The root-associated Fusarium isolated based on fungal community analysis improves phytoremediation efficiency of Ricinus communis L. in multi metal-contaminated soils

被引：10

作者：

Yao, Huaxiong ^{[1
,2
]}

Shi, Wenguang ^{[1
,2
]}

Wang, Xing ^{[1
,2
]}

Li, Junyan ^{[1
,2
]}

Chen, Meiqi ^{[2
]}

Li, Jianbin ^{[2
]}

Chen, Danting ^{[2
]}

Zhou, Lin ^{[2
]}

Deng, Zujun ^{[1
,2
]}

机构：

[1] Guangdong Pharmaceut Univ, Sch Basic Med Sci, Guangdong Prov Key Lab Pharmaceut Bioact Subst, Guangzhou 510006, Peoples R China

[2] Guangdong Pharmaceut Univ, Sch Life Sci & Biopharmaceut, Guangdong Prov Key Lab Pharmaceut Bioact Subst, Guangzhou 510006, Peoples R China

来源：

CHEMOSPHERE | 2023年 / 324卷

关键词：

Ricinus communis L; Root -associated fungi; Heavy metal resistance; Fungal community analysis; Fusarium; ENDOPHYTIC FUNGI; BRASSICA-NAPUS; HEAVY-METALS; GROWTH; BACTERIA; CD; PHYTOEXTRACTION; BIOREMEDIATION; MICROBIOMES; RHIZOSPHERE;

D O I：

10.1016/j.chemosphere.2023.138377

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Phytoremediation is a widely accepted bioremediation method of treating heavy metal contaminated soils. Nevertheless, the remediation efficiency in multi-metal contaminated soils is still unsatisfactory attributable to susceptibility to different metals. To isolate root-associated fungi for improving phytoremediation efficiency in multi-metal contaminated soils, the fungal flora in root endosphere, rhizoplane, rhizosphere of Ricinus communis L. in heavy metal contaminated soils and non-heavy metal contaminated soils were compared by ITS amplicon sequencing, and then the critical fungal strains were isolated and inoculated into host plants to improve phytoremediation efficiency in Cd, Pb, and Zn-contaminated soils. The fungal ITS amplicon sequencing analysis indicated that the fungal community in root endosphere was more susceptible to heavy metals than those in rhizoplane and rhizosphere soils and Fusarium dominated the endophytic fungal community of R. communis L. roots under heavy metal stress. Three endophytic strains (Fusarium sp. F2, Fusarium sp. F8, and Fusarium sp. F14) isolated from Ricinus communis L. roots showed high resistances to multi-metals and possessed growth-promoting characteristics. Biomass and metal extraction amount of R. communis L. with Fusarium sp. F2, Fusarium sp. F8, and Fusarium sp. F14 inoculation in Cd-, Pb- and Zn-contaminated soils were significantly higher than those without

引用

页数：10