Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/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
![]() |
ISSN | 1029-8428 |
EISSN | 1476-3524 |
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). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。