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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=117
Last checked: 06/03/2013
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): | Rahman, A.;
Uddin, W. |
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| Author Affiliation: | Pennsylvania State University, State College, PA |
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| Title: | Induction of plant defense response by salicylic acid in perennial ryegrass turf against gray leaf spot caused by Magnaporthe oryzae |
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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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| Meeting Info.: | Austin, Texas: August 10-14, 2013 |
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| Source: | Phytopathology. Vol. 103, No. 6S, June supplement 2013, p. S2.117-S2.118. |
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| Publishing Information: | St. Paul, Minnesota: American Phytopathological Society |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Chromatography; Cultivar evaluation; Disease control; Gray leaf spot; Liquid chromatography; Lolium perenne; Pyricularia grisea
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| Cultivar Names: | Legacy II |
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| Abstract/Contents: | "A study was conducted to determine the salicylic acid (SA)-mediated defense response against gray leaf spot disease in perennial ryegrass turf. High performance liquid chromatography analysis of perennial ryegrass (cultivar Legacy II) leaf extracts showed that the basal level of endogenous salicylic acid is significantly low (41.12 ^D+- 5.4 ng/g fresh weight) compared to the high amount reported in rice (5000-30,000 ng/g fresh weight). Following the inoculation of perennial ryegrass plants with Magnaporthe oryzae, the concentration of endogenous SA in perennial ryegrass increased over fivefold (>230 ng/g fw) within 72 hours. Exogenous application of 1.5 mM SA to perennial ryegrass reduced gray leaf spot incidence and severity by 31 and 35%, respectively. Similarly, 5 mM BTH (benzo(1,2,3) thiadiazole-7-carbothioic acid S-methyl ester), a chemical analogue of SA, also reduced gray leaf spot incidence by 50% and disease severity by 70%. This study indicates that SA-mediated defense response plays a role in protecting perennial ryegrass against gray leaf spot disease. The levels of expression of different pathogenesis-related (PR) genes associated with SA mediated suppression of gray leaf spot disease in perennial ryegrass will be further discussed." |
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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):
Rahman, A., and W. Uddin. 2013. Induction of plant defense response by salicylic acid in perennial ryegrass turf against gray leaf spot caused by Magnaporthe oryzae. Phytopathology. 103(6S):p. S2.117-S2.118. |
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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=117
Last checked: 06/03/2013
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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