1887

Abstract

SUMMARY: Several bacteria able to decompose native lignin prepared according to Brauns (1939) were isolated from soil; they were aerobic, Gram-negative, motile or non-motile, non-endospore forming rods belonging to the genera and . The decomposition was studied in a neutral medium containing the lignin as a suspension of fine particles and solidified with silica gel. 20–30% of the lignin added to the medium was decomposed by the bacteria. Independently of the biological decomposition, a non-biological transformation of lignin occurred during the later stage of the incubation when the medium dried out. The products of the non-biological transformation were dark brown, soluble in water but insoluble in ethanol. They reacted readily with nitrogen compounds in peptone, forming complexes containing about 2·5% nitrogen, half of which was α-amino nitrogen. The relation of these complexes to soil humic acid is discussed.

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/content/journal/micro/10.1099/00221287-27-1-21
1962-01-01
2019-12-08
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http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-27-1-21
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