PICRUSt-based predicted metagenomic analysis of treeline soil bacteria on Mount Dongling, Beijing

Guixiang, 厉桂香 Li; Keming, 马克明 Ma

doi:10.5846/stxb201703130423

Cited by 4 publications

(3 citation statements)

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“…Among the seven categories of tertiary metabolic functions that were significantly correlated with SOC and its components, fructose and mannose metabolism ( carbohydrate metabolism ) were positively associated with carbon and nitrogen cycling, which is consistent with the findings of Ma et al ( 2021 ). Lipoic acid metabolism ( metabolism of cofactors and vitamins ) facilitates the adaptation of microbes to their environment and information transfer across the soil ecosystem (Li and Ma, 2018 ). The metabolism of terpenoids and polyketides is closely linked to the survival and development of bacterial communities (Ding et al, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

Soil bacterial community characteristics and its effect on organic carbon under different fertilization treatments

Kong,

Zhang,

Yuan

et al. 2024

Front. Microbiol.

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IntroductionBy implementing small-scale and efficient fertilization techniques, it is possible to enhance the activity of microorganisms, thereby improving soil carbon sequestration and ecological value in agriculture.MethodsIn this study, field experiments were conducted using various types of fertilizers: organic fertilizer, microbial fungal fertilizer, composite fertilizer, and an unfertilized control (CK). Additionally, different dosages of compound fertilizers were applied, including 0.5 times compound fertilizers, constant compound fertilizers, 1.5 times compound fertilizers and CK. Using advanced technologies such as Illumina MiSeq high-throughput sequencing, PICRUSt2 prediction, Anosim analysis, redundancy analysis, canonical correlation analysis, and correlation matrix, soil organic carbon (SOC) content and components, bacterial diversity, metabolic functions, and interaction mechanisms were examined in different fields.Results and DiscussionThe results showed pronounced effects of various fertilization modes on SOC and the bacterial community, particularly in the topsoil layer (0–20 cm). Organic fertilizer treatments increased the richness and diversity of bacterial communities in the soil. However, conventional doses and excessive application of compound fertilizers reduced the diversity of soil bacterial communities and SOC content. Additionally, different fertilization treatments led to an increase in easily oxidizable organic carbon (EOC) contents. Interestingly, the relationship between SOC components and soil bacteria exhibited inconsistency. EOC was positively correlated with the bacterial diversity index. Additionally, Chloroflexi exhibited a negative correlation with both SOC and its components. The influence of metabolismon primary metabolic functions on the content of SOC components in the soil was more notable. It included seven types of tertiary functional metabolic pathways significantly correlated with SOC components (p < 0.05).Purpose and SignificanceThese findings enhance the understanding of the relative abundance of bacterial communities, particularly those related to the carbon cycle, by adjusting agricultural fertilization patterns. This adjustment serves as a reference for enhancing carbon sinks and reducing emissions in agricultural soils.

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Section: Discussionmentioning

confidence: 99%

Soil bacterial community characteristics and its effect on organic carbon under different fertilization treatments

Kong,

Zhang,

Yuan

et al. 2024

Front. Microbiol.

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“…Soil microorganisms are the main components of terrestrial ecosystems, which plays a key role in the decomposition of organic matter, nutrient cycling and the degradation of harmful substances, and also play an important role in facility planting agricultural ecosystems ( Zhu et al., 2019 ; Ma et al., 2023 ). Soil bacteria are the main component of soil microorganisms ( Wang et al., 2017 ), which have high diversity, high abundance and complete functions ( Li and Ma, 2018 ; Xu et al., 2022 ; Zhu et al., 2022 ). Soil bacteria are mainly involved in the formation of humus and the mineralization of organic matter, which is essential for regulating soil enzyme activity, soil nutrient cycle and crop root morphological development ( Özbolat et al., 2023 ; Zheng et al., 2023 ).…”

Section: Introductionmentioning

confidence: 99%

The layout measures of micro-sprinkler irrigation under plastic film regulate tomato soil bacterial community and root system

Zhang

Xiao²,

Li³

et al. 2023

Front. Plant Sci.

