scholarly journals Assessment of the microbiological activity in agricultural and urban soils

2014 ◽  
Vol 65 (4) ◽  
pp. 156-160 ◽  
Author(s):  
DOROTA DEC
Keyword(s):  
Alkaline Phosphatase ◽  
Acid Phosphatase ◽  
Dehydrogenase Activity ◽  
Urban Soil ◽  
Urban Soils ◽  
Agricultural Soils ◽  
C:N Ratio ◽  
Soil Samples ◽  
Microbiological Activity ◽  
Phosphatase Enzyme

Abstract The aim of this study was to evaluate the enzymatic soil and the number of selected microorganisms in urban soil, which are located in the lane of the reconstructed road and compare it with a soil cultivated for agricultural purposes. The conducted analysis showed significant differences between the results of the soil taken from the roadway and the soil cultivated from agricultural purposes. The C:N ratio in soils of the roadway (from 24 to 31) indicated that they were degraded and heavily degraded soils. Urban soils had a neutral pH. The activity of dehydrogenase (1.93–6.95 μg TPF g−1·h−1), acid phosphatase (2.42–4.92 mM pNP·g−1·h−1) and alkaline phosphatase (2.34–4.80 mM pNP·g−1·h−1) in urban soils were low. In agricultural soils the acid phosphatase enzyme levels ranged 6.32–8.04 mM pNP·g−1·h−1, and alkaline phosphatase were 7.26–9.16 mM pNP·g−1·h−1. In urban soil samples collected along the roadway, a significant correlation between potassium and dehydrogenase activity, and between the C:N ratio and the activity of acid phosphatase was found.

scholarly journals Children’s health risk assessment based on the content of toxic metals Pb, Cd, Cu and Zn in urban soil samples of Podgorica, Montenegro

2015 ◽  
Vol 72 (9) ◽  
pp. 807-812 ◽  
Author(s):  
Boban Mugosa ◽  
Dijana Djurovic ◽  
Aleksandra Pirnat ◽  
Zorica Bulat ◽  
Snezana Barjaktarovic-Labovic
Keyword(s):  
Health Risk ◽  
Toxic Metals ◽  
Urban Soil ◽  
Metal Content ◽  
Urban Soils ◽  
Soil Samples ◽  
Emission Spectrometry ◽  
Group I ◽  
Group Ii ◽  
Cu And Zn

Background/Aim. Due to their low tolerance to pollutants and hand-to-mouth pathways the health risk is very high in children?s population. The aim of this study was to evaluate risk to children?s health based on the content of heavy metals in urban soil samples from Podgorica, Montenegro. This study included the investigation of several toxic metals such as Pb, Cd, Cu and Zn in soil samples from public parks and playgrounds. Methods. Sampling was conducted in a period October-November, 2012. Based on cluster analysis, soil samples were divided into two groups related to similarity of metal content at examinated locations: the group I - near by recreational or residential areas of the city, and the group II - near traffic roads. Concentration of toxic metals, in urban soil samples were determined by a graphite furnace atomic absorption spectrometry (Pb and Cd) and by inductively coupled plasma optical emission spectrometry technique after microwave digestion. Due to exposure to urban soil, non-cancerogenic index hazardous index (HI) for children was estimated using 95th percentile values of total metal concentration. The value of the total (ingestion, dermal and inhalation) HI is calculated for maximum, minimum and the average concentration of metals for children. Results. Mean concentrations of Pb, Cd, Cu and Zn in the surface layer of the studied urban soils were 85.91 mg/kg, 2.8 mg/kg and 52.9 mg/kg and 112.5 mg/kg, respectively. Samples from group II showed higher metal content compared to group I. Urbanization and traffic are the main sources of pollution of the urban soils of Podgorica. Most of the samples (93.5%) had a high Pb content, 12.9% of the samples had a higher content of Cd, while Cu and Zn were within the limits prescribed by national legislation. At one location the level of security for lead is HI = 0.8 and very closed to maximum acceptable value of 1. It is probably the result of intensive traffic near by. Conclusion. All metals investigated showed relatively higher concentrations at sites that were close to industrial places and high ways. The mean concentrations of Pb and Zn and maximum concentrations of Pb, Cd, and Zn were higher than presented values in the National Regulation.

scholarly journals The changes of enzymatic activity of soil under eastern galega (Galega orientalis Lam.) after NPKCa fertilization

2014 ◽  
Vol 60 (No. 3) ◽  
pp. 123-128 ◽  
Author(s):  
B. Symanowicz ◽  
S. Kalesa ◽  
W. Skorupka ◽  
M. Niedbała
Keyword(s):  
Alkaline Phosphatase ◽  
Acid Phosphatase ◽  
Enzymatic Activity ◽  
Field Experiment ◽  
Soil Samples ◽  
Mineral Fertilization ◽  
Legume Plant ◽  
Ap Horizon ◽  
Galega Orientalis ◽  
Enzymatic Activity Of Soil

