The effects of salinity and pH variation on hyperaccumulator Bidens pilosa L. accumulating cadmium with dynamic and real-time uptake of Cd2+ influx around its root apexes

doi:10.1007/s11356-023-25213-3

	The effects of salinity and pH variation on hyperaccumulator Bidens pilosa L. accumulating cadmium with dynamic and real-time uptake of Cd2+ influx around its root apexes
	Wang, Siqi 1,3; Dai, Huiping 2; Cui, Shuang 1; Ji, Dandan 3; Skuza, Lidia 4; Li, Lianzhen5 ; Grzebelus, Dariusz 6; Wei, Shuhe 3
发表期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
	2023-01-12
页码	10
关键词	Cd Influx Root apex Bidens pilosa L. Root vigor
DOI	10.1007/s11356-023-25213-3
通讯作者	Wei, Shuhe(shuhewei@iae.ac.cn)
英文摘要	Bidens pilosa L. has been confirmed to be a potential Cd hyperaccumulator by some researchers, but the dynamic and real-time uptake of Cd2+ influx by B. pilosa root apexes was a conundrum up to now. The aim of our study was to investigate the effects of salinity and pH variations on the characteristics of Cd2+ influx around the root apexes of B. pilosa. The tested seedlings of B. pilosa were obtained by sand culture experiments in a greenhouse after 1 month from germination, and the Cd2+ influxes from the root apex of B. pilosa under Cd treatments with different salinity and pH levels were determined with application of non-invasive micro-test technology (NMT). The results showed that Cd2+ influxes at 300 mu m from the root tips decreased under Cd treatments with 5 mM and 10 mM NaCl, as compared to Cd stress alone. However, Cd treatments with 2.5 mM NaCl had little effect on the net Cd2+ influxes, as compared to Cd treatments alone. Importantly, Cd treatments at pH = 4.0 markedly increased Cd2+ influxes in roots, and Cd treatment at pH = 7.0 had no significant effect on the net Cd2+ influxes compared to Cd treatments at pH = 5.5. Results also showed that Cd treatments with 10 mM NaCl significantly decreased concentrations of chlorophyll (Chl) a and b in leaves and root vigor of B. pilosa relative to Cd treatments alone, while there were no significant differences between Cd treatments with 2.5 mM NaCl and Cd treatments alone. But root vigor was inhibited significantly under Cd treatments with 5 mM and 10 mM NaCl. A significant increase of root vigor was observed in Cd treatments at pH = 4.0, as compared to pH = 5.5. The Cd treatments with high and medium concentrations of NaCl inhibited the uptake of Cd by B. pilosa roots and affected the Chl and root vigor further. But the Cd treatments at pH = 4.0 could promote the Cd uptake and root vigor. Our results revealed the uptake mechanisms of B. pilosa as a potential phytoremediator under different salinity and pH levels combined with Cd contamination and provided a new idea for screening ideal hyperaccumulator and constructing evaluation system.
资助机构	Open Fund of Cultivation State Key Laboratory of Qinba Biological Resources and Ecological Environment of Shaanxi University of Technology, China ; Scientific research project of City-University co-construction of Shaanxi Province, China ; project of Foreign Experts Bureau of Shaanxi province of China, China ; Scientific Research Funds for the Innovation Team Construction Plan of Shenyang Ligong University ; Shenyang Scientific Plan Project
收录类别	SCI
语种	英语
关键词[WOS]	SOIL ; TOLERANCE ; DETOXIFICATION ; RESPONSES ; PATHWAYS ; FLUXES
研究领域[WOS]	Environmental Sciences & Ecology
WOS记录号	WOS:000913508300004
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/32521
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Wei, Shuhe
作者单位	1.Shenyang Ligong Univ, Acad Environm & Chem Engn, Shenyang 110159, Liaoning, Peoples R China 2.Shaanxi Univ Technol, Coll Biol Sci & Engn, Shaanxi Prov Key Lab Bioresources, Qinling-Bashan Mt Bioresources Comprehens Dev CIC,, Hanzhong 723001, Peoples R China 3.Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Peoples R China 4.Univ Szczecin, Inst Biol, Ctr Mol Biol & Biotechnol, PL-71415 Szczecin, Poland 5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 6.Agr Univ Krakow, Fac Biotechnol & Hort, Dept Plant Biol & Biotechnol, PL-31120 Krakow, Poland
推荐引用方式 GB/T 7714	Wang, Siqi,Dai, Huiping,Cui, Shuang,et al. The effects of salinity and pH variation on hyperaccumulator Bidens pilosa L. accumulating cadmium with dynamic and real-time uptake of Cd2+ influx around its root apexes[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2023:10.
APA	Wang, Siqi.,Dai, Huiping.,Cui, Shuang.,Ji, Dandan.,Skuza, Lidia.,...&Wei, Shuhe.(2023).The effects of salinity and pH variation on hyperaccumulator Bidens pilosa L. accumulating cadmium with dynamic and real-time uptake of Cd2+ influx around its root apexes.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,10.
MLA	Wang, Siqi,et al."The effects of salinity and pH variation on hyperaccumulator Bidens pilosa L. accumulating cadmium with dynamic and real-time uptake of Cd2+ influx around its root apexes".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2023):10.