Iron Deficiency-Induced Secretion of Phenolics Facilitates the Reutilization of Root Apoplastic Iron in Red Clover

Jin, Chong; You, Guang Yi; He, Yongjun; Tang, Caixian; Wu, Ping; Zheng, Shao Jian

doi:10.1104/pp.107.095794

Cited by 255 publications

(212 citation statements)

References 26 publications

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“…This leaves other possibilities open for the fate of the increased levels of phenolic compounds. Reutilization of apoplasmic Fe from cell walls by secreted phenolics, as reported by Jin et al (2007), represents a possible function.…”

Section: Fe Deficiency Induces the Phenylpropanoid Pathwaymentioning

confidence: 99%

“…Secretion of phenolic compounds in response to Fe deficiency has been reported for a variety of strategy I species and is thought to contribute directly or indirectly to the acquisition of Fe by chelating/reducing Fe or by affecting the microflora in the rhizosphere. Recently, this process was shown to be crucial for the reutilization of root apoplastic Fe (Jin et al, 2007). In Arabidopsis, several genes in the general phenylpropanoid pathway and genes involved in the biosynthesis of coumarins are induced upon Fe deficiency, which may be indicative for the accumulation and/or secretion of phenolic compounds (Yang et al, 2010).…”

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confidence: 99%

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iTRAQ Protein Profile Analysis of Arabidopsis Roots Reveals New Aspects Critical for Iron Homeostasis

et al. 2010

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Iron (Fe) deficiency is a major constraint for plant growth and affects the quality of edible plant parts. To investigate the mechanisms underlying Fe homeostasis in plants, Fe deficiency-induced changes in the protein profile of Arabidopsis (Arabidopsis thaliana) roots were comprehensively analyzed using iTRAQ (Isobaric Tag for Relative and Absolute Quantification) differential liquid chromatography-tandem mass spectrometry on a LTQ-Orbitrap with high-energy collision dissociation. A total of 4,454 proteins were identified with a false discovery rate of less than 1.1%, and 2,882 were reliably quantified.

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Section: Fe Deficiency Induces the Phenylpropanoid Pathwaymentioning

confidence: 99%

mentioning

confidence: 99%

iTRAQ Protein Profile Analysis of Arabidopsis Roots Reveals New Aspects Critical for Iron Homeostasis

et al. 2010

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“…The protons released by Fe-deficient plants are mostly buffered by high alkaline pH conditions, and the FCR activities are also seriously depressed (Ohwaki and Sugahara 1997), indicating that the Fe reduction-based mechanism is readily impeded in the strategy I plants grown in alkaline soils. Furthermore, many Fe-deficient strategy I plants also can release several secondary metabolites such as phenolics and flavins, which own redox and/or metal-complexing ability to enhance Fe acquisition (Jin et al 2007;Rodríguez-Celma et al 2011).…”

Section: Research Articlementioning

confidence: 99%

Improved iron acquisition ofAstragalus sinicusunder low iron-availability conditions by soil-borne bacteriaBurkholderia cepacia

Zhou

Zhu

et al. 2017

Journal of Plant Interactions

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Soil bacteria can assist plant growth and increase uptake of nutrient elements, the question arises as to whether beneficial soil microbes confer augmented iron (Fe) content of host plants under Fe limited conditions. Herein, a novel strain of Burkholderia cepacia (strain JFW16) was isolated from rhziospheric soils of Astragalus sinicus grown under alkaline conditions. Inoculation of plants with B. cepacia JFW16 displayed increased endogenous Fe content compared with non-inoculated plants. Growth promotion and enhanced photosynthetic capacity were also observed for the inoculated plants. The inoculation with JFW16 significantly increased the rhizospheric acidification, and up-regulated the transcription of some Fe acquisition-associated genes in Astragalus sinicus. Moreover, the metabolic pathways of flavins were remarkably enhanced in the inoculated plants, showing the increased biosynthesis and release of flavins in roots. Collectively, these findings demonstrated the potential of B. cepacia JFW16 to improve Fe assimilation in agricultural crops. ARTICLE HISTORY

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“…In Fe-deficient conditions, Strategy I is characterized by enhanced excretion of protons and increased activity of Fe 3+ reductase to solubilize Fe 3+ oxides to Fe 2+ chelates. In most cases, Strategy I plants secrete chelating/reducing compounds mainly organic acide and phenolic (Abadía et al 2002;Jin et al 2007). After solubilization, Fe 3+ is reduced to Fe 2 + by a membrane-bound Fe 3+ reductase oxidase (FRO).…”

Section: Introductionmentioning

confidence: 99%

“…Peanut is considered as strategy I plant. Therefore, it employed a range of responses to Fe deficiency stress to acquire Fe from the soil, including: induction of both a plasmalemma ferric-chelate reductase (FCR) ) and plasmalemma Fe II transporter in root cells; enhanced release of protons and reductants such as phenolic compounds into the rhizosphere (Jin et al 2007); changes in root architecture, including enhanced root branching and subapical root hair development (Chen et al 2010). However, when Fe availability is under a threshold level, those are not sufficient to support the Fe requirement for plant development, and the stress symptoms become evident.…”

Section: Introductionmentioning

confidence: 99%

Role of exogenous nitric oxide in alleviating iron deficiency-induced peanut chlorosis on calcareous soil

Kong

Dong

et al. 2013

Journal of Plant Interactions

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This study examined the effects of exogenous nitric oxide (NO) on physiological characteristics of peanut (Arachis hypogaea L.) growing on calcareous soil. Sodium nitroprusside (SNP), a NO donor, was root application (directly; slow-release bag; slow-release capsule; slow-release particle) and foliar application. The results showed that SNP application alleviated iron (Fe) deficiency-induced chlorosis, increased the yield of peanut and increased the Fe concentration in peanut grain. SNP, especially supplied by slow-release particle improved the available Fe in soil by reducing pH of soil and increasing available Fe of soil. Furthermore, SNP application significantly increased the H + -ATPase and Fe 3 + reductase activities and increased the total Fe concentration in the leaves. Meanwhile, SNP application, especially foliar application enhanced the availability of Fe in the plant by significantly increasing the active Fe content and chlorophyll content in the leaves. In addition, SNP also increased the antioxidant activities, but decreased the superoxide anion (O 2• − ) generation rate and malondialdehyde content, which protected peanut against the Fe deficiency-induced oxidative stress. Therefore, these results support a physiological action of SNP on the availability, uptake and transport of Fe in the plant and foliar application SNP had the best effects in leaves and SNP supplied by slow-release particle had the best effects in roots. In addition, on the whole, the effects of SNP supplied by slow-release ways were better than directly supplied into the soil.

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Iron Deficiency-Induced Secretion of Phenolics Facilitates the Reutilization of Root Apoplastic Iron in Red Clover

Cited by 255 publications

References 26 publications

iTRAQ Protein Profile Analysis of Arabidopsis Roots Reveals New Aspects Critical for Iron Homeostasis

iTRAQ Protein Profile Analysis of Arabidopsis Roots Reveals New Aspects Critical for Iron Homeostasis

Improved iron acquisition ofAstragalus sinicusunder low iron-availability conditions by soil-borne bacteriaBurkholderia cepacia

Role of exogenous nitric oxide in alleviating iron deficiency-induced peanut chlorosis on calcareous soil

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