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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2009jou789.pdf
Last checked: 10/18/2011
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| Access Restriction: | Certain MSU-hosted archive URLs may be restricted to legacy database members. |
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| Publication Type:
| Refereed |
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| Author(s): | Howieson, Mark J.;
Christians, Nick E. |
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| Author Affiliation: | Department of Horticulture, Iowa State University, Ames, Iowa |
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| Title: | Activities of antioxidant enyzymes, efficiency of PSII, and lipid peroxidation in mowed creeping bentgrass |
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| Section: | Physiology and stress physiology
Other records with the "Physiology and stress physiology" Section
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| Meeting Info.: | Santiago, Chile: July 26-30 2009 |
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| Source: | International Turfgrass Society Research Journal. Vol. 11, No. Part 2, 2009, p. 789-797. |
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| Publishing Information: | Madison, WI: International Turfgrass Society |
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| # of Pages: | 9 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Antioxidants; Enzyme activity; Mowing frequency; Mowing height; Photosystem II; Rolling
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| Abstract/Contents: | "The objective of this study was to determine if multiple cuttings may cause damage in creeping bentgrass (Agrostis stolonifera L.) growth and development more than single-cutting or rolling. Formation of reactive oxygen species (ROS) is a common response of plants to wounding. Because of the highly toxic nature of ROS, plants have developed enzymatic systems to scavenge ROS and protect cells from oxidative damage. Activities of ROS-scavenging enzymes ascorbate peroxidase (APX), catalase (CAT), glutathione reductase (GR), and superoxide dismutase (SOD) were assayed over time following mowing treatments made with an 108 kg electric greens mower. Single-cut grasses were mowed once at 1.3 cm, whereas double-cut grasses were mowed twice in the same direction at 1.3 cm. Grasses were rolled with the electric greens mower operated without the reel engaged. Control grasses were not rolled or mowed. Efficiency of photosystem II (PSII) and lipid peroxidation also were measured to quantify oxidative injury. Activities of APX and CAT were transiently reduced in rolled, single-cut, and double-cut grasses. However, reductions in the activities of these enzymes did not result in lipid peroxidation, likely because of increased GR activity. Decreases in efficiency of PSII were observed in rolled, single-cut, and double-cut grasses, suggesting reduced efficiency and inhibition of photochemical reactions. Duration and level of changes observed in antioxidant enzyme activities and efficiency of PSII of double-cut grasses suggest that multiple cuttings are more damaging to plant growth than rolling or single-cutting." |
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| Language: | English |
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| References: | 27 |
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| Note: | Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Howieson, M. J., and N. E. Christians. 2009. Activities of antioxidant enyzymes, efficiency of PSII, and lipid peroxidation in mowed creeping bentgrass. Int. Turfgrass Soc. Res. J. 11(Part 2):p. 789-797. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2009jou789.pdf
Last checked: 10/18/2011
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MSU catalog number: b2548899 |
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