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Sulfate uptake as a measure of bacterial production 1
Author(s) -
Jordan Marilyn J.,
Peterson Bruce J.
Publication year - 1978
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1978.23.1.0146
Subject(s) - production rate , measure (data warehouse) , isotopes of carbon , chemistry , biology , environmental chemistry , environmental science , food science , total organic carbon , industrial engineering , database , computer science , engineering
The [ 35 S]SO 4 uptake method forestimating bacterial production was tested on two isolates from a freshwater lake. The rate of S (as SO 4 ) uptake multiplied by the cell C:S ratio was an accurate estimate of bacterial carbon production over a wide range of growth rates. The C:S weight ratios ranged from 98 to 110 for five isolates (< x > = 103) and was 218 for a sixth, assuming an isotopic discrimination of 4% for 35 S vs. 32 S uptake. Further investigation is required before SO 4 uptake can be used as a measure of bacterial production in field studies.