将细菌-真菌共生网络的变化与土壤碳动态相结合

IF 4.8 1区 环境科学与生态学 Q1 BIODIVERSITY CONSERVATION
Lijun Chen, Francisco Dini-Andreote, Hongqiang Liu, Huaxiang Wang, Alex Dumbrell, Zhengye Wang, Xingyu Chen, Fangfang Chen, Xiaolong Chen, Lichao Wu, Yuji Jiang
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引用次数: 0

摘要

细菌和真菌是不同生态系统中的核心微生物,它们的跨界相互作用被认为是微生物组结构和生态系统功能的关键决定因素。然而,在人工森林生态系统的背景下,细菌-真菌相互作用如何介导土壤有机碳(SOC)动态仍未得到充分研究。在这里,我们描述了连续四次种植桉树的土壤细菌和真菌群落,并将它们与邻近的常绿阔叶林进行了比较。为了确定连续种植桉树对土壤有机碳动态的影响,研究了碳矿化与五种碳降解酶活性的结合。结果表明,连续种植桉树显著改变了土壤细菌和真菌群落的多样性和结构,并增加了细菌-真菌的负相关关系。与常绿森林相比,桉树人工林的细菌多样性显著降低,真菌多样性呈相反趋势。由于土壤有机碳(SOC)、氨氮(nh4 +‐N)、硝态氮(no3−‐N)和速效磷(AP)的减少,随着桉树的连作,细菌-真菌负相关比例增加。结构方程模型表明,基于细菌-真菌负相关比率的潜在跨界竞争与总细菌和关键细菌的多样性呈显著负相关,从而增加C -降解酶活性和C矿化。合成和应用:我们的研究结果强调了负细菌-真菌关联在增强细菌多样性和C矿化之间的相关性方面的调节作用。这表明,在桉树人工林管理中促进短期连作可以减轻这种关联对有机碳分解的影响。综上所述,我们的研究促进了对桉树人工林中细菌-真菌负相关介导碳矿化的理解,使我们对人工林中有机碳循环动态有了新的认识。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Integrating variation in bacterial-fungal co-occurrence network with soil carbon dynamics

Integrating variation in bacterial-fungal co-occurrence network with soil carbon dynamics

Integrating variation in bacterial-fungal co-occurrence network with soil carbon dynamics

Integrating variation in bacterial-fungal co-occurrence network with soil carbon dynamics

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来源期刊
Journal of Applied Ecology
Journal of Applied Ecology 环境科学-生态学
CiteScore
9.80
自引率
3.50%
发文量
229
审稿时长
4.5 months
期刊介绍: Journal of Applied Ecology publishes novel, high-impact papers on the interface between ecological science and the management of biological resources.The editors encourage contributions that use applied ecological problems to test and develop basic theory, although there must be clear potential for impact on the management of the environment.
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