Browsing by Author "Mwirichia, Romano K."
Now showing items 1-20 of 39
-
16S-rRNA-based analysis of bacterial diversity in the gut of fungus-cultivating termites (Microtermes and Odontotermes species)
Makonde, Huxley M.; Boga, Hamadi I.; Mwirichia, Romano K.; Mackenzie, Lucy; Göker, Markus; Klenk, Hans-Peter (Springer Netherlands, 2013-08-14)The interaction between termites and their gut symbionts has continued to attract the curiosity of researchers over time. The aim of this study was to characterize and compare the bacterial diversity and community structure ... -
Amplicon-based assessment of bacterial diversity and community structure in three tropical forest soils in Kenya
Kenya, Eucharia U.; Kinyanjui, Grace; Kipnyargis, Alex C.; Kinyua, Franklin; Mwangi, Mary; Khamis, Fathiya; Mwirichia, Romano K. (Heliyon, 2022-11)Forest soils provide a multitude of habitats for diverse communities of bacteria. In this study, we selected three tropical forests in Kenya to determine the diversity and community structure of soil bacteria inhabiting ... -
Archaeal Diversity in the Haloalkaline Lake Elmenteita in Kenya
Mwirichia, Romano K.; Cousin, Sylvie; Muigai, Ann W.; Boga, Hamadi I.; Stackebrandt, Erko (Springer-Verlag, 2009-10-06)A non-culture approach was used to study the archaeal diversity in Lake Elmenteita, Kenya. Five different sampling points were selected randomly within the lake. Wet sediments and water samples were collected from each ... -
Bacteria and Archaea diversity within the hot springs of Lake Magadi and Little Magadi in Kenya
Mwirichia, Romano K.; Kambura, Anne Kelly; Kasili, Remmy Wekesa; Karanja, Edward Nderitu; Makonde, Huxley Mae; Boga, Hamadi Iddi (2016-07)Background: Lake Magadi and little Magadi are hypersaline, alkaline lakes situated in the southern part of Kenyan Rift Valley. Solutes are supplied mainly by a series of alkaline hot springs with temperatures as high as ... -
Bacteria and Archaea diversity within the hot springs of Lake Magadi and Little Magadi in Kenya
Mwirichia, Romano K.; Kasili, Remmy W.; Karanja, Edward N.; Makonde, Huxley M.; Boga, Hamadi I.; Kambura, Anne K. (BioMed Central, 2016-06)Background: Lake Magadi and little Magadi are hypersaline, alkaline lakes situated in the southern part of Kenyan Rift Valley. Solutes are supplied mainly by a series of alkaline hot springs with temperatures as high as ... -
Bacterial Diversity in the Haloalkaline Lake Elmenteita
Mwirichia, Romano K.; Cousin, S.; Muigai, A.W.; Boga, Hamadi I.; Stackebrandt, Erko (Springer-Verlag, 2010-06)Lake Elmenteita is one of the alkaline saline lakes within the Kenyan Rift valley. The lake is situated on the floor of the Kenyan Rift Valley at 1,776 m above sea level and has no direct outlet. The microbial diversity ... -
Biocementation Influence on Flexural Strength and Chloride Ingress by Lysinibacillus sphaericus and Bacillus megaterium in Mortar Structures
Mutitu, Daniel Karanja; Wachira, Jackson M.; Mwirichia, Romano K.; Thiong’o, Joseph Karanja; Munyao, Onesmus Mulwa; Genson, Muriithi (Hindawi, 2020-05)The concrete/mortar durability performance depends mainly on the environmental conditions, the microstructures, and its chemistry. Cement structures are subject to deterioration by the ingress of aggressive media. This ... -
Characterization of various Bacillus thuringiensis strains having larvicidal activity on Chilo partellus first-instar larvae, after culture on cost-effective medium, in Kenya
Anyika, D.; Boga, Hamadi I.; Mwirichia, Romano K. (2011)Bacillus thuringiensis strains are widely used in many larvicidal pest control programs. However, the large-scale production of these biolarvicides is very expensive due to the high cost of the production synthetic medium. ... -
Characterization, Enzymatic Activity, and Secondary Metabolites of Fungal Isolates from Lake Sonachi in Kenya
Ndwigah, Ireri F.; Bogai, Hamadi I.; Wanyoike, Wanjiru; Mwirichia, Romano K. (2015-03)The soda lakes of Kenya provide an extreme environment where diverse groups of microorganisms thrive. They are characterized by great variation in temperature, halophillic and alkaliphilic- extreme conditions. Lake Sonachi ... -
Complete genome sequence of Oceanithermus profundus type strain (506T)
Pati, A.; Zhang, X.; Lapidus, A.; Nolan, M.; Lucas, S.; Del Rio, T.G.; Tice, H.; Cheng, J.F.; Tapia, R.; Han, C.; Goodwin, L.; Pitluck, S.; Liolios, K.; Pagani, I.; Kyrpides, N.C.; Klenk, H.P.; Land, M.; Mwirichia, Romano K. (2011)Oceanithermus profundus Miroshnichenko et al. 2003 is the type species of the genus Ocea-nithermus, which belongs to the family Thermaceae. The genus currently comprises two spe-cies whose members are thermophilic and are ... -
