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Environmental Sciences

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Environmental Sciences

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Environmental Microbiology

Bacteriophages and Coliphages in Wastewater

Description

Bacteriophages are viruses that infect bacteria, and coliphages are the ones that infect coliform bacteria. These viruses can be found wherever coliform bacteria are present. The page focuses on how these phages relate to environmental samples, especially domestic wastewater.

Viruses are a specia...

Transcript

病毒是一类具有感染性的生物颗粒,可导致多种疾病,从感冒和流感,到肝炎和艾滋病。

病毒是由DNA或RNA基因组构成的生物颗粒,其外包裹着称为衣壳的蛋白质外壳,有时还带有额外的脂质包膜。病毒自身不具备代谢或繁殖能力,必须侵入活细胞并劫持其细胞机制,才能复制出更多自身拷贝。

细菌等原核细胞和人类等真核细胞均可被特定类别的病毒所感染。其中,噬菌体是能够感染细菌的病毒。例如,大肠杆菌噬菌体(coliphages)是一类能够感染大肠杆菌(E. coli)的噬菌体,大肠杆菌是一种常见的肠道细菌,某些菌株可引起食物中毒,其存在也表明供水系统受到粪便污染。

虽然噬菌体本身通常不被认为对人类具有致病性,但已有证据表明,它们可作为致病性肠道病毒的可靠替代指示物;这些肠道病...

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