PCR and sequence analysis were used to detect the toxin gene.

基因序列测定和分析结果进一步表明该毒素基因高度保守。

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Objective:To study the drug resistance and the toxin gene of the first Vibrio cholerae O139(VCO139) in Longquan.

目的：研究龙泉市首例O139群霍乱弧菌耐药性及毒力基因携带情况。

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In this study, the Aer toxin gene was cloned and expressed in prokaryotic system and the antigenicity of its recombinant protein was analyzed.

该领域国外研究热点在嗜水气单胞菌毒素的基因组结构、相关毒力因子基因克隆和序列比较以及毒素蛋白的表达和致病机理等方面。

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An excellent example is corn crafted by introducing into commercial corn varieties a gene (or genes) encoding a natural toxin(s) from the bacterium Bacillus thuringiensis.

FORBES: Bittman of the 'New York Times': Always Out To Lunch