Isolation and characterization of cyromazine-degrading bacteria from soil and its application in bioconversion by black soldier fly

IF 6.7 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation Pub Date : 2025-04-22 DOI:10.1016/j.eti.2025.104221

Haixu Zhang , Sen Yang , Xilu Zhang , Yaxin Pei , Mengxiao Chen , Hongge Chen , Jiran Zhang

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引用次数: 0

Abstract

Cyromazine, a widely used insect growth regulator, accumulates in livestock manure and poses risks to beneficial insects such as black soldier fly larvae (BSFL) during waste bioconversion. This study isolated two bacterial strains capable of degrading cyromazine, Bacillus subtilis CYR1 (CYR1) and Bacillus velezensis CYR2 (CYR2), from contaminated chicken manure. Both strains demonstrated significant degradation efficiency via hydrolysis of cyromazine to cyanuric acid, a less toxic metabolite. However, in chicken manure systems, degradation efficiency reached a plateau at approximately 20 %, likely due to preferential utilization of alternative nitrogen sources and inherent metabolic constraints. These findings highlight the potential of microbial remediation to mitigate cyromazine contamination while underscoring the need for strain optimization and comprehensive ecotoxicological assessments.

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土壤中氯丙嗪降解菌的分离鉴定及其在黑虻生物转化中的应用

氰胺是一种广泛使用的昆虫生长调节剂，在畜禽粪便中积累，在废物生物转化过程中对黑兵蝇幼虫等有益昆虫构成威胁。本研究从污染的鸡粪中分离到两株能降解胞嘧啶的细菌：枯草芽孢杆菌CYR1 （CYR1）和velezensis芽孢杆菌CYR2 （CYR2）。这两种菌株都表现出了显著的降解效率，通过水解氰嗪为氰尿酸，一种毒性较小的代谢物。然而，在鸡粪系统中，降解效率达到约20% %的平台，可能是由于优先利用替代氮源和固有的代谢限制。这些发现强调了微生物修复在减轻氨嘧啶污染方面的潜力，同时也强调了菌株优化和综合生态毒理学评估的必要性。

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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来源期刊

Environmental Technology & Innovation Environmental Science-General Environmental Science

CiteScore

14.00

自引率

4.20%

发文量

435

审稿时长

74 days

期刊介绍： Environmental Technology & Innovation adopts a challenge-oriented approach to solutions by integrating natural sciences to promote a sustainable future. The journal aims to foster the creation and development of innovative products, technologies, and ideas that enhance the environment, with impacts across soil, air, water, and food in rural and urban areas. As a platform for disseminating scientific evidence for environmental protection and sustainable development, the journal emphasizes fundamental science, methodologies, tools, techniques, and policy considerations. It emphasizes the importance of science and technology in environmental benefits, including smarter, cleaner technologies for environmental protection, more efficient resource processing methods, and the evidence supporting their effectiveness.