A Bacterial Growth-Factor Synthesized by a Soil Bacterium

Autor:	R. H. Thexton, A. G. Lochhead, Margaret O. Burton
Rok vydání:	1952
Předmět:	Soil bacteria Soil Multidisciplinary Bacteria biology Botany Yeast extract Vitamin B12 Bacterial growth biology.organism_classification complex mixtures
Zdroj:	Nature. 170:282-282
ISSN:	1476-4687 0028-0836
DOI:	10.1038/170282a0
Popis:	EARLIER studies in this laboratory1 have indicated the presence in soil of bacteria dependent upon growth-factors provided by soil extract but not by yeast extract nor by combinations of amino-acids and vitamins (not including B12). More recently it was shown2,3 that for many of the indigenous soil bacteria dependent upon essential growth-factors supplied by soil extract, the nutrilite effect of the latter could be replaced by vitamin B12. Other micro-organisms, however, remained dependent upon unidentified growth-promoting substances in soil.
Databáze:	OpenAIRE
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