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
作者： Zhan, Yabin 1 ; Xu, Shaoqi 2 ; Hou, Zhuonan 2 ; Gao, Xin 2 ; Su, Jing 4 ; Peng, Bihui 2 ; Zhao, Jinyue 2 ; Wang, Zhigang 5 ; Cheng, Meidi 6 ; Zhang, Ake 2 ; Guo, Yanbin 2 ; Ding, Guochun 2 ; Li, Ji 2 ; Wei, Yuquan 2 ;
作者机构： 1.Hubei Acad Agr Sci, Inst Plant Protect & Soil Fertilizer, Key Lab Fertilizat Agr Wastes, Minist Agr & Rural Affairs, Wuhan 430064, Hubei, Peoples R China
2.China Agr Univ, Coll Resources & Environm Sci, Beijing Key Lab Biodivers & Organ Farming, Beijing 100193, Peoples R China
3.China Agr Univ, Organ Recycling Inst Suzhou, Suzhou 215128, Peoples R China
4.Minist Ecol & Environm, Nanjing Inst Environm Sci, Nanjing 210042, Peoples R China
5.DBN Agr Sci & Technol Grp CO Ltd, DBN Pig Acad, Beijing 102629, Peoples R China
6.Yantai Univ, Coll Chem & Chem Engn, Yantai 264005, Peoples R China
7.Fuyang Acad Agr Sci, Fuyang 236065, Peoples R China
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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