Cadmium accumulation characteristics of the winter farmland weeds Cardamine hirsuta Linn. and Gnaphalium affine D. Don
文献类型： 外文期刊
作者： Lin, Lijin 1 ; Shi, Jun 2 ; Liu, Qihua 3 ; Liao, Ming'an 1 ; Mei, Luoyin 1 ;
作者机构： 1.Sichuan Agr Univ, Coll Hort, Yaan 625014, Sichuan, Peoples R China
2.Mianyang Acad Agr Sci, Mianyang 621023, Sichuan, Peoples R China
3.Shandong Acad Agr Sci, Rice Res Inst, Jinan 250100, Shangdong, Peoples R China
关键词： Cardamine hirsuta Linn; Gnaphalium affine D. Don; Cadmium; Hyperaccumulator
期刊名称：ENVIRONMENTAL MONITORING AND ASSESSMENT （ 影响因子：2.513； 五年影响因子：2.871 ）
ISSN： 0167-6369
年卷期： 2014 年 186 卷 7 期
页码：
收录情况： SCI
摘要： In a preliminary study, we found that the cadmium (Cd) concentrations in shoots of the winter farmland weeds Cardamine hirsuta Linn. and Gnaphalium affine D. Don exceeded the critical value of a Cd-hyperaccumulator (100 mg kg(-1)), indicating that these two farmland weeds might be Cd-hyperaccumulators. In this study, we grew these species in soil containing various concentrations of Cd to further evaluate their Cd accumulation characteristics. The biomasses of C. hirsuta and G. affine decreased with increasing Cd concentrations in the soil, while the root/shoot ratio and the Cd concentrations in shoot tissues increased. The Cd concentrations in shoots of C. hirsuta and G. affine reached 121.96 and 143.91 mg kg(-1), respectively, at the soil Cd concentration of 50 mg kg(-1). Both of these concentrations exceeded the critical value of a Cd-hyperaccumulator (100 mg kg(-1)). The shoot bioconcentration factors of C. hirsuta and G. affine were greater than 1. The translocation factor of C. hirsuta was less than 1 and that of G. affine was greater than 1. These findings indicated that C. hirsuta is a Cd-accumulator and G. affine is Cd-hyperaccumulator. Both plants are distributed widely in the field, and they could be used to remediate Cd-contaminated farmland soil in winter.
- 相关文献
作者其他论文 更多>>
-
Full-Length Transcriptome Sequencing and hsp Gene Family Analysis Provide New Insights into the Stress Response Mechanisms of Mystus guttatus
作者：Qin, Lang;Zhang, Xueling;Li, Yu;Luo, Hui;Ye, Hua;Zhang, Xueling;Luo, Hui;Ye, Hua;Zhang, Xueling;Li, Yusen;Shi, Jun;Han, Yaoquan;Wang, Dapeng;Lin, Yong
关键词：full-length transcriptome; stress response mechanisms; heat shock protein;
Mystus guttatus -
Identification and distribution of fungal pathogens associated with seedling blight of rice in the southern United States
作者：Gaire, Shankar P.;Zhou, Xin-Gen;Zhou, Yong;Shi, Jun;Zhou, Yong;Shi, Jun;Jo, Young-Ki
关键词：fungi; Oryza sativa; pathogenicity; seedling blight; survey
-
Effects of tea application on cadmium, phosphorus, and iron accumulations in rice (Oryza sativa L.) seedlings
作者：Shi, Jun;Liu, Dingyou;Xiang, Zufen;Liao, Shuang;Yu, Huaqing;Huang, Tingyou;Hu, Rongping;Li, Qin;Li, Xiufen;Li, Yan
关键词：cadmium; iron; phosphorus; rice (Oryza sativa L.); tea
-
Nucleic Acid Aptamers for Pesticides, Toxins, and Biomarkers in Agriculture
作者：Hu, Rongping;Chen, Xiaojuan;Shi, Jun;Tian, Cheng;Zuo, Hua
关键词：agriculture; aptamers; aptasensor; nucleic acids; SELEX
-
Hybrid Rice Outperforms Inbred Rice in Resistance to Sheath Blight and Narrow Brown Leaf Spot
作者：Shi, Jun;Zhou, Xin-Gen;Yan, Zongbu;Tabien, Rodante E.;Wilson, Lloyd T.;Wang, Li;Shi, Jun;Wang, Li
关键词：causal agent; Cercospora janseana; host resistance; cultivar; disease resistance; fungi; hybrid rice; inbred rice; Rhizoctonia solani; susceptibility
-
Host-Induced Gene Silencing of MoAP1 Confers Broad-Spectrum Resistance to Magnaporthe oryzae
作者：Xiong, Hong;Xu, Fu-Xian;Li, Yan;Fan, Jing;Shi, Yi;Zhao, Ji-Qun;Wang, Wen-Ming;Shi, Jun;Wang, Yi-Fu;Cao, Xiao-Long
关键词：host-induced gene silencing; rice blast; small interfering RNA; MoAP1; resistance
-
Intercropping with hyperaccumulator plants decreases the cadmium accumulation in grape seedlings
作者：Liao, Ming'an;Hu, Rongping;Zhang, Zijing;Lin, Lijin;Tang, Yi;Liang, Dong;Xia, Hui;Wang, Jin;Wang, Xun;Lv, Xiulan;Ren, Wei
关键词：Grape seedlings; intercropping; hyperaccumulator; cadmium; phytoremediation
