Transformation of Spirulina platensis strain C1 (Arthrospira sp. PCC9438) with Tn5 transposase-transposon DNA-cation liposome complex

Yoshikazu Kawata, Shin'ichi Yano, Hiroyuki Kojima, Masaaki Toyomizu

研究成果: Article査読

32 被引用数 (Scopus)

抄録

Spirulina platensis is one of the most commercially important species of microalgae. Thus, it is an attractive candidate for genetic manipulation and the development of novel practical applications. However, this process is hampered by the absence of a stable gene transfer system, specifically the limited number of suitable vectors and transformation methods available for this organism. Artificial transposon systems developed by extracting the essential elements from natural transposons have been extensively studied, and recently a mutated transposase and transposon system was reported to improve transformation efficiency by electroporation. We applied a modified transformation strategy using a natural Tn5 transposon, transposase, and cation liposome complex by electroporation to improve the transformation efficiency for Spirulina platensis strain C1 (Arthrospira sp. PCC9438). Aggregation of cells became visible after 3 weeks during 2.0 μg/ml chloramphenicol selection, and growth continued for more than 12 months. Transfected chloramphenicol acetyltransferase (CAT) genes were detected in the genomic DNA by Southern hybridization. Transformed cells demonstrated CAT activity, but non-transformed cells did not.

本文言語English
ページ(範囲)355-363
ページ数9
ジャーナルMarine Biotechnology
6
4
DOI
出版ステータスPublished - 2004 8 1

ASJC Scopus subject areas

  • バイオテクノロジー
  • 水圏科学

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