Physical Sciences and Mathematics Commons^™

Influence And Interaction Of Iron And Cadmium On Photosynthesis And Antioxidative Enzymes In Two Rice Cultivars, Houjun Liu, Chengxin Zhang, Junmei Wang, Chongjun Zhou, Huan Feng, Manoj D. Mahajan, Xiaori Han

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

In this study, a soil pot experiment was conducted to investigate the changes in photosynthesis and antioxidative enzymes in two rice varieties (Shendao 6 and Shennong 265) supplied with iron (Fe), cadmium (Cd), and Fe and Cd together. The concentrations of Fe and Cd in the soil were 0, 1.0 g Fe·kg−1and 0, 2.0 mg Cd·kg−1, respectively. Photosynthetic indices and antioxidative enzyme activities were recorded at different rice growth stages. At the early stage, Cd showed a transient stimulatory effect on the photosynthetic rate of Shennong 265. For Shendao 6, however, Cd showed a transient stimulatory effect on photosynthetic rate, …