phototrophic bacterium

例句：

1. 1.The bacteria are phototrophic and need light to grow.
   这些细菌是光合的，需要光来生长。
2. 2. Phototrophic bacteria can convert sunlight into energy.
   光合细菌可以将阳光转化为能量。
3. 3. Phototrophic bacteria play a crucial role in the ecosystem.
   光合细菌在生态系统中起着至关重要的作用。