Secondly, we selected yeast Pichia pastoris to be the gene-expressing host and the secreting plasmid pPIC9 was as vector to construct recombined plasmid pPIC-Atmp.

• 研究中，我们选用巴斯德毕赤酵母作为基因表达系统，分泌型质粒pPIC9作为载体，构建了基因工程菌。