Management of common scab of potato in the field using biopesticides, fungicides, soil additives, or soil fumigants

Al-Mughrabi, Khalil I.; Vikram, A.; Poirier, René; Jayasuriya, Kithsiri E.; Moreau, Gilles

doi:10.1080/09583157.2015.1079809

Cited by 30 publications

(12 citation statements)

References 16 publications

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“…Common scab management and control in potato production areas have become a top priority for producers [ 1 ]. Soil pH management and crop rotation can reduce scab density, but they do not suppress the disease [ 2 , 9 ].…”

Section: Discussionmentioning

confidence: 99%

“…Soil pH management and crop rotation can reduce scab density, but they do not suppress the disease [ 2 , 9 ]. A viable and sustainable scab management strategy targets the development of scab-resistant potato cultivars [ 19 ] as well as the identification of common scab’s antagonists as biocontrol agents [ 1 , 14 , 51 ]. In the current study, a comparative RNA transcriptome sequencing validated by qPCR and induced gene signaling studies were conducted using two potato cultivars different by their response to scab for the purpose of unraveling genes and pathways differentially activated in this pathosystem.…”

Section: Discussionmentioning

confidence: 99%

“…Common scab ( Streptomyces scabies) disease in potato has become a widespread issue in the major potato production areas in Canada, leading to increased economic losses [ 1 ]. Eighty two percent (82%) of the farmers surveyed in Canada in 2003 were found to be experiencing common scab problems on their farm, with an estimated economic loss of 15 to 17 million dollars [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

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Comparative transcriptome expression analysis in susceptible and resistant potato (Solanum tuberosum) cultivars to common scab (Streptomyces scabies) revealed immune priming responses in the incompatible interaction

et al. 2020

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Common scab disease in potato has become a widespread issue in major potato production areas, leading to increasing economic losses. Varietal resistance is seen as a viable and long-term scab management strategy. However, the genes and mechanisms of varietal resistance are unknown. In the current study, a comparative RNA transcriptome sequencing and differential gene signaling and priming sensitization studies were conducted in two potato cultivars that differ by their response to common scab ( Streptomyces scabies) , for unraveling the genes and pathways potentially involved in resistance within this pathosystem. We report on a consistent and contrasted gene expression pattern from 1,064 annotated genes differentiating a resistant (Hindenburg) and a susceptible (Green Mountain) cultivars, and identified a set of 273 co-regulated differentially expressed genes in 34 pathways that more likely reflect the genetic differences of the cultivars and metabolic mechanisms involved in the scab pathogenesis and resistance. The data suggest that comparative transcriptomic phenotyping can be used to predict scab lesion phenotype in breeding lines using mature potato tuber. The study also showed that the resistant cultivar, Hindenburg, has developed and maintained a capacity to sense and prime itself for persistent response to scab disease over time, and suggests an immune priming reaction as a mechanism for induced-resistance in scab resistant potato cultivars. The set of genes identified, described, and discussed in the study paves the foundation for detailed characterizations towards tailoring and designing procedures for targeted gene knockout through gene editing and phenotypic evaluation.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparative transcriptome expression analysis in susceptible and resistant potato (Solanum tuberosum) cultivars to common scab (Streptomyces scabies) revealed immune priming responses in the incompatible interaction

et al. 2020

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“…Despite its food security significance and great market value, the potato crop is susceptible to many ailments caused by bacteria, viruses, nematodes and fungi [ 6 , 7 , 8 ]. Among bacterial diseases, the common scab is the most devastating disease of the potato, which causes economic losses to the potato-growing countries of the world [ 9 , 10 ]. This disease is caused by Streptomyces scabies , which belongs to the phylum actinobacteria, which is one of the biggest taxonomic units among the 18 major lineages of bacteria and its divergence from other bacterial species is so ancient that it is currently not possible to identify their most closely related group [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Streptomyces scabies Causing Potato Scab by Various Detection Techniques, Its Pathogenicity and Determination of Host-Disease Resistance in Potato Germplasm

