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| DOI: | 10.1094/PHYTO-103-6-S2.1 |
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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-103-6-S2.1#page=101
Last checked: 07/03/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Nagabhyru, P.;
Dinkins, R. D.;
Bacon, C. W.;
Schardl, C. L. |
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| Author Affiliation: | Nagabhyru and Schardl: University of Kentucky; Dinkins: USDA Ars, Forage-Animal Production Research Unit, Lexington, KY; Bacon: USDA ARS, Toxicology and Mycotoxin Research Unit, Athens, GA |
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| Title: | Effect of endophyte on tall fescue host plant metabolite levels and gene expression under drought stress |
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| Section: | 2013 APS-MSA joint meeting abstracts of presentations
Other records with the "2013 APS-MSA joint meeting abstracts of presentations" Section
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| Source: | Phytopathology. Vol. 103, No. 6S, June Supplement 2013, p. S2.101. |
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| Publishing Information: | St. Paul, Minnesota: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Acremonium coenophialum; Drought resistance; Endophytes; Festuca arundinacea; Gene expression; Metabolites; Polyol; Proline
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| Abstract/Contents: | "Tall fescue is the most widely planted forage grass, often infected with endophytic symbiont Neotyphodium coenophialum (E+). The endophyte enhances adaptation to drought stress compared to asymboitic tall fescue (E-). To understand the basis for enhanced drought tolerance, we conducted time course studies in which water was withheld from 0 to 5 days, and examined the differences in the metabolic profiles and gene expression of E+ and E- clone pairs. Recovery experiments showed greater survival and recovery of E+ plants than E- plants. Endophyte induced changes in plant free sugars (glucose, fructose and trehalose), sugar alcahols (arabitol) and certain amino acids (proline) during early days of drought stress. Drought stress also increased the endophyte metabolites such as mannitol and lolines. Thus, endophyte helps plants in recovery from drought stress, through endophyte- induced changes in accumulation of the plant metabolites involved in osmotic adjustments and reactive oxygen scavenging. Quantification of phytohor-mones like jasmonic acid, abscisic acid and salicylic acid of E+ and E- clones in response to drought stress is in progress, and will further aid in understanding the endophyte effects on drought stress tolerance. Results from Illumina mRNA sequencing of E+ and E- clones subjected to drought stress, revealing differential expression of host plant genes in presence of endophyte, will also be presented." |
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| Language: | English |
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| References: | 0 |
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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):
Nagabhyru, P., R. D. Dinkins, C. W. Bacon, and C. L. Schardl. 2013. Effect of endophyte on tall fescue host plant metabolite levels and gene expression under drought stress. Phytopathology. 103(6S):p. S2.101. |
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| DOI: 10.1094/PHYTO-103-6-S2.1 |
| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-103-6-S2.1#page=101
Last checked: 07/03/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b2219736a |
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Digitally in TIC by file name: phytp2013junpres |
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