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| DOI: | 10.1016/S0098-8472(00)00084-8 |
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| Web URL(s): | http://www.sciencedirect.com/science/article/pii/S0098847200000848
Last checked: 01/31/2014
Access conditions: Item is within a limited-access website |
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| Author(s): | Fu, Jinmin;
Huang, Bingru |
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| Author Affiliation: | Department of Horticulture, Forestry and Recreation Resources, Kansas State University, Manhattan, Kansas |
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| Title: | Involvement of antioxidants and lipid peroxidation in the adaptation of two cool-season grasses to localized drought stress |
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| Source: | Environmental and Experimental Botany. Vol. 45, No. 2, April 2001, p. 105-114. |
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| Publishing Information: | Oxford, England: Elmsford, N. Y. Pergamon Press |
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| # of Pages: | 10 |
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| Keywords: | TIC Keywords: Antioxidants; Lipids; Drought stress; Poa pratensis; Festuca arundinacea; Relative water content; Chlorophyll; Shoot growth; Superoxide dismutase; Catalase; Peroxidase; Dry weight; Cool season turfgrasses; Soil drying; Soil moisture
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| Abstract/Contents: | "In natural environments, drought often occurs in surface soil while water is available for plant uptake deeper in the soil profile. The objective of the study was to examine the involvement of antioxidant metabolism and lipid peroxidation in the responses of two cool-season grasses to surface soil drying. Kentucky bluegrass (Poa pratensis L) and tall fescue (Festuca arundinacea Schreb.) were grown in split tubes, consisting of two sections (each 10 cm in diameter and 20 cm long). Grasses were subjected to three soil moisture regimes: (a) well-watered control: whole soil profile was watered; (b) surface drying: surface 20 cm of soil was dried by withholding irrigation and the lower 20 cm of soil was watered; (c) full drying: whole soil profile was dried. Surface drying had no effects on relative water content (RWC) and chlorophyll content (Chl) for both grasses and only slightly reduced shoot growth for tall fescue. Superoxide dismutase (SOD) actvity increased, while catalase (CAT) and peroxidase (POD) activities remained unchanged during most periods of surface drying. Malondialdehyde (MDA) content was unaffected by surface drying for tall fescue, but increased initially and then decreased to the control level for Kentucky bluegrass. Under full drying, RWC, Chl content, and shoot dry weight decreased, but MDA content increased in both grasses; SOD and POD activites initially increased transiently and then decreased; CAT remained unchanged for 25 days and then decreased. These results suggested that both Kentucky bluegrass and tall fescue were capable of surviving surface soil drying. This capability could be related to increases in antioxidant activities, particlarly SOD and CAT. However, full drying suppressed antioxidant activities and induced lipid peroxidation." |
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| Language: | English |
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| References: | 43 |
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| See Also: | Also published as chapter 3 of Growth and Physiological Responses of Turfgrasses to Deficit Irrigation, 2003, R=101512 R=101512 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fu, J., and B. Huang. 2001. Involvement of antioxidants and lipid peroxidation in the adaptation of two cool-season grasses to localized drought stress. Environmental and Experimental Botany. 45(2):p. 105-114. |
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| DOI: 10.1016/S0098-8472(00)00084-8 |
| Web URL(s):
http://www.sciencedirect.com/science/article/pii/S0098847200000848
Last checked: 01/31/2014
Access conditions: Item is within a limited-access website |
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MSU catalog number: QK 711 .A1 R3 |
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