et al. 2020

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Streptomyces scabies is a Gram-positive bacterial pathogen that causes common scab disease to several crops, particularly in the potato. It is a soil borne pathogen, a very devastating scab pathogen and difficult to manage in the field. Streptomyces has several species that cause common scab such as S. scabiei, S. acidiscabies, S. europaeiscabiei, S. luridiscabiei, S. niveiscabiei, S. puniciscabiei, S. reticuliscabiei, S. stelliscabiei, S. turgidiscabies, S. ipomoeae. Common scab disease harmfully affects potato economic and market value due to the presence of black spots on the tuber. Owing to its genetic diversity and pathogenicity, the determination of pathogen presence in potato fields is still challenging. In this study, S. scabies genetic diversity was measured by surveying five potato-growing areas of Pakistan during the growing season 2019. A total of 50 Streptomyces isolates, including S. scabies, S. acidiscabies, S. griseoflavus were isolated and identified based on morphologic, biochemical and molecular analysis. Virulent confirmation assays confirmed ten virulent strains of Streptomyces spp. On the potato cultivars Cardinal and Santee. Among the Streptomyces species, S. scabies showed the highest scab index, followed by S. acidiscabies and S. griseoflavus by exhibiting the scab-like lesions on potato tubers. Ten potato cultivars were screened against these virulent isolates of Streptomyces. The Faisalabad white variety showed the highest scab index followed By Cardinal, Tourag, Kuroda, Santee, Lady Rosetta, Asterix, Diamant, Faisalabad red and Sadaf. Moreover, genetic diversity and pathogenicity of Streptomyces spp. on potato tubers were also likely diverse in different geographical regions and also potato cultivars. This study represents a contribution to understanding the local interaction between potatoes and Streptomyces spp. in Pakistan. It will aid in supporting a solution for the management of this pathogen around the world.

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“…However, they may deteriorate the quality of tubers and effects the market value. For instance, potato industry in Canada reported to experience $1.2 million loss every year due to this disease (Al-Mughrabi et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

A Potential Biocontrol Agent Streptomycesviolaceusniger AC12AB for Managing Potato Common Scab

et al. 2019

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Potato common scab (PCS) is an economically important disease worldwide. In this study we demonstrated the possible role of Streptomyces violaceusniger AC12AB in controlling PCS. Isolates of Streptomyces scabies were obtained from CS infected tubers collected from Maine United States, which were confirmed by morphological and molecular analysis including 16S rRNA sequencing and RFLP analysis of amplified 16S-23S ITS. Pathogenicity assays related genes including txtAB, nec1, and tomA were also identified in all S. scabies strains through PCR reaction. An antagonistic bacterial strain was isolated from soil in Punjab and identified as S. violaceusniger AC12AB based on 16S rRNA sequencing analysis. Methanolic extract of S. violaceusniger AC12AB contained azalomycin RS-22A which was confirmed by 1H and 13C-NMR, 1H/1H-COSY, HMBC and HMQC techniques. S. violaceusniger AC12AB exhibited plant growth promotion attributes including Indole-3-acetic acid production with 17 μgmL-1 titers, siderophores production, nitrogen fixation and phosphates solubilization potential. When tubers were inoculated with S. violaceusniger AC12AB, significant (P < 0.05) PCS disease reduction up to 90% was observed in greenhouse and field trials, respectively. Likewise, S. violaceusniger AC12AB significantly (P < 0.05) increased potato crop up to 26.8% in field trial. Therefore, plant growth promoting S. violaceusniger AC12AB could provide a dual benefit by decreasing PCS disease severity and increasing potato yield as an effective and inexpensive alternative strategy to manage this disease.

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Management of common scab of potato in the field using biopesticides, fungicides, soil additives, or soil fumigants

Cited by 30 publications

References 16 publications

Comparative transcriptome expression analysis in susceptible and resistant potato (Solanum tuberosum) cultivars to common scab (Streptomyces scabies) revealed immune priming responses in the incompatible interaction

Comparative transcriptome expression analysis in susceptible and resistant potato (Solanum tuberosum) cultivars to common scab (Streptomyces scabies) revealed immune priming responses in the incompatible interaction

Investigation of Streptomyces scabies Causing Potato Scab by Various Detection Techniques, Its Pathogenicity and Determination of Host-Disease Resistance in Potato Germplasm

A Potential Biocontrol Agent Streptomycesviolaceusniger AC12AB for Managing Potato Common Scab

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