Stress and Stimulus Modifications of Disease Severity in the Wart Disease of Potato

Hampson, Michael C.

doi:10.1094/phyto-75-817

Cited by 12 publications

(17 citation statements)

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“…The fungus does not attack potato roots. Individual tubers can be entirely transformed into warts unsuitable for human consumption or the processing industry (Hampson and Coombes 1985). Often wart symptoms on tubers can remain rather weak resembling those of common scab or powdery scab (Fig.…”

Section: Potato Wart -Disease Almost Eradicated From Finlandmentioning

confidence: 99%

Examples of alien pathogens in Finnish potato production - their introduction, establishment and consequences

Hannukkala¹

2008

AFSci

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Most pathogens on potato have been imported into Finland via contaminated seed more than hundred years ago. The history of migration and the consequences for potato production of potato wart, blackleg and soft rot, Potato mop-top virus (PMTV) and its vector powdery scab are reviewed as examples of economically important and biologically different potato pathogens. Potato wart spread alarmingly during 1920-1960. Plant quarantine acts and the use of resistant cultivars were successful in eradicating the disease. The pathogens causing blackleg and soft rot increased rapidly in 1960-1970. Development of seed certification schemes after the end of the 1970s decreased disease incidence and made the disease insignificant other than for seed potato production. Introduction of new strains of blackleg bacteria in 2003 caused the disease again to become a considerable threat to potato production. PMTV was imported into Finland in the 1970s where it spread rapidly, especially in starch potato production. Currently it is common in all potato production except that of seed potato. The disease cannot be eradicated but contamination of clean fields can be prevented. New diseases can spread to Finland in future but population changes of existing pathogens have recently caused more problems than species completely new to Finland.;

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Section: Potato Wart -Disease Almost Eradicated From Finlandmentioning

confidence: 99%

Examples of alien pathogens in Finnish potato production - their introduction, establishment and consequences

Hannukkala¹

2008

AFSci

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“…Potato wart disease, at present the most severe quarantine disease affecting cultivated potato production worldwide, is caused by the soilborne obligate biotrophic fungus Synchytrium endobioticum (Schilb.) Percival ( Curtis, 1921 ; Hampson and Coombes, 1985 ). The potato host cell greatly enlarges and surrounding cells divide irregularly, resulting in wart-like malformations and a nutrient sink ( Hampson and Coombes, 1985 ).…”

Section: Introductionmentioning

confidence: 99%

“…Percival ( Curtis, 1921 ; Hampson and Coombes, 1985 ). The potato host cell greatly enlarges and surrounding cells divide irregularly, resulting in wart-like malformations and a nutrient sink ( Hampson and Coombes, 1985 ). The tumor-like tissue of the wart progressively increases in size at the expense of the tubers, leading to unmarketable tubers and complete yield losses ( Hampson, 1993 ).…”

Section: Introductionmentioning

confidence: 99%

Integrative Analysis of Genes Involved in the Global Response to Potato Wart Formation

Ling

Yuan

et al. 2022

Front. Plant Sci.

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Synchytrium endobioticum, the causal agent of potato wart disease, poses a major threat to commercial potato production. Understanding the roles of transcriptionally regulated genes following pathogen infection is necessary for understanding the system-level host response to pathogen. Although some understanding of defense mechanisms against S. endobioticum infection has been gained for incompatible interactions, the genes and signaling pathways involved in the compatible interaction remain unclear. Based on the collection of wart diseased tubers of a susceptible cultivar, we performed phenotypic and dual RNA-Seq analyses of wart lesions in seven stages of disease progression. We totally detected 5,052 differentially expressed genes (DEGs) by comparing the different stages of infection to uninfected controls. The tendency toward differential gene expression was active rather than suppressed under attack by the pathogen. The number of DEGs step-up along with the development of the disease and the first, third and seventh of the disease stages showed substantially increase of DEGs in comparison of the previous stage. The important functional groups identified via Gene ontology (GO) and KEGG enrichment were those responsible for plant-pathogen interaction, fatty acid elongation and phenylpropanoid biosynthesis. Gene coexpression networks, composed of 17 distinct gene modules that contained between 25 and 813 genes, revealed high interconnectivity of the induced response and led to the identification of a number of hub genes enriched at different stages of infection. These results provide a comprehensive perspective on the global response of potato to S. endobioticum infection and identify a potential transcriptional regulatory network underlying this susceptible response, which contribute to a better understanding of the potato–S. endobioticum pathosystem.

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“…Perc. Upon infection, S. endobioticum induces cell divisions in the host proliferating into tumor-like tissues, which provide a nutrient sink (Hampson and Coombes 1985 ). The tumors progressively increase in size at the expense of tubers, resulting in yield losses in the range of 50–100 % (Hampson 1993 ; Melnik 1998 ).…”

Section: Introductionmentioning

confidence: 99%

Managing potato wart: a review of present research status and future perspective

2014

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Key messageIdentification of resistance genes to potato wart disease caused bySynchytrium endobioticumis the key for developing diagnostic markers for breeding resistant cultivars. We present an overview on the current knowledge of this host-pathogen system and molecular advances while highlighting future research focus.AbstractPotato wart is a quarantined disease of cultivated potato (Solanum tuberosum L.) caused by the obligate biotrophic, soil-borne fungus Synchytrium endobioticum (Schilb.) Perc. Since its discovery by Schilberszky in 1896, the management of wart disease was enabled by research efforts focusing on understanding and classifying the causative agent, its mode of infection, pathogenesis, geographical distribution, detection and chemical control, on developing screening methods for host resistance and on genetic analyses, which led to the development of resistant cultivars. These early successes are currently challenged by new S. endobioticum pathotypes evolving and the increased risk of dissemination by potato tuber trade. New research efforts are therefore required to ensure continuation of effective and sustainable management of the potato wart disease. Advances in molecular biology and genomic tools offer potential for innovations. This review presents an overview on what we know about this complex host-pathogen interaction, highlights recent molecular work and embarks on an outlook towards future research directions.

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Stress and Stimulus Modifications of Disease Severity in the Wart Disease of Potato

Cited by 12 publications

References 0 publications

Examples of alien pathogens in Finnish potato production - their introduction, establishment and consequences

Examples of alien pathogens in Finnish potato production - their introduction, establishment and consequences

Integrative Analysis of Genes Involved in the Global Response to Potato Wart Formation

Managing potato wart: a review of present research status and future perspective

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