Organic mulching positively regulates the soil microbial communities and ecosystem functions in tea plantation

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Abstract

Background

Different mulches have variable effects on soil physicochemical characteristics, bacterial and fungal communities and ecosystem functions. However, the information about soil microbial diversity, community structure and ecosystem function in tea plantation under different mulching patterns was limited. In this study, we investigated bacterial and fungal communities of tea plantation soils under polyethylene film and peanut hull mulching using high-throughput 16S rRNA and ITS rDNA gene Illumina sequencing.

Results

The results showed that the dominant bacterial phyla were Proteobacteria , Actinobacteria, Acidobacteria and Chloroflexi, and the dominant fungal phyla were Ascomycota, Mortierellomycota and Basidiomycota in all samples, but different mulching patterns affected the distribution of microbial communities. At the phylum level, the relative abundance of Nitrospirae in peanut hull mulching soils (3.24%) was significantly higher than that in polyethylene film mulching soils (1.21%) in bacterial communities, and the relative abundances of Mortierellomycota and Basidiomycota in peanut hull mulching soils (33.72, 21.93%) was significantly higher than that in polyethylene film mulching soils (14.88, 6.53%) in fungal communities. Peanut hull mulching increased the diversity of fungal communities in 0–20 cm soils and the diversity of bacterial communities in 20–40 cm soils. At the microbial functional level, there was an enrichment of bacterial functional features, including amino acid transport and metabolism and energy production and conversion, and there was an enrichment of fungal functional features, including undefined saprotrophs, plant pathogens and soils aprotrophs.

Conclusions

Unique distributions of bacterial and fungal communities were observed in soils under organic mulching. Thus, we believe that the organic mulching has a positive regulatory effect on the soil bacterial and fungal communities and ecosystem functions, and so, is more suitable for tea plantation.

Related collections

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Author and article information

Contributors

Zhaotang Ding:

ORCID: http://orcid.org/0000-0002-6814-3038

dzttea@163.com

Journal

Journal ID (nlm-ta): BMC Microbiol

Journal ID (iso-abbrev): BMC Microbiol

Title: BMC Microbiology

Publisher: BioMed Central (London )

ISSN (Electronic): 1471-2180

Publication date (Electronic): 29 April 2020

Publication date PMC-release: 29 April 2020

Publication date Collection: 2020

Volume: 20

Electronic Location Identifier: 103

Affiliations

[1 ]GRID grid.412608.9, ISNI 0000 0000 9526 6338, Tea Research Institute, Qingdao Agricultural University, ; Qingdao, 266109 Shandong China

[2 ]Weihai agricultural and rural affairs service center, Weihai, 264200 Shandong China

Author information

Zhaotang Ding http://orcid.org/0000-0002-6814-3038

Article

Publisher ID: 1794

DOI: 10.1186/s12866-020-01794-8

PMC ID: 7191807

PubMed ID: 32349665

SO-VID: 78aeef74-dfb4-423e-be98-54125e7ee70c

License:

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver ( http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

History

Date received : 23 March 2020

Date accepted : 19 April 2020

Funding

Funded by: Significant Application Projects of Agriculture Technology Innovation in Shandong Province

Award ID: SD2019ZZ010