The meristematic nuclei in wheat nodule-like were very large and rounder, a nucleus generally possessed a nucleolus, some nucleoli had nucleolar vacuoles but only a nucleolus usually had a nucleolar vacuole.

• 摘要在小麦类根瘤中，分生细胞核很大，而且较圆整，一般为一个核仁，有的核仁还有核仁泡，但通常一个核仁只有一个核仁泡，染色质较少，呈团块状分布。