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Optimization of electroporation conditions for toyocamycin producer Streptomyces diastatochromogenes 1628
Author(s) -
Ma Zheng,
Liu Jinxiu,
Shentu Xuping,
Bian Yalin,
Yu Xiaoping
Publication year - 2014
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/jobm.201200489
Subject(s) - electroporation , transformation (genetics) , strain (injury) , streptomyces , dna , plasmid , transformation efficiency , nucleoside , biology , chemistry , computational biology , microbiology and biotechnology , biochemistry , genetics , bacteria , gene , anatomy , agrobacterium
Because of its structural similarity to nucleoside, toyocamycin exhibits potential of wide application and various biological activities. Streptomyces diastatochromogenes 1628, capable of producing toyocamycin, has exhibited a potential biocontrol effect in inhibiting the development of phytopathogens in the agriculture field. An efficient transformation system is a prerequisite for genetic and molecular study of S. diastatochromogenes 1628. In this study, we optimized experimental factors involved in the electroporation transformation process. Key features of this procedure, including collection of cells at the mid‐log phase stage and the treatment of cells with lysozyme and penicillin G prior to the electroporation and recovery medium and time, produced the greatest increase in the efficiency and consistency of results. The transformation efficiency also depends on field strength, cell concentration, and plasmid DNA quantity. Under the optimal conditions, a maximal efficiency of (3 ± 0.4) × 10 4 µg −1 DNA was obtained. The development of transformation method for S. diastatochromogenes 1628 will foster genetic manipulation of this important strain.