在马尾藻凋落物原位分解过程中，砷的释放是一个隐患

IF 1.9 4区生物学 Q2 MARINE & FRESHWATER BIOLOGY

Aquatic Botany Pub Date : 2025-03-25 DOI:10.1016/j.aquabot.2025.103884

Bruno Chávez-Vergara , Elizabeth Solleiro-Rebolledo , Rafael López-Martínez , Ofelia Beltrán-Paz , Águeda E. Ceniceros-Gómez , Germán Yañez-Mendoza

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引用次数: 0

摘要

低分子有机化合物和营养物质在植物组织的自然分解过程中释放出来。然而，如果生物体积累潜在有毒元素（PTE），这些元素可以释放到环境中；这是马尾藻凋落物分解过程中的潜在风险。本专题只在移地条件下进行了研究。我们量化了新鲜和原位自然分解马尾藻凋落物中PTE的浓度。结果表明，在不同的分解阶段，只有砷在新鲜生物量和凋落物中表现出较高的浓度，初期超过65 %，但在每个分解阶段的总砷含量下降到20 %以下。这些发现对自然腐烂过程中渗滤液中砷的释放和部分分解马尾藻凋落物中残留的砷提供了有价值的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The release of arsenic is a hidden risk during the in-situ decomposition of landed sargassum litter

Low molecular organic compounds and nutrients are released during the natural breakdown of plant tissues. However, if the organisms accumulate potentially toxic elements (PTE), these can be released into the environment; this is a latent risk during the decomposition of sargassum litter. This topic has been studied only in ex-situ conditions. We quantified the PTE concentration in fresh and in situ naturally decomposed sargassum litter. The results indicated that only arsenic demonstrates a high concentration in fresh biomass and litter across different stages of decomposition, exceeding 65 % initially, but decreasing to less than 20 % in the later stage concerning total As in each decomposition phase. These findings offer valuable insights into the release of As in leachates during natural decay and the residual As in partially decomposed sargassum litter.

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来源期刊

Aquatic Botany 生物-海洋与淡水生物学

CiteScore

3.80

自引率

5.60%

发文量

审稿时长

6 months

期刊介绍： Aquatic Botany offers a platform for papers relevant to a broad international readership on fundamental and applied aspects of marine and freshwater macroscopic plants in a context of ecology or environmental biology. This includes molecular, biochemical and physiological aspects of macroscopic aquatic plants as well as the classification, structure, function, dynamics and ecological interactions in plant-dominated aquatic communities and ecosystems. It is an outlet for papers dealing with research on the consequences of disturbance and stressors (e.g. environmental fluctuations and climate change, pollution, grazing and pathogens), use and management of aquatic plants (plant production and decomposition, commercial harvest, plant control) and the conservation of aquatic plant communities (breeding, transplantation and restoration). Specialized publications on certain rare taxa or papers on aquatic macroscopic plants from under-represented regions in the world can also find their place, subject to editor evaluation. Studies on fungi or microalgae will remain outside the scope of Aquatic Botany.