Effects of Decabromodiphenyl Ether and Elevated Carbon Dioxide on Rice (Oryza sativa L.)

• Published in: Bulletin of environmental contamination and toxicology Vol. 105; no. 2; pp. 237 - 243
• Main Authors: Mao, Lu, Wang, Ya-Bo, Zhu, Chun-Wu, Yin, Ying, Guo, Hong-Yan
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.08.2020; Springer Nature B.V
• Subjects: Aquatic Pollution; Carbon dioxide; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Grain; Oryza sativa; Phosphorus; Photosynthesis; Pollution; Rice; Soil pollution; Soil Science & Conservation; Starch; Sugar; Waste Water Technology; Water Management; Water Pollution Control; Biomass; Photosynthesis; Carbon dioxide; BDE-209; Rice
• ISSN: 0007-4861; 1432-0800
• DOI: 10.1007/s00128-020-02928-4

We assessed the effects of carbon dioxide (CO 2 ) and decabromodiphenyl ether (BDE-209, 0, 3 and 30 mg/kg) on rice ( Oryza sativa L. cv. Wuyunjing) in field free-air CO 2 enrichment system. Rice at elevated (580 ppm) CO 2 had increased net photosynthetic rate, intercellular CO 2 concentration, shoot biomass, yield and phosphorus content in grains. However, there were no significant changes in such parameters observed on rice at elevated CO 2 combined with BDE-209 (3 and 30 mg/kg). Elevated CO 2 alone had no significant effects on sugar or starch content in rice grains, whereas its combination with BDE-209 (3 mg/kg) significantly decreased grain sugar and starch content. In conclusion, rice reared in soil polluted by BDE-209 under elevated CO 2 modulates the effects in grain feature.