THE ROLE OF PH IN THE GLUCOSE EFFECT ON PRODIGIOSIN PRODUCTION BY NONPROLIFERATING CELLS OF SERRATIA-MARCESCENS

Authors
SOLE M FRANCIA A RIUS N LOREN JG
Citation
M. Sole et al., THE ROLE OF PH IN THE GLUCOSE EFFECT ON PRODIGIOSIN PRODUCTION BY NONPROLIFERATING CELLS OF SERRATIA-MARCESCENS, Letters in applied microbiology, 25(2), 1997, pp. 81-84
Citations number
21
Categorie Soggetti
Microbiology,"Biothechnology & Applied Migrobiology
Journal title
Letters in applied microbiology → ACNP
ISSN journal
02668254
Volume
25
Issue
2
Year of publication
1997
Pages
81 - 84
Database
ISI
SICI code
0266-8254(1997)25:2<81:TROPIT>2.0.ZU;2-5
Abstract
The production of prodigiosin by non-proliferating cells of Serratia m arcescens is inhibited by addition of glucose or different carbon sour ces to the induction medium. The induction in acidic external pH, mimi cking the effects produced by the carbon sources, reduced prodigiosin synthesis, and the prodigiosin production seems to be related to the l ength of the low pH period. Buffering at pH 7.5 increased pigment prod uction in media with repressing carbon sources. This study reveals tha t the inhibitory effect of carbon sources on prodigiosin production ma y be due to a lowering of the pH of the medium.