Yeasts isolated from artificial lake waters

1992 ◽  
Vol 38 (11) ◽  
pp. 1206-1209 ◽  
Author(s):  
Elena Sláviková ◽  
Renáta Vadkertiová ◽  
Anna Kocková-Kratochvílová
Keyword(s):  
Qualitative Study ◽  
Key Words ◽  
Aureobasidium Pullulans ◽  
Yeast Species ◽  
Candida Krusei ◽  
Freshwater Lakes ◽  
Artificial Lake ◽  
Hansenula Anomala ◽  
Rhodotorula Species ◽  
Lake Waters

Fourteen genera and 29 species of yeasts were found in the water of three artificial fresh lakes. The lakes, used for recreational purposes and located in the area of the Lowland Záhorie (Slovakia), were sampled in summer and autumn. Aureobasidium, Hansenula, Candida, and Rhodotorula species occurred the most frequently. The composition of yeast species was more heterogeneous in summer than in autumn. Relatively high population levels of fermentative and pellicle-forming yeasts were found, especially of Candida krusei and Hansenula anomala. The "black yeast" Aureobasidium pullulans was frequently isolated in autumn in high counts in contrast with the numbers of other species. Key words: ecology, yeasts, quantitative and qualitative study, freshwater lakes.

Killer activity of yeasts isolated from the water environment

1995 ◽  
Vol 41 (9) ◽  
pp. 759-766 ◽  
Author(s):  
Renáta Vadkertiová ◽  
Elena Sláviková
Keyword(s):  
Yeast Species ◽  
Water Environment ◽  
Geotrichum Candidum ◽  
Candida Krusei ◽  
Cryptococcus Laurentii ◽  
Cryptococcus Albidus ◽  
Killer Activity ◽  
Hansenula Anomala ◽  
Rhodotorula Species ◽  
Candida Lambica

The killer activity of 46 strains belonging to 12 yeast and yeast-like species isolated from water or sediment samples was studied. Only two strains of the genus Cryptococcus did not show killer activity. Killer activity of yeast-like species Aureobasidium pullulans, Hyphopichia burtonii and Geotrichum candidum, and yeast species Candida krusei and Candida lambica was low. Sporobolomyces salmonicolor, Cryptococcus laurentii and Cryptococcus albidus had better activity against basidiomycetous than ascomycetous species. Hansenula anomala strains showed good activity against Geotrichum candidum strains, Cryptococcus albidus, and Sporobolomyces salmonicolor. Rhodotorula species showed activity against the majority of both ascomycetous and basidiomycetous species.Key words: yeasts, killer activity, sediment and water samples.

scholarly journals New and emerging yeast pathogens.

1995 ◽  
Vol 8 (4) ◽  
pp. 462-478 ◽  
Author(s):  
K C Hazen
Keyword(s):  
Systemic Disease ◽  
Venous Catheter ◽  
The Elderly ◽  
Emerging Pathogens ◽  
Central Venous Catheter Removal ◽  
Hansenula Anomala ◽  
Life Threatening ◽  
Rhodotorula Species ◽  
Seriously Ill Patients ◽  
Trichosporon Beigelii

The most common yeast species that act as agents of human disease are Candida albicans, Candida tropicalis, Candida glabrata, Candida parapsilosis, and Cryptococcus neoformans. The incidence of infections by other yeasts has increased during the past decade. The most evident emerging pathogens are Malassezia furfur, Trichosporon beigelii, Rhodotorula species, Hansenula anomala, Candida lusitaniae, and Candida krusei. Organisms once considered environmental contaminants or only industrially important, such as Candida utilis and Candida lipolytica, have now been implicated as agents of fungemia, onychomycosis, and systemic disease. The unusual yeasts primarily infect immunocompromised patients, newborns, and the elderly. The role of central venous catheter removal and antifungal therapy in patient management is controversial. The antibiograms of the unusual yeasts range from resistant to the most recent azoles and amphotericin B to highly susceptible to all antifungal agents. Current routine methods for yeast identification may be insufficient to identify the unusual yeasts within 2 days after isolation. The recognition of unusual yeasts as agents of sometimes life-threatening infection and their unpredictable antifungal susceptibilities increase the burden on the clinical mycology laboratory to pursue complete species identification and MIC determinations. Given the current and evolving medical practices for management of seriously ill patients, further evaluations of the clinically important data about these yeasts are needed.

