pleurorhizal

例句：

1. 1. Pleurorhizalnodules are a common feature ofmany agricultural systems.
   根瘤瘤是许多农业系统中的常见特征。
2. 2. The bacteriain the rhizobia can fix nitrogen from theair, which is essential for plantgrowth.
   根瘤菌中的细菌可以从空气中固定氮，这对于植物生长至关重要。
3. 3. In somecases, these bacteria can also help plantswithstand drought conditions by forming root nodules that store water.
   在某些情况下，这些细菌还可以帮助植物抵御干旱条件，通过形成储存水分的根瘤。