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IntroductionThe change in rhizosphere soil bacterial community and root system under new water-saving device is not clear.MethodsA completely randomized experimental design was used to explore the effects of different micropore group spacing (L1: 30 cm micropore group spacing, L2: 50 cm micropore group spacing) and capillary arrangement density (C1: one pipe for one row, C2: one pipe for two rows, C3: one pipe for three rows) on tomato rhizosphere soil bacteria community, roots and tomato yield under MSPF. The bacteria in tomato rhizosphere soil were sequenced by 16S rRNA gene amplicon metagenomic sequencing technology, the interaction of bacterial community, root system and yield in tomato rhizosphere soil was quantitatively described based on regression analysis.ResultsResults showed that L1 was not only beneficial to the development of tomato root morphology, but also promoted the ACE index of tomato soil bacterial community structure and the abundance of nitrogen and phosphorus metabolism functional genes. The yield and crop water use efficiency (WUE) of spring tomato and autumn tomato in L1 were about 14.15% and 11.27%, 12.64% and 10.35% higher than those in L2. With the decrease of capillary arrangement density, the diversity of bacterial community structure in tomato rhizosphere soil decreased, and the abundance of nitrogen and phosphorus metabolism functional genes of soil bacteria also decreased. The small abundance of soil bacterial functional genes limited the absorption of soil nutrients by tomato roots and roots morphological development. The yield and crop water use efficiency of spring and autumn tomato in C2 were significantly higher than those in C3 about 34.76% and 15.23%, 31.94% and 13.91%, respectively. The positive interaction between soil bacterial community and root morphological development of tomato was promoted by the capillary layout measures of MSPF.DiscussionThe L1C2 treatment had a stable bacterial community structure and good root morphological development, which positively promoted the increase of tomato yield. The interaction between soil microorganisms and roots of tomato was regulated by optimizing the layout measures of MSPF to provide data support for water-saving and yield-increasing of tomato in Northwest China.

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“…However, biological crusts on the Loess Plateau differ signi cantly from those in the desert in terms of ecological functions. On the Loess Plateau, different types of biological crusts can effectively reduce rainfall kinetic energy and runoff scour, reduce soil loss, maintain soil moisture, and promote vegetation succession 11,12 .Soil bacteria are one of the most diverse, abundant and functional groups of soil microorganisms 13 . They are important drivers of biogeochemical cycles, participate in the transformation of soil nutrients 14 , and are key organisms in the material and energy cycles of ecosystems 15 .…”

Section: Introductionmentioning

confidence: 99%

Effects of mixed biocrusts on soil nutrients and bacterial community structure：A case study from Hilly Loess Plateau, China

Zhang

2023

Preprint

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In this paper, 16S rRNA sequencing analysis was carried out on the mixed crust and the surface layer of bare soil and soil under the crust in this area, and combined with the soil physical and chemical factors, the influence of the mixed crust on the bacterial community structure in the loess hilly area was explained. The results show that mixed crusts can significantly increase the conventional nutrient content of the soil in terms of fast acting phosphorus, total nitrogen and organic matter. In addition, the mixed crust layer develops its own specific bacterial community structure, with Rubrobacteria and Cyanobacteriia specifically enriched in the mixed crust layer. Redundancy analysis (RDA) showed that these particularly enriched species could be involved in the process of photosynthesis and nitrogen fixation, thereby increasing the levels of organic matter and organic nitrogen in the soil. The results of the study provide an important theoretical basis for the microbiology of ecological restoration in the hilly and gully areas of the Loess Plateau.

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PICRUSt-based predicted metagenomic analysis of treeline soil bacteria on Mount Dongling, Beijing

Cited by 4 publications

References 0 publications

Soil bacterial community characteristics and its effect on organic carbon under different fertilization treatments

Soil bacterial community characteristics and its effect on organic carbon under different fertilization treatments

The layout measures of micro-sprinkler irrigation under plastic film regulate tomato soil bacterial community and root system

Effects of mixed biocrusts on soil nutrients and bacterial community structure：A case study from Hilly Loess Plateau, China

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