Transcriptomics and functional genomics of ROS-induced cell death regulation by RADICAL-INDUCED CELL DEATH1.
Plant responses to changes in environmental conditions are mediated by a network of signaling events leading to downstream responses, including changes in gene expression and activation of cell death programs. Arabidopsis thaliana RADICAL-INDUCED CELL DEATH1 (RCD1) has been proposed to regulate plan...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2014-02-01
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| Series: | PLoS Genetics |
| Online Access: | http://europepmc.org/articles/PMC3923667?pdf=render |
| _version_ | 1811296232237170688 |
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| author | Mikael Brosché Tiina Blomster Jarkko Salojärvi Fuqiang Cui Nina Sipari Johanna Leppälä Airi Lamminmäki Gloria Tomai Shaman Narayanasamy Ramesha A Reddy Markku Keinänen Kirk Overmyer Jaakko Kangasjärvi |
| author_facet | Mikael Brosché Tiina Blomster Jarkko Salojärvi Fuqiang Cui Nina Sipari Johanna Leppälä Airi Lamminmäki Gloria Tomai Shaman Narayanasamy Ramesha A Reddy Markku Keinänen Kirk Overmyer Jaakko Kangasjärvi |
| author_sort | Mikael Brosché |
| collection | DOAJ |
| description | Plant responses to changes in environmental conditions are mediated by a network of signaling events leading to downstream responses, including changes in gene expression and activation of cell death programs. Arabidopsis thaliana RADICAL-INDUCED CELL DEATH1 (RCD1) has been proposed to regulate plant stress responses by protein-protein interactions with transcription factors. Furthermore, the rcd1 mutant has defective control of cell death in response to apoplastic reactive oxygen species (ROS). Combining transcriptomic and functional genomics approaches we first used microarray analysis in a time series to study changes in gene expression after apoplastic ROS treatment in rcd1. To identify a core set of cell death regulated genes, RCD1-regulated genes were clustered together with other array experiments from plants undergoing cell death or treated with various pathogens, plant hormones or other chemicals. Subsequently, selected rcd1 double mutants were constructed to further define the genetic requirements for the execution of apoplastic ROS induced cell death. Through the genetic analysis we identified WRKY70 and SGT1b as cell death regulators functioning downstream of RCD1 and show that quantitative rather than qualitative differences in gene expression related to cell death appeared to better explain the outcome. Allocation of plant energy to defenses diverts resources from growth. Recently, a plant response termed stress-induced morphogenic response (SIMR) was proposed to regulate the balance between defense and growth. Using a rcd1 double mutant collection we show that SIMR is mostly independent of the classical plant defense signaling pathways and that the redox balance is involved in development of SIMR. |
| first_indexed | 2024-04-13T05:45:20Z |
| format | Article |
| id | doaj.art-f1c87d32d7c6424080d07f8a1c3ec23f |
| institution | Directory Open Access Journal |
| issn | 1553-7390 1553-7404 |
| language | English |
| last_indexed | 2024-04-13T05:45:20Z |
| publishDate | 2014-02-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS Genetics |
| spelling | doaj.art-f1c87d32d7c6424080d07f8a1c3ec23f2022-12-22T02:59:58ZengPublic Library of Science (PLoS)PLoS Genetics1553-73901553-74042014-02-01102e100411210.1371/journal.pgen.1004112Transcriptomics and functional genomics of ROS-induced cell death regulation by RADICAL-INDUCED CELL DEATH1.Mikael BroschéTiina BlomsterJarkko SalojärviFuqiang CuiNina SipariJohanna LeppäläAiri LamminmäkiGloria TomaiShaman NarayanasamyRamesha A ReddyMarkku KeinänenKirk OvermyerJaakko KangasjärviPlant responses to changes in environmental conditions are mediated by a network of signaling events leading to downstream responses, including changes in gene expression and activation of cell death programs. Arabidopsis thaliana RADICAL-INDUCED CELL DEATH1 (RCD1) has been proposed to regulate plant stress responses by protein-protein interactions with transcription factors. Furthermore, the rcd1 mutant has defective control of cell death in response to apoplastic reactive oxygen species (ROS). Combining transcriptomic and functional genomics approaches we first used microarray analysis in a time series to study changes in gene expression after apoplastic ROS treatment in rcd1. To identify a core set of cell death regulated genes, RCD1-regulated genes were clustered together with other array experiments from plants undergoing cell death or treated with various pathogens, plant hormones or other chemicals. Subsequently, selected rcd1 double mutants were constructed to further define the genetic requirements for the execution of apoplastic ROS induced cell death. Through the genetic analysis we identified WRKY70 and SGT1b as cell death regulators functioning downstream of RCD1 and show that quantitative rather than qualitative differences in gene expression related to cell death appeared to better explain the outcome. Allocation of plant energy to defenses diverts resources from growth. Recently, a plant response termed stress-induced morphogenic response (SIMR) was proposed to regulate the balance between defense and growth. Using a rcd1 double mutant collection we show that SIMR is mostly independent of the classical plant defense signaling pathways and that the redox balance is involved in development of SIMR.http://europepmc.org/articles/PMC3923667?pdf=render |
| spellingShingle | Mikael Brosché Tiina Blomster Jarkko Salojärvi Fuqiang Cui Nina Sipari Johanna Leppälä Airi Lamminmäki Gloria Tomai Shaman Narayanasamy Ramesha A Reddy Markku Keinänen Kirk Overmyer Jaakko Kangasjärvi Transcriptomics and functional genomics of ROS-induced cell death regulation by RADICAL-INDUCED CELL DEATH1. PLoS Genetics |
| title | Transcriptomics and functional genomics of ROS-induced cell death regulation by RADICAL-INDUCED CELL DEATH1. |
| title_full | Transcriptomics and functional genomics of ROS-induced cell death regulation by RADICAL-INDUCED CELL DEATH1. |
| title_fullStr | Transcriptomics and functional genomics of ROS-induced cell death regulation by RADICAL-INDUCED CELL DEATH1. |
| title_full_unstemmed | Transcriptomics and functional genomics of ROS-induced cell death regulation by RADICAL-INDUCED CELL DEATH1. |
| title_short | Transcriptomics and functional genomics of ROS-induced cell death regulation by RADICAL-INDUCED CELL DEATH1. |
| title_sort | transcriptomics and functional genomics of ros induced cell death regulation by radical induced cell death1 |
| url | http://europepmc.org/articles/PMC3923667?pdf=render |
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