大头菜是卷心菜和西兰花的近亲，是一种类似于芜菁的根类蔬菜，有淡绿色或紫色和白色的条纹。
A cousin of cabbage and broccoli, kohlrabi is a turnip-like root vegetable that is either light green or purple and white striped.
此外，不像Chromatium okenii等一类紫色浮游细菌，其细胞具有高度游动性Schlegel and Pfennig 1961； van Gemerden and Mas 1995 Fryx1只是弱能动性。
Moreover, unlike planktonic purple bacteria such as Chromatium okenii, whose cells are highly motile (Schlegel and Pfennig 1961; van Gemerden and Mas 1995), strain Fryx1 is only weakly motile.
紫色类土壤提供给烟株吸收利用的磷钾养分较多，而氮养分较少。
Purple soil supplied the plants with more phosphorus and potassium nutrition and less nitrogen nutrition.
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