scholarly journals Keratinolytic and keratinophilic fungi of mangrove's soil and air in the city of Qena and their response to garlic extract and onion oil treatments

2014 ◽  
Vol 31 (1) ◽  
pp. 87-99 ◽  
Author(s):  
Youssuf A. Gherbawy

Forty-eight species and l variety belonging to 25 genera were collected from 50 soil samples (41 species and l variety and 21 genera) and the atmosphere (27 species and l variety and 14 genera) of mangrove in the city Qena using hair baiting technique at 28"C. Twenty of these species was dermatophytes and closely related fungi. The most common and frequent species of the latter fungi were <i>Aphanoascus fulvescens</i> (telemorph of <i>Chrysosporium keratinophilum), A. terreus (C. indicum). Aphanoascus</i> sp. <i>(C. tropicum)</i> and <i>Chrysosporium xerophilum</i>. Sixty-eight isolates were tested for the abilites for growth on hair - sand medium. Most (73.5 %) had moderate growth rate. All keratinophilie fungi recovered in the present investigation were sensitive to garlic extract and onion oil.

2020 ◽  
Vol 41 (6) ◽  
pp. 1521-1525
Author(s):  
O.A. Günyar ◽  
◽  
S. Kıraç ◽  
B. Aldı ◽  
C. Ergin ◽  
...  

Aim: To isolate and identyfy keratinophilic fungi from soil samples excavated excavation area within the ancient city of Stratonikeia, Turkey and determination of their enzyme potentials. Stratonikeia, a city in the interior of Caria, located at Eskihisar Village, in the Yatagan district of Mugla province of Turkey. Methodology: Keratin bating technique was applied for isolating of dermatophytes and keratinophilic fungi. Fungal isolate were identified by phenotyping and genotyping methods. Screening of protease, keratinase, cellulose, lipase and cutinase enzyme was carried at solid medium. Results: Non-dermatophyte species, viz., Aspergillus fumigatus, Engyodontium album, Chrysosporium keratinophilum, Lecanicillium lecani and Purpureocillium lilacinum were identified. Protease, keratinase and cellulase were determined at moderate and high levels, while lipase and cutinase were not recorded. Interpretation: Non-dermatophyte strains having high keratinase, cellulase and protease activities are not only involved in pathogenesis, but also have a great ecological significance due to keratin degrading potential.


2018 ◽  
Vol 14 (14) ◽  
pp. 33 ◽  
Author(s):  
Patricia Fragoso-Servón ◽  
Alberto Pereira-Corona

The Mexican Caribbean and its main cities have the highest population growth rate in Mexico. This work goal was to analyze the growth of the city of Chetumal and the geopedological characteristics in which it has been developed, to identify potential hazards and thereby improve development programs. The methodology consisted in the study of geopedological characteristics and the analysis of land use changes in the city over time. The main problems of Chetumal are floods and subsidence. Floods are more common in areas where Gleysols soils are found in low-lying areas. The subsidence is associated to Leptosols with a phreatic mantle at a shallow depth where the precipitations favors dissolution of rock. The extrapolation of the relationships between geopedological conditions and the area occupied by the city, allows us to suppose that areas which the current Urban Development Program proposes for future city expansion will develop the same problems of subsidence and flooding as the areas already built in sites with similar conditions.


2016 ◽  
Vol 20 (4) ◽  
Author(s):  
ANDRA CRISTINA GAGIU ◽  
ELENA MARIA PICA ◽  
CLAUDIU TANASELIA ◽  
MONICA URSU

Assessing risks related to urban soil contamination represents a key part of pollution management. The current research proposes a quantitative method that defines and highlights unacceptable risks. The applicability of the method is presented in a case study on several urban recreational areas from the city of Cluj-Napoca, Romania. Concentrations of As, Cu, Cd, Zn, Pb, Hg, Co, Ni and Mg were identified in a number of 48 soil samples from 12 intensively used recreational areas in Cluj-Napoca. The proposed risk assessment method is applied, and potential risks are calculated for all locations.


