Optimization of electroporation conditions for toyocamycin producer Streptomyces diastatochromogenes 1628. (17th June 2013)

• Record Type: Journal Article
• Authors: Ma, Zheng; Liu, Jinxiu; Shentu, Xuping; Bian, Yalin; Yu, Xiaoping
• Is Part Of: Journal of basic microbiology. Volume 54:issue 4(2014:Apr.)
• Page Start: 278
• Page End: 284
• Publication Date: 2013-06-17
• Subjects: Microbiology -- Periodicals; 579
• DOI: 10.1002/jobm.201200489
• Languages: English
• ISSNs: 0233-111X

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <sec id="jobm201200489-sec-0001" sec-type="section"> <p>Because of its structural similarity to nucleoside, toyocamycin exhibits potential of wide application and various biological activities. <italic>Streptomyces diastatochromogenes</italic> 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 <italic>S. diastatochromogenes</italic> 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) × 10⁴ µg⁻¹ DNA was obtained. The development of transformation method for <italic>S. diastatochromogenes</italic> 1628 will foster genetic manipulation of this important strain.</p> </sec> </abstract>