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| DOI: | 10.1094/PHYTO-09-13-0268-R |
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| Web URL(s): | https://apsjournals.apsnet.org/doi/pdfplus/10.1094/PHYTO-09-13-0268-R
Last checked: 05/21/2014
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Rahman, Alamgir;
Kuldau, Gretchen A.;
Uddin, Wakar |
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| Author Affiliation: | Department of Plant Pathology & Environmental Microbiology, The Pennsylvania State University, University Park |
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| Title: | Induction of salicylic acid-mediated defense response in perennial ryegrass against infection by Magnaporthe oryzae |
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| Section: | Genetics and resistance
Other records with the "Genetics and resistance" Section
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| Source: | Phytopathology. Vol. 104, No. 6, June 2014, p. 614-623. |
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| Publishing Information: | Lancaster, Pennsylvania: The Society Intelligencer Printing Company for The American Phytopathological Society |
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| # of Pages: | 10 |
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| Related Web URL: | https://apsjournals.apsnet.org/doi/abs/10.1094/PHYTO-09-13-0268-R
Last checked: 07/13/2018
Notes: Abstract only |
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| Keywords: | TIC Keywords: Application timing; Benzothiadiazoles; Disease control; Ethephon; Gray leaf spot; Herbicide evaluation; Jasmonic acid; Lolium perenne; Pyricularia grisea; Salicylic acid
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| Abstract/Contents: | "Incorporation of plant defense activators is an innovative approach to development of an integrated strategy for the management of turfgrass diseases. The effects of salicylic acid (SA), benzothiadiazole (BTH, chemical analog of SA), jasmonic acid (JA), and ethephon (ET, an ethylene-releasing compound) on development of gray leaf spot in perennial ryegrass (Lolium perenne L.) caused by Magnaporthe oryzae were evaluated. Gray leaf spot disease incidence and severity were significantly decreased when plants were treated prior to inoculation with SA, BTH, and partially by ET but not by JA. Accumulation of endogenous SA and elevated expression of pathogenesis-related (PR)-1, PR-3.1, and PR-5 genes were associated with inoculation of plants by M. oryzae. Treatment of plants with SA enhanced expression levels of PR-3.1 and PR-5 but did not affect the PR-1 level, whereas BTH treatment enhanced relative expression levels of all three PR genes. Microscopic observations of leaves inoculated with M. oryzae revealed higher frequencies of callose deposition at the penetration sites in SA- and BTH-treated plants compared with the control plants (treated with water). These results suggest that early and higher induction of these genes by systemic resistance inducers may provide perennial ryegrass with a substantial advantage to defend against infection by M. oryzae." |
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| Language: | English |
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| References: | 64 |
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| Note: | Pictures, color
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Rahman, A., G. A. Kuldau, and W. Uddin. 2014. Induction of salicylic acid-mediated defense response in perennial ryegrass against infection by Magnaporthe oryzae. Phytopathology. 104(6):p. 614-623. |
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| DOI: 10.1094/PHYTO-09-13-0268-R |
| Web URL(s):
https://apsjournals.apsnet.org/doi/pdfplus/10.1094/PHYTO-09-13-0268-R
Last checked: 05/21/2014
Requires: PDF Reader |
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MSU catalog number: b2219736a |
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