Co-inoculation of phosphate-solubilizing bacteria and phosphate accumulating bacteria in phosphorus-enriched composting regulates phosphorus transformation by facilitating polyphosphate formation

被引:8
作者
Zhan, Yabin [1 ,2 ,3 ]
Xu, Shaoqi [2 ,3 ]
Hou, Zhuonan [2 ]
Gao, Xin [2 ]
Su, Jing [4 ]
Peng, Bihui [2 ]
Zhao, Jinyue [2 ]
Wang, Zhigang [5 ]
Cheng, Meidi [6 ]
Zhang, Ake [2 ,7 ]
Guo, Yanbin [2 ]
Ding, Guochun [2 ]
Li, Ji [2 ,3 ]
Wei, Yuquan [2 ,3 ]
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
基金
中国国家自然科学基金;
关键词
Composting; Microbial inoculation; Phosphorus cycle regulation; Metabolism pathway; Random forest; MICROBIAL BIOMASS PHOSPHORUS; FRACTIONS; GROWTH; COMBINATION; COMMUNITY;
D O I
10.1016/j.biortech.2023.129870
中图分类号
S2 [农业工程];
学科分类号
0828 ;
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.
引用
收藏
页数:8
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