Results 91 to 100 of about 2,596,240 (298)

Species dynamics in natural bacterial communities over multiple rounds of propagation

Evolutionary Applications, 2022
Our experimental work illustrates how microbial ecosystems can be shaped by selective pressures over long‐term ecological time scales. Natural microbial ecosystems generally consist of various co‐existing species, where community composition describes ...
Anneloes E. Groenenboom, Joost van denHeuvel, Bas J. Zwaan, Eddy J. Smid, Sijmen E. Schoustra   +4 more
doaj   +1 more source

Implications of Color Gauge Symmetry For Nucleon Spin Structure [PDF]

, 1998
We study the chromodynamical gauge symmetry in relation to the internal spin structure of the nucleon. We show that 1) even in the helicity eigenstates the gauge-dependent spin and orbital angular momentum operators do not have gauge-independent matrix ...
A. Bassetto, A. Manohar, G. Altarelli, H. Y. Cheng, I. Balitsky, P. G. Ratcliffe, P. Hoodbhoy, P. Hägler, Pervez Hoodbhoy, R. L. Jaffe, R. P. Feynman, S. V. Bashinskii, V. Barone, Wei Lu, X. Ji, X. Ji, X. Ji, Xiangdong Ji   +17 more
core   +3 more sources

EXPERIMENTAL MOLECULAR EVOLUTION OF BACTERIOPHAGE T7 [PDF]

Evolution, 1993
We present an analysis of molecular evolution in a laboratory-generated phylogeny of the bacteriophage T7, a virus of 40 kilo-base pairs of double-stranded DNA. The known biology of T7 is used in concert with observed changes in restriction sites and in DNA sequences to produce a model of restriction-site convergence and divergence in the experimental ...
J J, Bull, C W, Cunningham, I J, Molineux, M R, Badgett, D M, Hillis   +4 more
openaire   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Stress adaptation under in vitro evolution influences survival and metabolic phenotypes of clinical and environmental strains of Vibrio cholerae El-Tor

Microbiology Spectrum
Bacterial adaptation to stress can lead to phenotypic variants with diverse levels of niche competitiveness, pathogenicity, and antimicrobial resistance.
Nana Eghele Adade, Stephen Dela Ahator, Inmaculada García-Romero, Macarena Algarañás, Vincent Appiah, Miguel A. Valvano, Samuel Duodu   +6 more
doaj   +1 more source

Potential for Acanthoscelides obtectus to Adapt to New Hosts Seen in Laboratory Selection Experiments

Insects, 2019
Effective pest management strategies for a targeted pest species must rely on accurate, reliable and reproducible estimates of population dynamics. Importance of such approaches is even more conspicuous when assessing pest’s potential to utilize ...
Uroš Savković, Mirko Đorđević, Biljana Stojković   +2 more
doaj   +1 more source

Predicting evolution from genomics: experimental evolution of bacteriophage T7 [PDF]

Heredity, 2008
A wealth of molecular biology has been exploited in designing and interpreting experimental evolution studies with bacteriophage T7. The modest size of its genome (40 kb dsDNA) and the ease of making genetic constructs, combined with the many genetic resources for its host (Escherichia coli), have enabled comprehensive and detailed studies of ...
J J, Bull, I J, Molineux
openaire   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Entangled and disentangled evolution for a single atom in a driven cavity

, 2004
For an atom in an externally driven cavity, we show that special initial states lead to near-disentangled atom-field evolution, and superpositions of these can lead to near maximally-entangled states.
H. Carmichael, H. J. Carmichael, J. Gea-Banacloche, L. A. Orozco, P. R. Rice, T. C. Burt   +5 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source