Browsing IBERS Research papers by Author "Edwards, Joan E."

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  • Adaptation to flavomycin in the ruminal bacterium, Prevotella bryantii 
    Edwards, Joan E.; McEwan, Neil R.; Wallace, R. John (2008-06-01)
    Aims: The recent EU ban of growth-promoting antibiotics in animal production was based on fears concerning antibiotic resistance being transmitted to human pathogens. This paper explores the adaptation mechanism of a common ...
  • Bacterial colonisation of fresh and dried perennial ryegrass in the rumen 
    Kingston-Smith, Alison H.; Sanderson, Ruth; Edwards, Joan E.; Jones, S. (2008)
    The primary objective of the conference is to promote understanding of the complex microbial ecosystems present in the digestive tract of mammals and other higher animals and their interaction with their hosts. It is a ...
  • Bacterial colonisation of the tanniferous forage lotus corniculatus in the bovine rumen 
    Edwards, Joan E.; Morris, Phillip; Robbins, Mark P.; Kim, Eun J.; Kingston-Smith, Alison H. (2009-04-01)
    The tanniferous forage Lotus corniculatus generally has a beneficial effect on ruminal fermentation, protecting dietary protein from excessive degradation. In L. corniculatus, condensed tannins (CTs) are normally concentrated ...
  • Characterization of the dynamics of initial bacterial colonization of nonconserved forage in the bovine rumen 
    Edwards, Joan E.; Huws, Sharon A.; Kim, Eun J.; Kingston-Smith, Alison H. (2007-12-01)
    Microbial colonization is central to ruminal degradation of dietary material yet little is known about the dynamics of this process. The aim of this study was to characterize the initial stages of bacterial colonization ...
  • CowPI: : A rumen microbiome focussed version of the PICRUSt functional inference software 
    Wilkinson, Toby; Huws, Sharon; Edwards, Joan E.; Kingston-Smith, Alison; Siu-Ting, Karen; Hughes, Martin; Rubino, Francesco; Friedersdorff, Maximilian; Creevey, Christopher (2018-05-25)
    Metataxonomic 16S rDNA based studies are a commonplace and useful tool in the research of the microbiome, but they do not provide the full investigative power of metagenomics and metatranscriptomics for revealing the ...
  • Diversity and activity of enriched ruminal cultures of anaerobic fungi and methanogens grown together on lignocellulose in consecutive batch culture 
    Cheng, Yan Fen; Edwards, Joan E.; Allison, Gordon G.; Zhu, Wei-Yun; Theodorou, Michael K. (2009-10)
    Consecutive batch cultures (CBC), involving nine serial transfers at 3, 5 and 7 d intervals (21, 45 and 63 d, respectively) were established to enrich for plant fibre degrading co-cultures of anaerobic fungi and methanogens ...
  • Effect of antibiotics on the bacterial population of the rabbit caecum 
    Abecia, Leticia; Fondevila, Manuel; Balcells, Joaquim; Edwards, Joan E.; Newbold, C. James; McEwan, Neil R. (2007-07)
    The effect feeding antibiotics has on the bacterial population of the rabbit caecum was investigated. No changes in total volatile fatty acid production or total bacterial counts were observed compared with nonantibiotic ...
  • From plants to animals: the role of plant cell death in ruminant herbivores 
    Kingston-Smith, A. H.; Davies, T. E.; Edwards, Joan E.; Theodorou, M. K. (2008)
    Plant cell death occurring as a result of adverse environmental conditions is known to limit crop production. It is less well recognized that plant cell death processes can also contribute to the poor environmental footprint ...
  • Molecular profiling of bacterial species in the rabbit caecum 
    Abecia, Leticia; Fondevila, Manuel; Balcells, Joaquim; Edwards, Joan E.; Newbold, C. James; McEwan, Neil R. (2005-03)
    The diversity of bacteria present in the caecum of the rabbit was investigated. Partial bacterial 16S rRNA genes from a digested sample collected from the caecum of an adult rabbit were amplified by PCR. Sequence analysis ...
  • A new anaerobic fungus (Oontomyces anksri gen. nov., sp. nov.) from the digestive tract of the Indian camel (Camelus dromedarius) 
    Dagar, Sumit S.; Kumar, Sanjay; Griffith, Gareth W.; Edwards, Joan E.; Callaghan, Tony M.; Singh, Rameshwar; Nagpal, Ashok K.; Puniya, Anil K. (2015)
    Two cultures of anaerobic fungi were isolated from the forestomach of an Indian camel (Camelus dromedarius). Phylogenetic analysis using both the internal transcribed spacer (ITS) and large-subunit (LSU) regions of the ...
  • The plant-microbe interactome in ruminants: identification of control for mitigation of negative ecosystem outputs 
    Newbold, C. James; Scollan, Nigel D.; Edwards, Joan E.; Kingston-Smith, Alison H.; Kim, Eun J. (2009)
    This conference provides an opportunity to discuss recent developments in the understanding of how microorganisms can interact positively with plants in agricultural and natural ecosystems, how these interactions impact ...
  • Quantitative methods for the analysis of zoosporic fungi 
    Marano, Agostina V.; Gleason, Frank H.; Bärlocher, Felix; Pires-Zottarelli, Carmen L. A.; Lilje, Osu; Schmidt, Steve K.; Rasconi, Serena; Kagami, Maiko; Barrera, Marcelo D.; Sime-Ngando, Télesphore; Boussiba, Sammy; Souza, José I. de; Edwards, Joan E. (2012-02-16)
    Quantitative estimations of zoosporic fungi in the environment have historically received little attention, primarily due to methodological challenges and their complex life cycles. Conventional methods for quantitative ...
  • Rumen microbial diversity in Svalbard reindeer, with particular emphasis on methanogenic archaea 
    Praesteng, K. E.; Glad, T. E.; Senosiain, R. S.; Sundset, M. A.; Fraile, M. N.; Cheng, Yan Fen; Edwards, Joan E.; Mathiesen, S. D.; Wright, A-D G.; Northwood, K. S. (2009-07-29)
    Ruminal methanogens, bacteria and ciliate protozoa of Svalbard reindeer grazing natural pastures in October (late fall) and April (late winter) were investigated using molecular-based approaches. The appetite of the Svalbard ...
  • The rumen microbiome: an underexplored resource for novel antimicrobial discovery 
    Oyama, Linda B.; Girdwood, Susan E.; Cookson, Alan R.; Fernandez-fuentes, Narcis; Privé, Florence; Vallin, Hannah E.; Wilkinson, Toby J.; Golyshin, Peter N.; Golyshina, Olga V.; Mikut, Ralf; Hilpert, Kai; Richards, Jennifer; Wootton, Mandy; Edwards, Joan E.; Maresca, Marc; Perrier, Josette; Lundy, Fionnuala T.; Luo, Yu; Zhou, Mei; Hess, Matthias; Mantovani, Hilario C.; Creevey, Christopher J.; Huws, Sharon A. (2017-12-01)
    Antimicrobial peptides (AMPs) are promising drug candidates to target multi-drug resistant bacteria. The rumen microbiome presents an underexplored resource for the discovery of novel microbial enzymes and metabolites, ...
  • Specificity and sensitivity of eubacterial primers utilized for molecular profiling of bacteria within complex microbial ecosystems 
    Huws, Sharon A.; Edwards, Joan E.; Kim, Eun J.; Scollan, Nigel D. (2007-09-01)
    Efficient profiling of eubacterial diversity within complex communities requires that primers are specific for eubacterial 16S rRNA. Specificity of published primers against eubacterial and archaeal 16S rRNA as well as ...

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