Long-Term Chili Monoculture Alters Environmental Variables Affecting the Dominant Microbial Community in Rhizosphere Soil

Chen, Wenjing; Guo, Xiaodong; Guo, Qinglin; Tan, Xiaofeng; Wang, Zhigang

doi:10.3389/fmicb.2021.681953

Cited by 14 publications

(7 citation statements)

References 61 publications

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“…The continuous cropping barriers are considered the phenomenon in which after the soil was continuously planted with the same or related crops for a long time, the growth of the crop was weakened even under normal conditions of management, resulting in reduced production and quality ( Gao et al, 2019 ; Chen et al, 2021 ). Wine grapes, a crop with a high economic value and a long cultivation period with continuous cropping, are typical.…”

Section: Discussionmentioning

confidence: 99%

“…The effects of continuous cropping of wine grapes regarding their associated microorganisms were primarily achieved through the assimilation and transformation of nutrients and the secretion of metabolites during plant growth ( Zhang C. et al, 2019 ; Chen et al, 2021 ). The alteration in the resident soil microflora has been widely associated with variations in the physicochemical properties of soil, SEA, and crop type ( Zhang et al, 2016 ; Liu et al, 2021 ; Fan et al, 2022 ).…”

Section: Discussionmentioning

confidence: 99%

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Impact of wine-grape continuous cropping on soil enzyme activity and the composition and function of the soil microbial community in arid areas

Song,

Zhu,

et al. 2024

Front. Microbiol.

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IntroductionContinuous cropping affected the stability of soil enzyme activity and the structural characteristics of microbial community. Owing to challenges in the study of complex rhizosphere microbial communities, the composition and function of these microbial communities in farmland ecosystems remain elusive. Here, we studied the microbial communities of the rhizosphere of wine grapes with different years of continuous cropping and investigated their relationships with soil enzyme activity.MethodsMetagenomic sequencing was conducted on the rhizosphere soils from one uncultivated wasteland and four vineyards with varying durations of continuous cropping.ResultsThe predominant microbial were bacteria (98.39%), followed by archaea (1.15%) and eukaryotes (0.45%). Continuous cropping caused a significant increase in the relative abundance of Rhizobiales and Micrococcales but a marked decrease in Solirubrobacterales. At the genus level, 75, 88, 65, 132, and 128 microbial genera were unique to uncultivated wasteland, 5, 10, 15, and 20 years of continuous cropping, respectively. The relative abundance of genes with signal transduction function was the highest. The activity of all enzymes measured in this study peaked at 5 years of continuous cropping, and then decreased with 10 to 15 year of continuous cropping, but increased at 20 years again. In addition, soil enzyme activity, especially of alkaline phosphatase was significantly correlated with the diversity of the dominant microorganisms at the genus level. Moreover, the coupled enzyme activities had a greater impact on the diversity of the microbial community than that of individual enzymes.ConclusionOur findings reveal the composition and function of the soil microbial communities and enzymes activity in response to changes in cropping years, which has important implications for overcoming continuous cropping obstacles and optimizing land use.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Impact of wine-grape continuous cropping on soil enzyme activity and the composition and function of the soil microbial community in arid areas

Song,

Zhu,

et al. 2024

Front. Microbiol.

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“…This is probably due to increased levels of acidic ions (NO 3 − , SO 4 2− , Cl − , etc. ), which gradually acidify the soil [32,33]. The findings of a recent study indicated that the decrease in soil pH may be related to the secretion of more acidic substances by the root system during Eucalyptus growth [6].…”

Section: Influence Of Plantation Age On Nutrient Content Of Soilmentioning

confidence: 99%

Soil Nutrient, Enzyme Activity, and Microbial Community Characteristics of E. urophylla × E. grandis Plantations in a Chronosequence

