Difference of Bacterial Community Structure in the Meadow, Maize, and Continuous Cropped Alfalfa in Northeast China

Yang, Zhao; Xu, Yanxia; Li, Hong; Li, Shasha; Wang, Xiaolong; Chai, Hua

doi:10.3389/fmicb.2022.794848

Cited by 5 publications

(6 citation statements)

References 35 publications

(54 reference statements)

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“…Furthermore, Mycobacterium phlei was identified as an efficient bacterial strain for enhancing maize growth (Egamberdiyeva, 2007). In Northeast China, Yang et al (2022) demonstrated that maize cropping and continuous cropping of alfalfa increased soil bacterial alpha diversity compared with meadow cropping. This can be attributed to soil management practices, including tillage operations, which promote increased decomposition and mineralization of available nutrients, thereby influencing the structure of soil bacterial communities.…”

Section: Introductionmentioning

confidence: 99%

Stability of soil bacteria in undisturbed soil and continuous maize cultivation in Northern Thailand

Arunrat,

Sansupa,

Sereenonchai

et al. 2023

Front. Microbiol.

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Rotational shifting cultivation (RSC) in Northern Thailand serves the dual purpose of ensuring food security and meeting economic goals through maize cultivation. However, the research question remains: Does the dynamics of soil bacterial communities differ between maize monoculture and RSC fields with continuous fallow throughout the season? Therefore, the objective of this study was to investigate and compare the variation of soil bacterial communities in maize monoculture and fallow RSC fields. A continuous 5-year fallow field (undisturbed soil; CF-5Y) and a continuous 5-year maize cultivation field (M-5Y) in Mae Chaem District, Chiang Mai Province, Northern Thailand, were selected due to their similarities in microclimate, topography, and the 5-year duration of different field activities. Over the span of a year, we collected soil samples from the surface layer (0–2 cm depth) at both sites. These collections occurred at 3-month intervals, starting from March 2022 (summer season) and followed by June (rainy season), September (rainy season), December (winter season), and March 2023 (summer season). Soil bacterial diversity and composition were analyzed using 16S rRNA gene-based metagenomic analysis. The results found that undisturbed soil over a 5-year period exhibited more stability in the richness and diversity of bacteria across seasons compared with M-5Y. Notably, fertilizer application and tillage practices in M-5Y can enhance both the diversity and richness of soil bacteria. In terms of bacterial abundance, Proteobacteria prevailed in CF-5Y, while Actinobacteria dominated in M-5Y. At the genus level, Candidatus Udaeobacter dominated during the summer and winter seasons in both CF-5Y and M-5Y sites. Interestingly, during the rainy season, the dominant genus shifted to Bacillus in both CF-5Y and M-5Y fields. The soil bacterial community in M-5Y was strongly influenced by organic matter (OM) and organic carbon (OC). In contrast, in CF-5Y, there was no correlation between soil properties and the soil bacterial community, likely due to the lower variation in soil properties across seasons. β-Glucosidase was the dominant enzyme in both CF-5Y and M-5Y sites, and it showed a positive correlation with OM and OC. Further studies should continue to investigate soil bacteria dynamics, considering the changes in land management practices.

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Section: Introductionmentioning

confidence: 99%

Stability of soil bacteria in undisturbed soil and continuous maize cultivation in Northern Thailand

Arunrat,

Sansupa,

Sereenonchai

et al. 2023

Front. Microbiol.

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“…Furthermore, PCoA analysis revealed that the continuous cropping of the Yongfeng yam significantly affected bacterial communities, which was consistent with Pang et al who found that the continuous cropping of sugarcane for different times also obviously affected the bacterial community [ 14 ]. This phenomenon was also observed in the continuous cropping of sweet potato [ 38 ], peanut [ 35 ] and alfalfa [ 45 ]. Overall, these results indicated that continuous cropping had certain effects on the composition of the rhizospheric soil bacterial community.…”

Section: Discussionmentioning

confidence: 71%

Effects of the Long-Term Continuous Cropping of Yongfeng Yam on the Bacterial Community and Function in the Rhizospheric Soil

