African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5233

Table of Content: 28 January, 2015; 9(4)

January 2015

Significance of Archaea in terrestrial biogeochemical cycles and global climate change

Our understanding of the role of archaea, and their significance, in the biosphere has changed substantially with recent advances in molecular techniques. Large numbers of environmental rRNA gene sequences currently flooding into GenBank illustrates that, archaea are ubiquitous and sometimes quantitatively abundant in the environment. Their importance in carbon (C) and nitrogen (N) turnover in marine ecosystems and...

Author(s): Garima Dubey, Bharati Kollah, Usha Ahirwar, Sneh Tiwari and Santosh Ranjan Mohanty

January 2015

Optimization of agroindustrial medium for the production of carotenoids by wild yeast Sporidiobolus pararoseus

This study addresses the optimization of agroindustrial medium used to obtain carotenoids with the wild yeast, Sporidiobolus pararoseus. The optimal condition for the production of total carotenoids was achieved in 168 h obtaining 779.60 µg/L (65.64 µg/g) with 30 g/L of raw glycerol (from the synthesis of biodiesel) and 52.9 g/L of corn steep liquor at 25°C and 180 rpm. The formulation of another culture...

Author(s): Whallans Raphael Couto Machado and Janaina Fernandes de Medeiros Burkert

January 2015

Hexavalent chromium biosorption by dried biomass of Aspergillus niger NUA101 isolated from Indian ultramafic complex

Mining operations in Sukinda and Baula-Nuasahi region of Orissa, India have led to the generation of a huge amount of overburden with considerable amount of chromium. Weathering of chromium by the natural agencies often contaminates the water sources of the region. Microbes indigenous to this environment having the potential of accumulating metals could be employed for removal as well as detoxification of heavy metals....

Author(s): Suchhanda Ghosh, Arkamitra Mondal and A. K. Paul

January 2015

Î’eta-mannanase activity of Trichosporonoides oedocephalis evaluated in different process parameters

The present study was carried out to investigate the optimal culture conditions for β-mannanase production by Trichosporonoides oedocephalis using cheap and easily available agro-wastes as the carbon source in solid state cultivation. The effect of process parameters like incubation time, carbon source, incubation temperature, pH, percentage moisture content and inoculum concentration were optimized for enhanced...

Author(s): Oladipo Oladiti Olaniyi, Oluyemisi Folasade Ibitoye and Emmanuel Olufemi Bankefa

January 2015

Molecular characterization and phenotypic analysis of multidrug-resistant Escherichia coli and Klebsiella pneumoniae isolates from a tertiary-care hospital in Yunnan Province, China

Due to the increasing number of multidrug-resistant (MDR) isolates of Escherichia coli and Klebsiella pneumoniae reported from the Third People’s Hospital of Yunnan Province, an investigation was conducted to better understand the phenotype and molecular characterization of the local isolates. Twenty three non-duplicate E. coli isolates and nine K. pneumoniae isolates were recovered from hospitalized patients and...

Author(s): Tan, H. L.#, Wang, Y.,#, Cheng, X. Q.#, Huang, Y. M. and Zhang, L. J.

January 2015

Heterotrophic microbial count during vemicomposting of municipal solid waste

Vermicomposting is a non-thermophilic biodegradation of organic material through interaction between earthworm and micro-organisms resulting in production of vermicompost. This study emphasizes on the heterotrophic microbial count during vermicomposting of the organic content of municipal solid waste. The heterotrophic microbial count (bacteria, fungi and actinomycetes) of the vermicomposts of municipal organic solid...

Author(s): Subhani Rath and D. K. Bastia

January 2015

Study of the presence of Salmonella spp. and gastrointestinal parasites in excreta from ornamental birds from breeders in the city of Umuarama, Paraná

Pets have been associated with emotional and physical benefits for their owners, and among these, ornamental birds can bring positive influences on quality of life. On the contrary, they harbor pathogenic micro-organisms of public health importance. Thus, this study aimed to investigate the presence of Salmonella spp. and intestinal parasites in 52 samples of excreta of passerines and parrots from breeders in the city...

Author(s): Paulo Medeiros Almeida, Luciana Kazue Otutumi, Edson Gerônimo, Valdeci Messa, Sarah Satie Suenaga, Patrícia Franco Gonçalves Previato do Amaral, Edna Tereza de Lima, Anorita Vendrame, Daniela Dib Gonçalves and Igor Eduardo Dias Cestari

January 2015

Influence of psychrotolerant plant growth-promoting rhizobacteria (PGPR) as coinoculants with Rhizobium on growth parameters and yield of lentil (Lens culinaris Medikus)

Cold-tolerant plant growth-promoting rhizobacteria (PGPR) are of immense agronomic importance due to the fact that the winter season crop growing cycle is subject to varying spells of low temperatures and such PGPRs are metabolically functional at cold conditions. Thirty-five (35) rhizobacterial isolates were isolated from lentil rhizospheric soil, six isolates showing maximum exponential growth at both 10 and 15°C...

Author(s): Jaskiran Kaur, Veena Khanna, Poonam Kumari and Rupali Sharma