Low temperature is one of the most critical environmental factors influencing the microbial diversity and functioning of deep-sea ecosystem. In the present study, the global gene expression patterns of the deep-sea bacterium Shewanella piezotolerans WP3 at different temperatures (4 °C and 25 °C) were evaluated through DNA microarray analysis. We identified 185 and 183 genes in WP3 whose expression is increased and decreased, respectively, at 4 °C compared to growth at 25 °C. The functions of enriched genes were associated with transcription and translation, out membrane, amino acid transport and flagellar system. These data provided a transcriptome resource for the investigation of cold adaptation mechanism of deep-sea bacteria.

低温是影响深海生态系统微生物多样性和功能的最关键环境因素之一。在本研究中，通过DNA微阵列分析评估了深海细菌希瓦氏菌WP3在不同温度（4°C和25°C）下的全局基因表达模式。我们在WP3中鉴定出185和183个基因，它们的表达在4°C时分别增加和减少，而在25°C时则增加。富集基因的功能与转录和翻译，膜外，氨基酸转运和鞭毛系统有关。这些数据为研究深海细菌的冷适应机制提供了转录组资源。