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The longevity of resting sporangia of synchytrium endobioticum in soil


, : The longevity of resting sporangia of synchytrium endobioticum in soil. Bulletin OEPP 6(2): 107-109

Resting sporangia of the potato wart disease pathogen S. endobioticum which persist in soil can be extracted from soil by a wet-sieving and chloroform centrifugation method and counted. Soils from the sites of old wart outbreaks were checked for resting sporangia. Sampling procedures, patterns and errors are being assessed.

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Related references

Pratt, M.A., 1976: The longevity of resting sporangia of Synchytrium endobioticum (Schilb.) Perc. in soil. Resting sporangia of the potato wart disease pathogen Synchytrium endobioticum which persist in soil can be extracted from soil by a wet-sieving and chloroform centrifugation method and counted. Soils from the sites of old wart outbreaks have been...

Nelson, G.A.; Olsen, O.A., 1964: Methods for estimating numbers of resting sporangia of Synchytrium endobioticum in soil. In the 1st method, resting sporangia of S. endobioticum in artificially infested soil were floated off in dibromoethane (sp. gr. 2.2). In a modification of another technique, moistened soil was mixed with 2 different oils and shaken with water, th...

Pratt, M.A., 1976: A wet-sieving and flotation technique for the detection of resting sporangia of Synchytrium endobioticum in soil. In the method (described) for extracting resting spores of S. endobioticum, the pathogen of potato wart disease, from the soil, fractions between 71 and 25 mu m were held on sieves of aperture size 40 and 25 mu m. Resting sporangia in these fracti...

Selaries, P., 1947: The search for resting sporangia of Synchytrium endobioticum (Schilb.) Perc. in an infected soil. The author carried out preliminary experiments at Clermont-Ferrand to devise a method for isolating resting sporangia of potato wart (Synchytrium endobioticum) from soil and testing their viability. Tests of the method used by Schander and Richter...

Stefan, K.; Lubiewska, E.; Fracek, H., 1999: Viability of resting sporangia of the fungus Synchytrium endobioticum (Schilb.) Perc. in soil. Occurrence of viable sporangia of S. endobioticum in soil samples taken from 294 old outbreak sites of wart disease, detected until 1980 in Poland and on 2 fields infested with S. endobioticum was investigated. Both infested fields served for 19 a...

Malec, K., 1979: Viability of resting sporangia of Synchytrium endobioticum (Schilb.) Perc. in the soil under natural conditions. The incidence of S. endobioticum on susceptible potato cvs. grown on plots with barley, rye, oat and maize crops was investigated during 1971-78. The potato crop was excluded from cultivation on these plots except for the experimental plants. Infe...

Malec, K., 1979: Viability of resting sporangia of the fungus Synchytrium endobioticum (Schilb.) Perc. in soil under natural conditions. Biuletyn 3) 87-95

Laidlaw, W.M.R., 1985: A method for the detection of the resting sporangia of potato wart disease (Synchytrium endobioticum) in the soil of old outbreak sites. Soils are sampled and resting spores extracted by wet-sieving and chloroform flotation. A procedure for isolating individual spores for germination tests or further study is also described. The method has been used successfully to recover spores f...

Lange L.; Olson L.W., 1981: Germination and parasitization of the resting sporangia of synchytrium endobioticum. The cytoplasmic organization of the long-lived, thick walled resting stage of the sporangium of S. endobioticum (Schilb.) Perc. is described. The cytoplasm of the resting sporangium contains a large number of closely packed lipid bodies and irregu...

Lange, L.; Olson, L.W., 1981: Germination and parasitation of the resting sporangia of Synchytrium endobioticum. Ultrastructural studies on the cytoplasmic organization of resting spores of the potato wart pathogen are described. The earlier postulated zoospore primordia were shown to be lipid and osmiophilic bodies connected by fine channels in the cytoplas...