Shedding light on the chloroplast as a remote control of nuclear gene expression

Herz, Micaela Amalia Godoy; Kornblihtt, Alberto R.; Barta, Andrea; Kalyna, Maria; Petrillo, Ezequiel

doi:10.4161/15592324.2014.976150

Cited by 7 publications

(2 citation statements)

References 43 publications

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“…Earlier studies have suggested that the redox state of plastoquinone controls the rate of transcription of the chloroplast genes encoding reaction-center apoproteins of photosystem I and photosystem II ( Pfannschmidt et al, 1999 , 2009 ). Recently, it was reported that chloroplasts are able to sense light conditions and generate a remote control to modulate the nuclear gene expression to face the changing environment ( Koussevitzky et al, 2007 ; Pogson et al, 2008 ; Pfannschmidt et al, 2009 ; Godoy Herz et al, 2014 ). As a retrograde signaling pathway, the redox state of components of the photosynthetic electron transport chain can sense the changes in photosysnthetic activity and in turn affect the nuclear gene expression ( Fey et al, 2005 ; Nott et al, 2006 ; Godoy Herz et al, 2014 ).…”

Section: Reactive Oxygen Species At the Cross-roadmentioning

confidence: 99%

“…Recently, it was reported that chloroplasts are able to sense light conditions and generate a remote control to modulate the nuclear gene expression to face the changing environment ( Koussevitzky et al, 2007 ; Pogson et al, 2008 ; Pfannschmidt et al, 2009 ; Godoy Herz et al, 2014 ). As a retrograde signaling pathway, the redox state of components of the photosynthetic electron transport chain can sense the changes in photosysnthetic activity and in turn affect the nuclear gene expression ( Fey et al, 2005 ; Nott et al, 2006 ; Godoy Herz et al, 2014 ). The plastidial metabolite, methylerythritol cyclodiphosphate (MEcPP), was found to regulate the expression of nuclear stress-response genes through a retrograde signal from the chloroplast to the nucleus ( Xiao et al, 2012 ).…”

Section: Reactive Oxygen Species At the Cross-roadmentioning

confidence: 99%

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Global Plant Stress Signaling: Reactive Oxygen Species at the Cross-Road

2016

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Current technologies have changed biology into a data-intensive field and significantly increased our understanding of signal transduction pathways in plants. However, global defense signaling networks in plants have not been established yet. Considering the apparent intricate nature of signaling mechanisms in plants (due to their sessile nature), studying the points at which different signaling pathways converge, rather than the branches, represents a good start to unravel global plant signaling networks. In this regard, growing evidence shows that the generation of reactive oxygen species (ROS) is one of the most common plant responses to different stresses, representing a point at which various signaling pathways come together. In this review, the complex nature of plant stress signaling networks will be discussed. An emphasis on different signaling players with a specific attention to ROS as the primary source of the signaling battery in plants will be presented. The interactions between ROS and other signaling components, e.g., calcium, redox homeostasis, membranes, G-proteins, MAPKs, plant hormones, and transcription factors will be assessed. A better understanding of the vital roles ROS are playing in plant signaling would help innovate new strategies to improve plant productivity under the circumstances of the increasing severity of environmental conditions and the high demand of food and energy worldwide.

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