Faculty Opinions recommendation of Arabidopsis Transporter MGT6 Mediates Magnesium Uptake and Is Required for Growth under Magnesium Limitation.

2014 ◽  
Author(s):  
Jian Feng Ma
Keyword(s):  
Magnesium Uptake

scholarly journals Sodium-dependent magnesium uptake by ferret red cells.

1991 ◽  
Vol 443 (1) ◽  
pp. 217-230 ◽  
Author(s):  
P W Flatman ◽  
L M Smith
Keyword(s):  
Red Cells ◽  
Magnesium Uptake ◽  
Sodium Dependent

scholarly journals Aspects of potassium and magnesium uptake by oats.

1974 ◽  
Vol 22 (4) ◽  
pp. 237-244
Author(s):  
A.C. Schuffelen
Keyword(s):  
Direct Relationship ◽  
Common Mechanism ◽  
Specific Mechanism ◽  
K Uptake ◽  
Uptake Mechanism ◽  
Water Culture ◽  
Mg Deficiency ◽  
Magnesium Uptake ◽  
Low K ◽  
Solution Acidity

Data from a range of experiments with oats in water culture indicated that the occurrence of Mg deficiency had only a slight direct relationship with solution acidity. It was calculated that about 3% of the total mechanism for the uptake of K and Mg consisted of a specific mechanism for Mg uptake, 30% of a specific mechanism for K uptake, and 67% of a common mechanism. It was not clear whether one or more systems were involved. At very low K concentrations the specific K uptake mechanism could also take up Na. (Abstract retrieved from CAB Abstracts by CABI’s permission)

Magnesium uptake characteristics in Arabidopsis revealed by 28Mg tracer studies

Planta ◽  
2018 ◽  
Vol 248 (3) ◽  
pp. 745-750 ◽  
Author(s):  
Takaaki Ogura ◽  
Natsuko I. Kobayashi ◽  
Hisashi Suzuki ◽  
Ren Iwata ◽  
Tomoko M. Nakanishi ◽  
...  
Keyword(s):  
Tracer Studies ◽  
Magnesium Uptake

Abstract MP23: Urinary Magnesium Excretion and Risk of Incident Hypertension

Circulation ◽  
2013 ◽  
Vol 127 (suppl_12) ◽  
Author(s):  
Michel M Joosten ◽  
Ron T Gansevoort ◽  
Kenneth J Mukamal ◽  
Johanna M Geleijnse ◽  
Edith J Feskens ◽  
...  
Keyword(s):  
Confidence Interval ◽  
Urinary Excretion ◽  
Cox Regression ◽  
Smoking Status ◽  
Population Based ◽  
Incident Hypertension ◽  
Adjusted Risk ◽  
Magnesium Uptake ◽  
Magnesium Excretion ◽  
Log Linear

Background: Observational studies on dietary magnesium and risk of hypertension have reported mixed findings, but have lacked direct measures of magnesium uptake. Urinary excretion of magnesium, an indicator of dietary uptake, may clarify these discrepant findings. Methods: We examined 4,070 participants aged 28-75 years free of hypertension, kidney disease, and cardiovascular disease in the PREVEND Study, a prospective population-based cohort study. Urinary magnesium excretion was measured in two 24-hour urine collections at baseline. Incident hypertension was defined as blood pressure ≥140/90 mm Hg or initiation of antihypertensive medication. Results: During a median follow-up of 7.5 years (interquartile range: 5.5-9.2 years), 1,001 participants developed incident hypertension. Mean 24-hour urinary magnesium excretion was 4.35 ± 1.61 mmol for men and 3.65 ± 1.35 mmol for women. Urinary magnesium excretion was associated with risk of hypertension in a log-linear fashion (Figure) after adjustment for age, body mass index, sex, smoking status, alcohol intake, family history of hypertension, and urinary excretion of sodium, potassium, and calcium. Each 1-unit increment in ln-transformed urinary magnesium excretion was associated with a 26% lower risk of incident hypertension after multivariable adjustment (adjusted hazard ratio, 0.74; 95% confidence interval, 0.65-0.84). Conclusion: Urinary magnesium excretion is inversely and independently associated with risk of incident hypertension. Increasing dietary intake of magnesium could reduce the risk of hypertension. Figure legend: Natural log-transformed urinary magnesium concentrations and adjusted risk of hypertension. Magnesium levels were back-transformed to original values for ease of interpretation. Association estimated by Cox regression based on restricted splines with three knots. Dashed lines represent the 95% confidence interval. The spline curve is truncated at the 0.5 percentile and 99.5 percentile of the distribution curve.

