Role of phospholipid signalling in plant environmental responses

Ruelland, Éric; Kravets, V. S.; Derevyanchuk, Michael; Martinec, Jan; Zachowski, Alain; Pokotylo, Igor

doi:10.1016/j.envexpbot.2014.08.009

Cited by 109 publications

(79 citation statements)

References 175 publications

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“…Among the dozens of identified effector proteins of PA in these cellular responses in plants (Ruelland et al, 2015; Hou et al, 2016), our RNA-seq analysis showed that ABI1, MAPK, and SOD were upregulated in Buseok under UV-B exposure (Figure 3). PA binding to ABI1 helps tether it to the plasma membrane where it interact with ATHB6, a negative regulator of ABA signaling involved in stomatal closure in response to drought and salinity stress (Zhang et al, 2004).…”

Section: Discussionmentioning

confidence: 77%

“…InsP3 generated via the hydrolysis of PI-PLC diffuses into the cytosol and is involved in the release of Ca 2+ from intracellular stores (Ruelland et al, 2015). Owing to a lack of InsP3 receptors in plants, InsP3 is converted into the more phosphorylated forms of inositol, i.e., tetra, penta, and hexaphosphates (InsP4, InsP5, and InsP6), through further phosphorylation steps involving at least two types of inositol polyphosphate 2-kinase (IPK1) and inositol polyphosphate kinase 2 (IPK2, synonym for inositol 1,3,4-trisphosphate 5/6-kinase) (Munnik and Vermeer, 2010; Zhou et al, 2012; Sparvoli and Cominelli, 2015).…”

Section: Resultsmentioning

confidence: 99%

“…Our results suggest that defense mechanisms against UV-B stress are provoked through PA-dependent signaling pathways via the sequential actions of PI-PLC and DGK, and that cell death and immunity systems also operate during this response (Figure 6). Significant advances have been made in elucidating stress-induced PA signal transduction during the past several years, as described in recent reviews (Ruelland et al, 2015; Singh et al, 2015; Hong et al, 2016; Hou et al, 2016). PA is the common product of the phospholipase D (PLD) and PLC/DGK pathways, which use different phospholipids as substrates.…”

Section: Discussionmentioning

confidence: 99%

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Transcriptomic Profiling of Soybean in Response to High-Intensity UV-B Irradiation Reveals Stress Defense Signaling

et al. 2016

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The depletion of the ozone layer in the stratosphere has led to a dramatic spike in ultraviolet B (UV-B) intensity and increased UV-B light levels. The direct absorption of high-intensity UV-B induces complex abiotic stresses in plants, including excessive light exposure, heat, and dehydration. However, UV-B stress signaling mechanisms in plants including soybean (Glycine max [L.]) remain poorly understood. Here, we surveyed the overall transcriptional responses of two soybean genotypes, UV-B-sensitive Cheongja 3 and UV-B-resistant Buseok, to continuous UV-B irradiation for 0 (control), 0.5, and 6 h using RNA-seq analysis. Homology analysis using UV-B-related genes from Arabidopsis thaliana revealed differentially expressed genes (DEGs) likely involved in UV-B stress responses. Functional classification of the DEGs showed that the categories of immune response, stress defense signaling, and reactive oxygen species (ROS) metabolism were over-represented. UV-B-resistant Buseok utilized phosphatidic acid-dependent signaling pathways (based on subsequent reactions of phospholipase C and diacylglycerol kinase) rather than phospholipase D in response to UV-B exposure at high fluence rates, and genes involved in its downstream pathways, such as ABA signaling, mitogen-activated protein kinase cascades, and ROS overproduction, were upregulated in this genotype. In addition, the DEGs for TIR-NBS-LRR and heat shock proteins are positively activated. These results suggest that defense mechanisms against UV-B stress at high fluence rates are separate from the photomorphogenic responses utilized by plants to adapt to low-level UV light. Our study provides valuable information for deep understanding of UV-B stress defense mechanisms and for the development of resistant soybean genotypes that survive under high-intensity UV-B stress.

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Section: Discussionmentioning

confidence: 77%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Transcriptomic Profiling of Soybean in Response to High-Intensity UV-B Irradiation Reveals Stress Defense Signaling

et al. 2016

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“…Some isoforms are more markedly expressed in response to drought, cold or salt stress (Pokotylo et al, 2014). PI-PLC are involved in plant adaptation to drought, heat, and cold conditions, as shown by pharmacological or reverse genetic approaches (Pokotylo et al, 2014; Ruelland et al, in press). Recently, we showed that a basal level of PI-PLC activity controlled the expression of a number of genes in ACSC (Djafi et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Salicylic acid modulates levels of phosphoinositide dependent-phospholipase C substrates and products to remodel the Arabidopsis suspension cell transcriptome

