Research Topics
| Jack Thomas TrevorsSummaryAffiliation: University of Guelph Country: Canada Publications
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Detail Information
Publications
The subsurface origin of microbial life on the EarthJ T Trevors
Department of Environmental Biology, University of Guelph, ON, Canada
Res Microbiol 153:487-91. 2002..In this manuscript, the surface and subsurface worlds are examined with a focus on the origin or assembly of bacterial life...- Fluorescent probes for bacterial cytoplasmic membrane researchJ T Trevors
Department of Environmental Biology, University of Guelph, Guelph, ON N1G 2W1, Canada
J Biochem Biophys Methods 57:87-103. 2003.... - Chance and necessity do not explain the origin of lifeJ T Trevors
Laboratory of Microbial Technology, Department of Environmental Biology, Room 3220, Bovey Building, University of Guelph, Guelph, Ontario, Canada, N1G 2W1
Cell Biol Int 28:729-39. 2004..Minimal metabolism would be needed for cells to be capable of growth and division. All known metabolism is cybernetic--that is, it is programmatically and algorithmically organized and controlled... - The possible origin of the first cell biosystem in the thermal subsurface environment of the earthJack T Trevors
Department of Environmental Biology, University of Guelph, Ontario, Canada
Riv Biol 97:79-90. 2004..This warm subsurface location, protected from surface radiation, could have been a favourable location for the assembly of the first bacterial cells on the Earth capable of growth and controlled division or the first biosystem... - Origin of life: hypothesized roles of high-energy electrical discharges, infrared radiation, thermosynthesis and pre-photosynthesisJ T Trevors
Laboratory of Microbiology, School of Environmental Sciences, University of Guelph, 50 Stone Road, E, Guelph, ON, N1G 2W1, Canada
Theory Biosci 131:225-9. 2012..In addition, the dual particle-wave nature of light is discussed from the perspective that life requires light acting both as a wave and particle... - Physical and biochemical nature of the bacterial cytoplasm: movement and localization of mRNA and the 30S subunits of ribosomesJ T Trevors
School of Environmental Sciences, Laboratory of Microbiology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
Prog Biophys Mol Biol 109:1-5. 2012.... - Can dead bacterial cells be defined and are genes expressed after cell death?J T Trevors
J Microbiol Methods 90:25-8. 2012..The definition of living and dead has implications for possible, completely, synthetic bacterial cells that may be capable of growth and division... - Transformative research: definitions, approaches and consequencesJ T Trevors
School of Environmental Sciences, University of Guelph, 50 Stone Road, East, Guelph, ON N1G 2W1, Canada
Theory Biosci 131:117-23. 2012..Examples are provided to illustrate how TR may unfold. Contributions it makes to basic and applied humanistic knowledge are highlighted... - A perspective on the mobilization, localization and delivery of molecules in the crowded bacterial cytoplasmJ T Trevors
Laboratory of Microbiology, School of Environmental Sciences, University of Guelph, 50 Stone Rd, East, Guelph, Ontario, N1G 2W1, Canada
Curr Issues Mol Biol 14:39-46. 2012.... - Bacterial gene expression at low temperaturesJ T Trevors
Laboratory of Microbiology, School of Environmental Sciences, Rm 3220 Bovey Bldg, University of Guelph, Guelph, ON, N1G 2W1, Canada
Extremophiles 16:167-76. 2012..The pros and cons of some of the molecular methodologies for gene expression analysis are also discussed... - Quantum microbiologyJ T Trevors
School of Environmental Sciences, University of Guelph, Ontario, Canada
Curr Issues Mol Biol 13:43-50. 2011.... 
Measuring the functional sequence complexity of proteinsKirk K Durston
Department of Biophysics, University of Guelph, Guelph, ON, N1G 2W1, Canada
Theor Biol Med Model 4:47. 2007..In this paper, we provide a method to measure functional sequence complexity...
