The Arabidopsis thaliana response regulator ARR22 is a putative AHP phospho-histidine phosphatase expressed in the chalaza of developing seeds

Horák, Jakub; Grefen, Christopher; Berendzen, Kenneth W.; Achim, Hahn; Stierhof, York‐Dieter; Bettina, Stadelhofer; Stahl, Mark; Koncz, Csaba; Harter, Klaus

doi:10.1186/1471-2229-8-77

Cited by 87 publications

(94 citation statements)

References 62 publications

(93 reference statements)

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“…Coding sequences of mature PPR proteins and full-length, N-terminus, or C-terminus encoding portions of ORRM1 were amplified with, respectively, and cloned into the PCR8/TOPO/GW vector. These sequences were then shuttled into the pGADT7GW and pGBKT7GW vectors (62) to create GAL4 activation domain (AD) fusion and DNA binding domain (BD) fusion, respectively. Protein expression constructs.…”

Section: Methodsmentioning

confidence: 99%

An RNA recognition motif-containing protein is required for plastid RNA editing in Arabidopsis and maize

Sun

Germain

Giloteaux

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

132

185

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Plant RNA editing modifies cytidines (C) to uridines (U) at specific sites in the transcripts of both mitochondria and plastids. Specific targeting of particular Cs is achieved by pentatricopeptide proteins that recognize cis elements upstream of the C that is edited. Members of the RNA-editing factor interacting protein (RIP) family in Arabidopsis have recently been shown to be essential components of the plant editosome. We have identified a gene that contains a pair of truncated RIP domains (RIP-RIP). Unlike any previously described RIP family member, the encoded protein carries an RNA recognition motif (RRM) at its C terminus and has therefore been named Organelle RRM protein 1 (ORRM1). ORRM1 is an essential plastid editing factor; in Arabidopsis and maize mutants, RNA editing is impaired at particular sites, with an almost complete loss of editing for 12 sites in Arabidopsis and 9 sites in maize. Transfection of Arabidopsis orrm1 mutant protoplasts with constructs encoding a region encompassing the RIP-RIP domain or a region spanning the RRM domain of ORRM1 demonstrated that the RRM domain is sufficient for the editing function of ORRM1 in vitro. According to a yeast two-hybrid assay, ORRM1 interacts selectively with pentatricopeptide transfactors via its RIP-RIP domain. Phylogenetic analysis reveals that the RRM in ORRM1 clusters with a clade of RRM proteins that are targeted to organelles. Taken together, these results suggest that other members of the ORRM family may likewise function in RNA editing.

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Section: Methodsmentioning

confidence: 99%

An RNA recognition motif-containing protein is required for plastid RNA editing in Arabidopsis and maize

Sun

Germain

Giloteaux

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

132

185

View full text Add to dashboard Cite

show abstract

“…The type-A ARRs (ARR3-9 and 15-17) are rapidly and transiently induced by cytokinin treatment and function as negative regulators of cytokinin signaling To et al, 2004;Lee et al, 2007;Hwang et al, 2012). The type-C ARRs (ARR22 and ARR24) have a domain structure similar to that of the type-A ARRs, but their expression is not induced by cytokinins (Kiba et al, 2004;Horák et al, 2008;Pils and Heyl, 2009). Although the role of type-C ARRs in cytokinin signaling is unclear, it has been proposed that ARR22 plays a positive role in the stress tolerance response (Kang et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

CYTOKININ RESPONSE FACTOR2 (CRF2) and CRF3 Regulate Lateral Root Development in Response to Cold Stress in Arabidopsis

et al. 2016

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ORCID IDs: 0000-0001-7997-1544 (C.C.); 0000-0003-1735-5564 (J.K.)Lateral roots (LRs) are a major determinant of the root system architecture in plants, and developmental plasticity of LR formation is critical for the survival of plants in changing environmental conditions. In Arabidopsis thaliana, genetic pathways have been identified that regulate LR branching in response to numerous environmental cues, including some nutrients, salt, and gravity. However, it is not known how genetic components are involved in the LR adaptation response to cold. Here, we demonstrate that CYTOKININ RESPONSE FACTOR2 (CRF2) and CRF3, encoding APETALA2 transcription factors, play an important role in regulating Arabidopsis LR initiation under cold stress. Analysis of LR developmental kinetics demonstrated that both CRF2 and CRF3 regulate LR initiation. crf2 and crf3 single mutants exhibited decreased LR initiation under cold stress compared with the wild type, and the crf2 crf3 double mutants showed additively decreased LR densities compared with the single mutants. Conversely, CRF2 or CRF3 overexpression caused increased LR densities. CRF2 was induced by cold via a subset of the cytokinin two-component signaling (TCS) pathway, whereas CRF3 was upregulated by cold via TCSindependent pathways. Our results suggest that CRF2 and CRF3 respond to cold via TCS-dependent and TCS-independent pathways and control LR initiation and development, contributing to LR adaptation to cold stress.

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“…The complete coding sequence was PCR amplified and recombined into pDONR201 using Gateway technology (Invitrogen). Truncations of BLI were generated by PCR (for oligonucleotides, see Supplemental Table 3 online), inserted into pCR8/GW-TOPO (Invitrogen), and recombined into the vector pGADT7-DEST (Horak et al, 2008) to generate GAL4-AD vectors. BD and AD clones were cotransformed into yeast strain AH109, and transformants were selected on medium lacking Trp and Leu.…”

Section: Yeast Two-hybrid Interaction Studiesmentioning

confidence: 99%

The CURLY LEAF Interacting Protein BLISTER Controls Expression of Polycomb-Group Target Genes and Cellular Differentiation ofArabidopsis thaliana

et al. 2010

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Polycomb-group (Pc-G) proteins are important regulators of many developmental processes in plants and animals and repress gene expression by imparting histone H3 lysine 27 trimethylation (H3K27me3). Here, we present the identification of the novel, plant-specific Arabidopsis thaliana protein BLISTER (BLI), which interacts with the Pc-G histone methyltransferase CURLY LEAF (CLF). We map the interaction of BLI with CLF to a predicted coiled-coil domain in BLI that shares similarity with STRUCTURAL MAINTENANCE OF CHROMOSOMES proteins. BLI colocalizes with CLF in the nucleus, shows an overlapping expression pattern with CLF throughout plant development that is strongest in dividing cells, and represses a subset of Pc-G target genes. Loss of BLI results in a pleiotropic developmental mutant phenotype, indicating that BLI prevents premature differentiation. Furthermore, bli mutants exhibit severe epidermal defects, including loss of cell adhesion, outgrowth of cells, and increased cotyledon cell size. As these phenotypes have not been observed in Pc-G mutants, we propose that BLI has functions related to Pc-G proteins but can also act independently in Arabidopsis development.

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The Arabidopsis thaliana response regulator ARR22 is a putative AHP phospho-histidine phosphatase expressed in the chalaza of developing seeds

Cited by 87 publications

References 62 publications

An RNA recognition motif-containing protein is required for plastid RNA editing in Arabidopsis and maize

An RNA recognition motif-containing protein is required for plastid RNA editing in Arabidopsis and maize

CYTOKININ RESPONSE FACTOR2 (CRF2) and CRF3 Regulate Lateral Root Development in Response to Cold Stress in Arabidopsis

The CURLY LEAF Interacting Protein BLISTER Controls Expression of Polycomb-Group Target Genes and Cellular Differentiation ofArabidopsis thaliana

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