What’s under the Christmas Tree? A Soil Sulfur Amendment Lowers Soil pH and Alters Fir Tree Rhizosphere Bacterial and Eukaryotic Communities, Their Interactions, and Functional Traits

Steven, Blaire; LaReau, Jacquelyn; Taerum, Stephen J.; Zuverza‐Mena, Nubia; Cowles, Richard S.

doi:10.1128/spectrum.00166-21

Cited by 10 publications

(10 citation statements)

References 58 publications

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“…Cercozoa is a bacterial predator [31] . with a higher relative abundance in regions B and F and is sensitive to changes in soil pH, consistent with the ndings noted by Blaire Steven et al [7] . In addition, the relative abundance of Cercozoa was related to the RH of the local environment.…”

Section: Rhizosphere Microbial Diversity In Different Regionssupporting

confidence: 92%

“…Regions A, B, E, and F showed the opposite results. Blaire Steven et al (2021) suggested that the r tree rhizosphere microbial 16S rRNA gene dataset was more diverse than the 18S rRNA gene dataset, and the bacterial community was more varied than the eukaryotes community [7] . The diversity study results were consistent with the rhizosphere microbial diversity conclusions in regions C, D, G, and H. However, they were in contrast to the diversity study results in regions A, B, E, and F. According to Yurong Yang et al ( 2021), regarding the microbial diversity and communities in the rhizosphere and inner compartments of grassland dominant perennials, grazing reduced interactions among bacterial genera, but there was no difference in interactions among fungal genera [21] .…”

Section: Rhizosphere Microbial Diversity In Different Regionsmentioning

confidence: 99%

“…In recent years, due to soil nutrient loss, human grazing activities, climate change, and pest and disease outbreaks [5] , the pressure on the ecosystem has continuously increased [6] , resulting in a fragile ecological environment, loss of original adaptive capacity, further aggravation of large-scale degradation of wild apple forests, and death. Bacteria, archaea and eukaryotes in rhizosphere soil microbial community are important biologically active component of forest ecosystems [7] . Maintaining the dynamic balance and biodiversity of the rhizosphere microbial community structure will help protect the coordination mechanisms of the entire ecosystem and buffer negative impacts [8] .…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Microbial Community Structure, and Environmental Factors in the Rhizosphere of Malus sieversii (Ldb.) Roem. in Different Regions of Xinjiang

Jiao

Wang

Liu

et al. 2022

Preprint

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Malus sieversii (Ldb.) Roem., the original species of modern cultivated apples, is a national essential protected plant in China. Due to soil nutrient loss, grazing, climate change, and diseases and insect pest outbreaks, the rhizosphere microecological imbalance of wild apple forests has aggravated the degradation and death of wild apples in recent years. So far, the structural diversity, function, and response to environmental drivers of the wild apple rhizosphere microbial community are not unclear. 16S/18S rDNA high-throughput sequencing were used in this study to analyze the rhizosphere bacterial and eukaryotic communities of M. sieversii (Ldb.) Roem. in eight regions of the Ili River. The results indicated that the bacterial operational taxonomic units (OTUs), Shannon value, and community composition were significantly lower in regions A, E, and F than in other regions. However, the composition of dominant eukaryotic communities in the eight regions was relatively similar, and the difference was smaller than the relative abundance of bacterial communities. Through redundancy analysis, it was found that Acidobacteriota, Verrucomicrobiota, Planctomycetota, Chloroflexi, and Methylomirabilota microbial communities with a lower relative abundance in regions A, B, E, and F, was affected by soil pH, alkaline-hydrolyzable nitrogen (AN), available phosphorus (AP), and potassium (AK), altitude, and relative humidity (RH). The results showed that the relative abundance of microorganisms in regions A, B, E, and F could be increased by rationally increasing soil nutrients.

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Section: Rhizosphere Microbial Diversity In Different Regionssupporting

confidence: 92%

Section: Rhizosphere Microbial Diversity In Different Regionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of Microbial Community Structure, and Environmental Factors in the Rhizosphere of Malus sieversii (Ldb.) Roem. in Different Regions of Xinjiang

Jiao

Wang

Liu

et al. 2022

Preprint

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“…As we know, bacteria of the Acidothermus genus were able to grow under acidic conditions and degrade plant tissues [25,34], which normally cause increases in organic matter and magnesium content, as well as available nitrogen and calcium. Interestingly, most of these soil parameters are associated with soil pH [35]. Thus, it can be inferred that the lower pH in diseased bayberry rhizosphere soil may be partially due to the reduction in the relative abundance of Acidothermus.…”

