Oxylipins in plastidial retrograde signaling

Muñoz, Paula; Munné‐Bosch, Sergi

doi:10.1016/j.redox.2020.101717

Cited by 28 publications

(20 citation statements)

References 23 publications

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“…PYP-like sensor domain proteins have been identified in a wide range of species and often act as oxygen or redox sensors ( 83 ). Extensive work for higher plant chloroplasts identified multiple retrograde signaling pathways involving, for example, apocarotenoids, oxylipins, or 3′-phosphoadenosine 5′-phosphosulfate ( 84 , 85 , 86 , 87 ). It is likely that multiple retrograde signaling pathways also operate in green algae such as Chlamydomonas ( 88 ).…”

Section: Clp In the Proteostasis Network Retrograde Signaling And Tmentioning

confidence: 99%

Structure, function, and substrates of Clp AAA+ protease systems in cyanobacteria, plastids, and apicoplasts: A comparative analysis

Bouchnak

Wijk

2021

Journal of Biological Chemistry

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A TPases A ssociated with diverse cellular A ctivities (AAA+) are a superfamily of proteins that typically assemble into hexameric rings. These proteins contain AAA+ domains with two canonical motifs (Walker A and B) that bind and hydrolyze ATP, allowing them to perform a wide variety of different functions. For example, AAA+ proteins play a prominent role in cellular proteostasis by controlling biogenesis, folding, trafficking, and degradation of proteins present within the cell. Several central proteolytic systems ( e.g. , Clp, Deg, FtsH, Lon, 26S proteasome) use AAA+ domains or AAA+ proteins to unfold protein substrates (using energy from ATP hydrolysis) to make them accessible for degradation. This allows AAA+ protease systems to degrade aggregates and large proteins, as well as smaller proteins, and feed them as linearized molecules into a protease chamber. This review provides an up-to-date and a comparative overview of the essential Clp AAA+ protease systems in Cyanobacteria ( e.g ., Synechocystis spp), plastids of photosynthetic eukaryotes ( e.g. , Arabidopsis , Chlamydomonas ), and apicoplasts in the nonphotosynthetic apicomplexan pathogen Plasmodium falciparum . Recent progress and breakthroughs in identifying Clp protease structures, substrates, substrate adaptors ( e.g ., NblA/B, ClpS, ClpF), and degrons are highlighted. We comment on the physiological importance of Clp activity, including plastid biogenesis, proteostasis, the chloroplast Protein Unfolding Response, and metabolism, across these diverse lineages. Outstanding questions as well as research opportunities and priorities to better understand the essential role of Clp systems in cellular proteostasis are discussed.

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Section: Clp In the Proteostasis Network Retrograde Signaling And Tmentioning

confidence: 99%

Structure, function, and substrates of Clp AAA+ protease systems in cyanobacteria, plastids, and apicoplasts: A comparative analysis

Bouchnak

Wijk

2021

Journal of Biological Chemistry

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“…This degradation induces the expression of MYC transcription factors that activate the jasmonate activated genes. However, still the mechanism by which oxylipin carries out the retrograde signal from plastids is largely unknown [53].…”

Section: Signaling By Reactive Electrophile Species Created By Lipid Oxidation Induced By Rosmentioning

confidence: 99%

Role of Reactive Oxygen Species in the Initiation of Plant Retrograde Signaling

Trillo-Hern醤dez¹,

Sierra²,

Tiznado-Hern醤dez³

2022

Phyton

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The interaction between the nucleus and the different organelles is important in the physiology of the plant. Reactive oxygen species (ROS) are a by-product of the oxidation of organic molecules to obtain energy by the need to carry out the electron transfer between the different enzymatic complexes. However, they also have a role in the generation of what is known as retrograde signaling. This signal comes from the different organelles in which the oxidation of molecules or the electron transference is taking place such as mitochondria and chloroplasts. Furthermore, ROS can also induce the release of signals from the apoplast. It seems that these signals plays a role communicating to the nucleus the current status of the different parts of the plant cell to induce a changes in gene expression. In this review, the molecular mechanism of ROS retrograde signaling is described.

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“…Interestingly, treatment of plants and/or algae with moderate level of oxylipins/RES/RCS improved their tolerance toward stresses (e.g., light and heat) (Roach et al, 2018;Monte et al, 2020). Consequently, there is an increasing appraisal for oxylipins/RES/RCS to be considered also as players in ROS/organelle retrograde signaling; although conclusive evidence is still required (Farmer and Mueller, 2013;Alché, 2019;Mano et al, 2019;Muñoz and Munné-Bosch, 2020).…”

Section: Chloroplastic Ros-induced Retrograde Signalingmentioning

confidence: 99%

Reactive oxygen species and organellar signaling

Phua

Smet

Remacle

et al. 2021

Journal of Experimental Botany

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The evolution of photosynthesis and its associated metabolic pathways has been crucial to the successful establishment of plants, but has also challenged plant cells in the form of reactive oxygen species (ROS) production. Intriguingly, multiple forms of ROS are generated in virtually every plant cell compartment through diverse pathways. As a result, a sophisticated network of ROS detoxification and signaling that is simultaneously tailored to individual organelles and safeguards the entire cell is necessary. Here we take an organelle-centric view on the principal sources and sinks of ROS across the plant cell and give insights into the ROS-induced organelle-to-nucleus retrograde signaling pathways needed for operational readjustments during environmental stresses.

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Oxylipins in plastidial retrograde signaling

Cited by 28 publications

References 23 publications

Structure, function, and substrates of Clp AAA+ protease systems in cyanobacteria, plastids, and apicoplasts: A comparative analysis

Structure, function, and substrates of Clp AAA+ protease systems in cyanobacteria, plastids, and apicoplasts: A comparative analysis

Role of Reactive Oxygen Species in the Initiation of Plant Retrograde Signaling

Reactive oxygen species and organellar signaling

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