Changes in the enzymatic activity of soil variably fertilized with NPKCa were investigated in a field experiment carried out in 2005&ndash;2010. The study was conducted with a legume plant, i.e. eastern galega (Galega orientalis Lam.). The experiment was completely randomized and carried out in three replications with the following mineral fertilization: control, N, P, K, NPK, NP, NK, PK, NPKCa, PKCa, Ca, NKCa, and NPCa. Mineral fertilization was applied in kg/ha: (N-20, P-50, K-160, Ca-150). The soil samples collected from the Ap horizon (0&ndash;30 cm) of the rhizosphere in spring after the 1<sup>st</sup>, 2<sup>nd</sup> and 3<sup>rd</sup> swathing had a pH<sub>KCl</sub> in range from 6.55 to 6.93. The activity of acid phosphatase and alkaline phosphatase was at a low level. The highest activity of urease was recorded in the soil fertilized with NPK, whereas the highest activity of dehydrogenases was in the soil fertilized with PKCa.

scholarly journals MICROBIAL ACTIVITY OF DARK RED LATOSOL SAMPLES STORED AT DIFFERENT TEMPERATURES

1998 ◽  
Vol 29 (3) ◽  
pp. 164-166 ◽  
Author(s):  
Francisco Cleber Sousa Vieira ◽  
Ely Nahas
Keyword(s):  
Alkaline Phosphatase ◽  
Acid Phosphatase ◽  
Enzymatic Activity ◽  
Low Temperatures ◽  
Acid Phosphatase Activity ◽  
Room Temperature ◽  
Soil Samples ◽  
Different Temperatures ◽  
Red Latosol ◽  
Enzymatic Activity Of Soil

The enzymatic activity of soil samples stored at temperatures of 5 to -12oC and at room temperature for 0-32 weeks was determined. While alkaline phosphatase and dehydrogenase activity was decreased compared to control in samples stored at low temperatures, acid phosphatase activity showed no significant change.

Soil response to chemicals used in a field experiment

2013 ◽  
Vol 27 (2) ◽  
pp. 151-158 ◽  
Author(s):  
S. Jezierska-Tys ◽  
A. Rutkowska
Keyword(s):  
Alkaline Phosphatase ◽  
Enzymatic Activity ◽  
Field Experiment ◽  
Soil Microorganisms ◽  
Block Design ◽  
Soil Samples ◽  
Alkaline Phosphatases ◽  
Soil Response ◽  
Negative Effect ◽  
Set Up

Abstract The effect of chemicals (Reglone 200 SL and Elastiq 550 EC) on soil microorganisms and their enzymatic activity was estimated. The study was conducted in a field experiment which was set up in the split-block design and comprised three treatments. Soil samples were taken six times, twice in each year of study. The results showed that the application of chemicals generally had no negative effect on the number of soil microorganisms. The application of Reglone 200 SL caused an increase of proteolytic and ureolytic activity and affected the activity of dehydrogenases, acid and alkaline phosphatases in the soil. The soil subjected of Elastiq 550 EC was characterized by lower activity of dehydrogenases, protease, urease and alkaline phosphatase.

KEBERADAAN BAKTERI PELARUT FOSFAT DAN AKTIVITAS ENZIM FOSFATASE TANAH DAERAH PERAKARAN TANAMAN OBAT DARI KEBUN RAYA CIBODAS

2018 ◽  
Vol 6 (3) ◽  
Author(s):  
Suliasih Suliasih
Keyword(s):  
Alkaline Phosphatase ◽  
Soil Sample ◽  
Rhizosphere Soil ◽  
Botanical Garden ◽  
Soil Enzyme ◽  
Soil Samples ◽  
Phosphate Solubilizing Bacteria ◽  
Bacillus Sp ◽  
Phosphate Solubilizing ◽  
Serratia Rubidaea

A study was undertaken to investigate to occurance of phosphate solubilizing bacteria from rhizosphere soil samples of medicine plants in Cibodas Botanical Garden. 13 soil samples of medicine plants are collected randomly The result shows that 71 isolates of phosphate solubilizing bacteria were isolated, and 10 species of these organism was identified as Azotobacter sp, Bacillus sp, Chromobacterium sp, C.violaceum, Citrobacter sp. , Enterobacter sp., E. liquefaciens. Nitrosomonas sp., Serratia rubidaea, Sphaerotillus natans. Azotobacter sp. And Bacillus sp. Are found in all of soil tested. Conversely, Serratia rubidaea is only in the sample from rhizosphere of Plantago mayor The activity of acid alkaline phosphatase in soil tested ranged from 0.78 – 60,18 ugp nitrophenole/g/h, with the higest values being recorded in soil sample from rhizosphere of “Lavender”.Keywords : phosphate solubilizing bacteria, soil enzyme phosphatase

Effects of Kanwa on Rat Gastrointestinal Phosphatases

2010 ◽  
Vol 3 (3) ◽  
pp. 1147-1152
Author(s):  
Jacob Bamaiyi ◽  
Omajali ◽  
Sanni Momoh
Keyword(s):  
Alkaline Phosphatase ◽  
Small Intestine ◽  
Acid Phosphatase ◽  
Sodium Carbonate ◽  
Elevated Level ◽  
Food Additive ◽  
Alkaline Phosphatases ◽  
Acid And Alkaline Phosphatases ◽  
Diagnostic Indices ◽  
High Level

