研究了球形红假单胞菌与酿酒酵母菌的原生质体融合条件，并对融合子性能进行了测定。
The results of the protoplast fusion between Rhodopseudomonas spheroides and Sacchaaromyces cerevisiae were studied in this paper.
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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