Cd accumulation characteristics of Salvia tiliifolia and changes of rhizospheric soil enzyme activities and bacterial communities under a Cd concentration gradient

doi:10.1007/s11104-021-04905-0

KIB OpenIR

	Cd accumulation characteristics of Salvia tiliifolia and changes of rhizospheric soil enzyme activities and bacterial communities under a Cd concentration gradient
	Li,Xiong; Chen,Di ; Li,Boqun ; Yang,Yongping
	2021
发表期刊	PLANT AND SOIL
ISSN	0032-079X
卷号	463 期号:1-2 页码:225-247
摘要	Purpose This study aimed to explore the phytoremediation potential of Salvia tiliifolia for cadmium (Cd)-contaminated soils and to understand the interactions in soil-Cd-plant systems. Methods We assessed the Cd tolerance and accumulation characteristics of S. tiliifolia grown in soils with 0, 5, 25, and 50 mg kg(- 1) Cd for 3 months. We also analysed the changes in physicochemical properties, enzyme activities, and bacterial community composition in the rhizosphere soils of S. tiliifolia. Results S. tiliifolia could tolerate all Cd concentrations with unchanged biomass. Cd concentrations (21.50-189.50 mg kg(- 1)) in roots of S. tiliifolia and corresponding bioconcentration factors (3.79-4.30) were much higher than those in shoots, and Cd translocation factors (0.03-0.23) were thereby very low. Rhizosphere pH decreased with increasing concentrations of Cd. Soil pH and rich organic matter may jointly affect the soil available Cd. Ultimately, soil enzyme activities involved in carbon, nitrogen, and phosphorus cycles were affected to varying degrees, and bacterial diversity and richness were slightly influenced by Cd stress. Interestingly, bacterial ABC transporters were induced by Cd stress during this process. Conclusions S. tiliifolia can be designed as a Cd excluder. The induced soil bacterial ABC transporters may contribute to Cd detoxification and accumulation in both soil microbial communities and S. tiliifolia plants.
关键词	Cadmium Phytoremediation Rhizosphere effect Soil microbial community Salvia tiliifolia
DOI	10.1007/s11104-021-04905-0
WOS记录号	WOS:000629960800001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73142
专题	中国科学院昆明植物研究所
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China 2.Yunnan Univ, Sch Life Sci, Kunming 650091, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Li,Xiong,Chen,Di,Li,Boqun,et al. Cd accumulation characteristics of Salvia tiliifolia and changes of rhizospheric soil enzyme activities and bacterial communities under a Cd concentration gradient[J]. PLANT AND SOIL,2021,463(1-2):225-247.
APA	Li,Xiong,Chen,Di,Li,Boqun,&Yang,Yongping.(2021).Cd accumulation characteristics of Salvia tiliifolia and changes of rhizospheric soil enzyme activities and bacterial communities under a Cd concentration gradient.PLANT AND SOIL,463(1-2),225-247.
MLA	Li,Xiong,et al."Cd accumulation characteristics of Salvia tiliifolia and changes of rhizospheric soil enzyme activities and bacterial communities under a Cd concentration gradient".PLANT AND SOIL 463.1-2(2021):225-247.