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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2013jou497.pdf
Last checked: 07/06/2015
Requires: PDF Reader |
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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): | Burgess, Patrick;
Gianfagna, Thomas;
Huang, Bingru |
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| Author Affiliation: | Department of Plant Biology and Pathology, Rutgers University, New Brunswick, NJ |
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| Title: | Fatty acid metabolism in leaves and roots associated with improved drought tolerance in Agrostis stolonifera expressing SAG12-ipt gene controlling cytokinin synthesis |
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| Section: | Physiology and stress physiology
Other records with the "Physiology and stress physiology" Section
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| Meeting Info.: | Beijing, China: July 14-19, 2013 |
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| Source: | International Turfgrass Society Research Journal. Vol. 12, 2013, p. 497-502. |
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| Publishing Information: | Madison, Wisconsin: International Turfgrass Society |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Drought resistance; Drought stress; Electrolyte leakage; Fatty acids; Gene expression; Lipid peroxidation
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| Abstract/Contents: | "Creeping bentgrass over-expressing the SAG12-ipt gene encoding adenine isopentenyl phosphotransferase controlling cytokinin synthesis exhibited improved drought tolerance. This study was designed to elucidate whether changes in membrane fatty acid composition and saturation levels in leaves and roots are associated with improved growth of creeping bentgrass (Agrostis stolonifera) under drought stress. SAG12-ipt transgenic and wild-type (WT) plants were exposed to well-watered conditions or drought stress for 15 d. Leaves and roots were sampled at 8 d and 15 d of drought and the following morphological and metabolic parameters were compared between the transgenic and WT plants, including visual evaluation of turf quality (TQ), relative water content of leaves (RWC), photochemical efficiency of leaves (Fv/Fm), leaf and root membrane stability via electrolyte leakage (EL), leaf and root lipid peroxidation by quantifying malondialdehyde production (MDA), leaf and root membrane fatty acid content and saturation level. Compared to WT plants, transgenic plants maintained significantly higher TQ, higher leaf RWC and Fv/Fm, as well as lower EL and MDA in leaves and roots under drought stress. Transgenic plants maintained higher levels of long-chain unsaturated fatty acids such as linoleic (C18:2) and linolenic (C18:3) acid during drought compared to WT plants. Increased unsaturated fatty acids could help maintain membrane fluidity, contributing to continued leaf and root growth during drought stress in the transgenic plants as demonstrated by enhanced turf quality and physiological activities." |
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| Language: | English |
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| References: | 29 |
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| See Also: | See also related dissertation, Physiological and Biochemical Factors Associated with Drought Tolerance of Agrostis stolonifera, 2017, R=287921. R=287921 |
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| See Also: | Other items relating to: Breeding for Drought |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Burgess, P., T. Gianfagna, and B. Huang. 2013. Fatty acid metabolism in leaves and roots associated with improved drought tolerance in Agrostis stolonifera expressing SAG12-ipt gene controlling cytokinin synthesis. Int. Turfgrass Soc. Res. J. 12:p. 497-502. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2013jou497.pdf
Last checked: 07/06/2015
Requires: PDF Reader |
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MSU catalog number: b2394179 |
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