@ARTICLE{10.3389/fmars.2022.967767, AUTHOR={刘东西、麦东西、孙志茂、周翠词、廖燕武、王惠黄、程友shao、郝}，TITLE={红树林连续潮汐梯度分带的胞外聚合物质与土壤有机碳动力学研究}，JOURNAL={海洋前沿}，VOLUME={9}， YEAR={2022}， URL={//www.gosselinpr.com/articles/10.3389/fmars.2022.967767}， DOI={10.3389/fmars.2022.967767}， ISSN={2296-7745}，摘要={红树林在蓝碳储存方面的重要性已被广泛报道。然而，在红树林生态系统中，微生物胞外聚合物质(EPS)对碳库的潜在贡献仍然知之甚少。因此，本研究选择高桥红树林自然保护区为研究对象，研究微生物EPS与沉积物有机碳的关系。采用树脂提取法、傅立叶红外光谱法(FTIR)和16S高通量测序法测定了不同红树林群落中EPS和细菌类群的变化。EPS和EPS- c均随红树林向海向陆的分区而显著增加，与EPS亚组分(胶体EPS和结合EPS)和组分(细胞外蛋白和多糖)无关。EPS和EPS- c均与土壤有机碳呈显著正相关。本文进一步表明，表层沉积物中EPS-C占TOC的1.84~10.69%。通过FTIR鉴定出多个官能团(如O- h, N-H和C=O)，这些官能团可能为颗粒吸附和配位提供配体。与红树向海向陆分带中EPS的上升趋势一致，各功能基团的透过率均在向陆分离的根蕨科森林中表现出最高。 In addition, the present data also indicated an interesting positive linkage between EPS and the abundance of some specific bacterial taxa, such as Rhizobiales, Corynebacteriales, and Gaiellales. In summary, this study claims the importance of EPS in the carbon pool in mangrove ecosystems. The present study may provide a better understanding of the functions of mangroves in carbon stocks.} }