Evidence for Microbial Community Effect on Sediment Equilibrium Phosphorus Concentration (EPC0)

Grain yield response of soybean (Glycine max cv. Bragg) to applied phosphorus was measured at 19 experimental sites in the South Burnett region. The soil phosphorus supply factors of quantity, intensity, buffer capacity and rate were estimated by various soil chemical tests, and relative yield [(yield at nil applied phosphorus/maximum yield) x 100] regressed against these tests. The equilibrium phosphorus concentration-the intensity measure-accounted for the greatest percentage variation in relative yield (80%) and at 90% maximum yield was 0.014 �g P/ml. Phosphorus extracted by 0.01 M CaCl2 was highly correlated with the equilibrium phosphorus concentration (r2=0.93) and accounted for 73% of the variation in relative yield. Soil levels of calcium chloride-extractable phosphorus were interpreted as follows: < 0.044 �g P/g, response to phosphorus probable; 0.044 �g P/g to 0.058 �g P/g, response uncertain; > 0.058 �g P/g, response unlikely

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Effect of kinetic control, soil:solution ratio, electrolyte cation, and others, on equilibrium phosphorus concentration

Geoderma ◽

10.1016/j.geoderma.2011.12.027 ◽

2012 ◽

Vol 173-174 ◽

pp. 209-214 ◽

Cited By ~ 10

Author(s):

Jehangir H. Bhadha ◽

Samira H. Daroub ◽

Timothy A. Lang

Keyword(s):

Phosphorus Concentration ◽

Kinetic Control ◽

Equilibrium Phosphorus Concentration

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Distribution and Adsorption Characteristics of Phosphorus at A Headwater Wetland in Ichikawa City, Chiba Prefecture, Japan

Environment and Pollution ◽

10.5539/ep.v5n1p31 ◽

2016 ◽

Vol 5 (1) ◽

pp. 31 ◽

Cited By ~ 1

Author(s):

Jingqiu Piao ◽

Changyuan Tang ◽

Toma Matsumaru ◽

Zhiwei Han ◽

Hiroki Sakaguchi ◽

...

Keyword(s):

Quality Standard ◽

Phosphorus Concentration ◽

Phosphorus Fraction ◽

Limit Of Quantification ◽

Phosphorus Adsorption ◽

Dissolved Phosphorus ◽

Adsorption Characteristics ◽

Equilibrium Phosphorus Concentration ◽

Chiba Prefecture ◽

Headwater Wetland

<p>The distribution and adsorption characteristics of phosphorus were investigated in a typical headwater wetland in Ichikawa City, Chiba Prefecture, Japan. Total dissolved phosphorus (TDP) was the main phosphorus fraction in the waters, ranging from limit of quantification (0.002 mg/L) to 0.059 mg/L in spring water, from limit of quantification to 0.128 mg/L in groundwater and from 0.012 to 0.048 mg/L in river water. TDP in 33% water samples were higher than the environmental quality standard for eutrophication (0.020 mg/L). Next, phosphorus adsorption experiment was conducted to study phosphorus distribution in the aquifer where the equilibrium phosphorus concentration (C<sub>EPC</sub>) is the key to access the phosphorus in the waters. In addition, the amount of TDP releasing from the wetland through river was 20.9 g/day.</p>

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ADSORPTION OF PHOSPHORUS BY FOUR SASKATCHEWAN SOILS

Canadian Journal of Soil Science ◽

10.4141/cjss59-009 ◽

1959 ◽

Vol 39 (1) ◽

pp. 64-75 ◽

Cited By ~ 28

Author(s):

D. A. Rennie ◽

R. B. McKercher

Keyword(s):

Adsorption Capacity ◽

Soil Solution ◽

Equilibrium Concentration ◽

Phosphorus Concentration ◽

Soil Suspension ◽

Equilibrium Studies ◽

Phosphorus Adsorption ◽

Average Value ◽

Equilibrium Phosphorus Concentration ◽

Phosphorus Saturation

The adsorption of phosphorus by four soils of differing colloid content showed close agreement with the Langmuir isotherm when final phosphorus solution concentrations were less than 20 μg. P/ml. Calculated adsorption maximum for the four soils were 79.1, 87.7, 150.4 and 164.4 μg. P per g. of soil. The average value of the constant k, related to the bounding energy of the soil for phosphorus, was 0.141.The percentage phosphorus saturation of the adsorption maximum was closely correlated with the equilibrium phosphorus concentration in the soil suspension. At an equilibrium concentration of 28.7 μg. P/ml., 100 per cent saturation of the adsorption capacity of the four soils was obtained; the total adsorbed phosphorus on the four soils was not related to the phosphorus concentration of the soil solution but varied considerably depending on the colloid content of the respective soils.Carbonated water extractable phosphorus, and 'surface' phosphorus measured by P32 equilibrium studies, were not related to the equilibrium concentration of phosphorus of the soil solution. It appears that the percentage phosphorus saturation of the adsorption maximum may prove a more reliable measure of the capacity of the soil to supply phosphorus to the soil solution than either of the 'quick' tests used.Organic matter appeared to be equally as important as the inorganic colloids in determining the phosphorus adsorption capacity of the soils. Differences in exchangeable calcium were not closely related to the adsorption maximum.

