Results 91 to 100 of about 3,602,698 (355)

Inclusion of seasonal variation in river system microbial communities and phototroph activity increases environmental relevance of laboratory chemical persistence tests [PDF]

, 2020
Regulatory tests assess crop protection product environmental fate and toxicity before approval for commercial use. Although globally applied laboratory tests can assess biodegradation, they lack environmental complexity.
Bending, G. D., Hand, Laurence H., Hilton, Sally L., Pearson, Jonathan M., Southwell, Rebecca V.   +4 more
core   +1 more source

Transformation of Bacterial Types.

Experimental Biology and Medicine, 1936
In previous papers the isolation and description of numerous variant forms of Micrococcus tetragenus was reported.1 It was at first believed that these interchangeable variants composed a complex system of bacterial variation different from the orderly one associated with other bacteria.
openaire   +2 more sources

Transformation of isolated mammalian mitochondria by bacterial conjugation [PDF]

Nucleic Acids Research, 2005
We have developed a method for transferring exogenous DNA molecules into isolated mammalian mitochondria using bacterial conjugation. In general, we accomplish this by (i) inserting an origin of DNA transfer (oriT) sequence into a DNA construct, (ii) transforming the construct into an appropriate Escherichia coli strain and then (iii) introducing the ...
Young Geol Yoon, Michael D. Koob
openaire   +3 more sources

Bacterial Substrate Transformation Tracked by Stable-Isotope-Guided NMR Metabolomics: Application in a Natural Aquatic Microbial Community

Metabolites, 2017
The transformation of organic substrates by heterotrophic bacteria in aquatic environments constitutes one of the key processes in global material cycles.
Mario Uchimiya, Yuuri Tsuboi, Kengo Ito, Yasuhiro Date, Jun Kikuchi   +4 more
doaj   +1 more source

The induction of natural competence adapts staphylococcal metabolism to infection

Nature Communications, 2022
Orthologs of natural competence genes are conserved in non-competent bacterial species, suggesting they have a role other than in transformation. Here, the authors show that competence induction in Staphylococcus aureus occurs in response to reactive ...
Mar Cordero, Julia García-Fernández, Ivan C. Acosta, Ana Yepes, Jose Avendano-Ortiz, Clivia Lisowski, Babett Oesterreicht, Knut Ohlsen, Eduardo Lopez-Collazo, Konrad U. Förstner, Ana Eulalio, Daniel Lopez   +11 more
doaj   +1 more source

Crosstalk between gut microbiota and tumor: tumors could cause gut dysbiosis and metabolic imbalance

Molecular Oncology, EarlyView.
In this research, we analyzed the relationship between gut microbiota and tumor. We discovered that both subcutaneous and metastatic tumors would alter the composition and metabolic function of gut microbiota. Meanwhile, fecal microbiota transplantation also indicated the anti‐tumor role of the gut microbiota, revealing the crosstalk between tumor and ...
Siyuan Zhang, Haimei Wen, Ying Chen, Jingya Ning, Di Hu, Yujiao Dong, Chenyu Yao, Bo Yuan, Shuanying Yang   +8 more
wiley   +1 more source

Copepods controlling bacterial communities on fecal pellets [PDF]

, 2009
The traditional view of the marine food web depicts bacteria and copepods (mainly planktonic species) as separate units, indirectly connected via nutrient cycling and trophic cascade processes.
Cnudde, Clio, De Troch, Marleen, Vanreusel, Ann, Willems, Anne   +3 more
core   +1 more source

The maintenance of sex in bacteria is ensured by its potential to reload genes

, 2006
Why sex is maintained in nature is a fundamental question in biology. Natural genetic transformation (NGT) is a sexual process by which bacteria actively take up exogenous DNA and use it to replace homologous chromosomal sequences.
Derenyi, Imre, Szollosi, Gergely J., Vellai, Tibor   +2 more
core   +2 more sources

Interactions of Bacillus Mojavensis and Fusarium Verticillioides With a Benzoxazolinone (Boa) and Its Transformation Product, Apo [PDF]

, 2007
En:Journal of Chemical Ecology (2007, vol. 33, n. 10, p. 1885-1897)The benzoxazolinones, specifically benzoxazolin-2(3H)-one (BOA), are important transformation products of the benzoxazinones that can serve as allelochemicals providing resistance to ...
A. Baumeler, A. E. Glenn, A. E. Glenn, A. E. Glenn, A. Friebe, A. Friebe, A. Givovich, A. I. Virtanen, A. S. Atwal, Anthony E. Glenn, C. W. Bacon, C. W. Bacon, C. W. Bacon, C. W. Bacon, C. W. Bacon, Charles W. Bacon, David Marin, Dorothy M. Hinton, E. Wang, F. A. Macias, Francisco A. Macías, G. Nair, H. Hartenstein, H. M. Niemeyer, I. S. Fomsgaard, I. S. Fomsgaard, J. A. Klun, J. G. Waes, J. I. Fritz, K. A. Voss, K. Anzai, K. Pratt, L. J. Corcuera, L. M. Hansen, M. Frey, M. G. Koziel, M. Knop, M. Zikmundova, N. Gerber, N. J. Whitney, O. Wahlroos, P. A. Hedin, Q. Yue, R. M. Couture, R. T. Riley, R. T. Riley, R. W. Gagliardo, S. Martyniuk, S. S. Krogh, S. V. Copaja, T. Kommedahl, V. Cambier, V. H. Argandona, V. Vilich, W. F. O. Marasas, W. F. O. Marasas   +55 more
core   +2 more sources

Spontaneously Occurring Bacterial Transformations in Mice [PDF]

Journal of Bacteriology, 1969
In 1963, it was reported that deoxyribonucleic acid (DNA)-mediated transformations could take place spontaneously between genetically distinguishable pneumococci growing in a living host, the mouse. It was found in the present study that such transformations could be increased in frequency if infected animals were treated with a drug which kills only ...
openaire   +3 more sources