scholarly journals Role of forest site type in determining bacterial and biochemical properties of soil

2022 ◽  
Vol 135 ◽  
pp. 108557
Author(s):  
Małgorzata Baćmaga ◽  
Jadwiga Wyszkowska ◽  
Agata Borowik ◽  
Jan Kucharski ◽  
Łukasz Paprocki
2011 ◽  
Vol 52 (No. 11) ◽  
pp. 505-514 ◽  
Author(s):  
J. Wyszkowska ◽  
M. Wyszkowski

The aim of the study was to determine how soil contamination with diesel oil affected biochemical properties of soil and to determine whether the application of compost, bentonite or lime could recover the biochemical equilibrium of soil. The experiments were carried out in a greenhouse. Typical Eutric Cambisols soil formed from sandy loam was polluted with the following amounts of diesel oil: 2.5, 5.0 and 10 cm<sup>3</sup>/kg of soil. The results of the tests showed that the contamination of soil with diesel oil at the amount between 2.5 and 10 cm<sup>3</sup>/kg of soil disturbed the biochemical balance of soil. Irrespective of the application of compost, bentonite or lime and regardless which plant species was grown, diesel oil significantly (p = 0.01) stimulated the activity of dehydrogenases, urease, and alkaline phosphatase as well as the nitrification of soil. Enrichment of soil with compost, bentonite or lime stimulated the activity of urease, alkaline phosphatase and nitrification. The activity of dehydrogenases, urease and nitrification of soil, in contrast to the activity of acid phosphatase, was higher in soil under spring oilseed rape than in soil under oats. The activity of dehydrogenases, urease, alkaline phosphatase in soil contaminated with diesel oil was positively correlated with the nitrification of soil. The correlation between the activity of acid phosphatase and soil nitrification was negative.


Metabolites ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 479
Author(s):  
Elizabeth L. Lieu ◽  
Neil Kelekar ◽  
Pratibha Bhalla ◽  
Jiyeon Kim

History suggests that tasteful properties of sugar have been domesticated as far back as 8000 BCE. With origins in New Guinea, the cultivation of sugar quickly spread over centuries of conquest and trade. The product, which quickly integrated into common foods and onto kitchen tables, is sucrose, which is made up of glucose and fructose dimers. While sugar is commonly associated with flavor, there is a myriad of biochemical properties that explain how sugars as biological molecules function in physiological contexts. Substantial research and reviews have been done on the role of glucose in disease. This review aims to describe the role of its isomers, fructose and mannose, in the context of inborn errors of metabolism and other metabolic diseases, such as cancer. While structurally similar, fructose and mannose give rise to very differing biochemical properties and understanding these differences will guide the development of more effective therapies for metabolic disease. We will discuss pathophysiology linked to perturbations in fructose and mannose metabolism, diagnostic tools, and treatment options of the diseases.


2020 ◽  
Author(s):  
Krzysztof Gondek ◽  
Monika Mierzwa Hersztek ◽  
Wojciech Grzyma a ◽  
Tomasz G b

Author(s):  
Gülsen Kaya ◽  
Merve Keskin

With the understanding of the role of antioxidants in preventing degenerative and age-related diseases caused by oxidative stress, and taking into account the multitude of pharmacological applications such as antidiabetic, antifungal, cardioprotection, immunostimulant, interest in plants rich in this respect has increased. Ocimum basilicum L. (purple) is a one-year, fragrant spice herb with its own aroma. In this study, chemical characterization of Ocimum basilicum L. plant was performed and inhibition effects on urease and a-amylase were investigated. Total phenolic content of Ocimum basilicum L. leafs ethanolic and water extracts were 320.08±2.03, 388.15±1.05 mg GAE/100g; total flavonoids were 282.57±1.12, 307.75±0.89 mg QE/100g; antioxidant capacity of samples were 0.46±0.01 and 0.52±0.02  mM Fe+2/mg extract, 0.46±0.01; IC50 values of urease were 18.77±0.22, 20.19±0.15  % and IC50 values of α-amylase were 0.47±0.01, 0.42±0.01 µg/mL, respectively. It is determined that ethanolic extract of leaves is rich in linalool, linolenin, phytol and α-humulene. The datas show that the leaves of the plant may be effective on two important diseases such as Diabetus mellitus and H. pylori.


2014 ◽  
Vol 56 (1) ◽  
pp. 23-29 ◽  
Author(s):  
Ewa Błońska ◽  
Jarosław Lasota

Abstract The aim of this study was to assess the possibility of using biological and biochemical parameters in the evaluation of forest soil quality and changes caused by land use. The study attempted to determine a relationship between the enzymatic activity of soil, the number of earthworms and soil physico-chemical properties. The study was carried out in central Poland in adjoining Forest Districts (Przedbórz and Smardzewice). In soil samples taken from 12 research plots, basic physico-chemical properties, enzyme activity (dehydrogenase, urease) and density and biomass of earthworms were examined. Enzyme activity showed a large diversity within the forest site types studied. The correlations between the activity of the enzymes studied and C/N ratio indicated considerable importance of these enzymes in metabolism of essential elements of organic matter of forest soils. Urease and dehydrogenase activity and earthworm number showed susceptibility to soil pH, which confirmed relationships between enzyme activity and abundance of earthworms and soil pH in H2O and KCl.


2020 ◽  
Vol 741 ◽  
pp. 140446 ◽  
Author(s):  
Joanna Lemanowicz ◽  
Samir A. Haddad ◽  
Agata Bartkowiak ◽  
Robert Lamparski ◽  
Piotr Wojewódzki

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