The mixed cultivation of Streptomyces sp. for doxorubicin production = 유사 생합성 경로를 가진 Streptomyces sp.의 혼합배양을 이용한 Doxorubicin 생합성

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Title
The mixed cultivation of Streptomyces sp. for doxorubicin production = 유사 생합성 경로를 가진 Streptomyces sp.의 혼합배양을 이용한 Doxorubicin 생합성
Author(s)
Y H Choi; Young Soo Hong; J Y Lim; Jung Joon Lee
Bibliographic Citation
Korean Journal of (Applied) Microbiology & Biotechnology, vol. 25, no. 6, pp. 580-585
Publication Year
1997
Abstract
We selected two mutants namely strain D5 and Nu23 by mutage- nesis of anthracycline producing Streptomyces: the former is an ε-rhodomycinone overproducing mutant selected from Streptomyces sp. C5, a baumycin producer and the latter, a blocked mutant of early pathway for doxorubicin biosynthesis obtained from Streptomyces peucetius ATCC 27952, a doxorubicin producer. The mutant strain Nu23 does not produce anthracycline metabolites but retains the most of enzyme activities converting aklavinone to doxorubicin and the mutant strain D5 produced ε-rhodomycinone at a level of 150 μg/ml. These strains were grown separately in NDYE medium and each was mixed at day 3 by equal volume of culture broth but the quantity of doxorubicin produced was far below an estimation based on the level of ε-rhodomycinone normaly produced by the strain D5. On the other hand doxorubicin was reached at maximum level after 4 days in the mixed culture condition which was composed of culture broth of strain D5 grown for 6 day and that of strain Nu23 grown for 3 day. It was turned out that the growth of mutant strain D5 was inhibited by the accumulation of daunorubicin and doxorubicin in mixed culture broth, which cause the limitation of ε-rhodomycinone.
Keyword
DoxorubicinMixed cultureMutantStreptomyces
ISSN
0257-2389
Publisher
Korea Soc-Assoc-Inst
Type
Article
Appears in Collections:
Ochang Branch Institute > Chemical Biology Research Center > 1. Journal Articles
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