Zhang,

Zhu,

Zhuang

et al. 2024

Forests

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The effects of continuous Eucalyptus cropping on soil properties and microbial characteristics and the specific factors influencing tree species growth remain elusive. In this study, three Eucalyptus stands of three different ages were selected, and soil nutrients, microbial biomass, enzyme activity, microbial community composition, and diversity were quantified for each. The findings indicated a significant decline in soil pH, soil cation exchange, soil organic matter, and available phosphorus content with the plantation age. Simultaneously, there was an observed increase in soil alkaline hydrolyzed nitrogen content. In addition, urease and acid phosphatase activities did not show a significant difference with age. In spite of this, catalase activity exhibited a decline corresponding to the advancement in plantation age. The carbon and nitrogen content of the soil microbial biomass increased with the progression of Eucalyptus planting time. The high-throughput sequencing data demonstrated a reduction in microbial diversity in Eucalyptus soils as the planting age increased. Interestingly, the microbial community structure exhibited minimal alterations, and did not exhibit a predominantly oligotrophic state overall. In conclusion, the study results showed that short-term successive Eucalyptus cropping exerts a significant negative impact on the soil system.

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“…It was shown that ALP activity increased significantly with a significant decrease in AP in continuous pure Eucalyptus stands. This phenomenon can be elucidated by the limitation of phosphorus nutrients, since microorganisms limited by a particular nutrient excrete the corresponding enzyme to acquire this resource [61]. Related studies have demonstrated that soil microorganisms promote the expression and activities of corresponding nutrient-acquiring enzymes during nutrient limitation, which in turn increases the enzyme activity when soil nutrient availability is reduced [60].…”

Section: Activity Of Soil Enzymes In Response To Different Transforma...mentioning

confidence: 99%

Soil Enzyme Activity Differs among Native Species and Continuously Planted Eucalyptus Plantations

Cheng,

Du,

Wang

et al. 2023

Forests

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In recent years, monoculture and multi-rotation successional Eucalyptus plantations have given rise to several environmental issues, including the degradation of soil quality and nutrient imbalance, and the conversion of logging sites to multi-rotation Eucalyptus plantations has attracted considerable attention from the scientists involved. However, the effects of different management strategies on soil extracellular enzyme activities (EEAs) and enzyme stoichiometry (ES) in degraded Eucalyptus plantations are not clear. In this study, we investigated the responses and mechanisms of soil physicochemical properties, microbial biomass, carbon, and nitrogen- and phosphorus-acquiring enzyme activities, as well as the microbial resource requirements of Eucalyptus plantations, under different management strategies. The findings revealed that second-rotation (TWE) and third-rotation (THE) continuous plantings of pure Eucalyptus plantations resulted in significant decreases in soil organic carbon (SOC), total nitrogen (TN) and effective available phosphorus (AP) contents, while soil nutrient contents increased after the introduction of Manglietia glauca to form mixed forests (EM) with Eucalyptus or pure Manglietia glauca (M). Meanwhile, phosphorus-acquiring enzymes significantly increased with successive rotations of Eucalyptus (TWE and THE), while EEAC:P and EEAN:P gradually decreased and phosphorus limitation gradually increased compared to that of a native-species-mixed plantation (CK). After the introduction of Manglietia glauca (EM and M), phosphorus-acquiring enzyme activities showed lower levels and there were significant increases in EEAC:P and EEAN:P compared to those of continuous plantings of pure Eucalyptus plantations, which reduced microbial phosphorus demand. Moreover, soil nutrients played a more significant role in altering the EEAs and ES than did microbial biomass (0–10 cm: 72.7% > 53.3%, 10–20 cm: 54.5% > 32.6%). The results showed that EM and M improved soil fertility quality conditions and alleviated soil nutrient phosphorus limitations for soil microorganisms. Therefore, the introduction of Manglietia glauca, either to form mixed forests with Eucalyptus or in rotation with Eucalyptus, can be used as technical means for the conversion of multi-rotation successive Eucalyptus plantations.

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Long-Term Chili Monoculture Alters Environmental Variables Affecting the Dominant Microbial Community in Rhizosphere Soil

Abstract: Graphical AbstractLong-term chili monoculture alters environmental variables affecting the dominant microbial community in rhizosphere soil.

Cited by 14 publications

References 61 publications

Impact of wine-grape continuous cropping on soil enzyme activity and the composition and function of the soil microbial community in arid areas

Impact of wine-grape continuous cropping on soil enzyme activity and the composition and function of the soil microbial community in arid areas

Soil Nutrient, Enzyme Activity, and Microbial Community Characteristics of E. urophylla × E. grandis Plantations in a Chronosequence

Soil Enzyme Activity Differs among Native Species and Continuously Planted Eucalyptus Plantations

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