22 Result(s)
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Article
Linking root morphology and anatomy with transporters for mineral element uptake in plants
One of the most important roles of plant roots is to take up mineral nutrients from soils for growth and development. The uptake of mineral nutrients is mediated by many different transporters expressed in the...
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Article
Silicon accumulation in rice plant aboveground biomass affects leaf carbon quality
Silicon is known to be able to substitute carbon in plant biomass, especially in cellulose, lignin and phenols. However, a more comprehensive picture regarding the effect of silicon accumulation on plant carbo...
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Article
Silicon accumulated in the shoots results in down-regulation of phosphorus transporter gene expression and decrease of phosphorus uptake in rice
Silicon (Si) as a beneficial element can improve nutrient imbalance, but the molecular mechanism for this effect is poorly understood. The objective of this study is to examine the mechanism underlying Si-indu...
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Article
Isolation and characterization of a rice line with high Cd accumulation for potential use in phytoremediation
To reduce cadmium (Cd) intake, remediation of Cd-contaminated soil and breeding crops with low Cd accumulation are important. This study aims to isolate rice mutants with altered accumulation of Cd.
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Article
Effect of in planta phosphorus on aluminum-induced inhibition of root elongation in wheat
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 o...
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Article
Molecular mechanisms of Al tolerance in gramineous plants
Aluminum (Al) toxicity has limited the productivity and expansion of cereal crops on acid soils; however, a number of plant species or cultivars have developed different strategies for detoxifying aluminum bot...
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Article
Magnesium transporters and their role in Al tolerance in plants
Magnesium (Mg) is an essential macronutrient for plant growth, which has diverse biological functions. However, little is known about the transport system of this nutrient in plants. In the genome of plants su...
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Article
Silicon enhances growth independent of silica deposition in a low-silica rice mutant, lsi1
To examine whether silica bodies are essential for silicon-enhanced growth of rice seedlings, we investigated the response of rice, Oryza sativa L., to silicon treatment. Silicic acid treatment markedly enhanced ...
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Article
Iron for plants and humans
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Article
Secretion time of phytosiderophore differs in two perennial grasses and is controlled by temperature
Some perennial grasses secrete phytosiderophores from the roots in response to Fe-deficiency. Here, we characterized the pattern of phytosiderophore secretion by Lolium perenne (cv. ‘Tove’) and Poa pratensis (cv....
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Article
Reexamination of silicon effects on rice growth and production under field conditions using a low silicon mutant
Silicon (Si) is a beneficial element for healthy growth and high and sustainable production of rice, but the mode of action of the beneficial effects has not been well understood. We carried out field trials f...
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Article
Secretion of malate and citrate from roots is related to high Al-resistance in Lespedeza bicolor
Lespedeza bicolor (Lespedeza bicolor Turcz. cv. Jiangxi) is a leguminous shrub that is well adapted to acid infertile soils. However, the mechanisms of aluminum resistance in this species...
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Article
Phytoremediation of Pb contaminated soil with polymer-coated EDTA
EDTA-assisted phytoextraction of lead (Pb) has been developed, but concerns have arisen due to the possibility of leaching of both Pb and EDTA to ground water caused by uncontrolled release. We developed five ...
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Article
Buckwheat accumulates aluminum in leaves but not in seeds
Buckwheat (Fagopyrum esculentum Moench. cv Jianxi) is highly resistant to Al stress and is known to be an Al-accumulator. Pot experiments were carried out in a greenhouse to investigate the accumulation of Al in ...
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Article
Characterization of phytosiderophore secretion under Fe deficiency stress in Festuca rubra
In the present study we investigated the response to iron (Fe) deficiency in two cultivars of Festuca rubra L. (Rubina and Barnica) used in correction of chlorosis of fruit trees cultivated on calcareous soils. W...
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Article
Genotypic variation in silicon concentration of barley grain
Soluble silicon (Si) in foods and drinks has been suggested to have a protective effect against neurotoxicity of Al. We investigated the genotypic variation in Si concentration of barley grain, which has many ...
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Article
Aluminum-induced secretion of both citrate and malate in rye
Aluminum (Al)-resistant mechanisms responsible for Al-induced secretion of organic acids are poorly understood. In this study, we characterized the Al-induced secretion of both citrate and malate from rye (Secale...
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Article
A rapid hydroponic screening for aluminium tolerance in barley
Selection and breeding of crops for aluminium (Al) tolerance is a useful approach to increase production on acid soils. This requires a rapid and reliable system to discriminate between Al-tolerant and Al-sens...
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Chapter
Early events induced by aluminum stress in elongating cells of wheat root
The relation between the toxic effects of alminum (Al) on growth and cell viability in roots of wheat (Triticum aestivum L. cv Atlas 66) was investigted. Root elongation of wheat was reduced after 3 h of treatmen...
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Chapter
Secretion of citric acid as an aluminium-resistant mechanism in Cassia tora L.
The mechanism responsible for Al resistance in Cassia tora L., an Al-resistant species, was investigated by comparison with Cassia occidentalis L., an Al-sensitive species, in terms of secretion of citric acid. I...
