不同环境条件下生物群落的蓝藻毒素积累和生长模式

IF 3.6 Q2 TOXICOLOGY Toxicon: X Pub Date : 2024-06-06 DOI:10.1016/j.toxcx.2024.100199
Aspassia D. Chatziefthimiou , James S. Metcalf , William B. Glover , James T. Powell , Sandra A. Banack , Paul A. Cox , Moncef Ladjimi , Ali A. Sultan , Hiam Chemaitelly , Renee A. Richer
{"title":"不同环境条件下生物群落的蓝藻毒素积累和生长模式","authors":"Aspassia D. Chatziefthimiou ,&nbsp;James S. Metcalf ,&nbsp;William B. Glover ,&nbsp;James T. Powell ,&nbsp;Sandra A. Banack ,&nbsp;Paul A. Cox ,&nbsp;Moncef Ladjimi ,&nbsp;Ali A. Sultan ,&nbsp;Hiam Chemaitelly ,&nbsp;Renee A. Richer","doi":"10.1016/j.toxcx.2024.100199","DOIUrl":null,"url":null,"abstract":"<div><p>Biocrusts dominate the soil surface in deserts and are composed of diverse microbial communities that provide important ecosystem services. Cyanobacteria in biocrusts produce many secondary metabolites, including the neurotoxins BMAA, AEG, DAB, anatoxin-a(<em>S</em>) (guanitoxin), and the microcystin hepatotoxins, all known or suspected to cause disease or illness in humans and other animals. We examined cyanobacterial growth and prevalence of these toxins in biocrusts at millimeter-scales, under a desert-relevant illumination gradient. In contrast to previous work, we showed that hydration had an overall positive effect on growth and toxin accumulation, that nitrogen was not correlated with growth or toxin production, and that phosphorus enrichment negatively affected AEG and BMAA concentrations. Excess illumination positively correlated with AEG, and negatively correlated with all other toxins and growth. Basic pH negatively affected only the accumulation of BMAA. Anatoxin-a(<em>S</em>) (guanitoxin) was not correlated with any tested variables, while microcystins were not detected in any of the samples. Concerning toxin pools, AEG and BMAA were good predictors of the presence of one another. In a newly conceptualized scheme, we integrate aspects of biocrust growth and toxin pool accumulations with arid-relevant desertification drivers.</p></div>","PeriodicalId":37124,"journal":{"name":"Toxicon: X","volume":null,"pages":null},"PeriodicalIF":3.6000,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S259017102400016X/pdfft?md5=f0941ac9f6ce1df1faba6aa715d3d57a&pid=1-s2.0-S259017102400016X-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Cyanotoxin accumulation and growth patterns of biocrust communities under variable environmental conditions\",\"authors\":\"Aspassia D. Chatziefthimiou ,&nbsp;James S. Metcalf ,&nbsp;William B. Glover ,&nbsp;James T. Powell ,&nbsp;Sandra A. Banack ,&nbsp;Paul A. Cox ,&nbsp;Moncef Ladjimi ,&nbsp;Ali A. Sultan ,&nbsp;Hiam Chemaitelly ,&nbsp;Renee A. Richer\",\"doi\":\"10.1016/j.toxcx.2024.100199\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Biocrusts dominate the soil surface in deserts and are composed of diverse microbial communities that provide important ecosystem services. Cyanobacteria in biocrusts produce many secondary metabolites, including the neurotoxins BMAA, AEG, DAB, anatoxin-a(<em>S</em>) (guanitoxin), and the microcystin hepatotoxins, all known or suspected to cause disease or illness in humans and other animals. We examined cyanobacterial growth and prevalence of these toxins in biocrusts at millimeter-scales, under a desert-relevant illumination gradient. In contrast to previous work, we showed that hydration had an overall positive effect on growth and toxin accumulation, that nitrogen was not correlated with growth or toxin production, and that phosphorus enrichment negatively affected AEG and BMAA concentrations. Excess illumination positively correlated with AEG, and negatively correlated with all other toxins and growth. Basic pH negatively affected only the accumulation of BMAA. Anatoxin-a(<em>S</em>) (guanitoxin) was not correlated with any tested variables, while microcystins were not detected in any of the samples. Concerning toxin pools, AEG and BMAA were good predictors of the presence of one another. In a newly conceptualized scheme, we integrate aspects of biocrust growth and toxin pool accumulations with arid-relevant desertification drivers.</p></div>\",\"PeriodicalId\":37124,\"journal\":{\"name\":\"Toxicon: X\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2024-06-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S259017102400016X/pdfft?md5=f0941ac9f6ce1df1faba6aa715d3d57a&pid=1-s2.0-S259017102400016X-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Toxicon: X\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S259017102400016X\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"TOXICOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Toxicon: X","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S259017102400016X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"TOXICOLOGY","Score":null,"Total":0}
引用次数: 0

