Arabidopsis leaf necrosis caused by simulated acid rain is related to the salicylic acid signaling pathway
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Title
- Arabidopsis leaf necrosis caused by simulated acid rain is related to the salicylic acid signaling pathway
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Author(s)
- Lee, Y; Park, J; Im, K; Kim, K; Lee, J; Lee, K; Park, JA; Lee, TK; Park, DS; Yang, JS; Kim, D; Lee, S
- KIOST Author(s)
- Lee, Taek Kyun(이택견)
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Alternative Author(s)
- 이택견
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Publication Year
- 2006-01
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Abstract
- Arabidopsis leaves treated with simulated acid rain (SiAR) showed phenotypes similar to necrotic lesions caused by biotic stresses like Pseudomonad infiltration. Exposure of Arabidopsis to SiAR resulted in the up-regulation of genes known to be induced by the salicylic acid (SA)-mediated pathogen resistance response. The expression of enhanced disease susceptibility (EDS), nonexpressor of PR (NPR) and pathogenrelated I (PRI), all of which are involved in the salicylic acid signaling pathway, were increased after SiAR exposure. However, vegetative storage protein (VSP), a member of the jasmonic acid pathway did not show a significant change in transcript level. SiAR treatment of transgenic plants expressing salicylate hydroxylase (Nah-G), which prevents the accumulation of salicylic acid, underwent more extensive necrosis than wild-type plants, indicating that the signaling pathway activated by SiAR may overlap with the SA-dependent, systemic acquired resistance pathway. Both Col-0 and Nah-G plants showed sensitivity to SiAR and sulfuric SiAR (S-SiAR) by developing necrotic lesions. Neither Col-0 plants nor Nah-G plants showed sensitivity to nitric SiAR (N-SiAR). These results suggest that SiAR activates at least the salicylic acid pathway and activation of this pathway is sensitive to sulfuric acid. (c) 2006 Elsevier SAS. All rights reserved.
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ISSN
- 0981-9428
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/4929
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DOI
- 10.1016/j.plaphy.2006.01.003
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Bibliographic Citation
- PLANT PHYSIOLOGY AND BIOCHEMISTRY, v.44, no.1, pp.38 - 42, 2006
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Publisher
- ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
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Subject
- DISEASE RESISTANCE; CELL-DEATH; EXPRESSION; GENES; RESPONSES; THALIANA; CULTIVARS; EDS1
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Keywords
- Arabidopsis; necrosis; nitrogen oxide; salicylic acid (SA); simulated acid rain (SiAR); sulfuric acid
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Type
- Article
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Language
- English
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Document Type
- Article
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