对叶片的解剖学分析发现突变体中脉缺少细胞和近轴小维管束，导致披叶表型的产生。

Leaf anatomy results revealed the central vein lacks both clear cells and the adaxial small vascular bundle in dl2 mutant, which seemed to cause the drooping leaf phenotype.

youdao

对叶片的解剖学分析发现突变体中脉缺少细胞和近轴小维管束，导致披叶表型的产生。

Leaf anatomy results revealed the central vein lacks both clear cells and the adaxial small vascular bundle in dl2 mutant, which seemed to cause the drooping leaf phenotype.

youdao