Diversity and characteristics of yeasts from water sources in the North West Province, South Africa

2012 ◽  
Vol 12 (4) ◽  
pp. 422-430
Author(s):  
D. A. B. Van Wyk ◽  
C. C. Bezuidenhout ◽  
O. H. J. Rhode
Keyword(s):  
South Africa ◽  
Water Sources ◽  
Malt Extract ◽  
Chemical Parameters ◽  
Candida Spp ◽  
North West ◽  
The North ◽  
Physico Chemical ◽  
North West Province ◽  
Cryptococcus Spp

Yeasts form an important part of ecosystems. Yeast biodiversity in the North West Province, South Africa, remains largely unexplored. The purpose of this study was to determine the diversity and characteristics of yeasts from water sources in the North West Province. Yeasts were isolated from four rivers and an inland lake. Various parameters were measured to determine the physico-chemical quality of the water. Isolation was done on yeast-malt-extract (YM) agar and identified using biological methods. Physico-chemical parameters were within a target water quality range for various water uses. Yeasts were detected at 22 of the 23 sampling sites. Levels ranged from 3 to 8,680 cfu/L and were broadly divided into pigmented and non-pigmented yeasts. Pigmented yeasts could potentially be an indication of pollution, while non-pigmented yeasts could potentially be pathogenic species. Levels of yeasts could be statistically associated with some physico-chemical parameters. A large percentage of isolated yeasts could grow at temperatures ranging from 4 to 40 °C. Candida spp., Cryptococcus spp., Rhodotorula spp. and Zygosaccharomyces spp. were identified. Our results provide preliminary information on the distribution and diversity of yeasts in water sources in the North West Province.

Goat farmers production objectives and trait preferences in the North West province of South Africa: An approach to identify selection criteria for community-based breeding program

2021 ◽  
Vol 12 (2) ◽  
pp. 64-75
Author(s):  
Fortunate Mtshali Thobile ◽  
Ntanganedzeni Mapholi Olivia ◽  
Tebogo Ncube Keabetswe ◽  
Farai Dzomba Edgar ◽  
C. Matelele Tlou ◽  
...  
Keyword(s):  
South Africa ◽  
Selection Criteria ◽  
Breeding Program ◽  
Community Based ◽  
North West ◽  
The North ◽  
North West Province ◽  
Trait Preferences ◽  
Production Objectives

scholarly journals Draft Genome Sequences of Potentially Pathogenic Clostridium perfringens Strains from Environmental Surface Water in the North West Province of South Africa

2019 ◽  
Vol 8 (32) ◽  
Author(s):  
Johannes Cornelius Jacobus Fourie ◽  
Tomasz J. Sanko ◽  
Cornelius Carlos Bezuidenhout ◽  
Charlotte Mienie ◽  
Rasheed Adegbola Adeleke
Keyword(s):  
South Africa ◽  
Surface Water ◽  
Clostridium Perfringens ◽  
Draft Genome ◽  
Anthropogenic Factors ◽  
Genome Sequences ◽  
Content Type ◽  
North West ◽  
The North ◽  
North West Province

Surface water systems in South Africa are experiencing a major decline in quality due to various anthropogenic factors. This poses a possible health risk for humans. Here, we present the draft genome sequences of three Clostridium perfringens isolates obtained from a fecally polluted river system in the North West province of South Africa.

scholarly journals Evaluation of Factors Influencing the Inclusion of Indigenous Plants for Food Security among Rural Households in the North West Province of South Africa

2020 ◽  
Vol 12 (22) ◽  
pp. 9562
Author(s):  
Abiodun Olusola Omotayo ◽  
Adeyemi Oladapo Aremu
Keyword(s):  
South Africa ◽  
Logistic Regression ◽  
Food Security ◽  
Food System ◽  
Rural Households ◽  
Binary Logistic Regression ◽  
Indigenous Plants ◽  
North West ◽  
The North ◽  
North West Province

Underutilised indigenous plants can support and strengthen the existing food system, as they are considered as socio-economically and environmentally appropriate. These plants generally adapt to marginal conditions, which is essential for a resilient agriculture and sustainable food systems. The current study relied on food security and indigenous plants data collected from some selected rural households from the North West Province of South Africa. The utilised data were collected through a multi-stage sampling technique with the aid of a pre-tested semi-structured questionnaire, while descriptive methods Foster–Greer–Thorbecke (FGT) and binary logistic regression were used for data analysis. The models produced a good fit for the data, and the computed F-value was statistically significant (p < 0.01). The study examined socio-economic and food security status based on the knowledge and the perception of indigenous plants by the households. The incidence of food insecurity (θ0) was 0.4060, indicating that 40.6% of the participants were food insecure while 59.4% were food secured. Binary logistic regression results indicate that factors such as age, gender, educational attainment, inclusion of indigenous plants in diet, food expenditure, and access in the study area impacted results. It was also evident that the participants had considerable knowledge of indigenous plants. However, these indigenous plants were not cultivated or included in the diet by the majority of the participants. The formulation of appropriate holistic policies that support the incorporation of the indigenous plants into the food system is recommended.

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