Yield and Rhizosphere - microflora of Cowpea in Response to Magnesium Fertilization in Lateritic Soils of Kerala

2021 ◽  
Author(s):  
V.P. Soniya ◽  
P.S. Bhindhu
Keyword(s):  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Root Colonization ◽  
Arbuscular Mycorrhizal ◽  
Nitrogen Fixing ◽  
Nitrogen Fixing Bacteria ◽  
Free Living ◽  
Spore Count ◽  
Lateritic Soils ◽  
Magnesium Uptake

Background: Magnesium deficiency has become a major nutritional disorder in lateritic soils of Kerala. Appropriate magnesium fertilization is the best strategy to combat deficiency issues. Apart from correcting nutritional deficiency, magnesium fertilization has an influence on the growth of beneficial microbes such as nitrogen fixing bacterias and arbuscular mycorrhizal fungi. The experiment aimed to investigate the effect of magnesium fertilization on crop yield and population rhizosphere micoflora of cowpea in lateritic soils of Kerala.Methods: A pot culture experiment was conducted with a gradient of magnesium additions ranging from 5 mg kg-1 to 80 mg kg-1 of soil along with recommended dose of fertilizers. Population of rhizobium, free living nitrogen fixing bacteria, spore count of arbuscular mycorrhizal fungi and per cent root colonization of arbuscular mycorrhizal fungi were studied during flowering. The available magnesium and magnesium uptake were also worked out during harvest. Yield and yield contributing characteristics of cowpea were measured during harvest stage.Result: Magnesium addition produced significant variations in population of rhizobium and free- living nitrogen fixing bacteria whereas spore count of AMF and per cent root colonization of AMF did not vary according to the added doses of magnesium. A higher population of rhizobium, free living nitrogen fixers, root nodules, magnesium uptake, plant height and yield were obtained in the treatment where magnesium was applied @ 10 mg kg-1 soil.

Magnesium Uptake by the Green Microalga Chlorella vulgaris in Batch Cultures

2016 ◽  
Vol 26 (3) ◽  
pp. 503-510 ◽  
Author(s):  
Hela Ben Amor-Ben Ayed ◽  
Behnam Taidi ◽  
Habib Ayadi ◽  
Dominique Pareau ◽  
Moncef Stambouli
Keyword(s):  
Chlorella Vulgaris ◽  
Batch Cultures ◽  
Magnesium Uptake ◽  
Green Microalga

Modelling nitrogen, phosphorus, potassium, calcium and magnesium uptake, and uptake concentration, of greenhouse tomato with the VegSyst model

2021 ◽  
Vol 279 ◽  
pp. 109862
Author(s):  
Marisa Gallardo ◽  
Jesús Cuartero ◽  
Llanos Andújar de la Torre ◽  
Francisco M. Padilla ◽  
M. Luz Segura ◽  
...  
Keyword(s):  
Greenhouse Tomato ◽  
Magnesium Uptake ◽  
Calcium And Magnesium ◽  
Nitrogen Phosphorus

scholarly journals Magnesium isotope fractionation reflects plant response to magnesium deficiency in magnesium uptake and allocation: a greenhouse study with wheat

