Fresh flowers of Tagetes erecta L., the flavonoid was isolated by extraction and fractionation with different solvents. It was then identified as patulitrin (10mg/100ml) by various tests. It was then subjected to disc diffusion assay to assess its antibacterial potentials against Alcaligens faecalis, Bacillus cereus, Campylobacter coli, Escherchia coli, Klebsiella pneumoniae, Pseudomonas aerugi...

Although Stephanopogon was described as a putative ciliate more than a century ago, its phylogenetic position within eukaryotes has remained unclear because of an unusual combination of morphological characteristics (e.g. a highly multiflagellated cell with discoidal mitochondrial cristae). Attempts to classify Stephanopogon have included placement with the Ciliophora, the Euglenozoa, the Heter...

Twelve strains of methanot-assimi}ating yeast species were examined for their partial base sequences of 18S and 26S rRNAs. In the partial base sequencings of 18S rRNA (positions 1451-1618, 168 bases), P. kodomae had the same partial base sequence as Qgataea minuta, and P. finlandica, P. pini, P. trehatophila, CL maris, and CL methanolovescens were the same in the partial base sequences as O. gl...

Crude extracts from Warburgia ugandensis Sprague, Azadirachta indica, Tagetes minuta and Urtica massaica have been tested against soil pathogens; Fusarium oxysporum, Alternaria passiflorae and Aspergillus niger. The results obtained showed biological activity against these pathogens except for U. massaica extract, which was not active. Separation of the crude extract from W. ugandensis yielded ...

Background and Aims: Although local plants as mosquito repellents are known and used among the different cultures of Africa and beyond, little effort is done to document about the knowledge, usage pattern and their repellency potential in Ethiopia in general and specifically around Gilgelgibe Field Research Centre, Jimma Zone, Southwest Ethiopia. This study was aimed to assess the ethno botanic...