scholarly journals The Settlement experience of Salvadoran refugees

2021 ◽  
Author(s):  
Veronica Escobar Olivo
Keyword(s):  
Civil War ◽  
Qualitative Study ◽  
El Salvador ◽  
Key Words ◽  
Lived Experiences ◽  
Country Of Origin ◽  
Structuration Theory ◽  
Theoretical Framework ◽  
Canadian Government

This narrative qualitative study explored the lived experiences of Salvadoran refugees who came to Canada after fleeing the civil war in El Salvador. The research aimed to examine the experience of Salvadoran refugees who arrived between 1980 and 1992. During this period, the Canadian government enacted special measures which allowed for Salvadorans to seek refuge in Canada. The experiences shared by participants explored their experience with the traumas of war, migration and eventual settlement in Toronto. The theoretical framework drew on the coloniality of power and structuration theory. These experiences were considered within a broader context of what it meant to be a Salvadoran refugee in Toronto, both in ongoing connections to their country of origin and their country of settlement over thirty years later. The narratives of the participants provide insights into the complex negotiations into the experiences of refugees forced to flee and reorient themselves in a new society. Key words: Salvadoran, refugees, experiences, civil war, identity, Latinx, Toronto

Studies of the Hydrobiology of a Tropical Lake in North-western Queensland. I. Seasonal Changes in Chemical Characteristics

1979 ◽  
Vol 30 (5) ◽  
pp. 579 ◽  
Author(s):  
TP Farrell ◽  
CM Finlayson ◽  
DJ Griffiths
Keyword(s):  
Ionic Composition ◽  
Sampling Period ◽  
Climatic Conditions ◽  
Chemical Characteristics ◽  
Artificial Lake ◽  
Heavy Metal Concentrations ◽  
Run Off ◽  
Major Nutrients ◽  
Lake Waters ◽  
North Western

The chemical characteristics of the water of Lake Moondarra, an artificial lake in tropical north-western Queensland, are described. Changes in ionic composition, and in the concentrations of major nutrients and heavy metals, were monitored over a 12 month sampling period. Seasonal variations within the lake were strongly influenced by climatic conditions, principally rainfall which affects run-off and dilution by way of the intermittently flowing river and creeks. The results show that, in spite of the considerable input of nutrients, their concentration in the lake waters remains consistently low. The heavy metal concentrations in the lake water are also well below the limits regarded as acceptable for drinking water.

Production of amylases by yeasts

1990 ◽  
Vol 36 (11) ◽  
pp. 751-753 ◽  
Author(s):  
Valter R. Linardi ◽  
Katia M. G. Machado
Keyword(s):  
Enzymatic Activity ◽  
Key Words ◽  
Wheat Bran ◽  
Aureobasidium Pullulans ◽  
Natural Habitats ◽  
Semisolid Medium ◽  
Debranching Enzyme ◽  
Candida Kefyr ◽  
Candida Famata ◽  
High Enzymatic Activity

Yeasts (228) isolated for natural habitats were screened for their ability to produce amylases in semisolid medium of wheat bran. Strains of Aureobasidium pullulans, Candida famata, and Candida kefyr showed high enzymatic activity for α-amylase, glucoamylase, and debranching enzyme. Key words: Aureobasidium, Candida, amylolytic yeasts, α-amylase, glucoamylase.

