Ethylene and nitric oxide involvement in the up-regulation of key genes related to iron acquisition and homeostasis in Arabidopsis

García, María J.; Lucena, Carlos; Romera, Francisco J.; Alcántara, Estéban; Pérez‐Vicente, Rafael

doi:10.1093/jxb/erq203

Cited by 243 publications

(308 citation statements)

References 81 publications

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“…Both transcription factors are upregulated under Fe deficiency [29] and are involved in FIT stabilization and activity [72,73]. Recently, Son et al [74], have shown that EIN3 directly binds to the promoters of genes, which are the targets of a key transcription factor that regulates root hair development under P deficiency.…”

Section: Hormones and Signaling Substances In The Regulation Of Fe Anmentioning

confidence: 99%

“…In addition to ethylene, other hormones and signaling substances, such as auxin and nitric oxide (NO), have been involved in the up-regulation of Fe and P acquisition genes [3,4,29,68,[75][76][77][78][79][80][81]. In both deficiencies, the activating effect of auxin, ethylene and NO depend on the Fe or P status of the plants [68,69,75,76], which suggests the existence of additional Fe-and P-related signals acting in conjunction with ethylene, auxin and NO [82].…”

Section: Hormones and Signaling Substances In The Regulation Of Fe Anmentioning

confidence: 99%

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Similarities and Differences in the Acquisition of Fe and P by Dicot Plants

et al. 2018

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This review deals with two essential plant mineral nutrients, iron (Fe) and phosphorus (P); the acquisition of both has important environmental and economic implications. Both elements are abundant in soils but are scarcely available to plants. To prevent deficiency, dicot plants develop physiological and morphological responses in their roots to specifically acquire Fe or P. Hormones and signalling substances, like ethylene, auxin and nitric oxide (NO), are involved in the activation of nutrient-deficiency responses. The existence of common inducers suggests that they must act in conjunction with nutrient-specific signals in order to develop nutrient-specific deficiency responses. There is evidence suggesting that P-or Fe-related phloem signals could interact with ethylene and NO to confer specificity to the responses to Fe-or P-deficiency, avoiding their induction when ethylene and NO increase due to other nutrient deficiency or stress. The mechanisms responsible for such interaction are not clearly determined, and thus, the regulatory networks that allow or prevent cross talk between P and Fe deficiency responses remain obscure. Here, fragmented information is drawn together to provide a clearer overview of the mechanisms and molecular players involved in the regulation of the responses to Fe or P deficiency and their interactions.

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Section: Hormones and Signaling Substances In The Regulation Of Fe Anmentioning

confidence: 99%

Section: Hormones and Signaling Substances In The Regulation Of Fe Anmentioning

confidence: 99%

Similarities and Differences in the Acquisition of Fe and P by Dicot Plants

et al. 2018

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“…Evidence obtained in Arabidopsis suggests interplay between ET and NO for upregulation of genes (AtFIT, AtbHLH39, AtFRO2, AtNAS1, AtNAS2, AtFRD3, AtMYB72) related to Fe-deiciency [82]. Although, it is well reported that enhanced NO generation helps to maintain root growth under Cd stress [83]; however, the exact role of NO under excess Fe conditions is rudimentary and demands further investigation.…”

Section: Raphanus Sativus Seedlingsmentioning

confidence: 99%

Cross Talk between Nitric Oxide and Phytohormones Regulate Plant Development during Abiotic Stresses

Nawaz¹,

Shabbir²,

Shahbaz³

et al. 2017

Phytohormones - Signaling Mechanisms and Crosstalk in Plant Development and Stress Responses

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Plants, being sessile, are concurrently exposed to various biotic and abiotic stresses. The perception of stress signals in plants involves a wide spectrum of signal transduction pathways that interact to induce tolerance against adverse environmental conditions. This functional overlapping among various stress signaling cascades also leads to the expression of genes that regulate biosynthesis or action of other hormones. Phytohormonal signals, activated by both developmental and environmental responses, play a crucial role to develop stress tolerance in plants. Nitric oxide (NO) is one of the major players in plant signaling networks. Emerging evidence supports that NO interplays with signaling pathways of auxins, gibberellins, abscisic acid, ethylene, jasmonic acid, brassinosteroids, and other plant hormones to control metabolism, growth, and development in plants. This chapter focuses on the current state of knowledge of cross talk between signaling pathways of NO and phytohormones in plants exposed to various abiotic stresses.

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“…11 Several Cu and Fe related genes respond to both Fe and Cu deficiencies, such as COPT2, ZIP2, and the ferric-chelate reductase FRO3. 10,11,[19][20][21][22][23][24][25][26] Similarly, Cu deficiency upregulated ferric-chelate reductase activity in roots of a number of species. 14,27 To test whether crosstalk between Fe and Cu supply influences accumulation of Fe and Cu in leaves, Arabidopsis plants were grown in hydroponics 10 for 9 d on Fe and Cu treatments (Fig.…”

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confidence: 99%