Results 251 to 260 of about 3,263,643 (290)

Evolution of a Microbial Ecologist

Annual Review of Microbiology, 1979
EARLY DAYS 1 STANFORD 2 Termites 4 The Cohesive Force of Water 5 TEXAS 6 Cellulose Digestion by Cattle Protozoa and Bacteria 8 The ''Hungate Method" 9 How to Make Do 10 HOME STAMPING GROUNDS AGAIN 1 1 METHANOGENESIS 13 CALIFORNIA HERE WE COME 14 CHEMICAL WORK IN BIOLOGICAL SYSTEMS 15 INTERNATIONAL INTERLUDES 16 ANALYSIS OF ...
openaire   +2 more sources

Mechanisms in microbial evolution

Journal of Structural Biology, 1990
Molecular genetic studies with prokaryotic microorganisms reveal that many different molecular processes contribute to the formation of spontaneous mutations. Besides infidelities in DNA replication and the consequences of environmental mutagens, enzyme-mediated DNA rearrangements bring about important, evolutionarily relevant alterations in the ...
openaire   +3 more sources

Dating Microbial Evolution with MCMCtree

2022
This protocol explains how to use the program MCMCtree to estimate divergence times in microbial phylogenies. The main advantage of MCMCtree is the implementation of an approximation to the molecular data likelihood that dramatically speeds up computation during Bayesian MCMC sampling of divergence times and evolutionary rates. The approximation allows
openaire   +3 more sources

Microbial evolution in laboratory environments

Research in Microbiology, 2004
The classical model of evolutionary change in microbial populations is evaluated in terms of recent evidence obtained from genetic and molecular analysis of evolving laboratory populations in simple, defined homogeneous environments. Patterns of change are observed which cannot be predicted from the classical model.
openaire   +2 more sources

Oxygen toxicity and microbial evolution

Biosystems, 1991
It is postulated that the role of oxygen toxicity in the evolution of life strongly depends on the origin of molecular oxygen, due to the strong redox buffering capacity of Precambrian waters containing large amounts of ferrous and manganese cations. The critical selective pressure could be observed only after aerobic photosynthesis had been developed,
openaire   +2 more sources

The Evolution of Microbial Phosphonate Degradative Pathways

Journal of Molecular Evolution, 2005
Phosphonate utilization by microbes provides a potential source of phosphorus for their growth. Homologous genes for both C-P lyase and phosphonatase degradative pathways are distributed in distantly related bacterial species. The phn gene clusters for the C-P lyase pathway show great structural and compositional variation among organisms, but all ...
Jinling, Huang, Zhengchang, Su, Ying, Xu
openaire   +2 more sources

Darwin and microbial evolution

2010
In the 200th year of Charles Darwin’s birth anniversary and 150th year of the publication of the ‘Origin of Species’, biologists are trying to re-evaluate the concept of the evolution as propounded by Darwin in the light of the knowledge gathered through recent developments in genomics and proteomics.
T. K. Adhya, M. Patra
openaire   +1 more source

Microbial Symbiosis and Evolution

2012
This chapter talks about the symbiosis of microbes and mitochondria. Mutations, including deletions of DNA, happen constantly, so the unused genes have long since disappeared from the genomes of mitochondria that inhabit our cells. In fact, mutations are still raining down on the genomes of our mitochondria, and these continue throughout our lives ...
openaire   +1 more source

Microbial ecology and evolution

2014
Abstract Many ecosystems are wholly microbial and the activities of microorganisms provide the biochemical foundation for plant and animal life. ‘Microbial ecology and evolution’ describes how plants depend upon the complex redox reactions of microbes that fertilize the soil by fixing nitrogen, converting nitrites to nitrates, enhancing ...
openaire   +1 more source

Microbial Evolution in the Wild

Science, 2012
A genetic study of microbes in an acid mine drainage site provide evolutionary rate estimates for wild microbe populations.
openaire   +1 more source