来自瑞典的菌和森林垃圾中的多索菲林A甲基乙烯 (DAME) 和其他化二甲氧化
Terry F Bidleman1, Lars Ericson2, Per Liljelind1
1Department of Chemistry, Umeå University, Linnaeus väg 6, SE-901 87, Umeå, Sweden.
Chemosphere
|November 19, 2023
概括
在陆地生态系统中,真菌是1,2,4,5-四-3,6-DMB (DAME) 的重要来源. 这项研究在62%的分析森林标本中发现了DAME,这表明真菌的生产和生物积累的潜力.
科学领域:
- 环境化学环境化学
- 菌类学 菌类学是指菌类学.
- 生物地质化学生物地质化学
背景情况:
- 化二氧化 (DMBs) 是一种环境污染物.
- 菌类在有机物分解中发挥作用,可以产生二次代谢产物.
- 了解DMB的来源对于评估它们的环境命运和影响至关重要.
研究的目的:
- 调查来自瑞典森林的真菌和基板样本中的DMBs,特别是DAME的存在和分布.
- 为了确定真菌是否是陆地环境中DAME的来源.
- 为了确定潜在的真菌前体和相关代谢物.
主要方法:
- 收集来自瑞典北部和南部森林的真菌果实体,腐烂木材,垃圾和湿土.
- 开发一种使用乙酸乙烯提取的选方法.
- 通过毛细管气体染色学-质谱与质量选择检测 (GC-MSD) 进行分析.
主要成果:
- 在47个分析样本中,在62%的样本中检测到DAME,通常是最丰富的化合物.
- DAME的度范围从<0.0017到3.81毫克每公斤-1个月,平均值为0.21±0.63毫克每公斤-1个月.
- 有证据表明,五种真菌物种可能会产生DAME de novo,并且检测到诸如多索菲林A之类的前体.
结论:
- 菌被证实是陆地生态系统和流水中的DAME的重要来源.
- 该研究表明,存在其他未确定的化真菌代谢产物.
- 需要进一步的研究,以了解DAME的途径和生物积累潜力作为有机的标记物.
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