Phytoremediation of secondary saline soil by halophytes with the enhancement of gamma-polyglutamic acid
文献类型： 外文期刊
作者： Mu, Yue 1 ; Tang, Dong 1 ; Mao, Liang 2 ; Zhang, Dan 2 ; Zhou, Pei 2 ; Zhi, Yuee 2 ; Zhang, Jinzhong 1 ;
作者机构： 1.Southwest Univ, Coll Resources & Environm, Chongqing Key Lab Agr Resources & Environm, Chongqing 400715, Peoples R China
2.Shanghai Jiao Tong Univ, Sch Agr & Biol, Key Lab Urban Agr South, Minist Agr & Rural Affairs, Shanghai 200240, Peoples R China
3.Kaizhou Reform Res Ctr, Chongqing 405400, Peoples R China
4.Hunan Univ Arts & Sci, Coll Life & Environm Sci, Changde 415000, Hunan, Peoples R China
关键词： Secondary saline soil; gamma-Polyglutamic acid; Halophytes; Phytoremediation; Enhanced remediation
期刊名称：CHEMOSPHERE （ 影响因子：7.086； 五年影响因子：6.956 ）
ISSN： 0045-6535
年卷期： 2021 年 285 卷
页码：
收录情况： SCI
摘要： Soil salinization has severely affected the quality of tillage land in China, and most greenhouse soils in Shanghai suburb suffer from secondary salinization with high salinity levels dominated by Ca2+, Mg2+ and NO3-. In this work, a sandy loam soil (Calcaric Fluvisols) contaminated by the above ions was selected as research object, and the binding conditions and abilities of gamma-polyglutamic acid (gamma-PGA) to water-soluble Ca2+ and Mg2+ in the soil were examined, and then pot experiments were conducted to remove Ca2+, Mg2+ and NO3- by two halophytes (Sedum aizoon L., Sesbania cannabina Pers.) integrated with gamma-PGA application. The results showed that under the conditions of adding 1000 mg L-1 gamma-PGA (pH 7) and 25 degrees C, the binding efficiencies of Ca2+ and Mg2+ were 51.59% and 68.03%, respectively. Compared with Sesbania cannabina Pers., Sedum aizoon L. displayed better remediation performance for the soil with gamma-PGA application in pot experiments, and the removal efficiencies of Ca2+, Mg2+ and NO3- reached 93.25%, 94.78% and 84.26% after applying 1000 mg L-1 gamma-PGA for 56 d, respectively. Moreover, gamma-PGA application could mitigate salt stress and promote plant growth, and activate antioxidant defense systems. Compared with the control, 1000 mg L-1 gamma-PGA application significantly increased plant height and fresh weight of Sedum aizoon L., and the removal efficiencies of Ca2+, Mg2+ and NO3- increased by 45.48%, 82.62% and 69.91%, respectively. In the future, more in-depth mechanism of joint effect and field-scale investigation need to be further studied.
- 相关文献
作者其他论文 更多>>
-
WGCNA and transcriptome profiling reveal hub genes for key development stage seed size/oil content between wild and cultivated soybean
作者：Yao, Yanjie;Xiong, Erhui;Qu, Xuelian;Li, Junfeng;Liu, Hongli;Quan, Leipo;Lu, Wenyan;Zhu, Xuling;Chen, Meiling;Li, Ke;Chen, Xiaoming;Zhang, Dan;Chu, Shanshan;Jiao, Yongqing;Yao, Yanjie;Zhou, Xinan;Jiao, Yongqing;Yao, Yanjie;Lian, Yun;Lu, Weiguo
关键词：Soybean; Oil content; Seed size; Transcriptome; WGCNA; Correlation analysis
-
Bioavailability-based risk assessment of various heavy metals via multi-exposure routes for children and teenagers in Beijing, China
作者：Du, Zhongwen;Tian, Zuguang;Yin, Yelan;Wei, Junxiao;Mu, Yue;Cai, Jianjun;Song, Zefeng;Cen, Kuang
关键词：Heavy metal; Multiple exposure routes; Bioavailability; Non-carcinogenic risk; Carcinogenic risk
-
Interactions and quantification of multiple influencing factors on cadmium accumulation in soil-rice systems at a large region
作者：Mu, Yue;Cui, Jingxin;Liu, Andi;Shi, Qiujun;Wei, Shiqiang;Zhang, Jinzhong;Wang, Shuai;Wang, Jing
关键词：Cadmium accumulation; Soil -rice systems; Influencing factors; Interactions; Quantification
-
Efficient degradation of 2,4-dichlorophenol in water by sequential electrocatalytic reduction and oxidation with a Pd-MWCNTs/Ni-foam electrode
作者：Huang, Weibin;Liu, Andi;Fu, Yuanhang;Zhang, Jinzhong;Tang, Bobin
关键词：Pd-MWCNTs; Ni-foam electrode; 2; 4-Dichlorophenol; Sequential electrocatalytic reduction and oxidation; Mineralization; Electro-Fenton oxidation; Degradation mechanism
-
Electrochemical oxidation of carbamazepine in water using enhanced blue TiO2 nanotube arrays anode on porous titanium substrate
作者：Huang, Weibin;Fu, Yuanhang;Guo, Chunhui;Zhang, Jinzhong;Huang, Yue;Tang, Bobin
关键词：Electrochemical oxidation; Carbamazepine; BlueTiO(2) nanotube arrays anode; Porous titanium substrate; Degradation mechanism
-
Does biochar inhibit the bioavailability and bioaccumulation of As and Cd in co-contaminated soils? A meta-analysis
作者：Tian, Xiaosong;Zhang, Jinzhong;Zhao, Xiulan;Tian, Xiaosong;Zhang, Jinzhong;Zhao, Xiulan;Wang, Dingyong;Chai, Guanqun
关键词：Biochar; Arsenic (As); Cadmium (Cd); Soil remediation; Bioaccumulation; Meta-analysis
-
Persulfate-enhanced degradation of ciprofloxacin with SiC/g-C3N4 photocatalyst under visible light irradiation
作者：Zhu, Hongqing;Zhang, Jinzhong;Zhu, Hongqing;Yang, Bing;Yang, Jingjing;Yuan, Ying
关键词：Metal-free photocatalyst; Potassium persulfate; Antibiotic; Degradation pathways; Biotoxicity change
