Transcriptional regulation of the CRK/DUF26 group of Receptor-like protein kinases by ozone and plant hormones in Arabidopsis

BMC Plant Biology

Research Article

Saijaliisa Kangasjärvi¹  Barbara Karpińska²  Stanisław Karpiński³  Sophia Mersmann⁴  Silke Robatzek⁵  Michael Wrzaczek⁶  Jarkko Salojärvi⁶  Mikael Brosché⁶  Jaakko Kangasjärvi⁶  Niina Idänheimo⁶ 

[1] Department of Biology, University of Turku, FI-20014, Turku, Finland;Department of Life Sciences, Södertörn University College, SE-141 89, Huddinge, Sweden;Department of Plant Genetics, Breeding and Plant Biotechnology, Warsaw University of Life Sciences, Nowoursynowska st. 159, PL 02-776, Warsaw, Poland;Max-Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, DE-50829, Cologne, Germany;Max-Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, DE-50829, Cologne, Germany;The Sainsbury Laboratories, Norwich Research Park, Colney Lane, NR4 7UH, Norwich, UK;Plant Biology Division, Department of Biosciences, University of Helsinki, FI-00014, Helsinki, Finland;

关键词: Reactive Oxygen Species;    Salicylic Acid;    Reactive Oxygen Species Production;    Paraquat;    Jasmonic Acid;   

DOI  :  10.1186/1471-2229-10-95

 received in 2009-10-14, accepted in 2010-05-25,  发布年份 2010

来源: Springer

【 摘 要 】

BackgroundPlant Receptor-like/Pelle kinases (RLK) are a group of conserved signalling components that regulate developmental programs and responses to biotic and abiotic stresses. One of the largest RLK groups is formed by the Domain of Unknown Function 26 (DUF26) RLKs, also called Cysteine-rich Receptor-like Kinases (CRKs), which have been suggested to play important roles in the regulation of pathogen defence and programmed cell death. Despite the vast number of RLKs present in plants, however, only a few of them have been functionally characterized.ResultsWe examined the transcriptional regulation of all Arabidopsis CRKs by ozone (O3), high light and pathogen/elicitor treatment - conditions known to induce the production of reactive oxygen species (ROS) in various subcellular compartments. Several CRKs were transcriptionally induced by exposure to O3 but not by light stress. O3 induces an extracellular oxidative burst, whilst light stress leads to ROS production in chloroplasts. Analysis of publicly available microarray data revealed that the transcriptional responses of the CRKs to O3 were very similar to responses to microbes or pathogen-associated molecular patterns (PAMPs). Several mutants altered in hormone biosynthesis or signalling showed changes in basal and O3-induced transcriptional responses.ConclusionsCombining expression analysis from multiple treatments with mutants altered in hormone biosynthesis or signalling suggest a model in which O3 and salicylic acid (SA) activate separate signaling pathways that exhibit negative crosstalk. Although O3 is classified as an abiotic stress to plants, transcriptional profiling of CRKs showed strong similarities between the O3 and biotic stress responses.

【 授权许可】

Unknown   
© Wrzaczek et al; licensee BioMed Central Ltd. 2010. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.