Co-inoculation of phosphate-solubilizing bacteria and phosphate accumulating bacteria in phosphorus-enriched composting regulates phosphorus transformation by facilitating polyphosphate formation
文献类型: 外文期刊
第一作者: Zhan, Yabin
作者: Zhan, Yabin;Zhan, Yabin;Xu, Shaoqi;Hou, Zhuonan;Gao, Xin;Peng, Bihui;Zhao, Jinyue;Zhang, Ake;Guo, Yanbin;Ding, Guochun;Li, Ji;Wei, Yuquan;Zhan, Yabin;Xu, Shaoqi;Li, Ji;Wei, Yuquan;Su, Jing;Wang, Zhigang;Cheng, Meidi;Zhang, Ake
作者机构:
关键词: Composting; Microbial inoculation; Phosphorus cycle regulation; Metabolism pathway; Random forest
期刊名称:BIORESOURCE TECHNOLOGY ( 影响因子:11.4; 五年影响因子:10.6 )
ISSN: 0960-8524
年卷期: 2023 年 390 卷
页码:
收录情况: SCI
摘要: This study aimed to explore the impact of co-inoculating phosphate-solubilizing bacteria (PSB) and phosphate accumulating bacteria (PAB) on phosphorus forms transformation, microbial biomass phosphorus (MBP) and polyphosphate (Poly-P) accumulation, bacterial community composition in composting, using high throughput sequencing, PICRUSt 2, network analysis, structural equation model (SEM) and random forest (RF) analysis. The results demonstrated PSB-PAB co-inoculation (T1) reduced Olsen-P content (1.4 g) but had higher levels of MBP (74.2 mg/kg) and Poly-P (419 A.U.) compared to PSB-only (T0). The mantel test revealed a significantly positive correlation between bacterial diversity and both bioavailable P and MBP. Halocella was identified as a key genus related to Poly-P synthesis by network analysis. SEM and RF analysis showed that pH and bacterial community had the most influence on Poly-P synthesis, and PICRUSt 2 analysis revealed inoculation of PAB increased ppk gene abundance in T1. Thus, PSB-PAB co-inoculation provides a new idea for phosphorus management.
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