Succession of the functional microbial communities and the metabolic functions in maize straw composting process.

Abstract:

:Illumina MiSeq sequencing and phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt) were applied to study the dynamic changes and effects of microbial community structures as well as the metabolic function of bacterial community in maize straw composting process. Results showed that humic acid contents in loosely combined humus (HA1) and stably combined humus (HA2) increased after composting and Staphylococcus, Cellulosimicrobium and Ochrobactrum possibly participated in the transformation of the process. The bacterial communities differed in different stages of the composting. Firmicutes, Proteobacteria, Bacteroidetes and Actinobacteria were reported the dominant phyla throughout the process and the relative abundance of the dominant phyla varied significantly (p < 0.05) over time. Moreover, the total phosphorus (TP) had the greatest influence on the microbial community structure among C/N ratio, available phosphorus (AP) and humic substances. Metabolism, cellular processes and environmental information processing might be the primary functions of microbial community during the composting.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Wei H,Wang L,Hassan M,Xie B

doi

10.1016/j.biortech.2018.02.050

subject

Has Abstract

pub_date

2018-05-01 00:00:00

pages

333-341

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(18)30234-7

journal_volume

256

pub_type

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