Rhizosphere Microbial Community as Affected by Sweet Potato Stem Rot Disease

CHEN Haisheng; TANG Chaowen; LIU Shouping; CHEN Weiqiang; HOU Jinxiang

doi:10.19303/j.issn.1008-0384.2022.009.011

Volume 37 Issue 9

Sep. 2022

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Article Navigation > Fujian Journal of Agricultural Sciences > 2022 > 37(9): 1194-1202

CHEN H S, TANG C W, LIU S P, et al. Rhizosphere Microbial Community as Affected by Sweet Potato Stem Rot Disease [J]. Fujian Journal of Agricultural Sciences，2022，37（9）：1194−1202 doi: 10.19303/j.issn.1008-0384.2022.009.011

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CHEN H S, TANG C W, LIU S P, et al. Rhizosphere Microbial Community as Affected by Sweet Potato Stem Rot Disease [J]. Fujian Journal of Agricultural Sciences，2022，37（9）：1194−1202 doi: 10.19303/j.issn.1008-0384.2022.009.011

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Rhizosphere Microbial Community as Affected by Sweet Potato Stem Rot Disease

doi: 10.19303/j.issn.1008-0384.2022.009.011

1.
Zhejiang Tongji Vocational College of Science and Technology, Hangzhou, Zhejiang　311231, China
2.
Yiyang Vocational and Technical College, Yiyang, Hunan　413000, China
3.
Taizhou Academy of Agricultural Sciences, Linhai, Zhejiang　317000, China

Received Date: 2022-04-12
Rev Recd Date: 2022-06-09

Available Online: 2022-10-05

Publish Date: 2022-09-30

Abstract

Abstract

Objective Microbial communities in rhizosphere soils of healthy sweet potato plants and those infected by the stem rot disease (SPSR) were compared for ecological disease control. Method Rhizosphere soil samples at fields of healthy and SPSR-infected sweet potatoes in between north and south planting regions and disease occurring western hilly areas of Huangyan, Taizhou City, Zhejiang Province, were collected. Enzyme activity and microbial community in the soil were analyzed using the traditional and high throughput sequencing techniques. Results Compared with the rhizosphere soils of non-infected plants, those associated with the SPSR-infected sweet potatoes exhibited significant inhibition on the activities of urease, invertase, and alkaline phosphatase as well as significant increases on the microbial diversity and richness such as Chao1 and Shannon indices. At phylum level, the average relative abundance of dominant microbes, such as Actinobacteria, Verrucomicroba, and Bacteroidetes, were significantly lower in the SPSR soil, but that of Chloroflexi and Candidate-division-wps-2 significantly higher. At genus level, the average relative abundance of GP_₁, Firmicutes-unclassified, and Gemmatimonas was higher in the SPSR samples, while that of Streptomycetaceae-unclassified, Streptacidiphilus, and Burkhoideria lower. Conclusion In the rhizosphere soils of SPSR-infected sweet potato plants, the activities of some important soil enzymes were low. At both phylum and genus levels, the great variations in the abundance of dominant microorganisms existed between the healthy and SPSR rhizosphere soils.
- Stem base rot disease of sweet potato,
- high throughput sequencing,
- rhizosphere soil microbial community structure,
- soil enzyme activity

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References(37)

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