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DOI	10.1016/j.ecoenv.2022.113310
	Mechanistic study for mutual interactions of Pb2+ and Trichoderma viride
	Luo, Dongxia; Qiang, Shirong; Geng, Rongyue; Shi, Leiping; Song, Jiayu; Fan, Qiaohui
通讯作者	Luo, DX (通讯作者)，Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China. ; Qiang, SR (通讯作者)，Lanzhou Univ, Sch Basic Med Sci, Inst Physiol, Key Lab Preclin Study New Drugs Gansu Prov, Lanzhou 730000, Peoples R China.
发表日期	2022
ISSN	0147-6513
EISSN	1090-2414
卷号	233
英文摘要	Fungi play significant roles in the geochemical processes of heavy metals in the environment. However, the interaction between heavy metals and fungi, especially at the cellular level, is quite complicated and remains unknown. This study explored the mutual interaction mechanism between Pb2+ and Trichoderma viride by combining batch experiments, spectroscopy, and in vitro approaches. Batch experiments revealed that Pb2+& nbsp;had toxic effect on T. viride, originally causing the biomass of T. viride decreased from 1.3 g in the control group to 0 g in the presence of 200 mg/L Pb2+. The difference in biomass further led to varied pH, even decreasing from 5.7 at the outset to 3.4 due to the acid-production properties of T. viride. Moreover, structural deformation and damage of T. viride mycelium appeared when exposed to Pb2+, and were more evident at a higher dose of Pb2+& nbsp;exposure. The growth curve exhibited that T. viride gradually adapted to Pb2+& nbsp;exposure, which related to Pb2+& nbsp;exposure concentration. Further, intracellular and extracellular secretions of T. viride changed with varying exposure concentrations of Pb2+, indicating that T. viride adapted differently to different concentrations of Pb2+, and MT participated in the detoxification of T. viride. SEM-EDX showed that T. viride could bio-adsorb and bioaccumulate more Pb2+& nbsp;when exposed to more Pb2+, which was closely related to the content of P. And carbonyl, phosphate, and amino groups of T. viride participated in the Pb2+& nbsp;biosorption onto T. viride, as evidenced by FT-IR and XPS. Meanwhile, the biomineralization and reduction of Pb2+& nbsp;by T. viride were observed by XRD and XPS, which might be a possible factor for Pb2+& nbsp;biosorption and bioaccumulation. CLSM showed that the bio-adsorbed and bioaccumulated Pb2+& nbsp;were mainly distributed in the membrane of T. viride mycelium.
关键词	LEAD BIOSORPTION FUNGI BIOACCUMULATION TRANSFORMATION PB(II)IMMOBILIZATION PYROMORPHITE CHROMIUM
英文关键词	Pb2+; Trichoderma viride; Toxic effect; Biosorption; Biomineralization
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
WOS类目	Environmental Sciences ; Toxicology
WOS记录号	WOS:000779428900009
来源期刊	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254627
作者单位	[Luo, Dongxia] Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China; [Qiang, Shirong] Lanzhou Univ, Sch Basic Med Sci, Inst Physiol, Key Lab Preclin Study New Drugs Gansu Prov, Lanzhou 730000, Peoples R China; [Geng, Rongyue; Shi, Leiping; Song, Jiayu; Fan, Qiaohui] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China; [Luo, Dongxia] Gansu Anal & Res Ctr, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Luo, Dongxia,Qiang, Shirong,Geng, Rongyue,et al. Mechanistic study for mutual interactions of Pb2+ and Trichoderma viride [J]. 中国科学院西北生态环境资源研究院,2022,233.
APA	Luo, Dongxia,Qiang, Shirong,Geng, Rongyue,Shi, Leiping,Song, Jiayu,&Fan, Qiaohui.(2022). Mechanistic study for mutual interactions of Pb2+ and Trichoderma viride .ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,233.
MLA	Luo, Dongxia,et al." Mechanistic study for mutual interactions of Pb2+ and Trichoderma viride ".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 233(2022).