Complete genome sequence of Planctomyces brasiliensis type strain (DSM 5305T), phylogenomic analysis and reclassification of Planctomycetes including the descriptions of Gimesia gen. nov., Planctopirus gen. nov. and Rubinisphaera gen. nov. and emended descriptions of the order Planctomycetales and the family Planctomycetaceae
Scheuner, C.; Tindall, B.J.; Lu, Megan; Nolan, M.; Lapidus, A.; Mwirichia, Romano K.; et al. (2014)Planctomyces brasiliensis Schlesner 1990 belongs to the order Planctomycetales, which differs from other bacterial taxa by several distinctive features such as internal cell compartmentalization, multiplication by forming ... -
Complete genome sequence of Syntrophobotulus glycolicus type strain (FlGlyRT)
Han, C.; Mwirichia, Romano K.; Chertkov, O.; Lapidus, A.; Nolan, M.; Brambilla, Evelyne-Marie; et al. (2011)Syntrophobotulus glycolicus Friedrich et al. 1996 is currently the only member of the genus Syntrophobotulus within the family Peptococcaceae. The species is of interest because of its isolated phylogenetic location in the ... -
Complete genome sequence of the gliding freshwater bacterium Fluviicola taffensis type strain (RW262T)
Woyke, T.; Chertkov, Olga; Lapidus, A.; Nolan, Matt; Lucas, S.; Mwirichia, Romano K.; et al. (2011)Fluviicola taffensis O'Sullivan et al. 2005 belongs to the monotypic genus Fluviicola within the family Cryomorphaceae. The species is of interest because of its isolated phylogenetic lo-cation in the genome-sequenced ... -
Complete genome sequence of the thermophilic sulfur-reducer Desulfurobacterium thermolithotrophum type strain (BSAT) from a deep-sea hydrothermal vent
Göker, M.; Daligault, H.; Mwirichia, Romano K.; Lapidus, A.; Lucas, S.; Deshpande, S.; et al. (2011)Desulfurobacterium thermolithotrophum L'Haridon et al. 1998 is the type species of the ge-nus Desulfurobacterium which belongs to the family Desulfurobacteriaceae. The species is of interest because it represents the first ... -
Development of cost-effective media for the culture of Chilo partellus larvicide in Kenya
Anyika, D.; Boga, Hamadi I.; Mwirichia, Romano K. (Academic Journals, 2013-03)Stem borers (Chilo partellus) are important field insect pests of maize (Zea mays L.) and sorghum (Sorghum bicolor L.) in Africa. They account for more than 30% yield losses depending on the composition of the pest community. ... -
Diversity and structure of prokaryotic communities within organic and conventional farming systems in central highlands of Kenya
Karanja, Edward N.; Fliessbach, Andreas; Adamtey, Noah; Kambura, Anne Kelly; Musyoka, Martha; Fiaboe, Komi; Mwirichia, Romano K. (PLOS, 2020-08)Management practices such as tillage, crop rotation, irrigation, organic and inorganic inputs application are known to influence diversity and function of soil microbial populations. In this study, we investigated the ... -
Diversity of esterase and lipase producing haloalkaliphilic bacteria from Lake Magadi in Kenya
Kiplimo, Denis; Mugweru, Julius; Kituyi, Sarah; Kipnyargis, Alex C.; Mwirichia, Romano K. (2019-09)Lipids are hydrocarbons comprised of long‐chain fatty acids and are found in all living things. In the environment, microorganisms degrade them to obtain energy using esterases and lipases. These enzymes are nowadays ... -
Diversity of fungi in sediments and water sampled from the hot springs of Lake Magadi and Little Magadi in Kenya
Mwirichia, Romano K.; Kambura, Ann K.; Kasili, Remmy W.; Boga, Hamadi Iddi; Karanja, Edward N.; Makonde, Huxley M. (2016-02)Lake Magadi and Little Magadi are saline, alkaline lakes lying in the southern part of Kenyan Rift Valley. Their solutes are supplied by a series of alkaline hot springs with temperatures as high as 86°C. Previous ... -
Diversity of Termitomyces Associated with Fungus- Farming Termites Assessed by Cultural and Culture- Independent Methods
Makonde, H.M.; Boga, Hamadi I.; Osiemo, Z.; Mwirichia, Romano K.; Stielow, J.B.; Go¨ ker, Markus; et al. (2013)Background: Fungus-cultivating termites make use of an obligate mutualism with fungi from the genus Termitomyces, which are acquired through either vertical transmission via reproductive alates or horizontally transmitted ... -
Effects of biocementation on some properties of cement-based materials incorporating Bacillus Species bacteria – a review
Mutitu, Karanja D.; Munyao, Mulwa O.; Wachira, Jackson M.; Mwirichia, Romano K.; Thiong'o, Karanja J. (Taylor and Francis, 2019-11)There is a growing need in the construction industry to improve transfer and durability aspects of Portland pozzolana cement. Ureolytic bacteria have recently emerged as potential micro-organisms well known for precipitation ...