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Sustainability
Article . 2023 . Peer-reviewed
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Sustainability
Article . 2023
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Physiochemical Properties and Microflora of the Rhizosphere Soil of Tobacco Plants with and without Bacterial Wilt

Authors: Cong Zheng; Wei Li; Yang Zhou; Zhiwen Zhu; Xiaozong Wu;

Physiochemical Properties and Microflora of the Rhizosphere Soil of Tobacco Plants with and without Bacterial Wilt

Abstract

Bacterial wilt is a destructive soilborne disease caused by Ralstonia solanacearum, posing a severe threat to plants in the Solanaceae family. It impacts on tobacco productivity worldwide. This study was conducted to analyze the changes in the soil’s physical and chemical properties, the number of microbes, and the bacterial diversity of the rhizosphere soil before and after the wilt disease. The rhizosphere soil of healthy and diseased tobacco plants was collected from Pucheng, Nanping, Fujian Province, Southern China. The results revealed significant differences in the trends of physical and chemical properties of the soil of healthy and diseased plants. The soil pH, available potassium (K), available phosphorous (P), and organic matter contents (SOM) were lower in the rhizosphere soil for healthy plants than for pre-diseased plants (HW). Only the available P, among all physical and chemical properties in the rhizosphere of diseased plants (HS), was significantly lower than those for pre-diseased plants (HW), changing from 149.59 mg/kg to 59.19 mg/kg. The order of numbers of the three main microbes in the rhizosphere soil for healthy plants (HC) and pre-diseased plants was the following: bacteria > actinomycetes > fungi. The number of actinomycetes in the soil of the diseased tobacco plants increased significantly. A comparison of the rhizosphere soil of diseased and healthy tobacco plants showed that the relative abundance of the bacterial community in the rhizosphere soil of the pathogenic tobacco plants changed significantly. The community diversity was increased, and the Pseudomonadaceae, to which the bacterial pathogen of bacterial wilt belonged, rose to a certain extent. Both pre-diseased and healthy plants showed changes in the physical and chemical properties, microbial quantity, and microbial diversity, thus proving that tobacco disease was closely related to the soil’s ecological environment.

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Keywords

soil health, Environmental effects of industries and plants, rhizosphere soil, TJ807-830, TD194-195, Renewable energy sources, bacterial wilt, Environmental sciences, microbial diversity, Southern China, GE1-350

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Top 10%
Average
Top 10%
gold