1. Leucoplasts are responsible for synthesizing and storing starch in plant cells.

白色质体负责合成和储存植物细胞中的淀粉。

2. The leucoplasts in this plant species contain abundant oils, which contribute to the nutritional value of its seeds.

这种植物的白色质体含有丰富的油脂，这些油脂为其种子的营养价值作出了贡献。