由于Fryx1株是一个紫色非硫细菌，所以这是第一个真正的单独浮游在这种紫色光合细菌组的细菌(van Gemerden and Mas 1995)。

Because strain Fryx1 is a purple non-sulfur bacterium, this is the first example of a truly planktonic isolate among this group of phototrophic purple bacteria (van Gemerden and Mas 1995).

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从污泥中分离得到光合细菌球形红假单胞菌P_4株。

Strain P_4 of photosynthetic bacterium Rhodopseudomonas sphaeroides was separated from sludge.

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