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肠道干细胞 细菌大量存在于许多动物的肠道中,然而科学家对宿主如何在这些细菌面前保持其组织的完好性却一直缺乏相关的了解。瑞士科学家在最近一期的《基因与发育》杂志中指出,在受外来细菌激发后,黑腹果蝇(D...
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