Three subsets of sequence complexity and their relevance to biopolymeric informationDavid L Abel
The Gene Emergence Project, The Origin of Life Foundation, Inc, Greenbelt, MD 20770 1610, USA
Theor Biol Med Model 2:29. 2005..Organization invariably manifests FSC rather than successive random events (RSC) or low-informational self-ordering phenomena (OSC)...- Generalizations about bacteriology: thermodynamic, open systems, genetic instructions, and evolutionJ T Trevors
School of Environmental Sciences, University of Guelph, 50 Stone Road East, Guelph, Ontario, Canada
Antonie Van Leeuwenhoek 97:313-8. 2010..Some fundamental properties describing bacterial life are also presented... - One gram of soil: a microbial biochemical gene libraryJ T Trevors
School of Environmental Sciences, University of Guelph, Guelph, Ontario, NIG 2W1, Canada
Antonie Van Leeuwenhoek 97:99-106. 2010..In this article, soil as a biochemical gene library, gene expression, and the minimal number of genes for the first bacteria in the environment will be examined... - Evolution of cell division in bacteriaJ T Trevors
Laboratory of Microbial Technology, Department of Environmental Biology, University of Guelph, Room 3220, Bovey Building, N1G 2W1, Guelph, Ont, Canada
Theory Biosci 123:3-15. 2004..At this stage of evolution, they would not have been primitive cells but would have reached a threshold in evolution where cell division occurred in a regulated manner... - The composition and organization of cytoplasm in prebiotic cellsJack T Trevors
School of Environmental Sciences, University of Guelph, Ontario, N1G 2W1, Canada E Mail Tel 1 519 824 4120
Int J Mol Sci 12:1650-9. 2011..1-0.2 μm(3) (possibly less if a nanocell) prior to the first cell division... - The Big Bang, Superstring Theory and the origin of life on the EarthJ T Trevors
Laboratory of Microbial Technology, Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada N1G 2W1
Theory Biosci 124:403-12. 2006..It was the separation of the unified force into four singular forces that allowed the origin of life... - Perspective: time scales in scientific research with an emphasis on microbial cellular and molecular researchJ T Trevors
School of Environmental Sciences, Edmund Bovey Building, University of Guelph, 50 Stone Road, E Guelph, Ontario, Canada N1G 2W1
J Microbiol Methods 82:102-7. 2010.... - Perspective: researching the transition from non-living to the first microorganisms: methods and experiments are major challengesJ T Trevors
School of Environmental Sciences, University of Guelph, 350 Stone Rd, East, Guelph, Ontario NIG2W1, Canada
J Microbiol Methods 81:259-63. 2010..These perspectives will be discussed in this article as well as the possibility that a pre-biotic film preceded a microbial biofilm as a possible micro-location for the origin of microbial cells capable of growth and division... - Suitable microscopic entropy for the origin of microbial life: microbiological methods are challengesJ T Trevors
School of Environmental Sciences, University of Guelph, Guelph, Ontario, Canada N1G 2W1
J Microbiol Methods 83:341-4. 2010..Methodology limitations to study postulated past origin of microbial life events and to mimic these events in the laboratory, are still obstacles to understanding the origin of life... - How much cytoplasm can a bacterial genome control?J T Trevors
School of Environmental Sciences, University of Guelph, 50 Stone Road, E, Guelph, Ontario, Canada
J Microbiol Methods 84:147-50. 2011..The optimal genome size is one that is relatively constant, but also has some plasticity for evolutionary change (via gene transfer) and mutational events, and can control a range of cytoplasm during the cell cycle... - Origin of microbial life: Nano- and molecular events, thermodynamics/entropy, quantum mechanisms and genetic instructionsJ T Trevors
School of Environmental Sciences, University of Guelph, 50 Stone Rd, East, Guelph, Ontario, N1G 2W1, Canada
J Microbiol Methods 84:492-5. 2011.... - Thermodynamic perspectives on genetic instructions, the laws of biology and diseased statesJack T Trevors
School of Environmental Sciences, University of Guelph, N1G 2W1, Guelph, Ontario, Canada
