For aquatic plants such as rice with a systematic ventilating structure, the roots can exchange with the outer air to maintain root respiration. Thus, PAHs in the exchange air stream may be able to enter the rice root system and accumulate.
For aquatic plants such as rice with a systematic ventilatingstructure, the roots can exchange with the outer air to maintainroot respiration. Thus, PAHs in the exchange air stream maybe able to enter the rice root system and accumulate.