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Web URL(s): | http://usgatero.msu.edu/v09/n11.pdf Last checked: 06/01/2010 Requires: PDF Reader |
Publication Type:
| Report |
Author(s): | Heng-Moss, Tiffany;
Gulsen, Osman;
Eichkoff, Thomas;
Shearman, Robert;
Baxendale, Frederick |
Author Affiliation: | Heng-Moss: Associate Professor, Department of Entomology, University of Nebraska, Lincoln, NE; Gulsen: Department of Horticulture, Erciyes University, Kayseri, Turkey; Eichkoff: Monsanto Company, Monmouth, IL: Shearman: Professor, Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE; Baxendale: Professor, Department of Entomology, University of Nebraska, Lincoln, NE |
Title: | The role of peroxidases in the defense response of warm-season turfgrasses to chinch bugs |
Source: | USGA Turfgrass and Environmental Research Online. Vol. 9, No. 11, June 1 2010, p. [1-10]. |
Publishing Information: | Far Hills, NJ: United States Golf Association, Green Section |
# of Pages: | 12 |
Keywords: | TIC Keywords: Blissus occiduus; Bouteloua dactyloides; Peroxidase; Pest resistance; Proteins
|
Abstract/Contents: | "Researchers at the University of Nebraska have been investigating the role of peroxidases in the defense response of resistant and susceptible warm-season turfgrasses to chinch bug feeding. Their progress includes: Correlation analyses of 28 buffalograss genotypes with varying levels of chinch bug resistance and ploidy levels indicated that buffalograss total protein content was correlated to chinch bug injury, while basal peroxidase levels was not, suggesting that the up-regulation of peroxidases in resistant buffalograsses is a direct response to chinch bug feeding. Research also characterized peroxidase changes in resistant and susceptible buffalograsses and zoysiagrasses challenged by chinch bugs. These studies documented an increase in peroxidase activity in the resistant buffalograsses in response to insect feeding. These findings suggest that an initial plant defense response to chinch bug feeding may be to elevate levels of specific oxidative enzymes, such as peroxidase, to help detoxify peroxides that accumulate in response to plant stress. Native gel electrophoresis analysis identified differences in the isozyme profiles of infested and control buffalograsses 'Prestige' and 196, and the zoysiagrass 'Zorro'. These results suggest that peroxidases have the potential to used as markers for selecting chinch bug resistant turfgrasses, and may help explain how plants defend themselves against biotic stresses, such as chinch bugs. Knowledge gained from this research will benefit golf course superintendents, sod producers, and other turfgrass managers by furnishing turfgrasses with improved resistance to chinch bugs." |
Language: | English |
References: | 16 |
Note: | Summary as abstract Pictures, color & b/w Figures Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Heng-Moss, T., O. Gulsen, T. Eichkoff, R. Shearman, and F. Baxendale. 2010. The role of peroxidases in the defense response of warm-season turfgrasses to chinch bugs. USGA Turfgrass Environ. Res. Online. 9(11):p. [1-10]. |
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| Web URL(s): http://usgatero.msu.edu/v09/n11.pdf Last checked: 06/01/2010 Requires: PDF Reader |
| MSU catalog number: b3952822a |
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