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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2001.91.6.S129#page=9
Last checked: 10/16/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Kunkel, B. A.;
Grewal, P. S. |
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| Author Affiliation: | The Ohio State University |
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| Title: | Tritrophic interactions between perennial ryegrass, black cutworms, and an entomopathogenic nematode |
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| Meeting Info.: | 2001 APS/MSA/SON Joint Meeting, Salt Lake City, Utah: August 25-29, 2001 |
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| Source: | Phytopathology. Vol. 91, No. 6, June Supplement 2001, p. S137. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Interactions; Lolium perenne; Agrotis ipsilon; Entomopathogenic nematodes; Endophytic fungi; Alkaloids; Steinernema carpocapsae; Resistance to parasites
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| Abstract/Contents: | "Some grasses form symbioses with Neotyphodium fungi. These endophytic fungi enhance plant growth, drought tolerance, and resistance against herbivory. Many insect species are susceptible to the alkaloids produced by plants containing the endophytes. However, black cutworm, Agrotis ipsilon, appears to be an exception. As some insects can transform plant alkaloids into novel compounds, we hypothesize that the black cutworm may use them to increase its defense against an entomopathogenic nematode. Cutworms, fed on endophytic or non-endophytic perennial ryegrass (Lolium perenne) grass for 1 week, were exposed to the entomopathogenic nematode, Steinernema carpocapsae. Mortality was recorded at 16 h post exposure and every 4 h thereafter for 48 h. Our results support the hypothesis that cutworms feeding on plants with high (>90%) incidence of Neotyphodium endophytes are less susceptible to entomopathogenic nematodes than plants with no or low incidence of endophyte (0-60%). This acquired tolerance/resistance may be due to alteration of endophyte alkaloids by the developing larvae to defensive compounds." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kunkel, B. A., and P. S. Grewal. 2001. Tritrophic interactions between perennial ryegrass, black cutworms, and an entomopathogenic nematode. Phytopathology. 91(6):p. S137. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2001.91.6.S129#page=9
Last checked: 10/16/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 599 .P48 |
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