scholarly journals Comparative Studies on Induction of Sporulation and Synthesis of Inducible Enzymes in Bacillus subtilis

1974 ◽  
Vol 120 (3) ◽  
pp. 1102-1108 ◽  
Author(s):  
J. G. Coote
Keyword(s):  
Bacillus Subtilis ◽  
Comparative Studies

scholarly journals COMPARATIVE STUDIES ON RESPIRATION

1919 ◽  
Vol 2 (1) ◽  
pp. 5-15 ◽  
Author(s):  
Matilda Moldenhauer Brooks
Keyword(s):  
Bacillus Subtilis ◽  
Comparative Studies ◽  
Gradual Decrease ◽  
Low Concentrations ◽  
High Concentrations

1. In relatively low concentrations of NaCl, KCl, and CaCl2 the rate of respiration of Bacillus subtilis remains fairly constant for a period of several hours, while in the higher concentrations, there is a gradual decrease in the rate. 2. NaCl and KCl increase the rate of respiration of Bacillus subtilis somewhat at concentrations of 0.15 M and 0.2 M respectively; in sufficiently high concentrations they decrease the rate. CaCl2 increases the rate of respiration of Bacillus subtilis at a concentration of 0.05 M and decreases the rate at somewhat higher concentrations. 3. The effects of salts upon respiration show a well marked antagonism between NaCl and CaCl2, and between KCl and CaCl2. The antagonism between NaCl and KCl is slight and the antagonism curve shows two maxima.

scholarly journals COMPARATIVE STUDIES ON RESPIRATION

1920 ◽  
Vol 2 (4) ◽  
pp. 331-336 ◽  
Author(s):  
Matilda Moldenhauer Brooks
Keyword(s):  
Bacillus Subtilis ◽  
Comparative Studies ◽  
Gradual Decrease

1. Concentrations of MgCl2 up to 0.01 M have little effect upon the rate or respiration of Bacillus subtilis; at 0.03 M there is an increase in the rate, while in the higher concentrations there is a gradual decrease. 2. There is a well marked antagonism between MgCl2 and NaCl, and a very slight antagonism between MgCl2 and CaCl2.

scholarly journals COMPARATIVE STUDIES ON RESPIRATION

1918 ◽  
Vol 1 (2) ◽  
pp. 193-201 ◽  
Author(s):  
Matilda Moldenhauer Brooks
Keyword(s):  
Bacillus Subtilis ◽  
Comparative Studies ◽  
Tap Water ◽  
Low Concentrations ◽  
High Concentrations

1. In all the concentrations of ether studied (from 0.037 to 7.3 per cent) there is an increase in the rate of respiration of Bacillus subtilis followed by a decrease. 2. In 7.3 per cent ether in tap water there is an extraordinary increase in the output of CO2 (amounting to 50 times the normal). This does not occur when 0.85 per cent NaCl is added, which indicates antagonism between ether and NaCl. 3. Ether is toxic in low concentrations (0.037 to 1.1 per cent) and high concentrations (3.65 to 7.3 per cent) but in intermediate concentrations (1.1 to 3.65 per cent) stimulates growth.

scholarly journals COMPARATIVE STUDIES ON RESPIRATION

1921 ◽  
Vol 3 (3) ◽  
pp. 337-342 ◽  
Author(s):  
Matilda Moldenhauer Brooks
Keyword(s):  
Bacillus Subtilis ◽  
Comparative Studies

1. Concentrations of La(NO3)3 up to 0.000025 M have little effect upon the rate of respiration of Bacillus subtilis; at 0.000006 M there is an increase in rate, while in higher concentrations there is a decrease in rate. 2. There is well marked antagonism between La(NO3)3 and NaCl, and very slight antagonism between La(NO3)3 and CaCl2. 3. It requires a very small amount of La(NO3)3 to antagonize NaCl, the proportions of the two salts at their maximum antagonism being 99.8 parts of NaCl and 0.2 parts of La(NO3)3.

Use of Antibody to aid Visualization of Protein at the Termini of Bacteriophage Ø29 DNA

1980 ◽  
Vol 38 ◽  
pp. 540-541
Author(s):  
Dwight Anderson ◽  
Charlene Peterson ◽  
Gursaran Notani ◽  
Bernard Reilly
Keyword(s):  
Electron Microscopy ◽  
Bacillus Subtilis ◽  
Dna Synthesis ◽  
Restriction Endonuclease ◽  
Protein Complex ◽  
Protein Product ◽  
Viral Dna ◽  
Small Proteins ◽  
Antibody Labeling ◽  
Subtilis Bacteriophage

The protein product of cistron 3 of Bacillus subtilis bacteriophage Ø29 is essential for viral DNA synthesis and is covalently bound to the 5’-termini of the Ø29 DNA. When the DNA-protein complex is cleaved with a restriction endonuclease, the protein is bound to the two terminal fragments. The 28,000 dalton protein can be visualized by electron microscopy as a small dot and often is seen only when two ends are in apposition as in multimers or in glutaraldehyde-fixed aggregates. We sought to improve the visibility of these small proteins by use of antibody labeling.

Further Comparative Studies on Ascites in Liver and Heart Disease

1950 ◽  
Vol 16 (1) ◽  
pp. 91-103 ◽  
Author(s):  
John A. Layne ◽  
F.R. Schemm ◽  
W.W. Hurst
Keyword(s):  
Heart Disease ◽  
Comparative Studies
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