Extracellular ATP, nitric oxide and superoxide act coordinately to regulate hypocotyl growth in etiolated Arabidopsis seedlings

Tonón, Claudia Virginia; Terrile, María Cecilia; Iglesias, Marı́a José; Lamattina, Lorenzo; Casalongué, Claudia Anahí

doi:10.1016/j.jplph.2009.11.002

Cited by 53 publications

(50 citation statements)

References 35 publications

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“…All these morphological traits were restored by eATP and NO. 9 In this addendum, we show that growth and differentiation of root hairs in Arabidopsis provide a simple and suitable model to study mechanisms underlying the interconnection between eATP, NO and redox status. Here, we examined root hair growth of 5-day-old Arabidopsis seedlings grown in the presence of GSH, ATP or combinatorial treatments in darkness.…”

Section: Linking Signaling Pathways To Gain Understanding On the Regumentioning

confidence: 88%

“…Lately, we have described an interconnection between eATP, NO and redox system during hypocotyl elongation in etiolated Arabidopsis seedlings. 9 It was demonstrated that a fine-tuning of redox balance and endogenous NO level is associated to eATP action. (data not shown) suggesting that the recovery of root hair growth mediated by exogenous nucleotides is specific.…”

Section: Linking Signaling Pathways To Gain Understanding On the Regumentioning

confidence: 99%

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Extracellular ATP and nitric oxide signaling pathways regulate redox-dependent responses associated to root hair growth in etiolated Arabidopsis seedlings

Terrile

Tonón

Iglesias

et al. 2010

Plant Signaling & Behavior

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Addendum to: Tonón C, Terrile MC, Iglesias MJ, Lamattina L, Casalongué C. Extracellular ATP, nitric oxide and superoxide act coordinately to regulate hypocotyl growth in etiolated Arabidopsis seedlings. J Plant Physiol 2010; 167:540-546; PMID: 19962212; DOI: 10.1016 DOI: 10. /j.jplph.2009. E xtracellular ATP (eATP) and nitric oxide (NO) have emerged as crucial players in plant development, stress responses and cell viability. Glutathione (GSH) is an abundant reducing agent with proposed roles in plant growth, development and stress physiology. In a recent publication, we demonstrated that eATP and NO restore hypocotyl elongation of etiolated Arabidopsis seedlings treated with GSH. Here it is reported that exogenous ATP also restores root hair growth suggesting a role for ATP and NO in the regulation of redox balance associated to specific processes of plant morphogenesis. A tentative model integrating redox-, eATPand NO-signaling pathways during root hair growth in Arabidopsis seedlings is presented. Linking Signaling Pathways to Gain Understanding on the Regulation of Morphological Processes in PlantsThe first living organisms evolved under reducing conditions a long time before the environment became oxidizing due to oxygen produced by photosynthesis. As a consequence, the most fundamental signaling pathways were initially adapted to reducing conditions. Plants, as sessile organisms have taken advantage of the regulatory mechanisms evolved on a changing redox-status and nowadays they are strongly dependent of environmental redox conditions. An efficient redox control together with other signaling mechanisms cooperates to maintain the steady-state redox homeostasis in plant cell. In this scenario, two small signaling molecules such as ATP and NO have a very ancient origin and are involved in cell redox physiology. 1,2 ATP and NO play diverse biological functions in phylogenetically distant species. Intracellular ATP is the major source of energy for cellular reactions. However, ATP also acts as a signaling molecule at the extracellular face of the plasma membrane in animals as well as in plants. 3 NO is an important regulatory molecule in eukaryotes. Several roles have been attributed to extracellular ATP (eATP) and NO in plants, ranging from cell viability to pathogen defence and cell death.2-4 NO production stimulated by eATP was shown in tomato suspension cells, 5 hairy roots of Salvia miltiorrhiza 6 as well as in algae. 7 Reichler et al. 8 showed that the intersection of eATP signaling and NO via the cellular messenger cGMP regulates pollen germination and pollen tube growth in Arabidopsis. Thus, the biochemical and molecular mechanisms underlying eATP and NO signaling pathways in plants have just begun to emerge. Lately, we have described an interconnection between eATP, NO and redox system during hypocotyl elongation in etiolated Arabidopsis seedlings. 9It was demonstrated that a fine-tuning of redox balance and endogenous NO level is associated to eATP action. Therefore, these findings open a new w...

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Section: Linking Signaling Pathways To Gain Understanding On the Regumentioning

confidence: 88%

Section: Linking Signaling Pathways To Gain Understanding On the Regumentioning

confidence: 99%

Extracellular ATP and nitric oxide signaling pathways regulate redox-dependent responses associated to root hair growth in etiolated Arabidopsis seedlings

