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Web URL(s): | http://usgatero.msu.edu/v05/n20.pdf Last checked: 10/12/2006 Requires: PDF Reader |
Publication Type:
| Report |
Author(s): | Heng-Moss, Tiffany M.;
Baxendale, Frederick P.;
Eickhoff, Thomas E.;
Shearman, Robert C. |
Author Affiliation: | Heng-Moss: Assistant Professor, Department of Entomology; Baxendale: Professor, Department of Entomology; Eickhoff: Graduate Research Assistant, Department of Entomology; Shearman: Professor and Extension Turfgrass Specialist, Department of Agronomy and Horticulture, University of Nebraska, Lincoln, Nebraska |
Title: | Physiological and biochemical responses of resistant and susceptible buffalograsses to chinch bug feeding |
Source: | USGA Turfgrass and Environmental Research Online. Vol. 5, No. 20, October 15 2006, p. [1-11]. |
Publishing Information: | Far Hills, NJ: United States Golf Association, Green Section |
# of Pages: | 13 |
Keywords: | TIC Keywords: Bouteloua dactyloides; Blissus occiduus; Carbon dioxide; Susceptibility; Photosynthesis; Proteins; Genetic resistance; Insect resistance; Insect pests; Enzymes; Pest control
|
Cultivar Names: | Prestige; 378 |
Abstract/Contents: | "Researchers at the University of Nebraska have been investigating the physiological and biochemical responses of resistant and susceptible buffalograss to chinch bug feeding. Their findings include: The effects of western chinch bug feeding on the physiological responses of resistant (Prestige) and susceptible (378) buffalograsses was documented through measurements of carbon exchange rate, light and carbon assimilation (A-Ci) curves, chlorophyll fluorescence, and nonstructural carbohydrates. These studies suggest that compensatory photosynthesis takes place in Prestige, but not in 378. Results from this research demonstrate that shortand long-term changes in photosynthetic compensation could be used to differentiate resistant and susceptible genotypes. Research also characterized protein changes in resistant and susceptible turfgrasses challenged by chinch bugs and explored the value of these changes as protein-mediated markers to screen for insect-resistant turfgrasses. These studies documented the loss of catalase activity in susceptible buffalograsses in response to chinch bug feeding, while resistant buffalograsses showed an increase in peroxidase activity. 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. 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: | 27 |
See Also: | Other Reports from this USGA research project: 2003-30-271 |
Note: | Pictures, color Tables Graphs Summary as abstract |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Heng-Moss, T. M., F. P. Baxendale, T. E. Eickhoff, and R. C. Shearman. 2006. Physiological and biochemical responses of resistant and susceptible buffalograsses to chinch bug feeding. USGA Turfgrass Environ. Res. Online. 5(20):p. [1-11]. |
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| Web URL(s): http://usgatero.msu.edu/v05/n20.pdf Last checked: 10/12/2006 Requires: PDF Reader |
| MSU catalog number: SB 433 .A1 A65 [online] |
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