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A peek in the micro-sized world: a review of design principles, engineering tools, and applications of engineered microbial community

Biochemical Society Transactions ◽

10.1042/bst20190172 ◽

2020 ◽

Vol 48 (2) ◽

pp. 399-409

Author(s):

Baizhen Gao ◽

Rushant Sabnis ◽

Tommaso Costantini ◽

Robert Jinkerson ◽

Qing Sun

Keyword(s):

Microbial Community ◽

Microbial Communities ◽

Environmental Remediation ◽

Real Life ◽

Design Principles ◽

Microbial Interactions ◽

Potential Applications ◽

New Gene ◽

Global Biogeochemical Cycles ◽

Synthetic Microbial Communities

Microbial communities drive diverse processes that impact nearly everything on this planet, from global biogeochemical cycles to human health. Harnessing the power of these microorganisms could provide solutions to many of the challenges that face society. However, naturally occurring microbial communities are not optimized for anthropogenic use. An emerging area of research is focusing on engineering synthetic microbial communities to carry out predefined functions. Microbial community engineers are applying design principles like top-down and bottom-up approaches to create synthetic microbial communities having a myriad of real-life applications in health care, disease prevention, and environmental remediation. Multiple genetic engineering tools and delivery approaches can be used to ‘knock-in' new gene functions into microbial communities. A systematic study of the microbial interactions, community assembling principles, and engineering tools are necessary for us to understand the microbial community and to better utilize them. Continued analysis and effort are required to further the current and potential applications of synthetic microbial communities.

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2 EFFECTS OF AN IBD-ASSOCIATED MICROBIAL COMMUNITY STATE ON INTESTINAL INFLAMMATION IN HUMANIZED GNOTOBIOTIC MICE

Gastroenterology ◽

10.1053/j.gastro.2019.11.168 ◽

2020 ◽

Vol 158 (3) ◽

pp. S66

Author(s):

Venu Lagishetty ◽

Nerea Arias ◽

Tien Dong ◽

Meg Hauer ◽

William Katzka ◽

...

Keyword(s):

Microbial Community ◽

Intestinal Inflammation ◽

Gnotobiotic Mice

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Microbial community structure and dynamics in restored subtropical seagrass sediments

Aquatic Microbial Ecology ◽

10.3354/ame01725 ◽

2015 ◽

Vol 74 (1) ◽

pp. 43-57 ◽

Cited By ~ 7

Author(s):

AS Bourque ◽

R Vega-Thurber ◽

JW Fourqurean

Keyword(s):

Community Structure ◽

Microbial Community ◽

Microbial Community Structure ◽

Structure And Dynamics

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Method application of optimal multi-parameter analysis to assess the distribution of water masses as an example of CTD data of the Barents Sea in summer 2017

Hydrosphere Еcology (Экология гидросферы) ◽

10.33624/2587-9367-2019-2(4)-38-51 ◽

2019 ◽

pp. 38-51

Author(s):

Valeriy G. Yakubenko ◽

Anna L. Chultsova

Keyword(s):

Barents Sea ◽

Field Measurements ◽

Structural Similarity ◽

Water Masses ◽

Parameter Analysis ◽

Water Dynamics ◽

Phosphorus Concentration ◽

Nitrogen And Phosphorus ◽

The Barents Sea ◽

Expert Assessments

Identification of water masses in areas with complex water dynamics is a complex task, which is usually solved by the method of expert assessments. In this paper, it is proposed to use a formal procedure based on the application of the method of optimal multiparametric analysis (OMP analysis). The data of field measurements obtained in the 68th cruise of the R/V “Academician Mstislav Keldysh” in the summer of 2017 in the Barents Sea on the distribution of temperature, salinity, oxygen, silicates, nitrogen, and phosphorus concentration are used as a data for research. A comparison of the results with data on the distribution of water masses in literature based on expert assessments (Oziel et al., 2017), allows us to conclude about their close structural similarity. Some differences are related to spatial and temporal shifts of measurements. This indicates the feasibility of using the OMP analysis technique in oceanological studies to obtain quantitative data on the spatial distribution of different water masses.

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