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Introduction to the Biochemistry of Terrestrial Soils
ISOLATION AND CHARACTERIZATION
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activity added amino acids ammonia ammonium amounts appears bacteria Biochem Biol biological carbohydrates carbon catechol cells Chem chemical chemoautotrophs chromatography clay complexes compounds concentration considerable containing culture cysteine decomposition degradation derivatives detected determined effect electron energy enzymes evidence examined example extracts exudates formation formed fraction fungi glucose groups growth higher humic acid hydrolysis increase indicated inorganic involved isolated known lignin material measured medium metabolism method microbial microorganisms mineral Nature nitrate nitrogen observed obtained occur organic acids oxidation oxygen phenolic phosphate phosphorus plant polysaccharides possible preparations presence probably Proc processes proteins ratio reactions recently reduced released reported residues rhizosphere ring roots samples showed shown similar soil organic matter Soil Sci solution species sterile structure studies substances substrate sugars suggested sulfate sulfur surface Table yield