2021 ◽  
Vol 851 (1) ◽  
pp. 012026
Author(s):  
A T Sekarningsih ◽  
W Budianta ◽  
I W Warmada ◽  
H Hinode

Abstract The effect of urbanization and industrialization in the urban city is soil contamination by heavy metals. This study was conducted to assess Pb, Cu, Zn, and Cd, in the soil of Yogyakarta city and its surrounding, Indonesia. The assessment was done by analyzing 45 surface soil samples in the study area, divided into three-zone. They are divided based on the distance of each zone to the center of the city. The zone III is located in the outermost of the study area, and zone I is inside the city. The results of the study showed that generally, the highest concentration of metals was located in zone I, which is located near or directly situated in a city center. The result indicated that Pb and Cd had the highest pollution index compared to Cu and Zn. The pollition load indeks (PLI) and geoaccumulation indeks (Igeo) calculations in the whole study area showed that the values demonstrated a moderate class in average. Special attention was needed to be given to the zone I, which has a higher PLI and Igeo index to reduce the source of emission for Pb and Cd.


2021 ◽  
Vol 21 (1) ◽  
pp. 23
Author(s):  
Supiati Supiati ◽  
Andi Hafidah ◽  
Abdul Haeba Ramli

<p><em>Retribution is an important source of Regional Budget Revenue (PAD) in the city of Makassar. The budget charged by the Makassar City Government to the PD. Makassar Raya Market.</em></p><em>This study aims to evaluate the management system of market levies and the contribution of market levies to increase Makassar City's Regional Original Income (PAD) and to formulate a more appropriate market levy management system to maximize PD revenue. Makassar Raya Market, Makassar City. The data used in this study are secondary in the form of documents and records related to market retribution income, and primary data in the form of daily reports of the recipient's cash-holding assistant as well as collection reports and proof of deposit of the recipient's treasurer into cash through the City Regional Development Bank (BPD). Makassar. The results of the study show that local revenue from market levies is in a very effective category, this is indicated by an average value of 100.28%, and Pasat Levies have a very large influence and contribution to Local Ownership in Makassar City, this can be shown by the average value of the contribution is 102.25%, while the growth rate of market levies explains that the growth rate with an average value is 9.69 which indicates the unsuccessful category The growth rate of market levies explains that the growth rate with an average value is 9.69 which indicates the unsuccessful category.</em>


2020 ◽  
Vol 87 ◽  
Author(s):  
Dannyelle Cristine Orsolin de Morais ◽  
Marco Aurélio Tramontin ◽  
Vanessa Andaló

ABSTRACT: Entomopathogenic nematodes (EPNs) are potential candidate for integrated pest management programs. As little is known about the presence of these organisms in the state of Santa Catarina, it was aimed to perform soil sampling in the cities of Chapecó, Palmitos, Seara and Concordia for the isolation of EPNs. In total, 200 samples (100 g soil) were collected. In Chapecó, 40 samples from soil containing green manure (Raphanus sativus), five samples from native forest area and five samples from riparian forest were collected. In the city of Palmitos, 40 soil samples were obtained in the areas of soybean (Glycine max), corn (Zea mays), oats (Avena strigosa), and pasture (Pennisetum purpureum), and in each location 10 samples were taken. Sixty soil samples were collected in the city of Concordia, in a pasture area (A. strigosa). In Seara, the 50 soil samples were collected at a pasture consortium site between ryegrass (Lolium multiflorum) and black oats (A. strigosa). For the isolation, the collected soil samples were conditioned in 350 mL plastic containers and sent to the laboratory of the university. Later, four larvae of Tenebrio molitor of last instar were inserted, and the sets were maintained at the temperature of 25°C for seven days. After this period, the presence of dead larvae was verified, and the confirmation of the mortality by EPNs was evaluated using of White’s trap. The positive samples for EPNs were obtained from the cities of Chapecó and Concordia, which corresponded to 2% of the total soil samples.


