Solanum acaule , suggesting the possibility of being transferred into the cultivated potato (Kriel et al, 1995a). S .…”

Section: Host Resistancementioning

confidence: 99%

Bacterial ring rot of potato caused by Clavibacter sepedonicus: A successful example of defeating the enemy under international regulations

Osdaghi

Wolf

Abachi

et al. 2022

Molecular Plant Pathology

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Background Bacterial ring rot of potato (Solanum tuberosum) caused by the gram‐positive coryneform bacterium Clavibacter sepedonicus is an important quarantine disease threatening the potato industry around the globe. Since its original description in 1906 in Germany, management of ring rot has been a major problem due to the seedborne nature (via seed tubers not true seeds) of the pathogen allowing the bacterium to be transmitted long distances via infected tubers. Disease symptoms On growing potato plants: interveinal chlorosis on leaflets leading to necrotic areas and systemic wilt. On infected tubers: vascular tissues become yellowish brown with a cheesy texture due to bacterial colonization and decay. Host range Potato is the main host of the pathogen, but natural infection also occurs on eggplant, tomato, and sugar beet. Taxonomic status of the pathogen Class: Actinobacteria; Order: Actinomycetales; Family: Microbacteriaceae; Genus: Clavibacter; Species: Clavibacter sepedonicus (Spieckermann and Kotthoff 1914) Li et al. 2018. Synonyms (nonpreferred scientific names) Aplanobacter sepedonicus; Bacterium sepedonicum; Corynebacterium sepedonicum; Corynebacterium michiganense pv. sepedonicum; Clavibacter michiganensis subsp. sepedonicus. Microbiological properties Gram‐positive, club‐shaped cells with creamy to yellowish‐cream colonies for which the optimal growth temperature is 20–23°C. Distribution Asia (China, Japan, Kazakhstan, Nepal, North Korea, Pakistan, South Korea, Uzbekistan, the Asian part of Russia), Europe (Belarus, Bulgaria, Czech Republic, Estonia, Finland, Georgia, Germany, Greece, Hungary, Latvia, Lithuania, Norway, Poland, Romania, European part of Russia, Slovakia, Spain, Sweden, Turkey, Ukraine), and North America (Canada, Mexico, USA). Phytosanitary categorization CORBSE: EPPO A2 list no. 51. EU; Annex designation I/A2.

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“…sepedonicus (Spieck & Kotth . ) Davis et al ., the ring rot causal organism, has been found in wild Solanum species, including S. acaule (Kriel et al ., 1995 ;Kurowski & Manzer, 1992) . Bonde et al .…”

Section: Introductionmentioning

confidence: 99%

Immunity to Clavibacter michiganensis subsp. sepedonicus: Inheritance of immunity in Solanum acaule

et al. 1995

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Immunity to Clavibacter michiganensis subsp. sepedonicus: Screening of exotic Solanum species

Cited by 8 publications

References 19 publications

Infection of plant material derived from Solanum acaule with Clavibacter michiganensis ssp. sepedonicus: temperature as a determining factor in immunity of S. acaule to bacterial ring rot

Infection of plant material derived from Solanum acaule with Clavibacter michiganensis ssp. sepedonicus: temperature as a determining factor in immunity of S. acaule to bacterial ring rot

Bacterial ring rot of potato caused by Clavibacter sepedonicus: A successful example of defeating the enemy under international regulations

Immunity to Clavibacter michiganensis subsp. sepedonicus: Inheritance of immunity in Solanum acaule

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