Browsing Research Articles (Biochemistry) by UP Author "Cowan, Don A."

Browsing Research Articles (Biochemistry) by UP Author "Cowan, Don A."

Sort by: Order: Results:

  • Agulhas Current properties shape microbial community diversity and potential functionality 
    Phoma, Sandra; Vikram, Surendra; Jansson, Janet K.; Ansorge, Isabelle J.; Cowan, Don A.; Van de Peer, Yves; Makhalanyane, Thulani Peter (Nature Publising Group, 2018-07-12)
    Understanding the impact of oceanographic features on marine microbial ecosystems remains a major ecological endeavour. Here we assess microbial diversity, community structure and functional capacity along the Agulhas ...
  • Biotic interactions are an unexpected yet critical control on the complexity of an abiotically driven polar ecosystem 
    Lee, Charles K.; Laughlin, Daniel C.; Bottos, Eric M.; Caruso, Tancredi; Joy, Kurt; Barrett, John E.; Brabyn, Lars; Nielsen, Uffe N.; Adams, Byron J.; Wall, Diana H.; Hopkins, David W.; Pointing, Stephen B.; McDonald, Ian R.; Cowan, Don A.; Banks, Jonathan C.; Stichbury, Glen A.; Jones, Irfon; Zawar-Reza, Peyman; Katurji, Marwan; Hogg, Ian D.; Sparrow, Ashley D.; Storey, Bryan C.; Green, T. G. Allan; Cary, S. Craig (Nature Research, 2019-02-15)
    Abiotic and biotic factors control ecosystem biodiversity, but their relative contributions remain unclear. The ultraoligotrophic ecosystem of the Antarctic Dry Valleys, a simple yet highly heterogeneous ecosystem, is a ...
  • Blind spots in global soil biodiversity and ecosystem function research 
    Guerra, Carlos A.; Heintz-Buschart, Anna; Sikorski, Johannes; Chatzinotas, Antonis; Guerrero-Ramirez, Nathaly; Cesarz, Simone; Beaumelle, Lea; Rillig, Matthias C.; Maestre, Fernando T.; Delgado-Baquerizo, Manuel; Buscot, Francois; Overmann, Jorg; Patoine, Guillaume; Phillips, Helen R.P.; Winter, Marten; Wubet, Tesfaye; Kusel, Kirsten; Bardgett, Richard D.; Cameron, Erin K.; Cowan, Don A.; Grebenc, Tine; Marin, Cesar; Orgiazzi, Alberto; Singh, Brajesh K.; Wall, Diana H.; Eisenhauer, Nico (Nature Publising Group, 2020-08-03)
    Soils harbor a substantial fraction of the world’s biodiversity, contributing to many crucial ecosystem functions. It is thus essential to identify general macroecological patterns related to the distribution and functioning ...
  • Characterization and homology modelling of a novel multi-modular and multi-functional Paenibacillus mucilaginosus glycoside hydrolase 
    Mosina, Ntsoaki Leticia; Schubert, Wolf-Dieter; Cowan, Don A. (Springer, 2019-11)
    Glycoside hydrolases, particularly cellulases, xylanases and mannanases, are essential for the depolymerisation of lignocellulosic substrates in various industrial bio-processes. In the present study, a novel glycoside ...
  • A clinically important, plasmid-borne antibiotic resistance gene (β-lactamase TEM-116) present in desert soils 
    Naidoo, Yashini; Valverde, Angel; Cason, Errol D.; Pierneef, Rian Ewald; Cowan, Don A. (Elsevier, 2020-06)
    The exhaustive use of antibiotics in humans, animal farming and other agricultural practices has resulted in the frequent appearance of antibiotic resistant bacteria in human-impacted habitats. However, antibiotic resistance ...
  • Comparative genomic analysis of Parageobacillus thermoglucosidasius strains with distinct hydrogenogenic capacities 
    Mohr, Teresa; Aliyu, Habibu; Kuchlin, Raphael; Zwick, Michaela; Cowan, Don A.; Neumann, Anke; De Maayer, Pieter (BioMed Central, 2018)
    BACKGROUND : The facultatively anaerobic thermophile Parageobacillus thermoglucosidasius produces hydrogen gas (H2) by coupling CO oxidation to proton reduction in the water-gas shift (WGS) reaction via a carbon ...
  • Differences in bacterial diversity, composition and function due to long-term agriculture in soils in the Eastern Free State of South Africa 
    Dube, Joel Prince; Valverde, Angel; Steyn, J.M. (Joachim Marthinus), 1963-; Cowan, Don A. (MDPI, 2019-04-17)
    Land-use change from natural to managed agricultural ecosystems significantly impacts soil bacterial diversity and function. The Eastern Free State (EFS) is one of the most productive agricultural regions in South Africa. ...