C R Biol 334:1-5. 2011..However, when the attack is successful, the organism can be damaged until the cell, tissue, organ or entire organism is no longer functional and entropy increases... - Hypothesized origin of microbial life in a prebiotic gel and the transition to a living biofilm and microbial matsJack T Trevors
School of Environmental Sciences, University of Guelph, Ontario, Canada
C R Biol 334:269-72. 2011..The living biofilm then made the evolutionary transition to a microbial mat... - Viable but non-culturable (VBNC) bacteria: Gene expression in planktonic and biofilm cellsJ T Trevors
Laboratory of Microbiology, School of Environmental Sciences, Rm 3320 Bovey Building, University of Guelph, 50 Stone Rd, East, Guelph, Ontario, Canada N1G 2W1
J Microbiol Methods 86:266-73. 2011.... - Origin of microbial life hypothesis: a gel cytoplasm lacking a bilayer membrane, with infrared radiation producing exclusion zone (EZ) water, hydrogen as an energy source and thermosynthesis for bioenergeticsJ T Trevors
Laboratory of Microbiology, School of Environmental Sciences, University of Guelph, 50 Stone Rd, East, Guelph, Ontario, Canada N1G 2W1
Biochimie 94:258-62. 2012..These components will be discussed as to how they are interconnected, and their hypothesized roles in the origin of life... - DNA technologies: what's next applied to microbiology research?J T Trevors
School of Environmental Sciences, University of Guelph, Guelph, Ontario N1G 2W1, Canada
Antonie Van Leeuwenhoek 98:249-62. 2010..What's next with DNA is not always obvious, but history shows the international microbiology research community will readily adopt it... - Nucleic acids in the environmentJ T Trevors
Department of Environmental Biology, University of Guelph, Ontario, Canada
Curr Opin Biotechnol 7:331-6. 1996..These advances will have a significant impact on both future research and the way in which we view nucleic acids in the environment... - Molecular evolution and optimizationJ T Trevors
Department of Environmental Biology, University of Guelph, Ontario, Canada
Antonie Van Leeuwenhoek 72:251-9. 1997..In this review, molecular evolution and molecular optimization are examined with an emphasis on the order in which evolutionary events occurred... - Possible origin of a membrane in the subsurface of the EarthJ T Trevors
Laboratory of Microbial Technology, Department of Environmental Biology, University of Guelph, Room 3220 Bovey Building, ON, Guelph, Canada N1G 2W1
Cell Biol Int 27:451-7. 2003..Such an open system could also acquire novel functions, whereas a closed system would be unable to evolve... - Early assembly of cellular lifeJ T Trevors
Laboratory of Microbial Technology, Department of Environmental Biology, University of Guelph, Guelph, Ont, Canada N1G 2W1
Prog Biophys Mol Biol 81:201-17. 2003..This may have been widespread in the subsurface of the early Earth located at microscopic physical domains... - Simulated microgravity (SMG) and bacteriaCarly Huitema
Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada, N1G 2W1
Riv Biol 95:497-503. 2002..Houston, Texas, USA) to conduct this research. In this note we describe the use of the HARV to examine the effects of randomized microgravity (RMG) on bacterial growth and membrane polarization... - Genetic material in the early evolution of bacteriaJack Thomas Trevors
Laboratory of Microbial Technology, Department of Environmental Biology University of Guelph, Guelph, Ontario, Canada, NIG 2Wl
Microbiol Res 158:1-6. 2003..It is also possible that DNA-RNA duplices were intermediate genetic material in the early assembly of the first cells. These ideas will be discussed as well as other aspects of the assembly of the first cells on the Earth... - Evolution of bacterial genomesJ T Trevors
Department of Environmental Biology, University of Guelph, Ontario, Canada
Antonie Van Leeuwenhoek 71:265-70. 1997..This review examines evolution of bacterial genomes with an emphasis on RNA based life, the transition to functional DNA and small evolving genomes (possible plasmids) that led to larger, functional bacterial genomes... - DNA in soil: adsorption, genetic transformation, molecular evolution and genetic microchipJ T Trevors
Department of Environmental Biology, University of Guelph, Ontario, Canada
