Resistance of potato cultivars to Synchytrium endobioticum in field and laboratory tests, risk of secondary infection, and implications for phytosanitary regulations

R.P. Baayen; H. Bonthuis; J.C.M. Withagen; J.G.N. Wander; J.L. Lamers; J.P. Meffert; G. Cochius; G.C.M. Van Leeuwen; H. Hendriks; B.G.J. Heerink; P.H.J.F. Van Den Boogert; P. Van De Griend; R.A. Bosch

doi:10.1111/j.1365-2338.2005.00775.x

Resistance of potato cultivars to Synchytrium endobioticum in field and laboratory tests, risk of secondary infection, and implications for phytosanitary regulations

R.P. Baayen^*, H. Bonthuis, J.C.M. Withagen, J.G.N. Wander, J.L. Lamers, J.P. Meffert, G. Cochius, G.C.M. Van Leeuwen, H. Hendriks, B.G.J. Heerink, P.H.J.F. Van Den Boogert, P. Van De Griend, R.A. Bosch

^*Corresponding author for this work

OT Team Schimmels Onkr. en Plagen

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

Laboratory (Spieckermann) tests, pot tests and field tests provided concordant evidence for the partial nature of resistance of potatoes to pathotypes 1 (D1) and 6 (O1) of Synchytrium endobioticum. Susceptible potato cultivars produced large warts (> 16 mm in diameter) in Spieckermann tests and had low field resistance levels (1-6). Field-resistant cultivars (levels 7-9) produced small warts or no warts at all in Spieckermann and field tests. In pot tests, at low inoculum levels (1 sporangium per 25 g soil) susceptible cultivars still developed warts, whereas field-resistant ones did not develop any warts below 25 sporangia per g soil. Above 35 sporangia per g soil, 100% disease incidence was observed in susceptible cultivars but only minimal wart development in field-resistant ones. Tests with continuous cultivation of potato cultivars in infected soil during three consecutive years showed that field-resistant cultivars will not support build-up of inoculum in soil. It is concluded that field-resistant cultivars do not create a risk of secondary infection, the criterion given for resistance in EU Directive 69/464/EC.

Original language	English
Pages (from-to)	9-23
Number of pages	15
Journal	EPPO Bulletin
Volume	35
Issue number	1
DOIs	https://doi.org/10.1111/j.1365-2338.2005.00775.x
Publication status	Published - Apr 2005

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Baayen, R. P., Bonthuis, H., Withagen, J. C. M., Wander, J. G. N., Lamers, J. L., Meffert, J. P., Cochius, G., Van Leeuwen, G. C. M., Hendriks, H., Heerink, B. G. J., Van Den Boogert, P. H. J. F., Van De Griend, P., & Bosch, R. A. (2005). Resistance of potato cultivars to Synchytrium endobioticum in field and laboratory tests, risk of secondary infection, and implications for phytosanitary regulations. EPPO Bulletin, 35(1), 9-23. https://doi.org/10.1111/j.1365-2338.2005.00775.x

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title = "Resistance of potato cultivars to Synchytrium endobioticum in field and laboratory tests, risk of secondary infection, and implications for phytosanitary regulations",

abstract = "Laboratory (Spieckermann) tests, pot tests and field tests provided concordant evidence for the partial nature of resistance of potatoes to pathotypes 1 (D1) and 6 (O1) of Synchytrium endobioticum. Susceptible potato cultivars produced large warts (> 16 mm in diameter) in Spieckermann tests and had low field resistance levels (1-6). Field-resistant cultivars (levels 7-9) produced small warts or no warts at all in Spieckermann and field tests. In pot tests, at low inoculum levels (1 sporangium per 25 g soil) susceptible cultivars still developed warts, whereas field-resistant ones did not develop any warts below 25 sporangia per g soil. Above 35 sporangia per g soil, 100% disease incidence was observed in susceptible cultivars but only minimal wart development in field-resistant ones. Tests with continuous cultivation of potato cultivars in infected soil during three consecutive years showed that field-resistant cultivars will not support build-up of inoculum in soil. It is concluded that field-resistant cultivars do not create a risk of secondary infection, the criterion given for resistance in EU Directive 69/464/EC.",