  • Diversity and seasonality of fungal communities in soil from the Succulent Karoo biodiversity hotspot, South Africa 
    Pieterse, Zelda; Aveling, T.A.S. (Terry); Jacobs, Adriana; Cowan, Don A. (Elsevier, 2020-01)
    The fungal rhizosphere communities associated with soil surrounding Aizoaceae plants in the Namaqua National Park in the Succulent Karoo biodiversity hotspot, South Africa, were analysed by culture-dependent and ...
  • Diversity structure of the microbial communities in the guts of four neotropical termite species 
    Vikram, Surendra; Arneodo, Joel D.; Calcagno, Javier; Ortiz, Maximiliano; Mon, Maria Laura; Etcheverry, Clara; Cowan, Don A.; Talia, Paola (PeerJ, 2021-04-07)
    The termite gut microbiome is dominated by lignocellulose degrading microorganisms. This study describes the intestinal microbiota of four Argentinian higher termite species with different feeding habits: Microcerotermes ...
  • Draft genome sequence of Thermoactinomyces sp. strain AS95 isolated from a Sebkha in Thamelaht, Algeria 
    Bezuidt, Keoagile Ignatius Oliver; Gomri, Mohamed A.; Pierneef, Rian Ewald; Van Goethem, Marc W.; Kharroub, Karima; Cowan, Don A.; Makhalanyane, Thulani Peter (Genomic Standards Consortium, 2016-09-09)
    The members of the genus Thermoactinomyces are known for their protein degradative capacities. Thermoactinomyces sp. strain AS95 is a Gram-positive filamentous bacterium, isolated from moderately saline water in the ...
  • The ecological assembly of bacterial communities in Antarctic wetlands varies across levels of phylogenetic resolution 
    Quiroga, Maria V.; Valverde, Angel; Mataloni, Gabriela; Casa, Valeria; Stegen, James C.; Cowan, Don A. (Wiley, 2022-08)
    As functional traits are conserved at different phylogenetic depths, the ability to detect community assembly processes can be conditional on the phylogenetic resolution; yet most previous work quantifying their influence ...
  • Effects of different operating parameters on hydrogen production by Parageobacillus thermoglucosidasius DSM 6285 
    Mohr, Teresa; Aliyu, Habibu; Biebinger, Lars; Godert, Roman; Hornberger, Alexander; Cowan, Don A.; De Maayer, Pieter (BioMed Central, 2019-12-23)
    Hydrogen gas represents a promising alternative energy source to dwindling fossil fuel reserves, as it carries the highest energy per unit mass and its combustion results in the release of water vapour as only byproduct. ...
  • Fungal Planet description sheets : 1112–1181 
    Crous, Pedro W.; Cowan, Don A.; Maggs-Kolling, G.; Yilmaz, Neriman; Larsson, E.; Angelini, C.; Brandrud, T.E.; Dearnaley, J.D.W.; Dima, B.; Dovana, F.; Fechner, N.; García, D.; Gene, J.; Halling, R.E.; Houbraken, J.; Leonard, P.; Luangsa-ard, J.J.; Noisripoom, W.; Rea-Ireland, A.E.; Sevcíkova, H.; Smyth, C.W.; Vizzini, A.; Adam, J.D.; Adams, G.C.; Alexandrova, A.V.; Alizadeh, A.; Duarte, E. Alvarez; Andjic, V.; Antonín, V.; Arenas, F.; Assabgui, R.; Ballarà, J.; Banwell, A.; BerrafTebbal, A.; Bhatt, V.K.; Bonito, G.; Botha, W.; Burgess, T.I.; Cabon, M.; Calvert, J.; Carvalhais, L.C.; Courtecuisse, R.; Cullington, P.; Davoodian, N.; Decock, C.A.; Dimitrov, R.; Piazza, S. Di; Drenth, A.; Dumez, S.; Eichmeier, A.; Etayo, J.; Fernández, I.; Fiard, J.-P.; Fournier, J.; Fuentes-Aponte, S.; Ghanbary, M.A.T.; Ghorbani, G.; Giraldo, A.; Glushakova, A.M.; Gouliamova, D.E.; Guarro, J.; Halleen, F.; Hampe, F.; Hernandez-Restrepo, M.; Iturrieta-González, I.; Jeppson, M.; Kachalkin, A.V.; Karimi, O.; Khalid, A.N.; Khonsanit, A.; Kim, J.I.; Kim, K.; Kiran, M.; Krisai-Greilhuber, I.; Kucera, V.; Kusan, I.; Langenhoven, S.D.; Lebel, T.; Lebeuf, R.; Liimatainen, K.; Linde, C.; Lindner, D.L.; Lombard, L.; Mahamedi, A.E.; Matocec, N.; Maxwell, A.; May, T.W.; McTaggart, A.R.; Meijer, M.; Mesic, A.; Mileto, A.J.; Miller, A.N.; Molia, A.; Mongkolsamrit, S.; Munoz Cortes, C.; Munoz-Mohedano, J.; Morte, A.; Morozova, Olga V.; Mostert, L.; Mostowfizadeh-Ghalamfarsa, R.; Nagy, L.G.; Navarro-Ródenas, A.; Örstadius, L.; Overton, B.E.; Papp, V.; Para, R.; Peintner, U.; Pham, Thi Ha Giang; Pordel, A.; Pošta, A.; Rodríguez, A.; Romberg, M.; Sandoval-Denis, M.; Seifert, K.A.; Semwal, K.C.; Sewall, B.J.; Shivas, R.G.; Slovák, M.; Smith, K.; Spetik, M.; Spies, C.F.J.; Syme, K.; Tasanathai, K.; Thorn, R.G.; Tkalčec, Z.; Tomashevskaya, M.A.; Torres-Garcia, D.; Ullah, Z.; Visagie, Cobus M.; Voitk, A.; Winton, L.M.; Groenewald, Johannes Zacharias (Naturalis Biodiversity Center, 2020-12)
    Novel species of fungi described in this study include those from various countries as follows: Australia, Austroboletus asper on soil, Cylindromonium alloxyli on leaves of Alloxylon pinnatum, Davidhawksworthia quintiniae ...