Antonie Van Leeuwenhoek 70:1-10. 1996..In addition, a postulated mechanism for stabilization and elongation/assembly of primitive genetic material and the role of soil particles, salt concentrations, temperature cycling and crystal formation is examined... - Genome size in bacteriaJ T Trevors
Department of Environmental Biology, University of Guelph, Ontario, Canada
Antonie Van Leeuwenhoek 69:293-303. 1996..These aspects and selected information on physically mapping bacterial genomes will be discussed... - Hypothesis: the origin of life in a hydrogel environmentJack T Trevors
Laboratory of Microbial Technology, Department of Environmental Biology, Ontario Agricultural College, University of Guelph, Guelph, Ontario, Canada N1G 2W1
Prog Biophys Mol Biol 89:1-8. 2005..Thus, the gel-like environment may have conferred distinct advantages for the assembly of the first cell(s)... - From self-assembly of life to present-day bacteria: a possible role for nanocellsJ T Trevors
Laboratory of Microbial Technology, Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada N1G 2W1
FEMS Microbiol Rev 25:573-82. 2001..This will also be examined from an evolutionary perspective with hydrogen as the postulated universal energy source [Morita, R. (2000) Microb. Ecol. 38, 307-320]... - Self-assembly of the first cells in a hydrophobic environment with hydrogen as the energy sourceJ T Trevors
Laboratory of Microbial Technology, Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada, N1G 2W1
Riv Biol 94:535-41. 2001..The possibility is explored that life first self-assembled in a hydrophobic environment in the subsurface protected from radiation with ubiquitous hydrogen as the likely universal energy source... - The effects of perennial ryegrass and alfalfa on microbial abundance and diversity in petroleum contaminated soilJennifer L Kirk
Department of Environmental Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
Environ Pollut 133:455-65. 2005..We concluded that plants altered the microbial population; these changes were plant-specific and could contribute to degradation of petroleum hydrocarbons in contaminated soil... - Microbial gene expression in soil: methods, applications and challengesSaleema Saleh-Lakha
Department of Environmental Biology, University of Guelph, Guelph, ON, Canada N1G 2W1
J Microbiol Methods 63:1-19. 2005..This review will also address information gaps in bacterial gene expression in soil and possible future research to develop an understanding of microbial activities in soil environments... - The microbial DNA cycle in soilLaura S England
Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada, N1G 2W1
Riv Biol 96:317-26. 2003..In this article we discuss the dual role of DNA as genetic material and as a nutrient source in the soil environment... - Mineralization of hexachlorocyclohexane in soil during solid-phase bioremediationTheresa M Phillips
Department of Environmental Biology, University of Guelph, Guelph, Ontario, N1G 2 W1 Canada
J Ind Microbiol Biotechnol 31:216-22. 2004..Thus, although HCH degradation occurs during the application of either oxic or cycled anoxic/oxic DARAMEND treatments, mineralization of gamma-HCH may be inhibited depending on the amendment and treatment protocol... - Methods of studying soil microbial diversityJennifer L Kirk
Department of Environmental Biology, University of Guelph, Ontario Agricultural College, Guelph, Ontario, Canada
J Microbiol Methods 58:169-88. 2004..Soil microorganisms, such as bacteria and fungi, play central roles in soil fertility and promoting plant health. This review examines and compares the various methods used to study microbial diversity in soil... - Mutational study of the role of N-terminal amino acid residues in tetrachlorohydroquinone reductive dehalogenase from Sphingomonas sp. UG30Marc Habash
School of Environmental Sciences, University of Guelph, Guelph, Ontario N1G 2W1, Canada
Res Microbiol 160:553-9. 2009.... - Biodegradation of hexachlorocyclohexane (HCH) by microorganismsTheresa M Phillips
Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada, N1G 2W1
