Oxidative and nitrosative signaling in plants

Molassiotis, Athanassios; Fotopoulos, Vasileios

doi:10.4161/psb.6.2.14878

Cited by 121 publications

(74 citation statements)

References 65 publications

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“…The main physiological function of ABA during stress is to promote stomatal closure, minimize transpiration, and hence conserve water in the cells. ROS and reactive nitrogen species (RNS) are almost always the earliest signals in abiotic stresses (Molassiotis and Fotopoulos, 2011). ROS and RNS aid in the activation of a coordinated network of responses, among which those for the nitrosative effects of RNS are less documented (Cramer et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Metabolic and molecular-genetic regulation of proline signaling and itscross-talk with major effectors mediates abiotic stress tolerance in plants

Roychoudhury¹,

Banerjee²,

Lahiri³

2015

Turk J Bot

107

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Proline (Pro) accumulation is a common response of several plant species to combat abiotic stresses. Under stress conditions, Pro acts as an excellent compatible solute in the plant system, participating in the alleviation of stress sensitivity. Though the metabolic pathways associated with Pro are well studied, parts of its regulatory cascades are still not properly known. It has also been conjectured that epigenetic modifications regulate Pro metabolism during abiotic stress. Apart from Pro, the plant abiotic stress responses are essentially mediated by multiple effectors. Hence, proper analysis of the cross-talks of Pro with the other components of the abiotic stress response has turned out to be mandatory in order to design multistress-tolerant transgenic lines. Highlighting the relation between Pro and seed germination is also essential to understand the notion behind plant susceptibility and survival during stress. Generally, Pro has a universal mechanism to generate abiotic stress tolerance through stabilization of structural components, enzyme structures, and regulation of osmotic adjustments. The success achieved through recent transgenic approaches leading to more accumulation of Pro in the sink has also been focused on in the present review.

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Section: Introductionmentioning

confidence: 99%

Metabolic and molecular-genetic regulation of proline signaling and itscross-talk with major effectors mediates abiotic stress tolerance in plants

Roychoudhury¹,

Banerjee²,

Lahiri³

2015

Turk J Bot

107

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“…Over the past years reactive nitrogen species (RNS) have emerged as signal molecules involved in a number of important physiological processes in plants in a similar fashion to reactive oxygen species (ROS) [2][3][4], although knowledge on the outcomes of oxidative and nitrosative signaling is still unclear [5]. It is also established that RNS, along with ROS, are key players in the plant's response to a multitude of environmental stimuli such as salinity, drought, heavy metals, and high light intensity [6,7].…”

Section: Introductionmentioning

confidence: 99%

Role of Nitrosative Signaling in Response to Changing Climates

Filippou

Antoniou

Fotopoulos

2013

Climate Change and Plant Abiotic Stress Tolerance

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The increased frequency and extent of global climatic changes and associated extreme environmental events remarkably influence plant growth and development, ultimately affecting crop productivity throughout the world. In addition to the well-documented enhanced accumulation of reactive oxygen species following abiotic stress factors, a large amount of research carried out during the last decade implicates the participation of nitric oxide and other reactive nitrogen species (RNS) leading to nitrosative stress in the plant's responses to environmental stimuli. The imposition of abiotic stresses is known to cause overproduction of RNS, which ultimately inflicts a secondary oxidative and nitrosative stress, leading to various signaling responses. However, our understanding of nitrosative signaling remains poorly understood. The present chapter represents an up-to-date overview of the literature in terms of the important role played by nitrosative signaling in model as well as crop plants in response to increasingly changing climates.

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“…They appear to produce NO by two different pathways ( Fig. 5.3) (Dordas et al 2003(Dordas et al , 2004Corpas et al 2004Corpas et al , 2009Chaki et al 2009a, b;Molassiotis and Fotopoulos 2011) …”

Section: Sources Of Nitric Oxidementioning

confidence: 99%

“…S-nitrosylation is a key mechanism for NO signalling in animals but its role in plant signalling is still unknown. The Hb2 has a lower affinity for oxygen and are better candidates to produce NO from nitrite at low oxygen levels (Arredondo-Peter et al 1997;Taylor et al 1994;Trevaskis et al 1997;Dordas et al 2003Dordas et al , 2004Perazzolli et al 2004;Molassiotis and Fotopoulos 2011;Yu et al 2012). …”

Section: And Nomentioning

confidence: 99%

“…Under abiotic stresses, l-arginine-dependent NO synthase (NOS) and/or nitrate reductase (NR) generated NO which can react with reduced glutathione (GSH) in the presence of O 2 to GSNO. This metabolite is converted by GSNO reductase (GSNOR) into oxidized glutathione (GSSG) and NH 3 (Crawford 2006;Corpas et al 2004Corpas et al , 2009Chaki et al 2009a, b;Heikal et al 2009;Molassiotis and Fotopoulos 2011;Yu et al 2012). …”

Section: Nitric Oxide and Reactive Nitrogen Speciesmentioning

confidence: 99%

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