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Tang Y, Xie Y, Sun G, Tan H, Lin L, Li H, Liao M, Wang Z, Lv X, Liang D, Xia H, Wang X, Wang J, Xiong B, Zheng Y, He Z, Tu L. Cadmium- accumulator straw application alleviates cadmium stress of lettuce (Lactuca sativa) by promoting photosynthetic activity and antioxidative enzyme activities. Environ Sci Pollut Res Int 2018; 25:30671-30679. [PMID: 30178407 DOI: 10.1007/s11356-018-2822-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/20/2018] [Indexed: 05/15/2023]
Abstract
The effects of application of straw derived from cadmium (Cd) accumulator plants (Siegesbeckia orientalis, Conyza canadensis, Eclipta prostrata, and Solanum photeinocarpum) on growth and Cd accumulation of lettuce plants grown under Cd exposure were studied. Treatment with straw of the four Cd-accumulator species promoted growth, photosynthesis, and soluble protein contents and enhanced the activities of peroxidase in leaves of lettuce seedlings. The biomass of shoot of lettuce from high to low in turn is the treatment of C. canadensis straw > S. photeinocarpum straw > S. orientalis > E. prostrata > Control. The Cd content in edible parts (shoots) of the lettuce plants was significantly decreased in the presence of straw from the Cd-accumulator species, except the presence of the straw of E. prostrata. And, the greatest reduction in Cd content in shoots was 27.09% in the S. photeinocarpum straw treatment compared with that of the control. Therefore, application of straw of S. orientalis, C. canadensis, and S. photeinocarpum can promote the growth of lettuce seedlings, and decrease their Cd accumulation, when grown in Cd-contaminated soil, which is beneficial for production of lettuce safe for human consumption.
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Affiliation(s)
- Yi Tang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Yongdong Xie
- College of Horticulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Guochao Sun
- College of Horticulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Huaqiang Tan
- College of Horticulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Lijin Lin
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Huanxiu Li
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China.
| | - Ming'an Liao
- College of Horticulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Zhihui Wang
- College of Horticulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Xiulan Lv
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Dong Liang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Hui Xia
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Xun Wang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Jin Wang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Bo Xiong
- College of Horticulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Yangxia Zheng
- College of Horticulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Zhongqun He
- College of Horticulture, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
| | - Lihua Tu
- College of Forestry, Sichuan Agricultural University, Wenjiang District, Chengdu, 611130, Sichuan, People's Republic of China
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