This study investigates the effects of kanwa on rat gastrointestinal phosphatases. The rats were administered 7% w/v concentration of  trona (Kanwa) orally for a period of two weeks in order to investigate how this compound is being used as food additive in some homes in Nigeria. The Kanwa used in this study was the handpicked variety obtained from sellers from Anyigba market in eastern part of Kogi State, Nigeria. Kanwa, a hydrated sodium carbonate (Na2CO3NaHCO3.2H2O) was obtained as a dried lake salt. Acid phosphatase has the ability to dephosphorylate molecules containing phosphate group. The decreased and elevated level in serum or plasma acid and alkaline phosphatases serves as diagnostic indices for various diseases. Results showed that there was increase and decrease of acid phosphatase (ACP) activities in both the stomach and small intestine. The activities of alkaline phosphatase (ALP) fluctuated in the small intestine. However, in the stomach, an increase activity of ALP was noticed throughout the period of ‘Kanwa’ administration. We concluded that although the level of ‘Kanwa’ consumed in most homes may not be toxic if not taken continuously or repeatedly. Thus, continuous consumption should be discouraged as accumulation of high level of ‘Kanwa’ may cause damages or injuries to the various organs/tissues and may disrupt normal body function.

scholarly journals Describing Phosphorus Sorption Processes on Volcanic Soil in the Presence of Copper or Silver Engineered Nanoparticles

Minerals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 373
Author(s):  
Jonathan Suazo-Hernández ◽  
Erwin Klumpp ◽  
Nicolás Arancibia-Miranda ◽  
Patricia Poblete-Grant ◽  
Alejandra Jara ◽  
...  
Keyword(s):  
Organic Matter ◽  
Crop Production ◽  
Agricultural Soils ◽  
Ph Value ◽  
Consumer Products ◽  
Soil Samples ◽  
Engineered Nanoparticles ◽  
P Availability ◽  
Agricultural Crop ◽  
Phosphorus Sorption

Engineered nanoparticles (ENPs) present in consumer products are being released into the agricultural systems. There is little information about the direct effect of ENPs on phosphorus (P) availability, which is an essential nutrient for crop growthnaturally occurring in agricultural soils. The present study examined the effect of 1, 3, and 5% doses of Cu0 or Ag0 ENPs stabilized with L-ascorbic acid (suspension pH 2–3) on P ad- and desorption in an agricultural Andisol with total organic matter (T-OM) and with partial removal of organic matter (R-OM) by performing batch experiments. Our results showed that the adsorption kinetics data of H2PO4− on T-OM and R-OM soil samples with and without ENPs were adequately described by the pseudo-second-order (PSO) and Elovich models. The adsorption isotherm data of H2PO4− from T-OM and R-OM soil samples following ENPs addition were better fitted by the Langmuir model than the Freundlich model. When the Cu0 or Ag0 ENPs doses were increased, the pH value decreased and H2PO4− adsorption increased on T-OM and R-OM. The H2PO4− desorption (%) was lower with Cu0 ENPs than Ag0 ENPs. Overall, the incorporation of ENPs into Andisols generated an increase in P retention, which may affect agricultural crop production.

Smartphone Based Highly Sensitive Visualized Detection of Acid Phosphatase Enzyme Activity

2021 ◽  
Author(s):  
Rui Li ◽  
Yanan Sun ◽  
Lihua Jin ◽  
Xiaohong Qiao ◽  
Cong Li ◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Acid Phosphatase ◽  
Point Of Care ◽  
Rapid Development ◽  
Practical Application ◽  
Fast Analysis ◽  
Highly Sensitive ◽  
Visualized Detection ◽  
Sensitive Method ◽  
Phosphatase Enzyme

With the rapid development of point-of-care (POC) technologies, the improvement of sensitive method featured with fast analysis and affordable devices has become an emerging requirement for the practical application. In...

scholarly journals Bone-Derived Serum Enzymes and Bone Density in Perimenopausal Caucasian Women

1993 ◽  
Vol 30 (2) ◽  
pp. 191-194 ◽  
Author(s):  
J D Johnston ◽  
S Koneru ◽  
T Kuwana ◽  
S B Rosalki
Keyword(s):  
Alkaline Phosphatase ◽  
Acid Phosphatase ◽  
Bone Density ◽  
Femoral Neck ◽  
Serum Levels ◽  
Bone Alkaline Phosphatase ◽  
Serum Enzymes ◽  
Tartrate Resistant Acid Phosphatase ◽  
Vertebral Bone ◽  
Caucasian Women

Serum levels of bone-origin alkaline phosphatase and of tartrate-resistant acid phosphatase were measured in Caucasian women aged 41–69 years who had volunteered for bone densitometry. Bone alkaline phosphatase and tartrate-resistant acid phosphatase were inversely correlated with vertebral bone density and with femoral neck bone density. Bone alkaline phosphatase and acid phosphatase were also significantly correlated, consistent with the concept of ‘coupling’ between osteoblast and osteoclast activity.

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