气候变化领域集成服务门户(CCPortal): Discrepant soil microbial community and C cycling function responses to conventional and biodegradable microplastics

CCPortal

DOI	10.1016/j.jhazmat.2024.134176
	Discrepant soil microbial community and C cycling function responses to conventional and biodegradable microplastics
	Yu, Hui; Liu, Xin; Qiu, Xiaoguo; Sun, Tao; Cao, Jianfeng; Lv, Ming; Sui, Zhiyuan; Wang, Zhizheng; Jiao, Shuying; Xu, Yuxin; Wang, Fenghua
发表日期	2024
ISSN	0304-3894
EISSN	1873-3336
起始页码	470
卷号	470
英文摘要	Biodegradable microplastics (MPs) are promising alternatives to conventional MPs and are of high global concern. However, their discrepant effects on soil microorganisms and functions are poorly understood. In this study, polyethylene (PE) and polylactic acid (PLA) MPs were selected to investigate the different effects on soil microbiome and C-cycling genes using high-throughput sequencing and real -time quantitative PCR, as well as the morphology and functional group changes of MPs, using scanning electron microscopy and Fourier transform infrared spectroscopy, and the driving factors were identified. The results showed that distinct taxa with potential for MP degradation and nitrogen cycling were enriched in soils with PLA and PE, respectively. PLA, smaller size (150-180 mu m), and 5% (w/w) of MPs enhanced the network complexity compared with PE, larger size (250-300 mu m), and 1% (w/w) of MPs, respectively. PLA increased beta-glucosidase by up to 2.53 times, while PE (150-180 mu m) reduced by 38.26-44.01% and PE (250-300 mu m) increased by 19.00-22.51% at 30 days. Amylase was increased by up to 5.83 times by PLA (150-180 mu m) but reduced by 40.26-62.96% by PLA (250-300 mu m) and 16.11-43.92% by PE. The genes cbbL , cbhI , abfA , and Lac were enhanced by 37.16%- 1.99 times, 46.35%- 26.46 times, 8.41%- 69.04%, and 90.81%- 5.85 times by PLA except for PLA1B/5B at 30 days. These effects were associated with soil pH, NO 3 - -N, and MP biodegradability. These findings systematically provide an understanding of the impact of biodegradable MPs on the potential for global climate change.
英文关键词	Biodegradable microplastics Conventional; microplastics Soil enzyme activities; Carbon cycling function genes; Microbial community
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:001222666800001
来源期刊	JOURNAL OF HAZARDOUS MATERIALS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/301914
作者单位	Shandong Agricultural University
推荐引用方式 GB/T 7714	Yu, Hui,Liu, Xin,Qiu, Xiaoguo,et al. Discrepant soil microbial community and C cycling function responses to conventional and biodegradable microplastics[J],2024,470.
APA	Yu, Hui.,Liu, Xin.,Qiu, Xiaoguo.,Sun, Tao.,Cao, Jianfeng.,...&Wang, Fenghua.(2024).Discrepant soil microbial community and C cycling function responses to conventional and biodegradable microplastics.JOURNAL OF HAZARDOUS MATERIALS,470.
MLA	Yu, Hui,et al."Discrepant soil microbial community and C cycling function responses to conventional and biodegradable microplastics".JOURNAL OF HAZARDOUS MATERIALS 470(2024).