scholarly journals Effect of Environmental Climatic Conditions on levels of Some Hormones, Vitamins and Trace Elements in Blood and Seminal Plasma of Rabbits

2018 ◽  
Vol 1 (1) ◽  
pp. 18-23 ◽  
Author(s):  
Alsaied A Habeeb ◽  
Mona N Sharoud ◽  
Hamdy A Basuony ◽  
Michael I Michael
Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1750
Author(s):  
María Pilar Bernal ◽  
Donatella Grippi ◽  
Rafael Clemente

Phytomanagement of trace element-contaminated soils combines sustainable soil remediation with the use of plant biomass for different applications. Consequently, phytostabilization using plant species useful for bioenergy production has recently received increasing attention. However, the water requirement of most of these species is a limitation for their use under Mediterranean climatic conditions. In this work, eight plant species growing naturally in mine soils contaminated by trace elements were evaluated for their use as bioenergy crops using thermochemical (combustion) and biochemical (anaerobic digestion) methods. The higher heating values of the biomass of the plants studied were all within a narrow range (16.03–18.75 MJ kg−1), while their biochemical methane potentials ranged from 86.0 to 227.4 mL CH4 (g VS)−1. The anaerobic degradation was not influenced by the presence of trace elements in the plants, but the mineral content (mainly Na) negatively affected the potential thermal energy released by combustion (HHV). The highest annual energy yields from biogas or combustion could be obtained by the cultivation of Phragmites australis and Arundo donax, followed by Piptatherum miliaceum. Both options can be considered to be suitable final destinations for the biomass obtained in the phytostabilization of trace element-contaminated soils and may contribute to the implementation of these remediation techniques in Mediterranean areas.


Author(s):  
Yu. A. Azarenko

The data on the content and reserves of trace elements (Mn, Cu, Zn, Co, Mo, B) in soils, reveals patterns of their distribution and quantitative characteristics of relationships in the “soil-plants” system in agrocenoses of the Omsk Irtysh Land have been systematized in the article. The assessment of trace elements in soils and plants has been carried out from the ecological and agrochemical positions. The peculiarities of the intake and accumulation of trace elements in plants depending on zonal soil and climatic conditions have been revealed. Indicators for evaluating the potential of trace elements entering plants have been proposed, and its comparison for diff erent trace elements in the “soil-microfertilizerplant” system has been given. The use of this indicator in calculating and normalizing fertilizer doses and predicting the accumulation of trace elements in plants has been justified. The regularities of the distribution and shape of boron in diff erent types of soils of saline complexes have been studied. For the fi rst time a comprehensive assessment of the effect of high boron concentrations on crop productivity was carried out. A system of indicators for diagnosing the toxic eff ect of the element on plants and a scale of their borostability has been developed. The factors affecting the intake of boron in plants and their resistance to excess of the element have been revealed. Quantitative parameters of the eff ect of chemical reclamation on the boron content in the “soil-meliorant-plants” system have been obtained. The scheme of soil-geochemical zoning of the territory of the Omsk region reflecting the availability of trace elements in the soil has been developed. New data on the availability of trace elements in the main arable soils of the surveyed territory have been presented. The values of optimal levels of trace elements for agricultural crops were corrected. The economic and bioenergetic effi ciency of methods for optimizing plant nutrition with trace elements under the environments of agrocenoses of the Omsk Irtysh Land have been revealed.


Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5457
Author(s):  
Mohsen Al-Omar ◽  
Hamdoon Mohammed ◽  
Salman Mohammed ◽  
Essam Abd-Elmoniem ◽  
Yasser Kandil ◽  
...  

Halophytes are the category of plants growing under harsh conditions of super-salinity, and are wide-spread in the coastal Mediterranean climatic conditions and desert oasis. They are adept at surviving through maintaining excessive production of enzymatic, and non-enzymatic secondary metabolites, especially phenolics and flavonoids that primarily work as anti-oxidants and phytoalexins. Five major halophyte species growing in the kingdom’s Qassim’s high-salted desert regions were investigated for confirming their traditionally used biological activity of sugar-control and anti-infectious properties. In this context, the comparative presence of phenolics, and flavonoids together with anti-microbial, anti-oxidants, and the anti-diabetic potentials of the plants’ extracts were investigated through the α-amylase inhibition method. The highest concentrations of phenolics and flavonoids were detected in Salsola imbricata (360 mg/g of the extract as Gallic-Acid-Equivalents/GAE, and 70.5 mg/g of the extract as Rutin-Equivalents/RE). In contrast, the lowest concentrations of phenolics and flavonoids were detected in Salsola cyclophylla (126.6 mg/g GAE, and 20.5 mg/g RE). The halophytes were found rich in trace elements, a factor for water-retention in high-salinity plants, wherein iron and zinc elements were found comparatively in higher concentrations in Aeluropus lagopoides (4113 µg/kg, and 40.1 µg/kg, respectively), while the copper was detected in higher concentration (11.1 µg/kg) in S. imbricata, analyzed through Inductively Coupled Plasma Optical Emission Spectrometric (ICP-OES) analysis. The anti-oxidant potentials and α-amylase enzyme inhibition-based anti-diabetic activity of S. imbricata was significantly higher than the other halophytes under study, wherein S. cyclophylla exhibited the lowest level of α-amylase inhibition. The maximum DPPH radicals’ (52.47 mg/mL), and α-amylase inhibitions (IC50 22.98 µg/mL) were detected in A.lagopoides. The anti-microbial activity against the Methicillin-Resistant Staphylococcus aureus was strongly exhibited by Zygophyllum simplex (33 mm Inhibition Zone-Diameter, 50 µg/mL Minimum-Inhibitory-Concentration), while Escherichia coli, Enterococcus faecalis, and Candida albicans growths were moderately inhibited by Tamarix aphylla. The current findings exhibited significant differences among the locally distributed halophytic plants species with regards to their bioactivity levels, anti-oxidant potentials, and the presence of trace elements. The ongoing data corroborated the plants’ traditional uses in infections and diabetic conditions. The enhanced local distribution of the plants’ diaspora and higher density of occurrence of these plants species in this region, in comparison to their normal climatic condition’s counterparts, seemed to be affected by humans’ use of the species as part of the traditional and alternative medicine over a period of long time.


