IX.— The life-history and cytology of synchytrium endobioticum (schilb.), perc., the cause of wart disease in potato

Curtis, K. M.

doi:10.1098/rstb.1921.0009

Cited by 79 publications

(37 citation statements)

References 11 publications

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“…Winter sporangia disintegrate and release the zoosporangia into the substrate when germinating (Lange and Olson 1981). The zoosporangia are only able to survive for a very short time (Curtis 1921) and cannot be detected after composting. However, the fact that experiment 3 with the highest temperatures during the composting process did not result in a significant reduction in the median values of the number of winter sporangia is somehow unexpected.…”

Section: Discussionmentioning

confidence: 98%

“…Hampson et al (1994) presume that the robust structure is responsible for the persistence of the winter sporangia of S. endobioticum. The spores are enclosed by a solid wall consisting of an exospore (Curtis 1921), a chitin containing mesospore (Bal et al 1981) and an endospore (Hampson et al 1994). Hampson et al (1996) examined winter sporangia of S. endobioticum for evidence of melanin or melaninlike compounds and concluded that the pigmentation in these spores is caused by an allomelanin.…”

Section: Discussionmentioning

confidence: 99%

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Effects of sanitation processes on survival of Synchytrium endobioticum and Globodera rostochiensis

et al. 2012

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The two quarantine pests Synchytrium endobioticum, the causal agent of potato wart disease and Globodera rostochiensis, the yellow potato cyst nematode are currently present in Germany. Winter sporangia of Synchytrium endobioticum and cysts of Globodera rostochiensis can be spread with waste from potato processing industries, if infected tubers are processed. The German Biowaste Ordinance prescribes sanitation of organic waste before it can be used on arable land as fertilizer or filling material. Sanitation parameters prescribed by the German Biowaste Ordinance include composting for 7 days at 65°C or 14 days at 55°C or pasteurisation for 60 min at 70°C. The effect of composting and pasteurisation processes on winter sporangia of Synchytrium endobioticum and cysts of Globodera rostochiensis was tested with varying timetemperature relations. Cysts of Globodera rostochiensis were killed by composting for 7 days at 50-55°C and by pasteurisation for 30 min at 70°C. In contrast, viable winter sporangia of Synchytrium endobioticum could be extracted from sample material after composting for 70 days at 30-45°C, composting for 21 days at 50-55°C and after composting for 12 days at 60-65°C. Likewise viable winter sporangia could be extracted after pasteurisation for 90 min at 70°C and heating in a water bath at 80°C and in a dry oven at 90°C for 8 h. The parameters prescribed in the German Biowaste Ordinance are sufficient to kill cysts of Globodera rostochiensis but not sufficient to kill winter sporangia of Synchytrium endobioticum in organic waste.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Effects of sanitation processes on survival of Synchytrium endobioticum and Globodera rostochiensis

et al. 2012

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“…Characteristically throughout its history the disease has not been a significant problem for rural potato production, while home and allotment gardens have suffered from the disease in industrial (Hilli 1932, Moore 1957) and mining districts (Sanders 1919). After its introduction into a field the disease is extremely difficult to eradicate because the fungus produces resting spores able to survive in the soil without susceptible hosts for 10-30 years (Curtis 1921, Schaffnit and Meyer-Hermann 1930, Pratt 1976. The appearance of wart in potato production leads to severe limitations for potato cultivation and expensive eradicative efforts for the farmer.…”

Section: Consequences Of Wart For Potato Productionmentioning

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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“…Kole 1965. Sharma & Cammack 1976; distilled water (Percival 1910.Curtis 1921. Kohier 1924,Nelson& Olsen 1967, Sharma & Cammack 1976; and rain water (Curtis 1921.…”

mentioning

confidence: 99%

Responses of resting sporangia ofSynchytrium endobioticumto in vitro germination treatments

Hampson

1980

Canadian Journal of Plant Pathology

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IX.— The life-history and cytology of synchytrium endobioticum (schilb.), perc., the cause of wart disease in potato

Cited by 79 publications

References 11 publications

Effects of sanitation processes on survival of Synchytrium endobioticum and Globodera rostochiensis

Effects of sanitation processes on survival of Synchytrium endobioticum and Globodera rostochiensis

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

Responses of resting sporangia ofSynchytrium endobioticumto in vitro germination treatments

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