Phosphorus deficiency enhances aluminum tolerance of rice (Oryza sativa) by changing the physicochemical characteristics of root plasma membranes and cell walls

Maejima, Eriko; Watanabe, Toshihiro; Osaki, Mitsuru; Wagatsuma, Tadao

doi:10.1016/j.jplph.2013.09.012

Cited by 53 publications

(37 citation statements)

References 44 publications

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“…3b,4,5a,7,and 8). This result is consistent with a recent study by Maejima et al (2014) in rice. They also found that P deficiency increased Al tolerance and decreased Al accumulation in rice roots.…”

Section: P0supporting

confidence: 94%

Effect of in planta phosphorus on aluminum-induced inhibition of root elongation in wheat

et al. 2015

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Aims Both aluminum (Al) toxicity and phosphorus (P) deficiency are limiting factors of crop production on acid soils. Although Al-P interaction has been extensively studied, the results are controversial. The aim of this study is to investigate the effect of in planta P on Alinduced inhibition of root elongation in wheat (Triticum aestivum L.). Methods Roots of wheat (cv. Atlas 66) with different internal P concentrations were prepared by two methods; split-root and re-rooting in a hydroponic solution using three different P levels (0, 25 and 250 μM) to avoid direct precipitation of Al-P in the solution. Al toxicity was evaluated by root elongation inhibition and callose induction. The Al and P concentrations in the root tips were also compared among different treatments.Results Both split-root and re-rooting methods generated roots with different P concentrations in the tips when exposed to different P levels. Lower P in the root tips resulted in less Al-induced inhibition of the root elongation, less callose content and less Al accumulation, while higher root P caused a higher Al-induced inhibition of the root elongation, increased callose content and Al accumulation in the root tips. Furthermore, Al in the root cell sap was not altered by different P concentrations, but Al in the root cell wall was increased with increasing in planta P concentrations. Conclusions Al toxicity in wheat is associated with P in the root cell wall; lower root P enhanced Al tolerance, while higher root P aggravated Al toxicity in wheat.

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Section: P0supporting

confidence: 94%

Effect of in planta phosphorus on aluminum-induced inhibition of root elongation in wheat

et al. 2015

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“…The crucial role of the PM in acclimation to stresses is based on the fact that maintenance of the PM integrity under environmental threats has been reported to participate greatly in plant tolerance to different stresses (Zhang et al, 2010;Mansour, 2013;Jager et al, 2014;Maejima et al, 2014). Evidence supporting the implication of the PM integrity maintenance in adaptation to salinity as well as other stresses is addressed.…”

Section: Introductionmentioning

confidence: 99%

“…These functions are essentially controlled by the PM lipids and proteins. The PM lipids are responsible for determining biological properties of the membrane (Uitert et al, 2010), and their composition was remarkably different and underlying variations in stress tolerance among crop species (Khan et al, 2009;Huynh et al, 2012;Mansour, 2013;Maejima et al, 2014;ScottiCampos et al, 2014). It is therefore proposed the PM as a major target of environmental stresses, and changes in its lipid composition were related with increased resistance to (Mansour & Salama, 2004;Rodrıguez-Vargas et al, 2007;Su et al, 2009;Huynh et al, 2012;Kosová et al, 2013;Mansour 2013Mansour , 2014Scotti-Campos et al, 2014;Maejima et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…The PM lipids are responsible for determining biological properties of the membrane (Uitert et al, 2010), and their composition was remarkably different and underlying variations in stress tolerance among crop species (Khan et al, 2009;Huynh et al, 2012;Mansour, 2013;Maejima et al, 2014;ScottiCampos et al, 2014). It is therefore proposed the PM as a major target of environmental stresses, and changes in its lipid composition were related with increased resistance to (Mansour & Salama, 2004;Rodrıguez-Vargas et al, 2007;Su et al, 2009;Huynh et al, 2012;Kosová et al, 2013;Mansour 2013Mansour , 2014Scotti-Campos et al, 2014;Maejima et al, 2014). Evidence indicates that saline environments change the lipid composition/content of the PM, which proposed to contribute to salinity adaptation (Douglas, 1985;Mansour et al, 1994Mansour et al, , 2002Kerkeb et al, 2001;Wu et al, 2005;Bing-jun et al, 2005;Salama et al, 2007;Bargmann et al, 2009;Zamani et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Role of the Plasma Membrane in Saline Conditions: Lipids and Proteins

