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The Occurrence in Soil of Bacteria, Actinomycetes, and Molds Capable of Transforming Tyrosine to Melanin or Other Pigments
Author(s) -
Skinner C. E.
Publication year - 1940
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1940.036159950004000c0055x
Subject(s) - citation , library science , computer science , chemistry
S 231 are presented for this method of analysis and other methods, developed elsewhere, for a similar purpose; the advantages and disadvantages of each procedure are outlined. A detailed review of the application of this method of analysis to the following types of investigation is presented: studies of the course of decomposition of plant materials, of stable manures and composts, of green manures, of various peats, of organic matter in forest and heath soils, of organic matter in mineral soils, of organic matter in sea and lake bottoms, of organic matter in sewage and in garbage, and of organic matter in commercial preparations. One hundred and one papers are cited; these cover the application of this method of analysis in various laboratories throughout the world. It is concluded that the proximate system of analysis of plant materials and their decomposition products offers a valuable aid in determining the nature of the material, the chemical changes involved in the decomposition process, the nature of the humus produced, and the resistance of this humus to further decomposition by microorganisms. In spite of the limitations of this method in failing to define definitely some of the humus fractions and to account for certain highly specific plant constituents, this method proves valuable in throwing considerable light not only upon the origin of humus but upon its chemical nature as well. —Author abstract. THE OCCURRENCE IN SOIL OF BACTERIA, ACTINOMYCETES, AND MOLDS CAPABLE OF TRANSFORMING TYROSINE TO MELANIN OR OTHER PIGMENTS