author = "R.P. Baayen and H. Bonthuis and J.C.M. Withagen and J.G.N. Wander and J.L. Lamers and J.P. Meffert and G. Cochius and {Van Leeuwen}, G.C.M. and H. Hendriks and B.G.J. Heerink and {Van Den Boogert}, P.H.J.F. and {Van De Griend}, P. and R.A. Bosch",

year = "2005",

month = apr,

doi = "10.1111/j.1365-2338.2005.00775.x",

language = "English",

volume = "35",

pages = "9--23",

journal = "EPPO Bulletin",

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Baayen, RP, Bonthuis, H, Withagen, JCM, Wander, JGN, Lamers, JL, Meffert, JP, Cochius, G, Van Leeuwen, GCM, Hendriks, H, Heerink, BGJ, Van Den Boogert, PHJF, Van De Griend, P & Bosch, RA 2005, 'Resistance of potato cultivars to Synchytrium endobioticum in field and laboratory tests, risk of secondary infection, and implications for phytosanitary regulations', EPPO Bulletin, vol. 35, no. 1, pp. 9-23. https://doi.org/10.1111/j.1365-2338.2005.00775.x

TY - JOUR

T1 - Resistance of potato cultivars to Synchytrium endobioticum in field and laboratory tests, risk of secondary infection, and implications for phytosanitary regulations

AU - Baayen, R.P.

AU - Bonthuis, H.

AU - Withagen, J.C.M.

AU - Wander, J.G.N.

AU - Lamers, J.L.

AU - Meffert, J.P.

AU - Cochius, G.

AU - Van Leeuwen, G.C.M.

AU - Hendriks, H.

AU - Heerink, B.G.J.

AU - Van Den Boogert, P.H.J.F.

AU - Van De Griend, P.

AU - Bosch, R.A.

PY - 2005/4

Y1 - 2005/4

N2 - Laboratory (Spieckermann) tests, pot tests and field tests provided concordant evidence for the partial nature of resistance of potatoes to pathotypes 1 (D1) and 6 (O1) of Synchytrium endobioticum. Susceptible potato cultivars produced large warts (> 16 mm in diameter) in Spieckermann tests and had low field resistance levels (1-6). Field-resistant cultivars (levels 7-9) produced small warts or no warts at all in Spieckermann and field tests. In pot tests, at low inoculum levels (1 sporangium per 25 g soil) susceptible cultivars still developed warts, whereas field-resistant ones did not develop any warts below 25 sporangia per g soil. Above 35 sporangia per g soil, 100% disease incidence was observed in susceptible cultivars but only minimal wart development in field-resistant ones. Tests with continuous cultivation of potato cultivars in infected soil during three consecutive years showed that field-resistant cultivars will not support build-up of inoculum in soil. It is concluded that field-resistant cultivars do not create a risk of secondary infection, the criterion given for resistance in EU Directive 69/464/EC.

AB - Laboratory (Spieckermann) tests, pot tests and field tests provided concordant evidence for the partial nature of resistance of potatoes to pathotypes 1 (D1) and 6 (O1) of Synchytrium endobioticum. Susceptible potato cultivars produced large warts (> 16 mm in diameter) in Spieckermann tests and had low field resistance levels (1-6). Field-resistant cultivars (levels 7-9) produced small warts or no warts at all in Spieckermann and field tests. In pot tests, at low inoculum levels (1 sporangium per 25 g soil) susceptible cultivars still developed warts, whereas field-resistant ones did not develop any warts below 25 sporangia per g soil. Above 35 sporangia per g soil, 100% disease incidence was observed in susceptible cultivars but only minimal wart development in field-resistant ones. Tests with continuous cultivation of potato cultivars in infected soil during three consecutive years showed that field-resistant cultivars will not support build-up of inoculum in soil. It is concluded that field-resistant cultivars do not create a risk of secondary infection, the criterion given for resistance in EU Directive 69/464/EC.

U2 - 10.1111/j.1365-2338.2005.00775.x

DO - 10.1111/j.1365-2338.2005.00775.x

M3 - Article

AN - SCOPUS:20444380764

SN - 0250-8052

VL - 35

SP - 9

EP - 23

JO - EPPO Bulletin

JF - EPPO Bulletin

IS - 1

ER -

Resistance of potato cultivars to Synchytrium endobioticum in field and laboratory tests, risk of secondary infection, and implications for phytosanitary regulations

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