2019 ; Vol.29-3: 441~453
|Author||Hanlin Zhang, Xianqing Zheng, Naling Bai, Shuangxi Li, Juanqin Zhang, Weiguang Lv|
|Place of duty||Eco-environmental Protection Institute, Shanghai Academy of Agricultural Science, China,Agricultural Environment and Farmland Conservation Experiment Station of Ministry Agriculture, China ,Shanghai Key Laboratory of Horticultural Technology, China|
|Title||Responses of Soil Bacterial and Fungal Communities to Organic and Conventional Farming Systems in East China|
J. Microbiol. Biotechnol.2019 ;
|Abstract||Organic farming is considered an effective form of sustainable agricultural management.
However, understanding of soil microbial diversity and composition under long-term organic
and conventional farming is still limited and controversial. In this study, the Illumina MiSeq
platform was applied to investigate the responses of soil bacterial and fungal diversity and
compositions to organic farming (OF) and improved conventional farming (CF, applied straw
retention) in the rice-wheat rotation system. The results highlighted that the alpha diversity of
microbial communities did not differ significantly, except for higher bacterial diversity under
OF. However, there were significant differences in the compositions of the soil bacterial and
fungal communities between organic and conventional farming. Under our experimental
conditions, through the ecological functional analysis of significant different or unique
bacterial and fungal taxonomic members at the phyla and genus level, OF enhanced nitrogen,
sulfur, phosphorus and carbon dynamic cycling in soil with the presence of Nodosilinea,
Nitrospira, LCP-6, HB118, Lyngbya, GOUTA19, Mesorhizobium, Sandaracinobacter, Syntrophobacter
and Sphingosinicella, and has the potential to strengthen soil metabolic ability with
Novosphingobium. On the other hand, CF increased the intensity of nitrogen cycling with
Ardenscatena, KD1-23, Iamia, Nitrosovibrio and Devosia, but enriched several pathogen fungal
members, including Coniochaeta, Corallomycetella, Cyclaneusma, Cystostereum, Fistulina, Curvularia
|Key_word||Bacterial and fungal community, high throughout sequencing, rice-wheat rotation, organic and conventional farming|
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