Exogenous GR24 Alleviates Cadmium Toxicity by Reducing Cadmium Uptake in Switchgrass (Panicum virgatum) Seedlings
文献类型: 外文期刊
作者: Tai, Zhenglan 1 ; Yin, Xinqiang 1 ; Fang, Zhigang 1 ; Shi, Gaoling 3 ; Lou, Laiqing 1 ; Cai, Qingsheng 1 ;
作者机构: 1.Nanjing Agr Univ, Coll Life Sci, Nanjing 210095, Jiangsu, Peoples R China
2.Kashghar Univ, Kashghar 844006, Peoples R China
3.Jiangsu Acad Agr Sci, Prov Key Lab Agrobiol, Nanjing 210014, Jiangsu, Peoples R China
关键词: Strigolactones;cadmium;root architecture;subcellular distribution;antioxidant enzymes;endogenous GR24
期刊名称:INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH ( 影响因子:3.39; 五年影响因子:3.789 )
ISSN: 1660-4601
年卷期: 2017 年 14 卷 8 期
页码:
收录情况: SCI
摘要: Strigolactones (SLs) are classified into plant hormones, playing a key role as a mediator of plant growth in response to several abiotic stresses, including drought and salinity. However, the role of SLs in cadmium (Cd)-induced stress to plants is still unknown. The physiological responses of switchgrass (Panicum virgatum) stressed in 10 mu mol L-1 Cd to exogenous synthetic SLs analog, GR24 were studied in hydroponics. The Cd stress significantly caused the adverse effects on plant growth and root morphology, inhibited photosynthesis, but boosted lipid peroxidation of Switchgrass seedlings. After treatment of 1 mu mol L-1 GR24, the above adverse effects caused by Cd stress were significantly alleviated, mainly reflects in improvement of shoot biomass, relative water content, root development, chlorophyll contents, activities of typical antioxidant enzymes, nutrient uptake. The reason for exogenous GR24 alleviating cadmium toxicity might be owing to that exogenous GR24 promoted the content of endogenous SLs, increased some essential element Fe (iron), Zn (zinc), Mn (manganese) and Cu (copper) uptake and reduced cadmium uptake, accumulation and partition in shoot of switchgrass seedlings.
- 相关文献
作者其他论文 更多>>
-
Antibiotics and antibiotic resistance change bacterial community compositions in marine sediments
作者:Kong, Ming;Wang, Wanzhong;Zhang, Yu;Ma, Yan;Fang, Hao;Zhang, Shuai;Shi, Gaoling;Yan, Yan
关键词:Antibiotics; Antibiotic -resistant bacteria; Extracellular antibiotic -resistant genes; Bacterial communities; Marine sediments
-
Activating plant immunity: the hidden dance of intracellular Ca2+ stores
作者:Wang, Qi;Yan, Haiqiao;Zhang, Zilu;Li, Wei;He, Jinyu;Lou, Laiqing;Chang, Ming;Cang, Xiaoyan;Zhang, Meixiang;Wang, Ran
关键词:Ca2+ signal; Ca2+ store; chloroplast; cytoskeleton; ER; mitochondrion; organelle; plant immunity
-
Interactive Effects of Inorganic-Organic Compounds on Passivation of Cadmium in Weakly Alkaline Soil
作者:Tong, Fei;Huang, Qin;Liu, Lizhu;Fan, Guangping;Shi, Gaoling;Lu, Xin;Gao, Yan;Tong, Fei;Huang, Qin;Liu, Lizhu;Fan, Guangping;Shi, Gaoling;Lu, Xin;Gao, Yan;Tong, Fei;Huang, Qin;Liu, Lizhu;Fan, Guangping;Shi, Gaoling;Lu, Xin;Gao, Yan;Gao, Yan
关键词:heavy metal; Cd; immobilization; remediation; amendment; synergistic effect
-
Diluted pyroligneous vinegar promoted Rhododendron growth by changing functional genes involved in N cycling in the rhizosphere
作者:Zhou, Huimin;He, Lisi;Liu, Xiaoqing;Shi, Gaoling;Sun, Xiaobo;Su, Jiale;Li, Chang;Chen, Junhui;van Zwieten, Lukas;Pan, Genxing
关键词:Nitrogen use efficiency; amoA; nirS; Biochar
-
Agronomic and ionomics indicators of high-yield, mineral-dense, and low-Cd grains of wheat (Triticum aestivum L.) cultivars
作者:Yi, Qingsong;Wang, Yi;Yi, Qingsong;Yi, Chao;Zhou, Huimin;Tong, Fei;Liu, Lizhu;Gao, Yan;Shi, Gaoling;Yi, Chao;Tong, Fei;Liu, Lizhu;Gao, Yan;Shi, Gaoling;Yi, Chao;Gao, Yan;Shi, Gaoling;Li, Linxin;Gao, Yan;Shi, Gaoling;Chen, Yinglong;Chen, Yinglong
关键词:Agronomic character; Cadmium; High yield; Iron; Wheat; Zinc
-
Foliar application of selenium nanoparticles alleviates cadmium toxicity in maize (Zea mays L.) seedlings: Evidence on antioxidant, gene expression, and metabolomics analysis
作者:Wang, Min;Mu, Chunyi;Li, Yuliang;Wang, Yixuan;Ma, Wenyan;Ge, Chenghao;Cheng, Cheng;Li, Hongbo;Zhou, Dongmei;Cheng, Cheng;Shi, Gaoling
关键词:Cadmium; Foliar application; Metabolic responses; Selenium nanoparticles; Transporter genes
-
Enhanced simultaneous arsenite oxidation and sorption by Mn-modified biochar: Insight into the mechanisms under optimal modification condition
作者:Huang, Qin;Chen, Jinlin;Qu, Zhiqiang;Huang, Qin;Tong, Fei;Gao, Yan;Qu, Zhiqiang;Fan, Guangping;Chen, Wei;Shi, Gaoling;Gao, Yan;Zhou, Dongmei
关键词:Manganese-modified biochar; Mn-oxides; Arsenite; Oxidation; Removal