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The plasma membrane H+-ATPase plays an important role in the plant response to nutrient and environmental stresses. However, the involvement of plant root plasma membrane H+-ATPase in adaptation to phosphate (P) starvation is not yet fully elucidated. In this study, experiments were performed with soybean roots in low-P nutrient solution (10 microM).(More)
Plant stomata limit both carbon dioxide uptake and water loss; hence, stomatal aperture is carefully set as the environment fluctuates. Aperture area is known to be regulated in part by ion transport, but few of the transporters have been characterized. Here we report that AtALMT12 (At4g17970), a homolog of the aluminum-activated malate transporter (ALMT)(More)
One year after the deposition of radionuclides from the Fukushima 1 Nuclear Power Plant (A formal name is Fukushima Daiichi Nuclear Power Station) in March 2011, radiocesium (134Cs, 137Cs) concentrations ([Cs]) were comprehensively investigated in the wild plants of 99 species most of which were annual or summer green perennial herbs and started to grow(More)
Aluminium is well known to inhibit plant elongation, but the role in this inhibition played by water relations remains unclear. To investigate this, tobacco (Nicotiana tabacum L.) suspension-cultured cells (line SL) was used, treating them with aluminium (50 microM) in a medium containing calcium, sucrose, and MES (pH 5.0). Over an 18 h treatment period,(More)
Hydroxyapatite (HAP) is a main mineral constituent of bone and tooth and has an outstanding bio-compatibility. HAP is a possible sorbent for heavy metals in wastewater due to its high adsorption capacity and low water solubility. We developed a removal system of 90 Sr from aqueous solution by HAP column procedure. More than 90 % of 90 Sr was adsorbed and(More)
Al-activated organic acid transporter genes (ALMT and MATE) and plasma membrane H+-ATPase gene (PHA) are known to contribute to the regulation of organic acid secretion in several crops. However, it remains unclear how these genes interact to modulate organic acid exudation in the same plant species. In this study, Al-induced expression of genes (GmALMT1,(More)
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