Complete mitochondrial genome of the aluminum‐tolerant fungus<i><scp>R</scp>hodotorula taiwanensis</i><scp>RS</scp>1 and comparative analysis of<i><scp>B</scp>asidiomycota</i>mitochondrial genomes

Zhao, Xue Qiang; Aizawa, Takuya; Schneider, Jessica; Wang, Chao; Shen, Ren Fang; Sunairi, Michio

doi:10.1002/mbo3.74

Cited by 16 publications

(20 citation statements)

References 48 publications

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“…In a phylogenetic analysis, R . taiwanensis BCRC 23118 was the closest strain to Rt, but both strains showed similar tolerance to Al (Zhao et al ., ). R .…”

Section: Methodsmentioning

confidence: 97%

“…mucilaginosa AKU 4812 (Rm) (CGMCC 2.1515) and one Al‐sensitive mutant 1 ( alsm1 ) from Rt. Rt is a highly Al‐tolerant strain that was previously isolated from acidic oil‐tea soils (Wang et al ., ; Zhao et al ., ). In a phylogenetic analysis, R .…”

Section: Methodsmentioning

confidence: 99%

“…Although the species R . taiwanensis is generally highly Al‐tolerant (Zhao et al ., ), not all members of the genus Rhodotorula are Al‐tolerant. For example, R .…”

Section: Introductionmentioning

confidence: 97%

“…mucilaginosa was shown to be the closest species related to R . taiwanensis in a phylogenetic analysis (Zhao et al ., ). The Al‐sensitive mutant strain was screened out from the mutated strains of Al‐tolerant Rt.…”

Section: Introductionmentioning

confidence: 97%

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A potential contribution of the less negatively charged cell wall to the high aluminum tolerance of Rhodotorula taiwanensis RS1

Zhao

Bao

et al. 2016

Yeast

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Rhodotorula taiwanensis RS1 (Rt) is a high-aluminum (Al)-tolerant yeast that can survive Al at concentrations up to 200 mM. In this study, we compared Rt with an Al-sensitive congeneric strain, R. mucilaginosa AKU 4812 (Rm) and Al sensitive mutant 1 (alsm1) of Rt, to explore the Al tolerance mechanisms of Rt. The growth of Rm was completely inhibited by 1 mM Al, but that of Rt was not inhibited until Al concentration was more than 70 mM. The growth of alsm1 was inhibited much more by 70 mM and 100 mM Al than that of Rt. Compared with Rm cells, Rt cells accumulated less Al in the cell wall and cytoplasm. A time-course analysis showed that Al was absorbed by Rm cells much more rapidly than by Rt cells when exposed to the same Al concentration. Meanwhile, the Al content of alsm1 was higher than that of Rt. Although the cell wall of Rt was thicker than that of alsm1 and Rm under control and 0.1 mM Al, that of Rt was thinner than that of alsm1 under 70 mM Al despite that their cell walls were thickened. The alcian blue adsorption was lower and cell wall zeta-potential was higher in Rt and alsm1 than in Rm, indicating a less negative charge of cell wall of Rt and alsm1 than that of Rm. Taken together, the less negatively charged cell wall of Rt may restrict the adsorption of cationic Al in cells, potentially contributing to its high Al tolerance. Copyright © 2016 John Wiley & Sons, Ltd.

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“…In a phylogenetic analysis, R . taiwanensis BCRC 23118 was the closest strain to Rt, but both strains showed similar tolerance to Al (Zhao et al ., ). R .…”

Section: Methodsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

“…Although the species R . taiwanensis is generally highly Al‐tolerant (Zhao et al ., ), not all members of the genus Rhodotorula are Al‐tolerant. For example, R .…”

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 97%

See 2 more Smart Citations

A potential contribution of the less negatively charged cell wall to the high aluminum tolerance of Rhodotorula taiwanensis RS1

Zhao

Bao

et al. 2016

Yeast

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“…Some fungi can tolerate Al at concentrations of up to several hundred millimolar Zhao et al, 2013b), much higher than the micromolar concentrations tolerated by plants. Some fungi can tolerate Al at concentrations of up to several hundred millimolar Zhao et al, 2013b), much higher than the micromolar concentrations tolerated by plants.…”

Section: Strategies To Improve Plant Growth In Acidic Soilsmentioning

confidence: 99%

Coadaptation of Plants to Multiple Stresses in Acidic Soils

2014

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Soil acidification is an increasing problem in agricultural production and ecological stability worldwide. An understanding of the mechanisms by which plants adapt to acidic soils would help address this problem. Poor plant growth in acidic soils results from a variety of factors, including proton toxicity; deficiencies in nitrogen, phosphorus, calcium, magnesium; and toxicities of various metals (aluminum (Al), manganese, iron). Aluminum toxicity is generally the primary limitation for plant growth in acidic soils. Although much research has focused on Al toxicity in recent decades, it is rarely the only limiting factor in acidic soils. The occurrence of Al toxicity depends on many other factors that coexist with Al in acidic soils. The interactions between Al and such factors are important determinants of Al toxicity to plants under field conditions. In this review, therefore, instead of focusing only on mechanisms of Al tolerance, we examine the effects of the interactions between Al and other limiting factors on plant adaptation to acidic soils. We summarize research on the interactions between Al and nitrogen, phosphorus, pH, and iron. Accordingly, three strategies are proposed to improve plant growth in acidic soils: a combined application of lime and nutrients, depending on the types of soils and plants; development of plant varieties tolerant to multiple stresses; and inoculation of plants with certain beneficial microbes. This review emphasizes the ability of plants to coadapt to multiple stresses in acidic soils.

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Hydroxy-Al and cell-surface negativity are responsible for the enhanced sensitivity of Rhodotorula taiwanensis to aluminum by increased medium pH

et al. 2017

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Aluminum (Al) is ubiquitous and toxic to microbes. High Al concentration and low pH are two key factors responsible for Al toxicity, but our present results contradict this idea. Here, an Al-tolerant yeast strain Rhodotorula taiwanensis RS1 was incubated in glucose media containing Al with a continuous pH gradient from pH 3.1-4.2. The cells became more sensitive to Al and accumulated more Al when pH increased. Calculations using an electrostatic model Speciation Gouy Chapman Stern indicated that, the increased Al sensitivity of cells was associated with AlOH and Al(OH) rather than Al. The alcian blue (a positively charged dye) adsorption and zeta potential determination of cell surface indicated that, higher pH than 3.1 increased the negative charge and Al adsorption at the cell surface. Taken together, the enhanced sensitivity of R. taiwanensis RS1 to Al from pH 3.1-4.2 was associated with increased hydroxy-Al and cell-surface negativity.

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Complete mitochondrial genome of the aluminum‐tolerant fungusRhodotorula taiwanensisRS1 and comparative analysis ofBasidiomycotamitochondrial genomes

Cited by 16 publications

References 48 publications

A potential contribution of the less negatively charged cell wall to the high aluminum tolerance of Rhodotorula taiwanensis RS1

A potential contribution of the less negatively charged cell wall to the high aluminum tolerance of Rhodotorula taiwanensis RS1

Coadaptation of Plants to Multiple Stresses in Acidic Soils

Hydroxy-Al and cell-surface negativity are responsible for the enhanced sensitivity of Rhodotorula taiwanensis to aluminum by increased medium pH

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