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在红树林生态系统中对潜在有毒元素污染的评估和缓解:关于植物修复和微生物视角的见解

Gobinda Dey¹, Jyoti Prakash Maity², Pritam Banerjee³

¹Department of Agricultural Chemistry, National Taiwan University, Taipei 106319, Taiwan; Department of Biomedical Sciences, Graduate Institute of Molecular Biology, National Chung Cheng University, 168 University Road, Chiayi County, Ming-Shung, 62102, Taiwan; Doctoral Program in Science, Technology, Environment, and Mathematics, Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Rd., Chiayi County, Min-Hsiung, 62102, Taiwan.

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概括

台湾台湾台湾台湾

科学领域:

环境科学环境科学
海洋生物学海洋生物学
生态毒理学生态毒理学

背景情况:

红树林是重要的沿海生态系统,面临潜在有毒元素 (PTEs) 污染的威胁.
人类活动在这些敏感环境中对PTE污染作出了重大贡献.
了解PTE的分布和影响对于红树林的保护至关重要.

研究的目的:

分析在台湾的Xinfeng红树林中PTE的分布和污染水平.
评估红树林物种对PTE的植物修复潜力.
研究根球微生物群落在受PTE污染的红树林生态系统中的作用.

主要方法:

在河流,河口和红树林沉积物的实地采样.
对物理化学参数和PTE度的分析.
地化学指数和污染评估.
对Kandelia obovata和Avicennia marina的植物修复潜力的评估.
微生物群落的元基因组学分析.

主要成果:

在河流,河口和红树林沉积物中发现了中度的PTE污染.
沉积物中 (Bi) 和 (Pb) 的高污染; (Zn), (Sr),铜 (Cu) 和 (Cd) 的中等污染.
坎德利亚奥博瓦塔和阿维森尼亚海显示出Bi,Cd, (Mn),Sr和 (Co) 的植物补救潜力.
多种微生物群落拥有固定,溶解,IAA合成和PTE耐药性的基因.

结论:

辛红树林表现出大量的PTE污染,造成生态风险.
红树林物种Kandelia obovata和Avicennia marina显示了PTE植物修复的潜力.
树叶球微生物在红树林生态系统中的营养循环和PTE耐受性中发挥着作用.
有针对性的保护战略对于保护这些受威胁的沿海息地至关重要.

关键词:

生态风险评估生态风险评估红树林生态系统红树林生态系统植物疗法 (Phytoremediation) 是一种植物疗法.促进植物生长的微生物促进植物生长.可能有毒的元素.树球微生物群体的社区.

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