Role of calreticulin in biotic and abiotic stress signalling and tolerance mechanisms in plants

Joshi, Rekha; Paul, Maike; Kumar, Anil; Pandey, Dinesh

doi:10.1016/j.gene.2019.144004

Cited by 44 publications

(25 citation statements)

References 128 publications

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“…The defense-related genes tend to be the same as the ROS-related genes. These include cation exchangers and calreticulin, which play a role in resistance to biotic and abiotic stress and plant protection against oxidative stress [57,58], and beta-1,3-glucanase, which retards fungal growth and reducing fruit spoilage [59].…”

Section: Discussionmentioning

confidence: 99%

A Comparison of the Transcriptomes of Cowpeas in Response to Two Different Ionizing Radiations

Kang

Seo

Park

et al. 2021

Plants

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In this study, gene expression changes in cowpea plants irradiated by two different types of radiation: proton-beams and gamma-rays were investigated. Seeds of the Okdang cultivar were exposed to 100, 200, and 300 Gy of gamma-rays and proton-beams. In transcriptome analysis, the 32, 75, and 69 differentially expressed genes (DEGs) at each dose of gamma-ray irradiation compared with that of the control were identified. A total of eight genes were commonly up-regulated for all gamma-ray doses. However, there were no down-regulated genes. In contrast, 168, 434, and 387 DEGs were identified for each dose of proton-beam irradiation compared with that of the control. A total of 61 DEGs were commonly up-regulated for all proton-beam doses. As a result of GO and KEGG analysis, the ranks of functional categories according to the number of DEGs were not the same in both treatments and were more diverse in terms of pathways in the proton-beam treatments than gamma-ray treatments. The number of genes related to defense, photosynthesis, reactive oxygen species (ROS), plant hormones, and transcription factors (TF) that were up-/down-regulated was higher in the proton beam treatment than that in gamma ray treatment. Proton-beam treatment had a distinct mutation spectrum and gene expression pattern compared to that of gamma-ray treatment. These results provide important information on the mechanism for gene regulation in response to two ionizing radiations in cowpeas.

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Section: Discussionmentioning

confidence: 99%

A Comparison of the Transcriptomes of Cowpeas in Response to Two Different Ionizing Radiations

Kang

Seo

Park

et al. 2021

Plants

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“…Further, genes related to antioxidants, HSP, and osmolyte synthetic enzymes are activated in response to salinity stress. However, salinity stress signal transduction has remained intriguing owing to its complexity and commonality with drought stress signals ( Joshi et al, 2019 ).…”

Section: Signaling Mechanismsmentioning

confidence: 99%

Plant Growth-Promoting Bacteria: Biological Tools for the Mitigation of Salinity Stress in Plants

et al. 2020

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Salinity stress is one of the major abiotic stresses threatening sustainable crop production worldwide. The extent of salinity affected area is expected to cover about 50% of total agricultural land by 2050. Salinity stress produces various detrimental effects on plants’ physiological, biochemical, and molecular features and reduces productivity. The poor plant growth under salinity stress is due to reduced nutrient mobilization, hormonal imbalance, and formation of reactive oxygen species (ROS), ionic toxicity, and osmotic stress. Additionally, salinity also modulates physicochemical properties and reduces the microbial diversity of soil and thus decreases soil health. On the other hand, the demand for crop production is expected to increase in coming decades owing to the increasing global population. Conventional agricultural practices and improved salt-tolerant crop varieties will not be sufficient to achieve the yields desired in the near future. Plants harbor diverse microbes in their rhizosphere, and these have the potential to cope with the salinity stress. These salinity-tolerant plant growth-promoting bacteria (PGPB) assist the plants in withstanding saline conditions. These plant-associated microbes produce different compounds such as 1-aminocyclopropane-1-carboxylate (ACC) deaminase, indole-3-acetic acid (IAA), antioxidants, extracellular polymeric substance (EPS), and volatile organic compounds (VOC). Additionally, the naturally associated microbiome of plants has the potential to protect the host through stress avoidance, tolerance, and resistance strategies. Recent developments in microbiome research have shown ways in which novel microbe-assisted technologies can enhance plant salt tolerance and enable higher crop production under saline conditions. This focused review article presents the global scenario of salinity stress and discusses research highlights regarding PGPB and the microbiome as a biological tool for mitigation of salinity stress in plants.

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“…The absence of defects in single isoform mutants could be explained by compensation of certain functions because of functional redundancy (Kim et al , 2013). Other potential roles of plant CRTs in abiotic and biotic stress responses have been recently reviewed (Joshi et al , 2019). For biotic stress, tobacco calreticulin was shown to be involved in cell‐to‐cell movement of TMV (Chen et al , 2005) and it has been shown that CRT3 plays a role in folding of EFR (but not FLS2), establishing also a link to induction of PAMP‐triggered immunity (Christensen et al , 2010; Li et al , 2009).…”

Section: Discussionmentioning

confidence: 99%

Loss of function of CRT1a (calreticulin) reduces plant susceptibility toVerticillium longisporumin bothArabidopsis thalianaand oilseed rape (Brassica napus)

Pröbsting

Schenke

Hossain

et al. 2020

Plant Biotechnology Journal

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Brassica napus is highly susceptible towards Verticillium longisporum (Vl43) with no effective genetic resistance. It is believed that the fungus reprogrammes plant physiological processes by up-regulation of so-called susceptibility factors to establish a compatible interaction. By transcriptome analysis, we identified genes, which were activated/up-regulated in rapeseed after Vl43 infection. To test whether one of these genes is functionally involved in the infection process and loss of function would lead to decreased susceptibility, we firstly challenged KO lines of corresponding Arabidopsis orthologs with Vl43 and compared them with wild-type plants. Here, we report that the KO of AtCRT1a results in drastically reduced susceptibility of plants to Vl43. To prove crt1a mutation also decreases susceptibility in B. napus, we identified 10 mutations in a TILLING population. Three T3 mutants displayed increased resistance as compared to the wild type. To validate the results, we generated CRISPR/Cas-induced BnCRT1a mutants, challenged T2 plants with Vl43 and observed an overall reduced susceptibility in 3 out of 4 independent lines. Genotyping by allele-specific sequencing suggests a major effect of mutations in the CRT1a A-genome copy, while the C-genome copy appears to have no significant impact on plant susceptibility when challenged with Vl43. As revealed by transcript analysis, the loss of function of CRT1a results in activation of the ethylene signalling pathway, which may contribute to reduced susceptibility. Furthermore, this study demonstrates a novel strategy with great potential to improve plant disease resistance.

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Role of calreticulin in biotic and abiotic stress signalling and tolerance mechanisms in plants

Cited by 44 publications

References 128 publications

A Comparison of the Transcriptomes of Cowpeas in Response to Two Different Ionizing Radiations

A Comparison of the Transcriptomes of Cowpeas in Response to Two Different Ionizing Radiations

Plant Growth-Promoting Bacteria: Biological Tools for the Mitigation of Salinity Stress in Plants

Loss of function of CRT1a (calreticulin) reduces plant susceptibility toVerticillium longisporumin bothArabidopsis thalianaand oilseed rape (Brassica napus)

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