酸沉降和纳米ZnO对水生真菌分解功能的耦合效应

doi:10.13292/j.1000-4890.202509.034

生态学杂志 ›› 2025, Vol. 44 ›› Issue (9): 3019-3025.doi: 10.13292/j.1000-4890.202509.034

酸沉降和纳米ZnO对水生真菌分解功能的耦合效应

原帅康¹,陶田颍¹,郭锐利²,王惜琳¹,张玉燕¹,徐媛倩^1,3,曹霞^1,3,张宏忠^1,3,杜京京^1,3*

（¹郑州轻工业大学材料与化学工程学院，郑州 450001； ²濮阳市生态环境监测和安全中心，河南濮阳 457000； ³环境污染治理与生态修复河南省协同创新中心，郑州 450001）

出版日期:2025-09-10 发布日期:2025-09-08

Coupling effect of acid deposition and nano-ZnO on decomposition function of aquatic fungi.

YUAN Shuaikang¹, TAO Tianying¹, GUO Ruili², WANG Xilin¹, ZHANG Yuyan¹, XU Yuanqian^1,3, CAO Xia^1,3, ZHANG Hongzhong^1,3, DU Jingjing^1,3*

(¹School of Materials and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China; ²Eco-environmental Monitoring and Safety Center of Puyang City, Puyang 457000, Henan, China; ³Henan Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450001, China).

Online:2025-09-10 Published:2025-09-08

摘要/Abstract

摘要： 为了探索酸沉降和纳米氧化物对凋落物分解功能微生物的影响，本实验以2株优势水生真菌Geotrichum candidum和Mucor circinelloides为受试对象，评估了酸沉降和纳米ZnO（0.1～1.0 mg·L^-1）单一影响因素及二者耦合作用对水生真菌生长和分解功能的影响。结果表明：相较于单一因素来说，二者耦合作用显著促进了G. candidum的生长，但却抑制其降解酶活性；显著抑制了M. circinelloides的生长和降解酶活性。因此，G. candidum在生长量方面对耦合效应具有一定的耐受性；两种真菌相比，M. circinelloides更加敏感，主要表现为在生长过程中吸水能力、物质合成以及胞外降解酶活性的受阻，从而有可能影响其在凋落物分解过程中的作用。本研究结果有助于进一步了解酸沉降与纳米ZnO耦合效应对水生真菌分解功能的影响。

关键词: 酸沉降, 纳米ZnO, 耦合效应, 水生真菌, 胞外降解酶

Abstract: To explore the effect of acid deposition and nano-ZnO on functional microorganisms in leaf litter decomposition, we assessed effects of the interaction of those two factors on the growth and function of two dominant aquatic fungi, Geotrichum candidum and Mucor circinelloides. Results showed that the coupling effect of those two factors significantly promoted the growth of G. candidum, but inhibited its enzyme activities compared to the effect of each single factor. For M. circinelloides, the coupling effect showed inhibitory role on fungal growth and enzyme activities. Therefore, G. candidum was more tolerant to the coupling effect of acid deposition and nano-ZnO, whereas M. circinelloides was more sensitive with decreases in water absorption capacity, material synthesis, and extracellular enzyme activities. The inhibitory effect would influence the role of M. circinelloides in leaf litter decomposition. The results improve our understanding of the coupling effect of acid deposition and nano-ZnO on the decomposition function of aquatic fungi.

Key words: acid deposition, nano-ZnO, coupling effect, aquatic fungi, extracellular degrading enzyme

原帅康, 陶田颍, 郭锐利, 王惜琳, 张玉燕, 徐媛倩, 曹霞, 张宏忠, 杜京京. 酸沉降和纳米ZnO对水生真菌分解功能的耦合效应[J]. 生态学杂志, 2025, 44(9): 3019-3025.

YUAN Shuaikang, TAO Tianying, GUO Ruili, WANG Xilin, ZHANG Yuyan, XU Yuanqian, CAO Xia, ZHANG Hongzhong, DU Jingjing. Coupling effect of acid deposition and nano-ZnO on decomposition function of aquatic fungi.[J]. Chinese Journal of Ecology, 2025, 44(9): 3019-3025.

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酸沉降和纳米ZnO对水生真菌分解功能的耦合效应

Coupling effect of acid deposition and nano-ZnO on decomposition function of aquatic fungi.

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