Induction by Cyanide, Dinitrophenol, and Trinitrophenol of Growth Inhibition and of Recovery from Far-Ultraviolet Killing in Escherichia coli B: Relationship to Photoprotection

1972 ◽  
Vol 49 (3) ◽  
pp. 631 ◽  
Author(s):  
Bala D. Lakchaura ◽  
John Jagger
Keyword(s):  
Escherichia Coli ◽  
Growth Inhibition ◽  
Far Ultraviolet ◽  
Escherichia Coli B

Growth inhibition of Escherichia coli B by nucleoside analogs

1983 ◽  
Vol 48 (7) ◽  
pp. 2088-2095 ◽  
Author(s):  
Markyta Bártová ◽  
Miloš Ryba ◽  
Zdena Jedličková ◽  
Ladislav Novotný ◽  
Hubert Hřebabecký ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Antibacterial Activity ◽  
Growth Inhibition ◽  
Nucleoside Analogs ◽  
Pyrimidine Nucleosides ◽  
High Antibacterial Activity ◽  
Inhibition Of Growth ◽  
Escherichia Coli B ◽  
Low Activity ◽  
Very High

The inhibition of growth of Escherichia coli B by series of 6-azaanalogs of pyrimidine nucleosides, their precursors, and analogs of cancerostatic agents 5-fluorouracil and arabinosylcytosine is reported. A very high antibacterial activity is observed with most of the 5-fluorouracil nucleosides where a cleavage (30%) to 5-fluorouracil is observed at the most active compounds (5-fluorouridine, 5-fluoro-2'-deoxyuridine). Arabinosylcytosine and its derivatives express very low activity.

Sites of Adsorption of the Bacteriophages T3 and T5 on the Wall of Escherichia Coli B.

1967 ◽  
Vol 25 ◽  
pp. 96-97
Author(s):  
Manfred E. Bayer
Keyword(s):  
Escherichia Coli ◽  
Cell Wall ◽  
Electron Microscope ◽  
Uranyl Acetate ◽  
E Coli ◽  
Receptor Sites ◽  
Rigid Cell Wall ◽  
Host Cell Surface ◽  
Bacterial Viruses ◽  
Escherichia Coli B

Bacterial viruses adsorb specifically to receptors on the host cell surface. Although the chemical composition of some of the cell wall receptors for bacteriophages of the T-series has been described and the number of receptor sites has been estimated to be 150 to 300 per E. coli cell, the localization of the sites on the bacterial wall has been unknown.When logarithmically growing cells of E. coli are transferred into a medium containing 20% sucrose, the cells plasmolize: the protoplast shrinks and becomes separated from the somewhat rigid cell wall. When these cells are fixed in 8% Formaldehyde, post-fixed in OsO4/uranyl acetate, embedded in Vestopal W, then cut in an ultramicrotome and observed with the electron microscope, the separation of protoplast and wall becomes clearly visible, (Fig. 1, 2). At a number of locations however, the protoplasmic membrane adheres to the wall even under the considerable pull of the shrinking protoplast. Thus numerous connecting bridges are maintained between protoplast and cell wall. Estimations of the total number of such wall/membrane associations yield a number of about 300 per cell.

scholarly journals Separation and Characterization of Deoxyribonucleases of Escherichia coli B

1966 ◽  
Vol 241 (13) ◽  
pp. 3090-3096
Author(s):  
Sally E. Jorgensen ◽  
James F. Koerner
Keyword(s):  
Escherichia Coli ◽  
Escherichia Coli B
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