Linking pattern recognition and salicylic acid responses in <i>Arabidopsis</i> through ACCELERATED CELL DEATH6 and receptors

Tateda, Chika; Zhang, Zhongqin; Greenberg, Jean T.

doi:10.1080/15592324.2015.1010912

Cited by 13 publications

(11 citation statements)

References 27 publications

(29 reference statements)

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“…c2 (Salleh et al, 2012) and is reported to confer tolerance to oxidative stress in yeast (Mowla et al, 2006). ACD6 and SYP122 are additional components of the salicylic acid-signaling network initiated during defense (Lu et al, 2003;Zhang et al, 2007Zhang et al, , 2008Tateda et al, 2015). Interestingly, both WRKY53 and SAG21 were also found to be up-regulated in trol mutants (Juri c et al, 2009).…”

Section: Oxidative Stress O 2 C2mentioning

confidence: 99%

Ferredoxin:NADP(H) Oxidoreductase Abundance and Location Influences Redox Poise and Stress Tolerance

Kozuleva

Goss²,

Twachtmann³

et al. 2016

Plant Physiol.

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In linear photosynthetic electron transport, ferredoxin:NADP(H) oxidoreductase (FNR) transfers electrons from ferredoxin (Fd) to NADP Both NADPH and reduced Fd (Fd) are required for reductive assimilation and light/dark activation/deactivation of enzymes. FNR is therefore a hub, connecting photosynthetic electron transport to chloroplast redox metabolism. A correlation between FNR content and tolerance to oxidative stress is well established, although the precise mechanism remains unclear. We investigated the impact of altered FNR content and localization on electron transport and superoxide radical evolution in isolated thylakoids, and probed resulting changes in redox homeostasis, expression of oxidative stress markers, and tolerance to high light in planta. Our data indicate that the ratio of Fd to FNR is critical, with either too much or too little FNR potentially leading to increased superoxide production, and perception of oxidative stress at the level of gene transcription. In FNR overexpressing plants, which show more NADP(H) and glutathione pools, improved tolerance to high-light stress indicates that disturbance of chloroplast redox poise and increased free radical generation may help "prime" the plant and induce protective mechanisms. In fnr1 knock-outs, the NADP(H) and glutathione pools are more oxidized relative to the wild type, and the photoprotective effect is absent despite perception of oxidative stress at the level of gene transcription.

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Section: Oxidative Stress O 2 C2mentioning

confidence: 99%

Ferredoxin:NADP(H) Oxidoreductase Abundance and Location Influences Redox Poise and Stress Tolerance

Kozuleva

Goss²,

Twachtmann³

et al. 2016

Plant Physiol.

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“…Enhanced PAMP responses and SA signalling correlated with a protein accumulation of PRRs, such as FLS2, BAK1, CERK1, or ERF in microsomal fractions (Tateda et al, ; Tateda, Zhang, & Greenberg, ). Priming in chemically induced resistance caused systemic MPK3 and MPK6 gene expression as well as protein accumulation of the inactive (unphosphorylated) kinase form of MPK3 and MPK6 (Beckers et al, ).…”

Section: Systemic Sar Manifestationmentioning

confidence: 99%

Protein kinase‐mediated signalling in priming: Immune signal initiation, propagation, and establishment of long‐term pathogen resistance in plants

Hake

Romeis

2018

Plant Cell & Environment

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"Priming" in plant phytopathology describes a phenomenon where the "experience" of primary infection by microbial pathogens leads to enhanced and beneficial protection of the plant against secondary infection. The plant is able to establish an immune memory, a state of systemic acquired resistance (SAR), in which the information of "having been attacked" is integrated with the action of "being prepared to defend when it happens again." Accordingly, primed plants are often characterized by faster and stronger activation of immune reactions that ultimately result in a reduction of pathogen spread and growth. Prerequisites for SAR are (a) the initiation of immune signalling subsequent to pathogen recognition, (b) a rapid defence signal propagation from a primary infected local site to uninfected distal parts of the plant, and (c) a switch into an immune signal-dependent establishment and subsequent long-lasting maintenance of phytohormone salicylic acid-based systemic immunity. Here, we provide a summary on protein kinases that contribute to these three conceptual aspects of "priming" in plant phytopathology, complemented by data addressing the role of protein kinases crucial for immune signal initiation also for signal propagation and SAR.

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“…acd6-1 and bda1-17D are both gain-of-function mutations located in the transmembrane regions, which cause spontaneous cell death and constitutive defense responses. ACD6 positively regulates the abundance of several PRRs (Tateda et al, 2015). It likely functions as a critical regulator of PTI.…”

Section: Autoimmunity Caused By Mutations In Other Types Of Proteinmentioning

confidence: 99%

Mighty Dwarfs: Arabidopsis Autoimmune Mutants and Their Usages in Genetic Dissection of Plant Immunity

2016

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Plants lack the adaptive immune system possessed by mammals. Instead they rely on innate immunity to defend against pathogen attacks. Genomes of higher plants encode a large number of plant immune receptors belonging to different protein families, which are involved in the detection of pathogens and activation of downstream defense pathways. Plant immunity is tightly controlled to avoid activation of defense responses in the absence of pathogens, as failure to do so can lead to autoimmunity that compromises plant growth and development. Many autoimmune mutants have been reported, most of which are associated with dwarfism and often spontaneous cell death. In this review, we summarize previously reported Arabidopsis autoimmune mutants, categorizing them based on their functional groups. We also discuss how their obvious morphological phenotypes make them ideal tools for epistatic analysis and suppressor screens, and summarize genetic screens that have been carried out in various autoimmune mutant backgrounds.

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Linking pattern recognition and salicylic acid responses in Arabidopsis through ACCELERATED CELL DEATH6 and receptors

Cited by 13 publications

References 27 publications

Ferredoxin:NADP(H) Oxidoreductase Abundance and Location Influences Redox Poise and Stress Tolerance

Ferredoxin:NADP(H) Oxidoreductase Abundance and Location Influences Redox Poise and Stress Tolerance

Protein kinase‐mediated signalling in priming: Immune signal initiation, propagation, and establishment of long‐term pathogen resistance in plants

Mighty Dwarfs: Arabidopsis Autoimmune Mutants and Their Usages in Genetic Dissection of Plant Immunity

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