Exploring the negative effects of biochars on the germination, growth, and antioxidant system of rice and corn
文献类型： 外文期刊
作者： Bai, Xiaohan 1 ; Zhang, Shijing 1 ; Shao, Jihai 1 ; Chen, Anwei 1 ; Jiang, Jinlin 3 ; Chen, Ang 2 ; Luo, Si 1 ;
作者机构： 1.Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China
2.Hunan Acad Agr Sci, Plant Protect Inst Hunan Prov, Changsha 401125, Peoples R China
3.Nanjing Inst Environm Sci, Key Lab Soil Environm Management & Pollut Control, Minist Ecol & Environm Peoples Republ China, Nanjing 210042, Peoples R China
关键词： Biochar; Phytotoxicity; Seed germination; Antioxidant enzymes; Free radicals
期刊名称：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING （ 影响因子：7.968； 五年影响因子：7.317 ）
ISSN： 2213-2929
年卷期： 2022 年 10 卷 3 期
页码：
收录情况： SCI
摘要： This study investigated the effects of biochars pyrolyzed at different temperatures on plant germination and growth and attempted to determine the mechanisms underlying those effects. The experimental results showed that phytotoxicity of biochar pyrolyzed at 500 or 800 degrees C was significantly higher than that of biochar pyrolyzed at 200 degrees C, especially at high dosages (200.0 and 300.0 g/L). However, concentrations of heavy metals and polycyclic aromatic hydrocarbon (PAHs) in biochar pyrolyzed at 500 and 800 degrees C were lower than those in biochar pyrolyzed at 200 degrees C. The inhibitory effect of aqueous biochar extract on seed germination was significantly weaker than that of biochar. Electron paramagnetic resonance (EPR) signal intensity was enhanced with increasing pyrolysis temperature, which indicates the existence of a greater number of free radicals. Furthermore, center dot OH and center dot O-2(-) were the primary reactive oxygen species in the biochar system. It can be concluded that the phytotoxicity of biochar pyrolyzed at high temperatures (> 500 degrees C) enables to attributing free radical-induced oxidative damage, whereas that of biochar produced at low temperatures (200 degrees C) results in the presence of conventional contaminants (such as heavy metals and PAHs). The information obtained in this study provides a more comprehensive understanding of the potential risk of free radicals in plant system biochar.
- 相关文献
作者其他论文 更多>>
-
Assessment of the combined response of heavy metals and human pathogens to different additives during composting of black soldier fly manure
作者：Wang, Nanyi;He, Yong;Zhang, Jiachao;Chen, Anwei;Luo, Lin;Wang, Nanyi;He, Yong;Peng, Hua;Zhang, Jiachao;Zhao, Xichen;Chen, Anwei;Wan, Dan;Luo, Lin;He, Liuqin;Zhang, Xiaobing;Wang, Ying;Peng, Hua;Zhang, Jiachao;Zhao, Xichen;Wan, Dan;He, Liuqin;Zhao, Xichen;Qi, Renli;Wan, Dan;He, Liuqin
关键词：Composting; Black soldier fly manure; Heavy metal; Pathogen; Pollution reduction
-
Carbon-nitrogen-phosphorus level regulation of potentially toxic elements and enzyme activities in paddy soil aggregates: Straw and organic fertilizer effects
作者：Zhao, Keqi;Xiao, Wenbo;Wang, Nanyi;Zhang, Jiachao;Chen, Anwei;Luo, Lin;Zhao, Xichen;Zhao, Keqi;Xiao, Wenbo;Wang, Nanyi;Peng, Hua;Zhang, Jiachao;Chen, Anwei;Wan, Dan;Luo, Lin;He, Liuqin;Zhao, Xichen;Zhang, Xiaobing;Wang, Ying;Peng, Hua;Qi, Renli;Wan, Dan;He, Liuqin;Zhao, Xichen;Yu, Fangying;Wan, Dan;He, Liuqin;Zhao, Xichen
关键词：Organic amendments; Soil biochemical indicators; Sustainable field management; Bioavailability
-
Mechanisms of N2O emission reduction during agricultural straw composting: functional gene regulation and bacterial community dynamics mediated by exogenous microbial inoculants
作者：He, Yuewei;Hu, Fenglong;Du, Zan;Liu, Ping;Huang, Hongli;Yan, Binghua;Chen, Anwei;Zhang, Jiachao;He, Yuewei;Hu, Fenglong;Du, Zan;Liu, Ping;Huang, Hongli;Yan, Binghua;Chen, Anwei;Zhang, Jiachao;Cui, Xinwei;Cai, Yixiang;Zhao, Xichen;Zhao, Xichen;Qi, Renli
关键词：Composting; N2O emission reduction; Thermophilic bacteria inoculation; Nitrogen cycling functional gene; Crucial factors
-
Enhanced cadmium absorption and tolerance of rice epiphytic microbes by iron oxide nanoparticles
作者：Ding, Siduo;Hu, Zhong;Liu, Yuling;Li, Li;Zeng, Yuhui;Jin, Doudou;Chen, Anwei;Shao, Jihai;Luo, Si;Su, Pin
关键词：Biosorption; Cd; EPS; IONPs; Protein; Polysaccharide
-
Relative contribution of ammonia-oxidizing bacteria and denitrifying fungi to N2O production during rice straw composting with biochar and biogas residue amendments
作者：Lin, Xu;Wang, Nanyi;Chen, Anwei;Wu, Genyi;Zhang, Jiachao;Zhang, Lihua;Huang, Hongli;Yan, Binghua;Luo, Lin;Lin, Xu;Wang, Nanyi;Chen, Anwei;Zhang, Jiachao;Zhang, Lihua;Huang, Hongli;Yan, Binghua;Luo, Lin;Al-Dhabi, Naif Abdullah;Li, Fanghong;Peng, Hua;Tang, Wangwang
关键词：Composting; N2O emission; Biogas residue; Biochar; amoA-AOB; nirK-fungi
-
Role of nuclear receptors NlHR3 and NlFTZ-F1 in regulating molting and reproduction in Nilaparvata lugens (stal)
作者：Li, Kailong;Liu, Kanghong;Wang, Xing;Ma, Mingyong;Luo, Xiangwen;Chen, Wuying;Chen, Ang;Peng, Zhaopu;Zhang, Deyong
关键词：HR3; FTZ-F1; Nilaparvata lugens; molting; reproduction
-
Quorum Sensing Is Required for the Colony Establishment of a Plant Phyllosphere Bacterium Rhodopseudomonas palustris Strain GJ-22
作者：Zhang, Weixing;Peng, Qianze;Gu, Zepei;Liu, Zhuoxin;Zhang, Deyong;Cheng, Ju'e;Zheng, Limin;Chen, Ang;Liu, Yong;Su, Pin;Chen, Lijie;Liu, Yong;Su, Pin
关键词：phyllosphere; bacterial quorum sensing mechanism; cell aggregation
