Chapter 4: 噬菌体 Flashcards

1
Q

噬菌体(bacteriophage)

A

是感染细菌、真菌、放线菌或螺旋体等微生物的病毒

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2
Q

毒性噬菌体(virulent phage)

A

能在宿主菌细胞内复制增殖,产生许多子代噬菌体,并最终裂解细菌的一类噬菌体。

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3
Q

温和噬菌体(temperate phage)

A

噬菌体基因组整合于宿主菌染色体中,不产生子代噬菌体,也不引起细菌裂解,但噬菌体DNA随细菌基因组的复制而复制,并随细菌的分裂而分配至子代细菌的基因组中的一类噬菌体。

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4
Q

吸附

A

噬菌体表面蛋白与其宿主菌表面受体发生特异性结合的过程,其特异性取决于两者分子结构的互补性

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5
Q

噬斑(plaque)

A

由一个噬菌体复制增殖并裂解宿主菌后形成的透亮的溶菌空斑。

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6
Q

噬斑形成单位(plaque forming units,PFU)

A

由一个噬菌体感染宿主菌复制增殖后所形成的一个噬斑称为一个噬斑形成单位。

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7
Q

前噬菌体(prophage)

A

整合在细菌染色体上的噬菌体基因称为前噬菌体

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8
Q

溶源性细菌(lysogenic bacterium)

A

带有前噬菌体的细菌

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9
Q

溶源性(lusogeny)

A

温和噬菌体具有的这种产生成熟子代噬菌体颗粒和裂解宿主菌的潜在能力。

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