The endoplasmic reticulum stress signaling pathways in plants

Urade, Reiko

doi:10.1002/biof.45

Cited by 58 publications

(51 citation statements)

References 50 publications

(113 reference statements)

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“…Among the class of stress response and defense proteins, increased levels were observed for phosphorylated disulfide-isomerase A6 (spot 83), which is an highly conserved protein in eukaryotic cells; it is located in endoplasmic reticulum (ER), where preserves compartment homeostasis through a mechanism referred to as unfolded protein response [48], and is implicated in seed development and pathogen response [49]. Conversely, phosphorylated luminal-binding protein 1 and 2 (spot 91) levels appeared decreased.…”

Section: Woundingmentioning

confidence: 99%

Response to biotic and oxidative stress in Arabidopsis thaliana: Analysis of variably phosphorylated proteins

Huang

Verrillo

Renzone

et al. 2011

Journal of Proteomics

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Section: Woundingmentioning

confidence: 99%

Response to biotic and oxidative stress in Arabidopsis thaliana: Analysis of variably phosphorylated proteins

Huang

Verrillo

Renzone

et al. 2011

Journal of Proteomics

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“…If this proves impossible, the apoptosis pathway is activated and the cell eventually dies (Ron and Walter, 2007). The molecular mechanism underlying this physiological response has been studied extensively in yeast and mammals, and recent studies have focused on this signaling pathway in plants (Urade, 2007;Vitale and Boston, 2008;Urade, 2009). This article focuses on recent advances in plant research related to the molecular mechanism that supports the unfolded protein response and its impact on physiological plant processes.…”

Section: Introductionmentioning

confidence: 99%

The physiological role of the unfolded protein response in plants

Moreno

Orellana

2011

Biol. Res.

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SUMMARYUnfolded protein response (UPR) is a signaling mechanism activated by misfolded protein accumulation in the endoplasmic reticulum. It is a widespread process that has been described in organisms ranging from yeasts to mammals. In recent years, our understanding of UPR signaling pathway in plants has advanced. Two transcription factors from Arabidopsis thaliana have been reported to function as the sensor/ transducer of this response (AtbZIP60 and AtbZIP28). They seem to be involved in both heat and biotic stress. Furthermore, overexpression of one of them (AtbZIP60) produces plants with a higher tolerance for salt stress, suggesting that this transcription factor may play a role in abiotic stress. Furthermore, some data suggest that crosstalk between genes involved in abiotic stress and UPR may also exist in plants. On the other hand, UPR is related to programmed cell death (PCD) in plants given that that triggering UPR results in induction of PCD-related genes. This article reviews the latest progress in understanding UPR signaling in plants and analyzes its relationship to key processes in plant physiology.

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“…Disruption of the equilibrium between the secretory activity of the cell and the processing and folding capacities of the ER promotes a condition that is known as ER stress. In general, perturbation of ER homeostasis by ER stress leads to the accumulation of unfolded proteins in the lumen of the organelle, which could also trigger the need for increased levels of chaperones such as HSP90 and BCS1 [46,47]. Of the four gene sequences identified in the hybridization analyses that map to chromosome 5BL, the expression profile of accession AJ610871 makes it the best candidate for the monogenic resistance gene Pm36.…”

Section: Functional Annotation Of Differentially Expressed Sequencesmentioning

confidence: 99%

Development of a new wheat microarray from a durum wheat totipotent cDNA library used for a powdery mildew resistance study

Cifarelli¹,

D’onofrio²,

Grillo³

et al. 2013

Cellular and Molecular Biology Letters

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Totipotent cDNA libraries representative of all the potentially expressed sequences in a genome would be of great benefit to gene expression studies. Here, we report on an innovative method for creating such a library for durum wheat (Triticum turgidum L. var. durum) and its application for gene discovery. The use of suitable quantities of 5-azacytidine during the germination phase induced the demethylation of total DNA, and the resulting seedlings potentially express all of the genes present in the genome. A new wheat microarray consisting of 4925 unigenes was developed from the totipotent cDNA library and used to screen for genes that may contribute to differences in the disease resistance of two near-isogenic lines, the durum wheat cultivar Latino and the line 5BIL-42, which are respectively susceptible and resistant to powdery mildew. Fluorescently labeled cDNA was prepared from the RNA of seedlings of the two near-isogenic wheat lines after infection with a single powdery mildew isolate under controlled conditions in the greenhouse. Hybridization to the microarray identified six genes that were differently expressed in the two lines. Four of the sequences could be assigned putative functions based on their similarity to known genes in public databases. Physical mapping of the six genes localized them to two regions of the genome: the centromeric region of chromosome 5B, where the Pm36 resistance gene was previously localized, and chromosome 6B.

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The endoplasmic reticulum stress signaling pathways in plants

Cited by 58 publications

References 50 publications

Response to biotic and oxidative stress in Arabidopsis thaliana: Analysis of variably phosphorylated proteins

Response to biotic and oxidative stress in Arabidopsis thaliana: Analysis of variably phosphorylated proteins

The physiological role of the unfolded protein response in plants

Development of a new wheat microarray from a durum wheat totipotent cDNA library used for a powdery mildew resistance study

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