Soil Research ◽  
1963 ◽  
Vol 1 (1) ◽  
pp. 74 ◽  
Author(s):  
KG Tiller

The mineralogy and chemistry of weathering and soil formation have been studied at 17 widely separated sites with contrasting climatic conditions on comparatively uniform dolerite in Tasmania. The clay and fine sand mineralogy of the soils has been related to their degree of weathering. These studies have shown large chemical and mineralogical changes accompanying the initial stages of weathering in some krasnozem soils. The reorganization of cobalt, zirconium, nickel, copper, molybdenum, manganese, and zinc during genesis of four soil groups has been considered in terms of the factors involved. Some of these results indicate that the clay horizon of the podzolic soils has probably been formed by weathering in situ. Seasonal waterlogging in certain horizons has strongly mfluenced the chemistry and mineralogy of weathering in many of these soils. This study has shown that the composition of the parent material has only influenced the geochemistry of trace elements in less weathered soils and that pedogenic factors assumed greater significance as the soils became more strongly weathered. Geomorphic processes had a marked influence on the geochemistry of some soils by the truncation of mature soil profiles.


2000 ◽  
Vol 76 (3) ◽  
pp. 207-216 ◽  
Author(s):  
Yeou-Lih Huang ◽  
Wei-Chang Tseng ◽  
Su-Ya Cheng ◽  
Te-Hsien Lin

2020 ◽  
Vol 05 (01) ◽  
pp. 9-13
Author(s):  
Mutaz Ibrahim Hassan ◽  
Abdelrhman Mohamed Sid Ahmed ◽  
Mosab Nouraldein Mohammed Hamad ◽  
Gamal Mahmoud Elimairy

2016 ◽  
Vol 23 (03) ◽  
pp. 274-278
Author(s):  
Jahangir Sultan ◽  
Shafqat Husnain Khan ◽  
Fatima Rashid

Objectives: The objective of this study was to compare the level of traceelements Zinc, Cadmium and lead in seminal plasma and serum of infertile men to the fertileones. Period: June 2014 to August 2015. Setting: Pathology Department of Continental MedicalLahore, attached with Ch. Rehmat Ali Memorial Trust teaching Hospital Methods: A total of 400samples of workers working in different factories for a period of 5 or more years were collected.Out of theses 80 were azoospermic. The relationship of trace elements in serum and seminalplasma of infertile men was compared with the normospermic individual controls. Results: Theconcentration of trace elements Pb and Cd was higher in seminal plasma and serum of infertileindividuals while Zn level was lower. So it is suggested that high levels of Pb and Cd may affectthe fertility and Zn is a crucial element for sperms and fertility in men.


2020 ◽  
Vol 8 (2) ◽  
pp. 279
Author(s):  
G. U. Ozulu ◽  
A. U. Okoro ◽  
V. O. Ndubueze

The petrography and geochemistry of major and trace elements distribution pattern for the Lokoja Sandstones, Southern Bida Basin, Nigeria; were used to interpret their provenance, weathering conditions and paleotectonic setting. A total of seven (7) representative sandstone samples were selected for petrographic, heavy minerals and inorganic geochemical analyses; that is X- ray diffraction (XRD), X-ray fluorescence (XRF) and Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). Results of the petrographic analysis showed 52.14 % quartz, 39.29 % feldspar, 2.00 % rock fragments, 5.14 % matrix and cement fraction as well as 1.43 % unfilled voids. Results of major elements and oxides suggests intermediate to felsic source rocks while the dominance of Na-rich feldspar to the k-feldspar and high value of Fe2O3+MgO shows contribution from ferromagnesian minerals of mafic igneous source provenance and oceanic island arc region. Average concentrations of designated trace elements in the studied sandstones are low in concentrations. The lower concentrations of Cr, Co, and Ni and higher concentrations of Zr, Ba, and Sr suggest a felsic progenitor rock. But significantly high values of Ni (7.02 ppm), La/Co (7.99), and Ni/Co (3.28) as well as the low concentration value of Y, (3.23 ppm) suggests contributions from mafic source rocks. Low average ratios for La/Co, Th/Co, Th/Sc, Ni/Co, Cr/Ni, Cr/Sc, Cr/Th, Ni/Co, Cr/Ni, Cr/Th, Cr/Sc, Th/Sc, La/Co and Th/Co also suggest a felsic source provenance. An average CIA value of 78.04% is indicative of an intense recycling in the source area while an average MIA value of 56.13% suggests a moderate degree of weathering. The high clay matrix and feldspar content have been used to classify the sandstones as feldspathic greywackes deposited in dry arid climatic conditions under a basement uplifted tectonic setting.   


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