Dissecting the effect of continuous cropping of potato on soil bacterial communities as revealed by high-throughput sequencing

Plant rhizosphere-associated bacterial communities play key roles in affecting host health in response to diverse biotic stresses. Currently, the effect of continuous cropping of potato on soil bacterial communities and physiochemical parameters has not been well documented. Herein, we compared bact...

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Bibliographic Details
Published in:PloS one 2020-05, Vol.15 (5), p.e0233356
Main Authors: Zhao, Jing, Zhang, Dai, Yang, Yiqing, Pan, Yang, Zhao, Dongmei, Zhu, Jiehua, Zhang, Likui, Yang, Zhihui
Format: Article
Language:English
Subjects:
Abundance
Actinobacteria
Agricultural production
Agricultural research
Bacteria
Biology and Life Sciences
Composition
Continuous cropping
Crop diseases
Cropping systems
Deoxyribonucleic acid
DNA
Ecology and Environmental Sciences
Environmental aspects
Firmicutes
Medicine and Health Sciences
Microbial colonies
Microorganisms
Next-generation sequencing
Organic matter
Organic matter in soil
Organic phosphorus
Organic soils
Pathogens
Phosphorus
Physiochemistry
Physiological aspects
Plant communities
Plant growth
Potassium
Potatoes
Proteobacteria
Rhizosphere
Soil microbiology
Soil microorganisms
Soil organic matter
Soil properties
Soil testing
Soils
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Summary:Plant rhizosphere-associated bacterial communities play key roles in affecting host health in response to diverse biotic stresses. Currently, the effect of continuous cropping of potato on soil bacterial communities and physiochemical parameters has not been well documented. Herein, we compared bacterial composition and diversity in rotationally and continuously (5, 10, and 30 years) cropped soils, and clarified the correlations between soil properties and the bacterial communities revealed by Illumina MiSeq sequencing. Our results demonstrated that Proteobacteria, Actinobacteria and Firmicutes were the predominant phyla in all the tested soil samples. While the abundance of Proteobacteria showed an increase, the abundance of Actinobacteria and Firmicutes displayed a reduction with the increase of continuous cropping years. At the genus level, as continuous cropping years increasing, the abundance of Pseudarthrobacter, Bacillus and Pseudomonas decreased, but the abundance of Rhodanobacte, Sphingobium, Mizugakiibacter and Devosia increased. Our results also demonstrated that the abundance of plant growth-promoting rhizobacteria in the rotationally cropped soil was significantly higher than that of continuously cropped soil. Furthermore, our results showed that soil organic matter, available nitrogen, available phosphorus and available potassium were significantly correlated with bacterial community distribution. Overall, our work provides a comprehensive view of altered structure and composition of bacterial communities between the continuously cropped soil and rotationally cropped soil.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0233356