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Transcriptional regulation of the CRK/DUF26 group of Receptor-like rotein kinases by ozone and plant hormones in Arabidopsis
- Wrzaczek, Michael (author)
- Brosche, Mikael (author)
- Salojarvi, Jarkko (author)
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- Kangasjarvi, Saijaliisa (author)
- Idanheimo, Niina (author)
- Mersmann, Sophia (author)
- Robatzek, Silke (author)
- Karpinski, Stanislaw (author)
- Kangasjarvi, Jaakko (author)
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- (creator_code:org_t)
- 2010-05-25
- 2010
- English.
- In: BMC Plant Biology. - : Springer Science and Business Media LLC. - 1471-2229. ; 10, s. 95-
- Journal article (peer-reviewed)
Abstract
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- Background: Plant Receptor-like/Pelle kinases (RLK) are a group of onserved signalling components that regulate developmental programs and esponses to biotic and abiotic stresses. One of the largest RLK groups s formed by the Domain of Unknown Function 26 (DUF26) RLKs, also called ysteine-rich Receptor-like Kinases (CRKs), which have been suggested to lay important roles in the regulation of pathogen defence and rogrammed cell death. Despite the vast number of RLKs present in lants, however, only a few of them have been functionally haracterized. esults: We examined the transcriptional regulation of all Arabidopsis RKs by ozone (O(3)), high light and pathogen/ elicitor reatment-conditions known to induce the production of reactive oxygen pecies (ROS) in various subcellular compartments. Several CRKs were ranscriptionally induced by exposure to O(3) but not by light stress. (3) induces an extracellular oxidative burst, whilst light stress leads o ROS production in chloroplasts. Analysis of publicly available icroarray data revealed that the transcriptional responses of the CRKs o O(3) were very similar to responses to microbes or athogen-associated molecular patterns (PAMPs). Several mutants altered n hormone biosynthesis or signalling showed changes in basal and (3)-induced transcriptional responses. onclusions: Combining expression analysis from multiple treatments with utants altered in hormone biosynthesis or signalling suggest a model in hich O(3) and salicylic acid (SA) activate separate signaling pathways hat exhibit negative crosstalk. Although O(3) is classified as an biotic stress to plants, transcriptional profiling of CRKs showed trong similarities between the O(3) and biotic stress responses.
Subject headings
- NATURVETENSKAP -- Biologi -- Botanik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Botany (hsv//eng)
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- ref (subject category)
- art (subject category)
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