phytoene

例句：

1. 1.The phytoene pigments are responsible for the green color of plants.
   叶绿素a是植物绿色的原因。
2. 2. Phytoene is a key compound in photosynthesis.
   叶绿素a是光合作用的关键化合物。
3. 3. The phytoene pigments play a crucial role in plant growth and development.
   叶绿素a在植物生长和发育中起着关键作用。