Section: Soil Propertiesmentioning

confidence: 99%

The Damage Caused by Decline Disease in Bayberry Plants through Changes in Soil Properties, Rhizosphere Microbial Community Structure and Metabolites

Ren

Wang

et al. 2021

Plants

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Decline disease causes serious damage and rapid death in bayberry, an important fruit tree in south China, but the cause of this disease remains unclear. The aim of this study was to investigate soil quality, microbial community structure and metabolites of rhizosphere soil samples from healthy and diseased trees. The results revealed a significant difference between healthy and diseased bayberry in soil properties, microbial community structure and metabolites. Indeed, the decline disease caused a 78.24% and 78.98% increase in Rhizomicrobium and Cladophialophora, but a 28.60%, 57.18%, 38.84% and 68.25% reduction in Acidothermus, Mortierella, Trichoderma and Geminibasidium, respectively, compared with healthy trees, based on 16S and ITS amplicon sequencing of soil microflora. Furthermore, redundancy discriminant analysis of microbial communities and soil properties indicated that the main variables of bacterial and fungal communities included pH, organic matter, magnesium, available phosphorus, nitrogen and calcium, which exhibited a greater influence in bacterial communities than in fungal communities. In addition, there was a high correlation between the changes in microbial community structure and secondary metabolites. Indeed, GC–MS metabolomics analysis showed that the healthy and diseased samples differed over six metabolic pathways, including thiamine metabolism, phenylalanine–tyrosine–tryptophan biosynthesis, valine–leucine–isoleucine biosynthesis, phenylalanine metabolism, fatty acid biosynthesis and fatty acid metabolism, where the diseased samples showed a 234.67% and 1007.80% increase in palatinitol and cytidine, respectively, and a 17.37%–8.74% reduction in the other 40 metabolites compared to the healthy samples. Overall, these results revealed significant changes caused by decline disease in the chemical properties, microbiota and secondary metabolites of the rhizosphere soils, which provide new insights for understanding the cause of this bayberry disease.

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“…Bacteria, archaea and eukaryotes in the rhizosphere microbial community were essential bioactive components of forest ecosystems [ 7 ]. It was found that maintaining the dynamic balance and diversity of the rhizosphere microbial community structure will helped to protect the co-ordination mechanisms of the whole ecosystem and buffered negative impacts [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

The rhizosphere Microbiome of Malus sieversii (Ldb.) Roem. in the geographic and environmental gradients of China's Xinjiang

et al. 2023

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Malus sieversii (Ldb.) Roem. is the original species of modern cultivated apple and a key national essential conservation plant in China. In recent years, degradation and death of wild apple has been exacerbated by imbalances in the rhizosphere micro-ecosystems of wild apple forests due to soil nutrient loss, grazing, climate change and pest and disease outbreaks. However, the structure, diversity and response to environmental factors of wild apple rhizosphere microbial communities are so far unclear. In this study, the rhizosphere bacterial and eukaryotic communities of M. sieversii (Ldb.) Roem. in eight regions of the Yili River were analyzed using 16S/18S rDNA high-throughput sequencing technology. The results indicated that the bacterial operational taxonomic units (OTUs), Shannon index, and community composition were significantly lower in regions A, E, and F than in other regions. By contrast, the dominant eukaryotic communities in all regions were relatively similar in composition and differed less than the relative abundance of bacterial communities. Geographical and climatic distance were found to be key factors influencing the composition and diversity of wild apple rhizosphere microbial communities through mantel analysis. Moreover, these factors above were more correlated with bacterial diversity than with eukaryotes. This study identified the structure of wild apple rhizosphere microbial communities in Xinjiang and their interaction mechanisms under geographical and environmental gradients. It provides guidance for the sustainable management and ecological construction of wild apple forests in China.

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What’s under the Christmas Tree? A Soil Sulfur Amendment Lowers Soil pH and Alters Fir Tree Rhizosphere Bacterial and Eukaryotic Communities, Their Interactions, and Functional Traits

Cited by 10 publications

References 58 publications

Analysis of Microbial Community Structure, and Environmental Factors in the Rhizosphere of Malus sieversii (Ldb.) Roem. in Different Regions of Xinjiang

Analysis of Microbial Community Structure, and Environmental Factors in the Rhizosphere of Malus sieversii (Ldb.) Roem. in Different Regions of Xinjiang

The Damage Caused by Decline Disease in Bayberry Plants through Changes in Soil Properties, Rhizosphere Microbial Community Structure and Metabolites

The rhizosphere Microbiome of Malus sieversii (Ldb.) Roem. in the geographic and environmental gradients of China's Xinjiang

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