Streptomyces scabies sp. nov., nom. rev.

Lambert, D. H.; Loria, Rosemary

doi:10.1099/00207713-39-4-387

Cited by 225 publications

(185 citation statements)

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“…S. acidiscabies, which has previously been described in the northeastern USA, was found rarely; a single isolate from northern Maine and several isolates from a single location in New Brunswick were the only examples. This observation corresponds to reports that S. acidiscabies is not persistent in soil (Lambert and Loria 1989b;Lambert et al 2006). S. turgidiscabies was also very infrequent; S. acidiscabies and S. turgidiscabies may be ephemeral causes of CS in North America.…”

Section: Discussionmentioning

confidence: 60%

A Patchwork of Streptomyces Species Isolated from Potato Common Scab Lesions in North America

Wanner

2009

Am. J. Pot Res

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To determine distribution and prevalence of Streptomyces species associated with common scab in North America, more than 1,400 isolates were made from scabby potato tubers. Samples were obtained from locations across the continent, and from multiple sites in close geographic proximity. Most potentially pathogenic isolates belonged to four species previously associated with common scab, S. scabies, S. europaeiscabiei, S. stelliscabiei, and S. sp. IdahoX. Additionally, small numbers of potentially pathogenic isolates were identified as S. acidiscabies, S. turgidiscabies and six additional ribotypes. S. europaeiscabiei was most common in the west and S. scabies predominated in the middle and eastern Midwest. Beyond this geographic trend, species distribution was patchy. A single species often predominated in a field while neighboring fields had different species. Local and regional variation was seen when isolates were genotyped for repetitive sequence element patterns, reflecting the conserved or core genome, and genes characteristic of the Streptomyces pathogenicity island, reflecting flexible components of the Streptomyces genome. This is the largest survey to date of the distribution of common scab-causing species, and will be a resource for population biology studies and for tracing the evolutionary history and spread of common scabassociated Streptomyces.Resumen Para determinar la distribución y prevalencia de especies de Streptomyces asociadas con la sarna común en Norteamérica, se hicieron más de 1,400 aislamientos de tubérculos de papa con sarna. Las muestras fueron obtenidas de localidades de todo el continente y de múltiples lugares geográficamente próximos. Los aislamientos potencialmente más patogénicos fueron de cuatro especies previamente asociadas con sarna común, S. scabies, S. europaeiscabiei, S. stellicabiei y S. sp. IdahoX. Adicionalmente, un número pequeño de aislamientos potencialmente patogénicos fueron identificados como S. acidiscabies, S. turgidiscabies y seis ribotipos adicionales. S. europaeiscabiei fue el más común en el oeste y S. scabies predominó en el centro y este del Medio Oeste. Más allá de esta tendencia geográfica, la distribución de especies fue en parches. Una sola especie a menudo predominó en un campo mientras en los campos vecinos se encontraron diferentes especies. Se vieron variaciones locales y regionales cuando a los aislamientos se les determinó el genotipo para patrones de elementos con secuencias repetitivas que reflejan el genoma conservado o central, y genes característicos de la isla de patogenicidad de Streptomyces, reflejando componentes flexibles del genoma de Streptomyces. Este es la pesquisa más extensa a la fecha sobre la distribución de las especies que causan sarna común, y será un recurso para estudios de biología poblacional y para determinar la historia evolutiva y diseminación de Streptomyces asociado a la sarna común.Keywords Streptomyces scabies . Population genetics . Pathogenicity island Abbreviations CSCommon scab PAI Pathogenicity islan...

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Section: Discussionmentioning

confidence: 60%

A Patchwork of Streptomyces Species Isolated from Potato Common Scab Lesions in North America

Wanner

2009

Am. J. Pot Res

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“…Potato scab is a disease of major economic importance in most potato-producing areas of the world (Lambert and Loria, 1989). The genes that encode the thaxtomin biosynthetic pathway appear to lie on a pathogenicity island that was transmitted to Streptomyces species, resulting in the emergence of new pathogenic species in agricultural production systems (Healy et al, 1999(Healy et al, , 2000Bukhalid et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

An Arabidopsis Mutant Resistant to Thaxtomin A, a Cellulose Synthesis Inhibitor fromStreptomycesSpecies[W]

et al. 2003

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Thaxtomin A is a phytotoxin produced by Streptomyces scabies and other Streptomyces species, the causative agents of common scab disease in potato and other taproot crops. At nanomolar concentrations, thaxtomin causes dramatic cell swelling, reduced seedling growth, and inhibition of cellulose synthesis in Arabidopsis. We identified a mutant of Arabidopsis, designated txr1 , that exhibits increased resistance to thaxtomin as a result of a decrease in the rate of toxin uptake. The TXR1 gene was identified by map-based cloning and found to encode a novel, small protein with no apparent motifs or organelle-targeting signals. The protein, which has homologs in all fully sequenced eukaryotic genomes, is expressed in all tissues and during all developmental stages analyzed. Microarray transcript profiling of some 14,300 genes revealed two stomatin-like genes that were expressed differentially in the txr1 mutant and the wild type. We propose that TXR1 is a regulator of a transport mechanism.

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“…Common scab of potato (Solanum tuberosum L.) is a bacterial disease causing necrotic lesions and is frequently caused by Streptomyces scabies (22). S. scabies attacks actively growing tubers by producing thaxtomins, which are phytotoxins that inhibit the biosynthesis of cellulose (32), resulting in cell death.…”

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confidence: 99%

Long-Term Induction of Defense Gene Expression in Potato by Pseudomonas sp. LBUM223 and Streptomyces scabies

Arseneault¹,

Pieterse²,

Gérin-Ouellet³

et al. 2014

Phytopathology®

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Streptomyces scabies is a causal agent of common scab of potato, which generates necrotic tuber lesions. We have previously demonstrated that inoculation of potato plants with phenazine-1-carboxylic acid (PCA)-producing Pseudomonas sp. LBUM223 could significantly reduce common scab symptoms. In the present study, we investigated whether LBUM223 or an isogenic phzC-mutant not producing PCA could elicit an induced systemic resistance response in potato. The expression of eight defense-related genes (salicylic acid [SA]-related ChtA, PR-1b, PR-2, and PR-5; and jasmonic acid and ethylene-related LOX, PIN2, PAL-2, and ERF3) was quantified using newly developed TaqMan reversetranscription quantitative polymerase chain reaction assays in 5-and 10-week-old potted potato plants. Although only wild-type LBUM223 was capable of significantly reducing common scab symptoms, the presence of both LBUM223 and its PCA-deficient mutant were equally able to upregulate the expression of LOX and PR-5. The presence of S. scabies overexpressed all SA-related genes. This indicates that (i) upregulation of potato defense-related genes by LBUM223 is unlikely to contribute to common scab's control and (ii) LBUM223's capacity to produce PCA is not involved in this upregulation. These results suggest that a direct interaction occurring between S. scabies and PCA-producing LBUM223 is more likely involved in controlling common scab development.

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Streptomyces scabies sp. nov., nom. rev.

Cited by 225 publications

References 22 publications

A Patchwork of Streptomyces Species Isolated from Potato Common Scab Lesions in North America

A Patchwork of Streptomyces Species Isolated from Potato Common Scab Lesions in North America

An Arabidopsis Mutant Resistant to Thaxtomin A, a Cellulose Synthesis Inhibitor fromStreptomycesSpecies[W]

Long-Term Induction of Defense Gene Expression in Potato by Pseudomonas sp. LBUM223 and Streptomyces scabies

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