2015

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The PM is believed to be one facet of the cellular mechanisms involved in adaptation to saline conditions. Alterations in the PM components in response to salinity are therefore anticipated to contribute to plant salt tolerance. The review provides a comprehensive overview of the recent findings describing the crucial roles of the PM components in plant acclimation to salt stress. The responses of the PM proteins and lipids to salinity in contrasting species/cultivars were therefore discussed. The relationship between alterations in the lipids and proteins of the PM and tolerance to salt stress is also addressed. Several lines of evidence were presented demonstrating correlation of modifying the PM composition with adaptation of plants to high salinity. Even if contradictory results have been observed, the roles of the PM lipids and proteins appeared to be of great importance for tolerance to high salinity. Despite the promising results, more research should be carried out at the molecular level to further evaluate the roles of some of the PM components in salt tolerance.

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“…Fatty acids (FAs) are pivotal constituents of cellular membranes, suberin, and cutin waxes that provide structural barriers to the environment (Beisson et al, 2007). Cellular membranes are a major target of environmental signals, and the maintenance of their integrity, permeability, fluidity and functionality of transport proteins by recalibrating lipid composition is critical for the resistance to different stresses (Rodriguez-Vargas et al, 2007; Huynh et al, 2012; Maejima et al, 2014). …”

Section: Introductionmentioning

confidence: 99%

Genes of ACYL CARRIER PROTEIN Family Show Different Expression Profiles and Overexpression of ACYL CARRIER PROTEIN 5 Modulates Fatty Acid Composition and Enhances Salt Stress Tolerance in Arabidopsis

et al. 2017

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Acyl carrier proteins (ACPs) are a group of small acidic proteins functioning as important cofactors in the de novo synthesis of fatty acids. In Arabidopsis, ACPs are encoded by a small gene family comprising five plastid members, AtACP1 to AtACP5, and three mitochondrial members. The biological functions and the transcriptional responses to abiotic stresses of most AtACPs have yet to be elucidated. The present study extends previous findings and provides new knowledge on the function of ACPs by examining the responses of AtACP-encoding genes to several abiotic stresses and, in particular, the role of AtACP5 in the adaptation to salt stress. Phylogenetic analysis showed that AtACP1, AtACP2, AtACP3, and AtACP5 can be classified into one group and separated from a group comprising AtACP4 and ACP homologs from related species. Quantitative RT-PCR analysis revealed that the expression of AtACP1, AtACP2, and AtACP3 was induced by drought. Both iron deficiency and nitrogen starvation resulted in down-regulation of AtACP4. The most pronounced response was observed for AtACP5, the expression of which was dramatically decreased by salt stress. Knock-out of AtACP5 showed increased sensitivity to NaCl stress, whereas transgenic lines overexpressing AtACP5 displayed increased salt tolerance relative to the wild-type. Overexpression of AtACP5 further led to an altered composition of fatty acids, mainly a decrease of oleic acid (C18:1) and an increase of palmitic acid (C16:0), and to a lower Na+/K+ ratio when compared to the salt stressed wild-type. The comprehensive transcriptional information on the small plastid AtACP gene family in response to various abiotic stresses and the further investigation of the AtACP5 indicate that AtACP5 might be critical for salt tolerance through alterations of the composition of fatty acids and, subsequently, the Na+/K+ ratio.

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Phosphorus deficiency enhances aluminum tolerance of rice (Oryza sativa) by changing the physicochemical characteristics of root plasma membranes and cell walls

Cited by 53 publications

References 44 publications

Effect of in planta phosphorus on aluminum-induced inhibition of root elongation in wheat

Effect of in planta phosphorus on aluminum-induced inhibition of root elongation in wheat

Role of the Plasma Membrane in Saline Conditions: Lipids and Proteins

Genes of ACYL CARRIER PROTEIN Family Show Different Expression Profiles and Overexpression of ACYL CARRIER PROTEIN 5 Modulates Fatty Acid Composition and Enhances Salt Stress Tolerance in Arabidopsis

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