Selenium uptake, tolerance and reduction in Flammulina velutipes supplied with selenite

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Selenium uptake, tolerance and reduction in Flammulina velutipes supplied with selenite
	Wang, Jipeng1,2 ; Wang, Bo 3; Zhang, Dan1 ; Wu, Yanhong1
刊名	PEERJ
	2016-05-11
卷号	4 页码:DOI: 10.7717/peerj.1993
关键词	Cultivated mushrooms Selenite uptake Selenite toxicity Biological nanoparticle synthesis Flammulina velutipes
ISSN号	2167-8359
通讯作者	Wu, Yanhong
英文摘要	Recently, selenium (Se) enriched mushrooms have been exploited as dietary Se supplements, but our knowledge of the metabolic process during the Se enrichment process is far from complete. In this study, the uptake, tolerance and reduction of selenite in a widely cultivated mushroom, Flammulina velutipes, was investigated. The results showed that pH variation (from 5.5-7.5), metabolic inhibitor (0.1 mM 2,4-DNP) and P or S starvation led to 11-26% decreases in the selenite uptake rate of F. velutipes. This indicates that a minor portion of the selenite uptake was metabolism dependent, whereas a carrier-facilitated passive transport may be crucial. Growth inhibition of F. velutipes initiated at 0.1 mM selenite (11% decrease in the growth rate) and complete growth inhibition occurred at 3 mM selenite. A selenite concentration of 0.03-0.1 mM was recommended to maintain the balance between mycelium production and Se enrichment. F. velutipes was capable of reducing selenite to elemental Se [Se(0)] including Se(0) nanoparticles, possibly as a detoxification mechanism. This process depended on both selenite concentration and metabolism activity. Overall, the data obtained provided some basic information for the cultivation of the selenized F. velutipes, and highlighted the opportunity of using mushrooms for the production of Se(0) nanoparticles.
WOS标题词	Science & Technology
类目[WOS]	Multidisciplinary Sciences
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	LENTINULA-EDODES BERK. ; SACCHAROMYCES-CEREVISIAE ; ELEMENTAL SELENIUM ; CHLAMYDOMONAS-REINHARDTII ; INORGANIC SELENIUM ; EMILIANIA-HUXLEYI ; ENRICHED MYCELIUM ; ORGANIC SELENIUM ; SPECIATION ; SELENATE
收录类别	SCI
语种	英语
WOS记录号	WOS:000376574800004
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/17391]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu, Sichuan, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Sichuan Acad Agr Sci, Soil & Fertilizer Res Inst, Chengdu, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jipeng,Wang, Bo,Zhang, Dan,et al. Selenium uptake, tolerance and reduction in Flammulina velutipes supplied with selenite[J]. PEERJ,2016,4:DOI: 10.7717/peerj.1993.
APA	Wang, Jipeng,Wang, Bo,Zhang, Dan,&Wu, Yanhong.(2016).Selenium uptake, tolerance and reduction in Flammulina velutipes supplied with selenite.PEERJ,4,DOI: 10.7717/peerj.1993.
MLA	Wang, Jipeng,et al."Selenium uptake, tolerance and reduction in Flammulina velutipes supplied with selenite".PEERJ 4(2016):DOI: 10.7717/peerj.1993.