Arid
DOI10.1007/s12640-020-00224-x
Biocrust-Produced Cyanotoxins Are Found Vertically in the Desert Soil Profile
Chatziefthimiou, Aspassia D.1; Banack, Sandra Anne2; Cox, Paul Alan2
通讯作者Banack, Sandra Anne
来源期刊NEUROTOXICITY RESEARCH
ISSN1029-8428
EISSN1476-3524
出版年2020
英文摘要

The fate and persistence of the neurotoxin beta-N-methylamino-L-alanine (BMAA) and its isomersN-(2aminoethyl)glycine (AEG) and 2,4-diaminobuytric acid (DAB) in soil profiles is poorly understood. In desert environments, these cyanotoxins are commonly found in both terrestrial and adjacent marine ecosystems; they accumulate in biocrusts and groundwater catchments, and have been previously shown to persist in soil as deep as 25 cm. To determine the depth that BMAA and its isomers can be found, samples were incrementally collected every 5 cm from bedrock to surface in triplicate soil cores in a biocrust field in the terrestrial desert of Qatar. Biocrust surface samples were also collected from each core priorly. Toxins were extracted from soil sub-samples, derivatized, and analyzed with UPLC-MS/MS. All toxins were detected in all soil cores at all depths. AEG and DAB were within a quantifiable concentration threshold; however, the low concentration of BMAA was considered below the threshold for quantification. This may have environmental health implications if these toxins are able to infiltrate and contaminate the bedrock aquifer, as well as the sand and gravel aquifers. Human and animal health may also be impacted through exposure to contaminated groundwater wells or through inhalation of aerosolized particles of soil, resuspended during construction or recreational activities.


英文关键词BMAA AEG DAB Neurotoxin Biocrusts Soil profile Desert Environmental management
类型Article ; Early Access
语种英语
国家Qatar ; USA
收录类别SCI-E
WOS记录号WOS:000541072000001
WOS关键词METHYLAMINO-L-ALANINE ; NEUROTOXIC AMINO-ACIDS ; 2,4-DIAMINOBUTYRIC ACID ; CYANOBACTERIAL TOXINS ; BMAA ; BIOSYNTHESIS ; MICROCYSTINS ; EVOLUTION ; CRUSTS ; ENVIRONMENT
WOS类目Neurosciences
WOS研究方向Neurosciences & Neurology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/319713
作者单位1.Weill Cornell Med Qatar, POB 24114, Doha, Qatar;
2.Inst Ethnomed, Brain Chem Labs, Box 3464, Jackson, WY 83001 USA
推荐引用方式
GB/T 7714
Chatziefthimiou, Aspassia D.,Banack, Sandra Anne,Cox, Paul Alan. Biocrust-Produced Cyanotoxins Are Found Vertically in the Desert Soil Profile[J],2020.
APA Chatziefthimiou, Aspassia D.,Banack, Sandra Anne,&Cox, Paul Alan.(2020).Biocrust-Produced Cyanotoxins Are Found Vertically in the Desert Soil Profile.NEUROTOXICITY RESEARCH.
MLA Chatziefthimiou, Aspassia D.,et al."Biocrust-Produced Cyanotoxins Are Found Vertically in the Desert Soil Profile".NEUROTOXICITY RESEARCH (2020).
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