TEMPERATURE ADAPTATION AND CRYOTOLERANCE IN LACTOBACILLUS-ACIDOPHILUS

Authors
LORCA GL DEVALDEZ GF
Citation
Gl. Lorca et Gf. Devaldez, TEMPERATURE ADAPTATION AND CRYOTOLERANCE IN LACTOBACILLUS-ACIDOPHILUS, Biotechnology letters, 20(9), 1998, pp. 847-849
Citations number
10
Categorie Soggetti
Biothechnology & Applied Migrobiology
Journal title
Biotechnology letters → ACNP
ISSN journal
01415492
Volume
20
Issue
9
Year of publication
1998
Pages
847 - 849
Database
ISI
SICI code
0141-5492(1998)20:9<847:TAACIL>2.0.ZU;2-E
Abstract
The response of Lactobacillus acidophilus CRL 639 to cold-shock (freez ing) depends on the initial growth temperature. Cells cultured at 25 d egrees C (long filaments with a mu value of 0.02 h(-1)) show a higher beta-galactosidase activity and develop cryotolerance, compared with c ells grown at 37 degrees C. One-dimensional proteins gel electrophores is shows the overexpression of six proteins (22.5-105.0 kDa) and the r epression of eight proteins (4.3-48.0 kDa) at 25 degrees C.