The importance of hydrogen ion concentration in hæmolysis by the lysins of anaerobic bacteria

1938 ◽  
Vol 46 (1) ◽  
pp. 85-93 ◽  
Author(s):  
L. E. Walbum
Keyword(s):  
Anaerobic Bacteria ◽  
Hydrogen Ion ◽  
Ion Concentration ◽  
Hydrogen Ion Concentration

scholarly journals THE MICRO-ORGANISMS IN PROFILES OF CERTAIN VIRGIN SOILS IN MANITOBA

1935 ◽  
Vol 13c (1) ◽  
pp. 32-46 ◽  
Author(s):  
M. I. Timonin
Keyword(s):  
Organic Matter ◽  
Anaerobic Bacteria ◽  
Hydrogen Ion ◽  
Ion Concentration ◽  
Soil Organisms ◽  
Peat Soils ◽  
Hydrogen Ion Concentration ◽  
Bacteria And Fungi ◽  
Micro Organisms ◽  
Number Of Bacteria

Twelve profiles of five different kinds of virgin soils of Manitoba were sampled, described and critically examined for soil organisms, hydrogen ion concentration and the moisture and organic matter present. Usually the A horizon showed the highest count of each group of micro-organisms and the C horizon the lowest although the greatest number of bacteria were present in the B horizon of boil 1 in the month of May. The proportion of anaerobic bacteria and fungi to total numbers increased with the depth of the horizon. Moisture content of the soil was not found to exert any consistent effect upon the numbers of micro-organisms present. Fungi were most abundant in the wooded and peat soils, bacteria more so in soils of the meadow-prairie phase. In the wooded soils the microbiological horizons appeared to coincide with the morphological horizons.

Sign in / Sign up

Export Citation Format

Share Document