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| DOI: | 10.1111/j.1439-0434.2006.01092.x |
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| Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1111/j.1439-0434.2006.01092.x/full
Last checked: 03/27/2012
Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1111/j.1439-0434.2006.01092.x/pdf
Last checked: 03/27/2012
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| Publication Type:
| Refereed |
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| Author(s): | Hofgaard, I. S.;
Wanner, L. A.;
Hageskal, G.;
Henriksen, B.;
Klemsdal, S. S.;
Tronsmo, A. M. |
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| Author Affiliation: | Hofgaard, Henriksen and Klemsdal: Plant Health and Plant Protection Division, Bioforsk, Høgskoleveien, Norway; Wanner: Vegetable Lab, USDA-ARS, Beltsville, MD, USA; Hageskal and Tronsmo: Institute of Plant and Environmental Sciences, Agricultural University of Norway, Norway |
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| Title: | Isolates of Microdochium nivale and M. majus differentiated by pathogenicity on perennial ryegrass (Lolium perenne L.) and in vitro growth at low temperature |
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| Source: | Journal of Phytopathology. Vol. 154, No. 5, May 2006, p. 267-274. |
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| Publishing Information: | Berlin, Germany: Blackwell Wissenschafts-Verlag |
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| # of Pages: | 8 |
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| Related Web URL: | http://onlinelibrary.wiley.com/doi/10.1111/j.1439-0434.2006.01092.x/abstract
Last checked: 03/27/2012
Notes: Abstract only |
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| Keywords: | TIC Keywords: Cold chambers; Cold resistance; Disease evaluation; Disease profile; Disease severity; Growth rate; Lolium perenne; Methodology; Microdochium majus; Microdochium nivale; Microdochium patch; Pathogenicity; Pathovar; Plant recovery
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| Abstract/Contents: | "Pink snow mould is a serious disease on grasses and winter cereals in cold and temperate zones during winter. To better understand the basis for the variation in pathogenicity between different isolates of Microdochium nivale and M. majus and to simplify selection of highly pathogenic isolates to use when screening for resistance to pink snow mould in perennial ryegrass, we sought traits correlated with pathogenicity. Isolates of M. nivale were more pathogenic on perennial ryegrass than isolates of M. majus, as measured by survival and regrowth of perennial ryegrass after infection and incubation under simulated snow cover. Pathogenicity as measured by relative regrowth was highly correlated with fungal growth rate on potato dextrose agar (PDA) at 2°C . Measuring fungal growth on PDA therefore seems to be a relatively simple method of screening for potentially highly pathogenic isolates. In a study of a limited number of isolates, highly pathogenic isolates showed an earlier increase and a higher total specific activity of Β-glucosidase, a cell wall-degrading enzyme, compared with less pathogenic isolates. None of the M. majus isolates was highly pathogenic on perennial ryegrass. Our results indicate biological differences between M. nivale and M. majus and thus strengthen the recently published sequence-based evidence for the elevation of these former varieties to species status." |
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| Language: | English |
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| References: | 30 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hofgaard, I. S., L. A. Wanner, G. Hageskal, B. Henriksen, S. S. Klemsdal, and A. M. Tronsmo. 2006. Isolates of Microdochium nivale and M. majus differentiated by pathogenicity on perennial ryegrass (Lolium perenne L.) and in vitro growth at low temperature. J. Phytopathol. 154(5):p. 267-274. |
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| DOI: 10.1111/j.1439-0434.2006.01092.x |
| Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1439-0434.2006.01092.x/full
Last checked: 03/27/2012
Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1111/j.1439-0434.2006.01092.x/pdf
Last checked: 03/27/2012
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2219735 |
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