2013 ◽  
Vol 55 (4) ◽  
pp. 229-231 ◽  
Author(s):  
Luciane Madureira Ribeiro ◽  
Ruth Massote Dracz ◽  
Lanuze Rose Mozzer ◽  
Walter dos Santos Lima

SUMMARY To evaluate soil contamination by parasites in different developmental stages in public squares used as recreation and leisure areas for children in Belo Horizonte (MG, Brazil), 210 soil samples and 141 canine fecal samples were collected from 42 squares in the city. These samples were analyzed by the Caldwell and Caldwell technique and the Hoffman, Pons, and Janer technique. Of the samples analyzed, 89 (42.4%) soil samples and 104 (73.5%) fecal samples were contaminated with Ancylostoma sp., Toxocara sp., Trichuris sp., or Dipylidium sp. eggs; Giardia sp. cysts; or Isospora sp. oocysts. The commonest parasite was Ancylostoma sp., found in 85% soil and 99% fecal samples, followed by Toxocara sp., found in 43.7% soil and 30.7% fecal samples.


Author(s):  
Hijrah Yanti Sitanggang ◽  
Vera Irma Delianti

The problem of population is one of the problems in the Province of West Sumatra, especially in the City of Padang, Kota Bukitinggi, and the City of Payakumbuh which has a very fast population growth rate, this occurs due to several factors such as births, deaths, residents who come, and residents who leave. The highest population growth occurred in Padang City in 2018 amounting to 939,112 residents and the smallest population growth occurred in the City of Bukitinggi in 2014 amounting to 120,491 residents. The purpose of this study is to predict population growth that will occur in 2019 in the cities of Padang, Bukittinggi and Payakumbuh. The method used in this research is descriptive correlational by applying backpropagation neural networks. The application used is Matlab. Based on the problems and methods obtained, the predicted results in 2019 in Padang City amounted to 124,7150, Bukittinggi numbered 126,8040 and Payakumbuh totaled 128.7830.  Keywords: Artificial Neural Networks, Backpropagation, Matlab.


1997 ◽  
Vol 48 (6) ◽  
pp. 831 ◽  
Author(s):  
M. J. McPhee ◽  
J. F. Ayres ◽  
M. L. Curll

This paper reports on the growth periodicity of introduced temperate perennial pastures in a summer-rainfall environment in the high-rainfall zone of eastern Australia. Data were derived from an experiment (1985-87) directed at evaluating pasture cultivars when sown in binary mixtures grazed by sheep. The data were also simulated by using the decision support system SheepO (Version 4·0) and validated by visual techniques, deviance measures, and statistical tests. The model simulated pasture growth rate and total biomass with acceptable accuracy. The study provided a quantification of the growth rhythm of temperate perennial pastures in this environment. The data show that growth rhythm comprises a high growth rate (>50 kg DM/ha·day) during the primary growth cycle in spring, a moderate growth rate (20-50 kg DM/ha·day) during the secondary growth cycle in summer-autumn, and low growth rate (<20 kg DM/ha·day) in winter. The growth performance of introduced pastures based on cv. Demeter tall fescue (Festuca arundinacea) exceeded that of pastures based on cv. Sirosa phalaris (Pharlaris aquatica) in all seasons, at low and high stocking rates, and in all 3 years. The results highlight the potential for pasture cultivars with enhanced seasonal growth rate to increase the pasture feed supply for grazing animals.


2017 ◽  
Author(s):  
Ali Khatibi ◽  
Sharareh Pourebrahim ◽  
Mazlin Mokhtar

Abstract. In this study, in the city of Karaj five classes of land use-cover including residential, agriculture, rangeland, forest and barren areas were considered and randomly in each class a total of 20 points were selected and vegetation and soil samples were taken. In plant samples, the amount of carbon sequestration was determined by calculating the amount of organic carbon by dry weight and in soil samples, the amount of carbon sequestration was determined by using Walleky and Black method, too. For each area, the average value of carbon sequestration of samples was introduced as carbon sequestration index of that class. Average values for each category were determined as an indicator of carbon sequestration of that class and then by using the DINAMICA EGO software a simulation was conducted using cellular automata approach to simulate changes in the classes of land use-cover in the city of Karaj. Finally, by using carbon sequestration index and the results of the simulation, changes in carbon sequestration in each class were calculated. On this basis, it was found that in the 15-year period from 2014 to 2029, not considering the residential class as the effective use of carbon sequestration, the greatest amount of carbon sequestration was found in the agricultural class and the lowest carbon sequestration was found in barren area. Also, agriculture class will be faced with the huge reduction of carbon sequestration, because of expansion of the residential area.


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