Terrile

Tonón

Iglesias

et al. 2010

Plant Signaling & Behavior

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“…Extracellular purine nucleotides have been shown to be involved in the regulation of plant cell viability, membrane permeability, immunity, symbiosis, stress responses, and growth (Lew and Dearnaley, 2000;Tang et al, 2003;Chivasa et al, 2005Chivasa et al, , 2009Kim et al, 2006Kim et al, , 2009Roux and Steinebrunner, 2007;Wu et al, 2007;Riewe et al, 2008a;Wu and Wu, 2008;Yi et al, 2008;Demidchik et al, 2009;Govindarajulu et al, 2009;Kim et al, 2009;Clark et al, 2010aClark et al, , 2010bTanaka et al, 2010aTanaka et al, , 2010bTerrile et al, 2010;Tonó n et al, 2010). Purine nucleotide release from plant cells may occur through wounding, exocytosis, or through the activity of plasma membrane (PM) ATP-binding cassette transporters (Thomas et al, 2000;Kim et al, 2006).…”

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“…Manipulation of ecto-apyrase levels results in abnormal growth in Arabidopsis (Arabidopsis thaliana), cotton (Gossypium hirsutum), and potato (Solanum tuberosum; Wu et al, 2007;Riewe et al, 2008a;Clark et al, 2010aClark et al, , 2010b while nodulation by Bradyrhizobium japonicum is impaired in ecto-apyrase-deficient soybean (Glycine max; Govindarajulu et al, 2009). Current models suggest that poise of the cell's state between death, stress adaptation, and growth involves signaling governed by the level of extracellular ATP (Chivasa et al, 2005Roux and Steinebrunner, 2007;Wu et al, 2007;Wu and Wu, 2008;Kim et al, 2009;Clark et al, 2010aClark et al, , 2010bTerrile et al, 2010;Tonó n et al, 2010).…”

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confidence: 99%

“…Nitric oxide is now also established as a product of extracellular purine nucleotide perception. Nitric oxide evolution by plants has been observed on application of extracellular ATP or extracellular ADP and linked to influx of Ca 2+ or production of phosphatidic acid (Foresi et al, 2007;Wu and Wu, 2008;Reichler et al, 2009;Clark et al, 2010b;Sueldo et al, 2010;Tonó n et al, 2010).…”

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Receptor-Like Activity Evoked by Extracellular ADP in Arabidopsis Root Epidermal Plasma Membrane

et al. 2011

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Extracellular purine nucleotides are implicated in the control of plant development and stress responses. While extracellular ATP is known to activate transcriptional pathways via plasma membrane (PM) NADPH oxidase and calcium channel activation, very little is known about signal transduction by extracellular ADP. Here, extracellular ADP was found to activate net Ca 2+ influx in roots of Arabidopsis (Arabidopsis thaliana) and transiently elevate cytosolic free Ca 2+ in root epidermal protoplasts. An inward Ca 2+ -permeable conductance in root epidermal PM was activated within 1 s of ADP application and repeated application evoked a smaller current. Such response speed and densitization are consistent with operation of equivalents to animal ionotropic purine receptors, although to date no equivalent genes for such receptors have been identified in higher plants. In contrast to ATP, extracellular ADP did not evoke accumulation of intracellular reactive oxygen species. While high concentrations of ATP caused net Ca 2+ efflux from roots, equivalent concentrations of ADP caused net influx. Overall the results point to a discrete ADP signaling pathway, reliant on receptor-like activity at the PM. Extracellular purine nucleotides have been shown to be involved in the regulation of plant cell viability, membrane permeability, immunity, symbiosis, stress responses, and growth

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Cross‐talk of Reactive Oxygen Species and Nitric Oxide in Various Processes of Plant Development

Kolbert

Feigl

2017

Reactive Oxygen Species in Plants

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What does the 'x' stand for here? AQ2 Do you mean Kim et al. 2006 as listed in the References section? AQ3 Pls define 'PTM' here. AQ4 Explain/define this? AQ5 Only 2009 listed for these authors; check? AQ6 Pls check my 'key' to abbreviations and insert definition for 'PA'. AQ7 Spelling: should be 'phytoglobin'? AQ8 Check my expansion of ABA here. AQ9 In what sense 'intensification'? do you mean 'upregulation'? AQ10 Do you mean Desel & Krupinska 2005 as listed? AQ11 Sense? Do you mean 'suggesting' or 'evidencing' maybe? AQ12 Sense not clear; pls check. AQ13 Do you mean Tsukagoshi et al. 2010 as listed? AQ14 Pls define/gloss 'PIN' here. AQ15 Sense: do you mean 'inactivating NADPH oxidase'? AQ16 Check text as edited. AQ17 Sense not clear; pls rephrase. AQ18 Do you mean 'ripened'? AQ19 Pls can you supply a page range for the section/chapter cited? AQ20 Pls supply names and initials of editors for this book if possible.

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Extracellular ATP, nitric oxide and superoxide act coordinately to regulate hypocotyl growth in etiolated Arabidopsis seedlings

Cited by 53 publications

References 35 publications

Extracellular ATP and nitric oxide signaling pathways regulate redox-dependent responses associated to root hair growth in etiolated Arabidopsis seedlings

Extracellular ATP and nitric oxide signaling pathways regulate redox-dependent responses associated to root hair growth in etiolated Arabidopsis seedlings

Receptor-Like Activity Evoked by Extracellular ADP in Arabidopsis Root Epidermal Plasma Membrane

Cross‐talk of Reactive Oxygen Species and Nitric Oxide in Various Processes of Plant Development

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