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Target Concepts:
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Query: UMLS:C0038187 (
starvation
)
24,951
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
A strain of Pseudomonas putida that utilized the biogenic organophosphonate
2-aminoethylphosphonic acid
as sole carbon and energy, nitrogen and phosphorus source contained
2-aminoethylphosphonic acid
: pyruvate aminotransferase and phosphonoacetaldehyde hydrolase (phosphonatase) activities which were inducible by the presence of
2-aminoethylphosphonic acid
in the culture medium, regardless of the phosphate status of the cells. Neither of these activities were induced in their phosphate-free or phosphate-replete medium in the absence of
2-aminoethylphosphonic acid
. Alkaline phosphatase activity was induced in phosphate limited medium, however, indicating a phosphate-
starvation
inducible response. In Enterobacter aerogenes IFO 12010, 2-aminoethylphosphonate: pyruvate aminotransferase and phosphonatase activities were induced only when cells were both phosphate limited and supplied with
2-aminoethylphosphonic acid
as sole phosphorus source for growth. Neither enzyme activity was induced in phosphate-replete medium, or in medium where both
2-aminoethylphosphonic acid
and inorganic phosphate were supplied as sources of phosphorus. The results point to the presence of a substrate inducible
2-aminoethylphosphonic acid
biodegradation pathway in the isolated strain of Pseudomonas putida. Uniquely, therefore, the pathway is not under pho regulon control in this strain.
...
PMID:Phosphate starvation-independent 2-aminoethylphosphonic acid biodegradation in a newly isolated strain of Pseudomonas putida, NG2. 984 Nov 25