2020 ◽  
Vol 455 (1-2) ◽  
pp. 93-105
Author(s):  
Yi Wang ◽  
Bei Wu ◽  
Anne E. Berns ◽  
Ying Xing ◽  
Arnd J. Kuhn ◽  
...  
Keyword(s):  
Isotope Fractionation ◽  
Magnesium Deficiency ◽  
Growth Media ◽  
Growth Stages ◽  
Mg Deficiency ◽  
Greenhouse Study ◽  
Stable Isotope Fractionation ◽  
Magnesium Uptake ◽  
Mg Isotopes ◽  
Whole Plants

Abstract Aims Magnesium (Mg) deficiency is detrimental to plant growth. However, how plants respond to Mg deficiency via regulation of Mg uptake and allocation is yet not fully understood. In this study, we tested whether Mg isotope compositions (δ26Mg) associated with Mg mass balance of the plants could be used as an indicator to trace Mg uptake and subsequent translocation processes under sufficient and low-Mg supply conditions. We aimed at using stable isotope fractionation as a novel proxy for nutrient uptake and cycling in plants. Methods We grew wheat plants (Triticum aestivum) in a greenhouse under control (1 mM Mg) and low-Mg supply (0.05 mM Mg) conditions, respectively. The Mg concentrations and isotope compositions in roots, stems, leaves and spikes/grains at different growth stages were analyzed. Results Wheat plants were systematically enriched in heavy Mg isotopes relative to the nutrient solution regardless of Mg supply conditions. With crop growth, the δ26Mg of the whole plants, as well as each plant organ, gradually shifted towards higher values in the control. However, the δ26Mg value of the whole plants in the low-Mg supply did not vary significantly. In addition, the wheat stems and spikes showed continuous enrichment of lighter Mg isotopes in the low-Mg supply than those in the control. Conclusions As reflected from Mg isotope compositions, the Mg supply in the growth media could affect the Mg uptake and subsequent translocation processes in plants. Changes in δ26Mg indicated that wheat plants likely regulated their Mg uptake strategy by switching between active and passive pathways during their life cycle. When Mg supply was low, a more negative δ26Mg value of the spikes suggested a potentially enhanced remobilization of Mg from leaves to spikes. Our results showed that Mg stable isotopes can provide new insights into plants’ response to nutrient shortage.

scholarly journals Effects of Ca/Si Ratio, Aluminum and Magnesium on the Carbonation Behavior of Calcium Silicate Hydrate

Materials ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1268 ◽  
Author(s):  
Jing Li ◽  
Qijun Yu ◽  
Haoliang Huang ◽  
Suhong Yin
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Bond Strength ◽  
Calcium Silicate ◽  
Calcium Silicate Hydrate ◽  
X Ray ◽  
Thermogravimetric Analyzer ◽  
Magnesium Uptake ◽  
Carbonation Resistance ◽  
The Mean

The effects of Ca/Si ratio, aluminum and magnesium on the carbonation behavior of calcium silicate hydrate (C-S-H) were investigated by using X-ray powder diffraction (XRD), nuclear magnetic resonance (NMR) and thermogravimetric analyzer (TGA). The results showed that the Ca/Si ratio, Al/Si ratio and Mg/Si ratio had a significant influence on the structure, carbonation products and carbonation resistance of C-(M)-(A)-S-H. The mean chain length of silicate chains in C-S-H increased as the Ca/Si ratio decreased. Aluminum uptake in C-S-H increased the content of bridging silicate tetrahedron (Q2). A cross-linked structure (Q3) appeared when magnesium uptake in C-S-H. The carbonation product of C-S-H was vaterite if the Ca/Si ratio was lower than 0.87. The carbonation products of C-S-H were vaterite and calcite if the Ca/Si ratio was higher than 1.02. C-M-S-H had more polymerized units, stronger bond strength and better carbonation resistance than C-S-H.

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