Boron-Dependent Degradation of<i>NIP5;1</i>mRNA for Acclimation to Excess Boron Conditions in<i>Arabidopsis</i>

Tanaka, Mieko; Takano, Junpei; Chiba, Yasuhiro; Lombardo, Fabien; Ogasawara, Yuki; Onouchi, Hitoshi; Naito, Shuichi; Fujiwara, Toru

doi:10.1105/tpc.111.088351

Cited by 110 publications

(116 citation statements)

References 59 publications

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“…1D) and maintained at a constant level after 2 h. AtNIP5;1 in Arabidopsis was also down-regulated by B (Takano et al, 2006). The 59 UTR was involved in the regulation of AtNIP5;1 expression (Tanaka et al, 2011). It seems that high B triggers AtNIP5;1 mRNA degradation.…”

Section: Osnip3;1 Is Regulated At Both Transcriptional and Protein Levelmentioning

confidence: 85%

“…Furthermore, it was recently found that the minimum open reading frame, AUG-stop induced B-dependent ribosome stalling and mRNA degradation of AtNIP5;1 (Tanaka et al, 2016). The 59 UTR is highly conserved between AtNIP5;1 and OsNIP3;1 (Tanaka et al, 2011). This suggests that similar mechanism is involved in the regulation of OsNIP3;1 in rice although further confirmation is required in future.…”

Section: Osnip3;1 Is Regulated At Both Transcriptional and Protein Levelmentioning

confidence: 85%

“…In Arabidopsis, B homeostasis seems to be maintained through regulating B uptake mediated by NIP5;1 and BOR1. NIP5;1 undergoes transcriptional regulation (Takano et al, 2010;Tanaka et al, 2011), whereas BOR1 is regulated at posttranscriptional regulation in response to external B change (Takano et al, 2005). Rice seems to have a different mechanism for B homeostasis.…”

Section: Different Regulation Of B Accumulation In Rice and Arabidopsismentioning

confidence: 99%

“…In natural systems, B concentrations vary from vanishingly small to very high (Tanaka et al, 2011;Reid 2014), but the range between deficiency and toxicity of B is very narrow. Therefore, plants must have a system to maintain B homeostasis by regulating the uptake, mobilization, distribution, and sequestration.…”

Section: Different Regulation Of B Accumulation In Rice and Arabidopsismentioning

confidence: 99%

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Preferential Distribution of Boron to Developing Tissues Is Mediated by the Intrinsic Protein OsNIP3

et al. 2017

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Boron is especially required for the growth of meristem and reproductive organs, but the molecular mechanisms underlying the preferential distribution of B to these developing tissues are poorly understood. Here, we show evidence that a member of nodulin 26-like intrinsic protein (NIP), OsNIP3;1, is involved in this preferential distribution in rice (Oryza sativa). OsNIP3;1 was highly expressed in the nodes and its expression was up-regulated by B deficiency, but down-regulated by high B. OsNIP3;1 was polarly localized at the xylem parenchyma cells of enlarged vascular bundles of nodes facing toward the xylem vessels. Furthermore, this protein was rapidly degraded within a few hours in response to high B. Knockout of this gene hardly affected the uptake and root-to-shoot translocation of B, but altered B distribution in different organs in the above-ground parts, decreased distribution of B to the new leaves, and increased distribution to the old leaves. These results indicate that OsNIP3;1 located in the nodes is involved in the preferential distribution of B to the developing tissues by unloading B from the xylem in rice and that it is regulated at both transcriptional and protein level in response to external B level.

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Section: Osnip3;1 Is Regulated At Both Transcriptional and Protein Levelmentioning

confidence: 85%

Section: Osnip3;1 Is Regulated At Both Transcriptional and Protein Levelmentioning

confidence: 85%

Section: Different Regulation Of B Accumulation In Rice and Arabidopsismentioning

confidence: 99%

Section: Different Regulation Of B Accumulation In Rice and Arabidopsismentioning

confidence: 99%

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Preferential Distribution of Boron to Developing Tissues Is Mediated by the Intrinsic Protein OsNIP3

et al. 2017

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“…NIP5;1, NIP3;1 and NIP1;1 are expressed predominantly in the root. In the root, NIP5;1 localizes to the distal side of epidermal cells, NIP1;1 is localized to the stele while NIP3;1 is expressed throughout the root [13][14][15]. NIP7;1 is most highly expressed in developing anthers where it is proposed to deliver boron to developing pollen [16] but is also present in many other tissues in both roots and shoots ( Fig.…”

Section: Highlightsmentioning

confidence: 99%

Arabidopsis thaliana NIP7;1 is involved in tissue arsenic distribution and tolerance in response to arsenate

Lindsay

Maathuis

2016

FEBS Letters

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The Arabidopsis aquaglyceroporin NIP7;1 is involved in uptake and tolerance to the trivalent arsenic species arsenite. Here, we show that NIP7;1 is also involved in the response to pentavalent arsenate. Loss of function of NIP7;1 improved tolerance to arsenate and reduced arsenic levels in both the phloem and xylem, resulting in altered arsenic distribution between tissues. There was no clear correlation between growth and shoot arsenic concentration. This is the first report detailing the involvement of a NIP transporter in response to arsenate. The data suggest that these proteins are relevant targets for breeding and engineering arsenic tolerance in crops.

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Boron

Sakamoto¹

2012

Encyclopedia of Life Sciences

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Boron (B), a metalloid element, is atomic number 5 of periodic table. Element B and some B compounds have industrial values. B essentiality is proven in some living organisms including plants, but probably in human. At present, the only role of B in plants is demonstrated as the structural maintenance of cell wall. Soil B, as boric acid, is acquired through roots and then distributed around the plant via the passive and active transport pathway. To adapt variations in the environmental B status, the active B transport system is tightly regulated at the molecular level in plants. In agriculture, both deficient and excess levels of soil B impair plant growth, resulting in the reduction of quantity and quality of crops. The major causes of B toxicity in plants contain oxidative stress, metabolism alteration and deoxyribonucleic acid damage. Several plant traits/genes that ensure tolerance to B stress have been isolated. Key Concepts: Boron has numerous biological functions in almost all living organisms including plants although its biochemical importance is poorly understood. B is widely distributed in the earth, and its main form in soils is boric acid that is available for plants. B availability in soils depends on factors such as soil type and climates, and it is a key determinant for the crop yields in agriculture. Plants uptake and distribute B via two distinct pathways: passive diffusion and active transport mediated by B transport molecules. The molecules working in the active B transport system are tightly regulated dependently to the environmental B conditions to promote B acquisition under limited B supply or to avoid accumulating toxic levels of B in plants. The active B efflux from cells to soils or outside of cells and the protection of cellular mechanism from B attack are key molecular processes for B‐toxicity tolerance in plants.

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Boron-Dependent Degradation ofNIP5;1mRNA for Acclimation to Excess Boron Conditions inArabidopsis

Cited by 110 publications

References 59 publications

Preferential Distribution of Boron to Developing Tissues Is Mediated by the Intrinsic Protein OsNIP3

Preferential Distribution of Boron to Developing Tissues Is Mediated by the Intrinsic Protein OsNIP3

Arabidopsis thaliana NIP7;1 is involved in tissue arsenic distribution and tolerance in response to arsenate

Boron

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