## Background: The stable symbiotic association between paramecium bursaria and algae is of interest to study such mechanisms in biology as recognition, specificity, infection, and regulation. the combination of algae-free strains of p. bursaria, which have been recently established by treating the
Bacteria-free culture of Paramecium bursaria and concentration of the medium as a factor in growth
β Scribed by Loefer, John B.
- Book ID
- 102890658
- Publisher
- John Wiley and Sons
- Year
- 1936
- Tongue
- English
- Weight
- 1023 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0022-104X
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract Human neonatal skin fibroblasts plated sparsely in MCDB 105 traversed a complete cell cycle in the absense of serum or serumβderived proteins. Addition of pure PDGF did not significantly increase entrance into S phase as revealed by ^3^Hβthymidine labeling index or clonal growth on pall
## Abstract The hormones which support growth, in vitro, of normal, neonatal human foreskin fibroblasts were determined. Wheresas thrombin and hydrocortisone were major growth stimulants, plateletβderived growth factor was not. Human foreskin fibroblasts grew in a serumβfree, biochemically defined