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| Web URL(s): | http://turf.rutgers.edu/research/abstracts/symposium2009.pdf#page=56
Last checked: 06/03/2016
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Xu, Chenping;
Huang, Bingru |
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| Author Affiliation: | Department of Plant Biology and Pathology, Rutgers University |
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| Title: | Proteomic response to drought stress in Kentucky bluegrass cultivars differing in drought tolerance |
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| Section: | Poster presentations
Other records with the "Poster presentations" Section
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| Meeting Info.: | New Brunswick, NJ: January 12, 2009 |
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| Source: | Proceedings of the Eighteenth Annual Rutgers TurfgrassSymposium. 2009, p. 55. |
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| Publishing Information: | New Brunswick, NJ: Center for Turfgrass Science, Cook College, Rutgers, The State University of New Jersey |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Drought stress; Poa pratensis; Drought resistance; Variety trials; Proteins; Enzymes
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| Abstract/Contents: | "Drought is one of the major limiting factors of plant production worldwide. Understanding genetic variations and mechanisms in turfgrass drought tolerance would facilitate breeding and management programs to improve turf quality under drought stress. The objective of this study was to investigate protein changes associated with drought tolerance in two Kentucky bluegrass (Poa pratensis L.) cultivars. Plants of 'Brilliant' and 'Midnight' were subjected to drought stress by withholding water for 15 days in growth chambers. The leaves were harvested at 5, 10, and 15 days after frought treatment. Midnight maintained higher relative water content and photochemical efficiency, and lower membrane leakage than Brilliant at 15 d of drought stress. Proteins were extracted and separated by differential gel electrophoresis. Ninety four leaf protein spots were differentially accumulated in response to drought stress in at least one cultivar. The sequences of 45 protein spots were analyzed using mass spectometry and 39 spots were identified. The results revealed that Brilliant exhibited more severe protein degradation than Midnight. Many protein spots identified as enzymes (glycine hydroxymethylthransferase and aminomethyltransferase) involved in amino acid metabolism were reduced by drought in both cultivars. One protein for ascorbate peroxidase decreased in abundance only in 'Brilliant', indicating antioxidant enzymes were down-regulated by drought stress, which may weaken the antioxidative scavenging capacity for 'Brilliant' under drought stress. One protein with putative function as heat shock protein 70 was found to increase in its abundance under drought only in 'Midnight', suggesting that heat shock proteins may contribute to superior drought tolerance in 'Midnight'. |
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| Language: | English |
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| References: | 0 |
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| See Also: | Other items relating to: Disasters - Drought |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Xu, C., and B. Huang. 2009. Proteomic response to drought stress in Kentucky bluegrass cultivars differing in drought tolerance. Proc. Annu. Rutgers Turfgrass Symp. p. 55. |
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| Web URL(s):
http://turf.rutgers.edu/research/abstracts/symposium2009.pdf#page=56
Last checked: 06/03/2016
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b3696858 |
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Digitally in TIC by file name: rutsy2009jan |
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