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

Kolbert, Zsuzsanna; Feigl, Gábor

doi:10.1002/9781119324928.ch14

Cited by 11 publications

(11 citation statements)

References 208 publications

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“…Interestingly, SNP treatment significantly decreased the H 2 O 2 concentration under pH 7.5 condition (Fig. 5a, b), which is in accordance with the scavenging effect of NO on H 2 O 2 (Kolbert & Feigl, 2017). A cross section of the root tips further indicated that the alkaline induced H 2 O 2 mainly restricted in the exodermis and steel, where the NO production was significantly decreased (Fig.…”

Section: Snp Inhibited the Expression Of Fe Deficiency Induced Genessupporting

confidence: 78%

Inhibition of nitric oxide production under alkaline condition regulates iron homeostasis

Chen

Deng

et al. 2020

Preprint

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Rice is one of the most susceptible plant to iron (Fe) deficiency under neutral and alkaline conditions. Alkaline stress induces H2O2 production and increases the deposition of Fe on roots surface, which causes leaf chlorosis and Fe deficiency in rice. Gene chip and qRT-PCR analysis indicated that the expression of nitrate reductase (NR) genes were down-regulated by alkaline treatment, which resulted in significantly decreased nitrate activities and nitric oxide (NO) production in epidermis and stele, where the H2O2 was accumulated. In contrast, treatment with sodium nitroprusside (SNP), a NO donor, strongly alleviates alkaline-induced Fe deficiency by limiting Fe plaque formation. Increasing the NO signal significantly reduces the accumulation of H2O2 and lignin barrier, but enhances phenolic acid secretion in root epidermis and stele under alkaline stress. The secreted phenolic acid effectively mobilized the apoplast Fe and increased Fe uptake in root, thus which alleviate the Fe deficiency response and down-regulate expression of Fe uptake genes under alkaline condition. In conclusion, alkaline stress inhibits the NR activity and NO production in roots of rice, which plays a vital role in mobilizing the apoplast Fe by regulation of H2O2 and phenolic acids concentrations.

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Section: Snp Inhibited the Expression Of Fe Deficiency Induced Genessupporting

confidence: 78%

Inhibition of nitric oxide production under alkaline condition regulates iron homeostasis

Chen

Deng

et al. 2020

Preprint

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“…The physiological effects of NO can be categorized in a very similar way to that of SLs. Nitric oxide regulates growth processes at stages of seed development, vegetative and generative development like pollen tube growth, seed germination, root growth, gravitropism, flowering, fruit ripening (reviewed in Kolbert and Feigl ). Furthermore, NO participates also in abiotic stress responses of plants.…”

Section: Nitric Oxide the Multifunctional Gaseous Plant Signalmentioning

confidence: 99%

Strigolactone‐nitric oxide interplay in plants: The story has just begun

Kolbert

2018

Physiologia Plantarum

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Both strigolactones (SLs) and nitric oxide (NO) are regulatory signals with diverse roles during plant development and stress responses. This review aims to discuss the so far available data regarding SLs-NO interplay in plant systems. The majority of the few articles dealing with SL-NO interplay focuses on the root system and it seems that NO can be an upstream negative regulator of SL biosynthesis or an upstream positive regulator of SL signaling depending on the nutrient supply. From the so far published results it is clear that NO modifies the activity of target proteins involved in SL biosynthesis or signaling which may be a physiologically relevant interaction. Therefore, in silico analysis of NO-dependent posttranslational modifications in SL-related proteins was performed using computational prediction tools and putative NO-target proteins were specified. The picture is presumably more complicated, since also SL is able to modify NO levels. As a confirmation, author detected NO levels in different organs of max1-1 and max2-1 Arabidopsis and compared to the wild-type these mutants showed enhanced NO levels in their root tips indicating the negative effect of endogenous SLs on NO metabolism. Exogenous SL analogue-triggered NO production seems to contradict the results of the genetic study, which is an inconsistency should be taken into consideration in the future. In the coming years, the link between SL and NO signaling in further physiological processes should be examined and the possibilities of NO-dependent posttranslational modifications of SL biosynthetic and signaling proteins should be looked more closely.

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“…It is well demonstrated that there is a crosstalk of ROS and NO in many developmental processes [ 63 ], including the establishment of root architecture [ 49 ]. We tested, therefore, whether this crosstalk operates in the At crk5-1 mutant roots.…”

Section: Resultsmentioning

confidence: 99%

“…PQ-generated O 2 •− and H 2 O 2 seem to positively regulate NO production while ROS downregulate the NO level during the regulation of gravitropic bending. The complex interplay of ROS and NO controlling each other’s homeostasis is a general theme in plant physiology and development [ 44 , 63 , 75 , 76 , 77 ]. It is also well accepted that auxin has an upstream role regulating the ROS and NO interplay in plant roots [ 43 , 44 ].…”

Section: Discussionmentioning

confidence: 99%

The AtCRK5 Protein Kinase Is Required to Maintain the ROS NO Balance Affecting the PIN2-Mediated Root Gravitropic Response in Arabidopsis

Csépló

Zsigmond

Andrási

et al. 2021

IJMS

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The Arabidopsis AtCRK5 protein kinase is involved in the establishment of the proper auxin gradient in many developmental processes. Among others, the Atcrk5-1 mutant was reported to exhibit a delayed gravitropic response via compromised PIN2-mediated auxin transport at the root tip. Here, we report that this phenotype correlates with lower superoxide anion (O2•−) and hydrogen peroxide (H2O2) levels but a higher nitric oxide (NO) content in the mutant root tips in comparison to the wild type (AtCol-0). The oxidative stress inducer paraquat (PQ) triggering formation of O2•− (and consequently, H2O2) was able to rescue the gravitropic response of Atcrk5-1 roots. The direct application of H2O2 had the same effect. Under gravistimulation, correct auxin distribution was restored (at least partially) by PQ or H2O2 treatment in the mutant root tips. In agreement, the redistribution of the PIN2 auxin efflux carrier was similar in the gravistimulated PQ-treated mutant and untreated wild type roots. It was also found that PQ-treatment decreased the endogenous NO level at the root tip to normal levels. Furthermore, the mutant phenotype could be reverted by direct manipulation of the endogenous NO level using an NO scavenger (cPTIO). The potential involvement of AtCRK5 protein kinase in the control of auxin-ROS-NO-PIN2-auxin regulatory loop is discussed.

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

Cited by 11 publications

References 208 publications

Inhibition of nitric oxide production under alkaline condition regulates iron homeostasis

Inhibition of nitric oxide production under alkaline condition regulates iron homeostasis

Strigolactone‐nitric oxide interplay in plants: The story has just begun

The AtCRK5 Protein Kinase Is Required to Maintain the ROS NO Balance Affecting the PIN2-Mediated Root Gravitropic Response in Arabidopsis

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