Yao

Fan

et al. 2023

Microorganisms

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Replant disease caused by continuous cropping commonly occurs in yam with consecutive monoculture. However, little is known about how the continuous cropping of yam affects the rhizospheric soil bacterial community structure. In this study, the effects of continuous cropping on rhizospheric soil characteristics, bacterial diversity, and community structure were investigated in the Yongfeng yam fields under monoculture for 1, 5, 10, 15, and 20 years. Long-term monoculture caused soil acidification and increased the concentration of available potassium (AK) and available phosphorus (AP), and soil bacterial richness, but decreased the soil bacterial diversity. An exception was for the field under monoculture for 20 years as it showed the highest bacterial diversity. The relative abundance of beneficial bacteria, such as Proteobacteria, Actinobacteria, and Chloroflexi decreased while the relative abundance of harmful bacteria, including Gemmatimonadetes and Acidobacteria, increased with an extended continuous cultivation time. The networks varied among yams with different cultivation years and became complex with the increase in cultivation years. However, after time in monoculture, the bacterial network decreased gradually and existed stably. These changes in bacterial community composition and co-occurrence of networks may increase the potential risk of soil-borne disease and reduce the yield and quality of Yongfeng yam.

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“…Research by [81] showed a non-linear response of bacteria to N addition, but the loss of biodiversity was explained by a combination of parameters such as increasing N content, decreasing pH, plant community. Studies showed that cultivation of alfalfa and maize increased alpha bacterial diversity in the soil compared to meadows cropping, and even increases in long-term, continuous cultivation [63]. However, studies confirming currants' production of compounds attractive to soil bacteria are not available.…”

Section: Microbiome Diversity Of Fluvisolsmentioning

confidence: 99%

“…A study by [26] showed that it is the type of land use that significantly influences the composition of the soil microbial community at the cluster level, in floodplain soils. A high abundance of Actinobacteria and Proteobacteria is characteristic of soils with high nutrient availability [63].…”

Section: Microbiome Diversity Of Fluvisolsmentioning

confidence: 99%

“…Nevertheless, it can be assumed that several years of currant cultivation modify the chemical properties of the soil and especially of the rhizosphere. The secretion of flavonoids and plant hormones into the soil may affect the diversity of microorganisms [63]. Soil redundancy and the preservation of eubiosis may be more important than the addition of nutrients to the soil [83].…”

Section: Microbiome Diversity Of Fluvisolsmentioning

confidence: 99%

See 1 more Smart Citation

The Influence of Human Agricultural Activities on the Quality of Selected Fluvisols from the Vistula River Valley, Poland—Preliminary Research

Furtak,

Gawryjołek,

Marzec-Grządziel

et al. 2024

Agronomy

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Studies on the impact of human agricultural activities on the soil microbiome and soil quality are extremely important, but such studies on floodplains in river valleys are lacking. The aim of this preliminary study was to determine the impact of blackcurrant cultivation on Fluvisols located in the Vistula River valley (Poland). The dehydrogenases (DHa) and phosphatases (acid-AcP, and alkaline-AlP) activities, carbon (MBC) and nitrogen (MBN) contents of the microbial biomass, the metabolic potential of the microbial community (EcoPlate™ Biolog) and taxonomic diversity of the soil microbiome were determined (next-generation sequencing (NGS) of the 16S rRNA gene). Enzymatic activity and metabolic potential and diversity (EcoPlate™) were higher in the soils from meadows, but MBC and MBN and biodiversity indices derived from NGS were higher in the cultivated soils. It can be confirmed that human activities affect the physicochemical, biological and microbiological parameters of Fluvisols. This may indicate that microorganisms are numerically more abundant and taxonomically more diverse in the cultivated soils, but are more active in the soils from meadows.

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Difference of Bacterial Community Structure in the Meadow, Maize, and Continuous Cropped Alfalfa in Northeast China

Cited by 5 publications

References 35 publications

Stability of soil bacteria in undisturbed soil and continuous maize cultivation in Northern Thailand

Stability of soil bacteria in undisturbed soil and continuous maize cultivation in Northern Thailand

Effects of the Long-Term Continuous Cropping of Yongfeng Yam on the Bacterial Community and Function in the Rhizospheric Soil

The Influence of Human Agricultural Activities on the Quality of Selected Fluvisols from the Vistula River Valley, Poland—Preliminary Research

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