Amomum villosum Lour., a plant that grows in forests, protects itself from sun damage by rolling up its leaves and using a process called the xanthophyll cycle. When exposed to bright sunlight, the plant's photosynthetic system can get damaged. The plant's leaves start to show signs of damage even in low light conditions, but they recover as the light intensity decreases. Preventing the leaves from rolling makes the damage worse. Treating the plant with DTT, a chemical that inhibits the xanthophyll cycle, also worsens the damage. The plant's photosynthetic system can temporarily shut down to protect itself from too much light. These mechanisms work together to keep the plant safe from sun damage.