NADPH oxidase-dependent H2O2 production is required for salt-induced antioxidant defense in Arabidopsis thaliana

Rejeb, Kilani Ben; Benzarti, Maâli; Debez, Ahmed; Bailly, Christophe; Savouré, Arnould; Abdelly, Chédly

doi:10.1016/j.jplph.2014.08.022

Cited by 104 publications

(69 citation statements)

References 63 publications

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“…Sugar beet therefore appears to adjust the cellular redox milieu to a lower level of oxidative stress in high NaCl conditions than under control conditions. This regulatory mechanism contrasts the response of other plant species that display salt stress-induced enhancement of ROS accumulation, such as maize (AbdElgawad et al , 2016), rice (Wutipraditkul et al , 2015) and Arabidopsis (Ben Rejeb et al , 2015). …”

Section: Discussionmentioning

confidence: 69%

Redox and Reactive Oxygen Species Network in Acclimation for Salinity Tolerance in Sugar Beet

Hossain

ElSayed

Moore

et al. 2017

Journal of Experimental Botany

105

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Section: Discussionmentioning

confidence: 69%

Redox and Reactive Oxygen Species Network in Acclimation for Salinity Tolerance in Sugar Beet

Hossain

ElSayed

Moore

et al. 2017

Journal of Experimental Botany

105

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“…The higher SOD activity observed in A/A25 plants under salinity, leading to H 2 O 2 production, could be the signal triggering the cascade of adaptive (genetic and physiological) responses (Bose et al, 2014, Rejeb et al, 2015. Recently, several researches have indicated that proline accumulation occurs in stressed plants and can be mediated by signaling molecules, including H 2 O 2 (e.g.…”

Section: Discussionmentioning

confidence: 99%

Salt-tolerant rootstock increases yield of pepper under salinity through maintenance of photosynthetic performance and sinks strength

Penella

Landi

Guidi

et al. 2016

Journal of Plant Physiology

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The performance of a salt-tolerant pepper (Capsicum annuum L.) accession (A25) utilized as a rootstock was assessed in two experiments. In a first field experiment under natural salinity conditions, we observed a larger amount of marketable fruit (+75%) and lower Blossom end Root incidence (-31%) plants, which had a constitutive enhanced root apparatus and 2.6-fold higher proline content under salinity, did not show alterations in photosynthesis and growth and MDA levels increased only slightly. Our results underline that salt tolerance in A/A25 grafted plants could be mediate by (I) the maintenance of root sink strength and (II) the markedly increased proline levels that could balance cell osmotic pressure thus protecting enzymatic stability from salttriggered damage.

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“…These data confirmed that elevated ROS levels in cells are required for actin remodeling in response to flg22. In support of this, we used pharmaceutical agents, such as diphenyleneiodonium (DPI; Wilkins et al, 2011;Ben Rejeb et al, 2015) to inhibit NADPH oxidase activity, or the ROS scavenger TEMPOL (Scott and Logan, 2008;Wilkins et al, 2011) to decrease ROS level in wild-type cells. We found that both treatments blocked the increase in actin filament abundance induced by flg22 in a dose-dependent manner (Supplemental Figs.…”

Section: Treatment With H 2 O 2 Mimics the Increase In Actin Filamentmentioning

confidence: 99%

Capping Protein Modulates Actin Remodeling in Response to Reactive Oxygen Species during Plant Innate Immunity

Cao

Staiger

2016

Plant Physiol.

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Plants perceive microbe-associated molecular patterns and damage-associated molecular patterns to activate innate immune signaling events, such as bursts of reactive oxygen species (ROS). The actin cytoskeleton remodels during the first 5 min of innate immune signaling in Arabidopsis (Arabidopsis thaliana) epidermal cells; however, the immune signals that impinge on actin cytoskeleton and its response regulators remain largely unknown. Here, we demonstrate that rapid actin remodeling upon elicitation with diverse microbe-associated molecular patterns and damage-associated molecular patterns represent a conserved plant immune response. Actin remodeling requires ROS generated by the defense-associated NADPH oxidase, RBOHD. Moreover, perception of flg22 by its cognate receptor complex triggers actin remodeling through the activation of RBOHDdependent ROS production. Our genetic studies reveal that the ubiquitous heterodimeric capping protein transduces ROS signaling to the actin cytoskeleton during innate immunity. Additionally, we uncover a negative feedback loop between actin remodeling and flg22-induced ROS production.

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NADPH oxidase-dependent H2O2 production is required for salt-induced antioxidant defense in Arabidopsis thaliana

Cited by 104 publications

References 63 publications

Redox and Reactive Oxygen Species Network in Acclimation for Salinity Tolerance in Sugar Beet

Redox and Reactive Oxygen Species Network in Acclimation for Salinity Tolerance in Sugar Beet

Salt-tolerant rootstock increases yield of pepper under salinity through maintenance of photosynthetic performance and sinks strength

Capping Protein Modulates Actin Remodeling in Response to Reactive Oxygen Species during Plant Innate Immunity

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