  • Genomics of alkaliphiles 
    Lebre, Pedro H.; Cowan, Don A. (Springer, 2019)
    Alkalinicity presents a challenge for life due to a “reversed” proton gradient that is unfavourable to many bioenergetic processes across the membranes of microorganisms. Despite this, many bacteria, archaea, and eukaryotes, ...
  • The Geobacillus pan-genome : implications for the evolution of the genus 
    Bezuidt, Keoagile Ignatius Oliver; Pierneef, Rian Ewald; Gomri, Amin M.; Adesioye, Fiyinfoluwa Adenike; Makhalanyane, Thulani Peter; Kharroub, Karima; Cowan, Don A. (Frontiers Research Foundation, 2016-05-24)
    The genus Geobacillus is comprised of a diverse group of spore-forming Gram-positive thermophilic bacterial species and is well known for both its ecological diversity and as a source of novel thermostable enzymes. ...
  • Gone with the wind : microbial communities associated with dust from emissive farmlands 
    Salawu-Rotimi, Adeola; Lebre, Pedro H.; Vos, Heleen Cornelia; Fister, Wolfgang; Kuhn, Nikolaus; Eckardt, Frank D.; Cowan, Don A. (Springer, 2021-11)
    Dust is a major vehicle for the dispersal of microorganisms across the globe. While much attention has been focused on microbial dispersal in dust plumes from major natural dust sources, very little is known about the ...
  • The gut microbiomes of two Pachysoma MacLeay desert dung beetle species (Coleoptera: Scarabaeidae: Scarabaeinae) feeding on different diets 
    Franzini, Philippa Z.N.; Ramond, Jean-Baptiste; Scholtz, Clarke H.; Sole, Catherine L.; Ronca, Sandra; Cowan, Don A. (Public Library of Science, 2016-08-17)
    Micro-organisms inhabiting animal guts benefit from a protected and nutrient-rich environment while assisting the host with digestion and nutrition. In this study we compare, for the first time, the bacterial and fungal ...
  • The healthy human blood microbiome : fact or fiction? 
    Castillo, Diego J.; Rifkin, Riaan F.; Cowan, Don A.; Potgieter, Marnie (Frontiers Media, 2019-05-08)
    The blood that flows perpetually through our veins and arteries performs numerous functions essential to our survival. Besides distributing oxygen, this vast circulatory system facilitates nutrient transport, deters ...
  • Hydrogen-oxidizing bacteria are abundant in desert soils and strongly stimulated by hydration 
    Jordaan, Karen; Lappan, Rachael; Dong, Xiyang; Aitkenhead, Ian J.; Bay, Sean K.; Chiri, Eleonora; Wieler, Nimrod; Meredith, Laura K.; Cowan, Don A.; Chown, Steven L.; Greening, Chris (American Society for Microbiology, 2020-11-17)
    How the diverse bacterial communities inhabiting desert soils maintain energy and carbon needs is much debated. Traditionally, most bacteria are thought to persist by using organic carbon synthesized by photoautotrophs ...
  • In silico characterization of the global Geobacillus and Parageobacillus secretome 
    Lebre, Pedro H.; Aliyu, Habibu; De Maayer, Pieter; Cowan, Don A. (BioMed Central, 2018-10-03)
    BACKGROUND : Geobacillus and Parageobacillus are two ecologically diverse thermophilic genera within the phylum Firmicutes. These taxa have long been of biotechnological interest due to their ability to secrete ...