Interaction between killer strains of Hansenula anomala var. anomala and Saccharomyces cerevisiae yeast species

1985 ◽  
Vol 31 (3) ◽  
pp. 300-302 ◽  
Author(s):  
Gianfranco Rosini
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Yeast Species ◽  
Killer Toxin ◽  
Cross Reaction ◽  
Killing Activity ◽  
Hansenula Anomala ◽  
The Cross

The cross-reaction between 6 killer strains of Saccharomyces cerevisiae and 41 killer strains of Hansenula anomala var. anomala was examined. Fifteen strains of Hansenula killed one or more cultures of S. cerevisiae. None of the killer strains of H. anomala var. anomala was killed by S. cerevisiae killer strains or by killer strains of the same species. In S. cerevisiae different killer toxin and immunity systems were represented. Intraspecific killing activity was not found among the 41 strains of H. anomala var. anomala.

scholarly journals REVOLUTION OF MENTAL IN THE PERSPECTIVE OF PANCASILA EDUCATION

2017 ◽  
Vol 5 (1) ◽  
pp. 31-44
Author(s):  
Alif Lukmanul Hakim ◽  
◽  
Wahyu Dwi Yulianto ◽  
Keyword(s):  
Qualitative Study ◽  
Key Words ◽  
Descriptive Analysis ◽  
Scientific Writing ◽  
Young Generation ◽  
Real Character ◽  
Moral Value ◽  
Background Process ◽  
Critical View ◽  
Global World

This scientific writing merely aims to study further the meaning of mental revolution existing in Indonesia as one of such either program or what later is called national movement in order for the nation itself to generate the nation’s next generation possessing the great and real character of Pancasila. To say more, the study of mental revolution also has an objective or goal for the youth to be able to compete and face actively the change of the global world characteristically based on Pancasila perspective. This study takes the critical view of the young generation who shows almost little or no respect to the application of the value of Pancasila in their daily. In other words, the jubilee tends to ignore the moral value of behavior containing Pancasila. The study then applies the qualitative methode through the study of literature which is then processed using descriptive analysis. This qualitative study furthermore derives the analysis of mental revolution from the perspective of Pancasila education: background, process, and goal of mental revolution itself. To conclude as the last point, it is obtained that the meaning of Pancasika education exceeds the meaning of mental revolution itself, which means thay mental revolution is merely one of such many aspects learnt from the education of Pancasila. Key Words: Mental Revolution, Morality, Pancasila Education

scholarly journals DEMOCRACY AND REGIONAL SHARIA REGULATIONS: A SUKABUMI CASE

Dialog ◽  
2017 ◽  
Vol 40 (1) ◽  
pp. 69-84
Author(s):  
FIRMAN NUGRAHA
Keyword(s):  
Qualitative Study ◽  
Key Words ◽  
The Real ◽  
Low Level ◽  
Majority Group

This article sheds some lights on the implementation of regional sharia regulations (Perda syariah) from the perspective of democracy, focusing on the aspects of representation and accountability. Qualitative study was employed in this research. The study finds out that the presence of regional sharia regulations in the context of democratic Sukabumi is substantially representative. This is due to the fact that Sukabumi people represent the majority group, which is Muslims. However, from the side of accountability, the regulations have low level of accountability since the sharia regulations have not solved the real issues amidst Sukabumi people. KEY WORDS: Accountability, Democracy, Regional Sharia Regulations, Reformation, Representative

scholarly journals The Influence Of Listening Habits Of English Songs Toward Vocabulary Mastery

2009 ◽  
Vol 2 (1) ◽  
pp. 63-80
Author(s):  
Zulianti Zulianti
Keyword(s):  
Qualitative Study ◽  
Key Words ◽  
Positive Influence ◽  
The Third ◽  
Listening Habits ◽  
Descriptive Qualitative

 The objectives of the study are as follows: (1) to find out the intensity of the students‟ habit in listening English songs, (2) to find out the students‟ mastery of English vocabulary, (3) to find out the influences of listening habit of English songs towards vocabulary mastery. This is a descriptive qualitative study. The subjects of study were the third year students of MAN I Temanggung. The result of the research are as follow: (1) the majority of the students‟ listening habits of English songs is good enough that falls on the scores of 68-83, (2) the majority of the students‟ vocabulary mastery is fair that falls on the scores of 65-79, (3) there is a positive influence of listening habits of English songs toward vocabulary mastery. Key Words: Listening habit; English songs; Vocabulary mastery.

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