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Soil Science Society of America Journal Abstract -

Amino Components of Soil Organic Matter Formed During Humification of 14C Glucose1


This article in SSSAJ

  1. Vol. 32 No. 5, p. 683-686
    Received: Mar 12, 1968
    Accepted: Apr 16, 1968

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  1. G. H. Wagner and
  2. V. K. Mutatkar2



After a 6-month period of incubation of 14C glucose in soil, the soil organic matter was acid hydrolyzed and amino compounds were isolated by ion exchange chromatography. The 13 major amino compounds contained 17 to 22% of the radioactive carbon that had become incorporated into the soil organic matter. Although all of the amino compounds were labeled with 14C the amount of label was not the same in all cases. Amino compounds with the highest specific activities were those which are known to predominate in bacterial and fungal cell walls. The results suggest that the cell walls of microorganisms utilizing glucose are more resistant to further decomposition than are the cytoplasmic proteins.

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