Biodegradation 16:363-92. 2005..More in-depth assessments of amendment effects and evaluation of bioremediation protocols, on a large scale, using soil with high HCH concentrations, are needed... - Mycorrhizal and rhizobial colonization of genetically modified and conventional soybeansJeff R Powell
Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada
Appl Environ Microbiol 73:4365-7. 2007..Mycorrhizal colonization and nodule abundance and mass differed among soybean varieties; however, in no case was variation significantly associated with the genetic modification... - Genetic relatedness of Escherichia coli isolates in interstitial water from a Lake Huron (Canada) beachTatiana Kon
University of Guelph, Guelph, Ontario N1G 2W1, Canada
Appl Environ Microbiol 73:1961-7. 2007..coli may survive and possibly multiply outside of host organisms. The results are of interest as increasing concentrations of E. coli in recreational waters are often considered to be an indication of recent fecal pollution... - Repetitive element (REP)-polymerase chain reaction (PCR) analysis of Escherichia coli isolates from recreational waters of southeastern Lake HuronTanya Kon
University of Guelph, Guelph, ON N1G2W1, Canada
Can J Microbiol 55:269-76. 2009..coli to the lake. Our findings also suggest that environmentally adapted strains (EAS) of E. coli should be included as one of the potential sources in future microbial source tracking efforts... - Perspective: microfluidic applications in microbiologySaleema Saleh-Lakha
School of Environmental Sciences, University of Guelph, Guelph, ON, Canada N1G 2W1
J Microbiol Methods 82:108-11. 2010..We also summarize advantages and limitations of this technology, as well as highlight some recent microbiological applications... - Roundup Ready soybean gene concentrations in field soil aggregate size classesDavid J Levy-Booth
Department of Environmental Biology, University of Guelph, Guelph, ON, Canada
FEMS Microbiol Lett 291:175-9. 2009..The >2000 mum fraction contained between 66.62% and 99.18% of total gene copies, although it only accounted for about 30.00% of the sampled soil. Aggregate formation may facilitate persistence of recombinant DNA... - Real-time polymerase chain reaction monitoring of recombinant DNA entry into soil from decomposing roundup ready leaf biomassDavid J Levy-Booth
Departments of Environmental Biology, Plant Agriculture, Integrative Biology, and Land Resource Science, University of Guelph, Guelph, ON, N1G 2W1, Canada
J Agric Food Chem 56:6339-47. 2008..4 days. All genes from leaves were detected in soil after 30 days. This study provides a methodology for monitoring the entry of RR and NT soybean DNA into soil from decomposing plant residues... - Quantification and persistence of recombinant DNA of Roundup Ready corn and soybean in rotationSylvain Lerat
Departments of Environmental Biology, Plant Agriculture, and Integrative Biology, University of Guelph, Guelph, Ontario, Canada N1G 2W1
J Agric Food Chem 55:10226-31. 2007..This research will aid in the understanding of the persistence of recombinant DNA in agricultural cropping systems... - Quantitation of transgenic plant DNA in leachate water: real-time polymerase chain reaction analysisRobert H Gulden
Department of Plant Agriculture, Environmental Biology, and Integrative Biology, University of Guelph, Guelph, Ontario, Canada N1G 2W1
J Agric Food Chem 53:5858-65. 2005..Half-lives of plant DNA in leachate water ranged from 1.2 to 26.7 h, and persistence was greater at colder temperatures (5 and 15 degrees C)... - Influence of temperature on Cryptosporidium parvum oocyst infectivity in river water samples as detected by tissue culture assayNicholas J Pokorny
Department of Environmental Biology, University of Guelph, Ontario, Canada
J Parasitol 88:641-3. 2002..3 and 2.6 log units, respectively, over 12 wk, and no foci of infection were detected at 14 wk. The results show that as temperature increased from 4 to 23 C, the duration of oocyst infectivity decreased... - Green fluorescent protein-based biosensor for detecting SOS-inducing activity of genotoxic compoundsMagdalena Kostrzynska
Department of Environmental Biology, University of Guelph, N1G 2W1, Guelph, ON, Canada
J Microbiol Methods 48:43-51. 2002..These results indicate that recA'-gfp mutant 3-based biosensor is potentially useful for detection of genotoxins...