摘要

生物簇在沙漠的土壤表面占主导地位,由多种微生物群落组成,提供重要的生态系统服务。生物簇中的蓝藻会产生许多次级代谢产物,包括神经毒素 BMAA、AEG、DAB、anatoxin-a(S)(胍基毒素)和微囊藻毒素肝毒素,所有这些毒素都已知或怀疑会导致人类和其他动物患病。我们在沙漠相关的光照梯度下,以毫米尺度研究了蓝藻的生长情况以及这些毒素在生物簇中的流行情况。与之前的研究不同,我们发现水合作用对蓝藻的生长和毒素积累有全面的积极影响,氮与蓝藻的生长或毒素产生无关,而磷的富集对蓝藻脑苷脂(AEG)和蓝藻生物氨(BMAA)的浓度有负面影响。过度光照与 AEG 呈正相关,而与所有其他毒素和生长呈负相关。碱性 pH 只对 BMAA 的积累产生负面影响。Anatoxin-a(S) (鸟苷酸毒素)与任何测试变量均无相关性,而在任何样本中均未检测到微囊藻毒素。关于毒素库,AEG 和 BMAA 可以很好地预测毒素库中是否存在毒素。在一个新的概念化方案中,我们将生物簇生长和毒素池积累的各个方面与干旱相关的荒漠化驱动因素结合起来。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

摘要图片

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Cyanotoxin accumulation and growth patterns of biocrust communities under variable environmental conditions

Biocrusts dominate the soil surface in deserts and are composed of diverse microbial communities that provide important ecosystem services. Cyanobacteria in biocrusts produce many secondary metabolites, including the neurotoxins BMAA, AEG, DAB, anatoxin-a(S) (guanitoxin), and the microcystin hepatotoxins, all known or suspected to cause disease or illness in humans and other animals. We examined cyanobacterial growth and prevalence of these toxins in biocrusts at millimeter-scales, under a desert-relevant illumination gradient. In contrast to previous work, we showed that hydration had an overall positive effect on growth and toxin accumulation, that nitrogen was not correlated with growth or toxin production, and that phosphorus enrichment negatively affected AEG and BMAA concentrations. Excess illumination positively correlated with AEG, and negatively correlated with all other toxins and growth. Basic pH negatively affected only the accumulation of BMAA. Anatoxin-a(S) (guanitoxin) was not correlated with any tested variables, while microcystins were not detected in any of the samples. Concerning toxin pools, AEG and BMAA were good predictors of the presence of one another. In a newly conceptualized scheme, we integrate aspects of biocrust growth and toxin pool accumulations with arid-relevant desertification drivers.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Toxicon: X
Toxicon: X Pharmacology, Toxicology and Pharmaceutics-Toxicology
CiteScore
6.50
自引率
0.00%
发文量
33
审稿时长
14 weeks
期刊最新文献
Stress levels, hematological condition, and productivity of plasma-producing horses used for snake antivenom manufacture: A comparison of two industrial bleeding methods Diagnosis of human envenoming by terrestrial venomous animals: Routine, advances, and perspectives Supplementation of polyclonal antibodies, developed against epitope-string toxin-specific peptide immunogens, to commercial polyvalent antivenom, shows improved neutralization of Indian Big Four and Naja kaouthia snake venoms Bioprospection of rattlesnake venom peptide fractions with anti-adipose and anti-insulin resistance activity in vitro A probabilistic hazard assessment for cyanobacterial toxins accounting for regional geography and water body trophic status
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1