et al. 2014

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Basal phosphoinositide-dependent phospholipase C (PI-PLC) activity controls gene expression in Arabidopsis suspension cells and seedlings. PI-PLC catalyzes the production of phosphorylated inositol and diacylglycerol (DAG) from phosphoinositides. It is not known how PI-PLC regulates the transcriptome although the action of DAG-kinase (DGK) on DAG immediately downstream from PI-PLC is responsible for some of the regulation. We previously established a list of genes whose expression is affected in the presence of PI-PLC inhibitors. Here this list of genes was used as a signature in similarity searches of curated plant hormone response transcriptome data. The strongest correlations obtained with the inhibited PI-PLC signature were with salicylic acid (SA) treatments. We confirm here that in Arabidopsis suspension cells SA treatment leads to an increase in phosphoinositides, then demonstrate that SA leads to a significant 20% decrease in phosphatidic acid, indicative of a decrease in PI-PLC products. Previous sets of microarray data were re-assessed. The SA response of one set of genes was dependent on phosphoinositides. Alterations in the levels of a second set of genes, mostly SA-repressed genes, could be related to decreases in PI-PLC products that occur in response to SA action. Together, the two groups of genes comprise at least 40% of all SA-responsive genes. Overall these two groups of genes are distinct in the functional categories of the proteins they encode, their promoter cis-elements and their regulation by DGK or phospholipase D. SA-regulated genes dependent on phosphoinositides are typical SA response genes while those with an SA response that is possibly dependent on PI-PLC products are less SA-specific. We propose a model in which SA inhibits PI-PLC activity and alters levels of PI-PLC products and substrates, thereby regulating gene expression divergently.

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“…Necrotrophs and hemibiotrophs, and at advanced stages of infection the biotrophs, produce several enzymes (elicitors), such as cutinases, xylanase, cellulases, pectin lyases, and laccases to break down the host cell wall, which releases DAMP (plant signal molecules) (Boller and Felix, 2009;Pendleton et al, 2014). The host damage releases membrane lipids that activate a cascade of downstream genes prompted by phospholipases (PLs): PL-A activate jasmonic acid (JA), PL-C activate ion channels, and PL-D activate enzymes to produce phosphatidic acid, which activates MAPKs and oxidative bursts through NADPH oxidase controlled by R RRP gene (Ruelland et al, 2015). Oligogalacturonides, the plant signal molecules released from the breakdown of pectins in plant cell wall by Botrytis cinerea trigger phytohormones leading to the production of NADPH oxidase (RRP) and callose (RRM) in Arabidopsis (Galletti et al, 2008;ºa zniewska et al, 2012).…”

Section: A Plant Receptor (Elrr and Err) Genes And Regulation Of Dowmentioning

confidence: 99%

Plant Innate Immune Response: Qualitative and Quantitative Resistance

Kushalappa

Yogendra

Karre

2016

Critical Reviews in Plant Sciences

156

103

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Plant diseases, caused by microbes, threaten world food, feed, and bioproduct security. Plant resistance has not been effectively deployed to improve resistance in plants for lack of understanding of biochemical mechanisms and genetic bedrock of resistance. With the advent of genome sequencing, the forward and reverse genetic approaches have enabled deciphering the riddle of resistance. Invading pathogens produce elicitors and effectors that are recognized by the host membrane-localized receptors, which in turn induce a cascade of downstream regulatory and resistance metabolite and protein biosynthetic genes (R) to produce resistance metabolites and proteins, which reduce pathogen advancement through their antimicrobial and cell wall enforcement properties. The resistance in plants to pathogen attack is expressed as reduced susceptibility, ranging from high susceptibility to hypersensitive response, the shades of gray. The hypersensitive response or cell death is considered as qualitative resistance, while the remainder of the reduced susceptibility is considered as quantitative resistance. The resistance is due to additive effects of several resistance metabolites and proteins, which are produced through a network of several hierarchies of plant R genes. Plants recognize the pathogen elicitors or receptors and then induce downstream genes to eventually produce resistance metabolites and proteins that suppress the pathogen advancement in plant. These resistance genes (R), against qualitative and quantitative resistance, can be identified in germplasm collections and replaced in commercial cultivars, if nonfunctional, based on genome editing to improve plant resistance.

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Role of phospholipid signalling in plant environmental responses

Cited by 109 publications

References 175 publications

Transcriptomic Profiling of Soybean in Response to High-Intensity UV-B Irradiation Reveals Stress Defense Signaling

Transcriptomic Profiling of Soybean in Response to High-Intensity UV-B Irradiation Reveals Stress Defense Signaling

Salicylic acid modulates levels of phosphoinositide dependent-phospholipase C substrates and products to remodel the Arabidopsis suspension cell transcriptome

Plant Innate Immune Response: Qualitative and Quantitative Resistance

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