Linked Life Data

1386323

Source:http://linkedlifedata.com/resource/pubmed/id/1386323

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1992-9-3
pubmed:abstractText
We have studied the effects of phosphate starvation on the levels and distributions of activities of acid phosphatase and beta-hexosaminidase in cultures of Tetrahymena thermophila. The cells were grown in synthetic nutrient medium and refed every day with fresh medium. After 4 days of growth in the complete medium, the cultures were divided into two portions. One received complete medium and the other phosphate-free, but otherwise complete, medium. Population densities and activities of acid phosphatase and beta-hexosaminidase in cells plus medium and in cell-free samples were determined in aliquots removed every day before medium replacement. In cultures having complete medium the enzyme levels remained fairly constant; in the phosphate-starved cultures both total and extracellular activities of acid phosphatase increased sixfold. beta-Hexosaminidase levels remained essentially unaltered in both cases. These results indicate that phosphate starvation can induce differential increase in acid phosphatase activity in cultures of Tetrahymena. Somewhat less than 50% of the total activities of both enzymes are found in the cell-free extracellular fluid at any time.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0014-4827
pubmed:author
pubmed:issnType
Print
pubmed:volume
201
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
522-5
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Differential increase in activity of acid phosphatase induced by phosphate starvation in Tetrahymena.
pubmed:affiliation
Department of Anatomy and Cytology, Odense University, Denmark.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't