Abstract：
:Phytoremediation technology has been applied for heavy metal elimination for many years, however little research about the difference of remediation efficiency of hyperaccumulator in different soils was reported. Here, a pot experiment was conducted with a cadmium (Cd)/zinc hyperaccumulator Sedum alfredii Hance grown on different types of soils and the differences of its endophytic bacterial community were elucidated. The results showed that the biomass of S. alfredii grown on black soil under both low and high Cd treatment was much heavier than that grown on other soils, and Cd uptake and Cd accumulation of S. alfredii in paddy soil was the highest, suggesting that black soil was more suitable for S. alfredii growth while paddy soil was more efficient for Cd phytoextraction. Moreover, Cd treated level and soil type both affected the structure of plant endophytic bacterial community. The two shared genera in the four representative soils were Caulobacter and Acinetobacter under low Cd level, and Caulobacter and Lactobacillus under high Cd level. Cd treatment shifted the structure and abundance of plant endophytes in different types of soils, while black soil and paddy soil were more similar in the distribution and abundance of S. alfredii endophytic community. This study highlighted the understanding of response to Cd within S. alfredii endophytic community in different types of soils, which could be beneficial for enhanced phytoremediation efficiency and better S. alfredii cultivation.
journal_name
Chemospherejournal_title
Chemosphereauthors
Qiong W,Fengshan P,Xiaomeng X,Rafiq MT,Xiao'e Y,Bao C,Ying Fdoi
10.1016/j.chemosphere.2020.127986subject
Has Abstractpub_date
2021-01-01 00:00:00pages
127986eissn
0045-6535issn
1879-1298pii
S0045-6535(20)32181-0journal_volume
263pub_type
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