Elevational is the main factor controlling the soil microbial community structure in alpine tundra of the Changbai Mountain

Tang, Mingze; Wang, Xiaolong; You, Jian Wei; Li, Jiangnan; Chen, Xia

doi:10.1038/s41598-020-69441-w

Cited by 54 publications

(35 citation statements)

References 89 publications

(117 reference statements)

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“…The structure and diversity of the soil microbial community are easily affected by factors such as climate change, vegetation types, and soil properties (Liang et al, 2015 ; Tang et al, 2020 ; Tan et al, 2021 ). Previous studies showed that the soil bacterial community structure of paddy fields with different cultivation years of continuous fertilization has differentiated, and the soil bacterial community of paddy fields with 25 years of cultivation is significantly different from that of 9 and 15 years of cultivation (Li et al, 2019a ).…”

Section: Discussionmentioning

confidence: 99%

Soil Bacterial Community in the Multiple Cropping System Increased Grain Yield Within 40 Cultivation Years

Chen

Zheng

et al. 2021

Front. Plant Sci.

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The shortage of land resources restricts the sustainable development of agricultural production. Multiple cropping has been widely used in Southern China, but whether the continuous planting will cause a decline in soil quality and crop yield is unclear. To test whether multiple cropping could increase grain yield, we investigated the farmlands with different cultivation years (10–20 years, 20–40 years, and >40 years). Results showed that tobacco-rice multiple cropping rotation significantly increased soil pH, nitrogen nutrient content, and grain yield, and it increased the richness of the bacterial community. The farmland with 20–40 years of cultivation has the highest soil organic carbon (SOC), ammonium nitrogen, and grain yield, but there is no significant difference in the diversity and structure of the bacterial community in farmlands with different cultivation years. The molecular ecological network indicated that the stability of the bacterial community decreased across the cultivation years, which may result in a decline of farmland yields in multiple cropping system> 40 years. The Acidobacteria members as the keystone taxa (Zi ≥ 2.5 or Pi ≥ 0.62) appeared in the tobacco-rice multiple cropping rotation farmlands, and the highest abundance of Acidobacteria was found in the farmland with the highest SOC and ammonium nitrogen content, suggesting Acidobacteria Gp4, GP7, GP12, and GP17 are important taxa involved in the soil carbon and nitrogen cycle. Therefore, in this study, the multiple cropping systems for 20 years will not reduce the crop production potential, but they cannot last for more than 40 years. This study provides insights for ensuring soil quality and enhancing sustainable agricultural production capacity.

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Section: Discussionmentioning

confidence: 99%

Soil Bacterial Community in the Multiple Cropping System Increased Grain Yield Within 40 Cultivation Years

Chen

Zheng

et al. 2021

Front. Plant Sci.

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“…In these cases, the true aspects of the environment imparting selective pressures cannot be known without further experiments. For example, suppose elevation gradients drove differences in microbial communities in Hawaiian habitats, as they do in other regions (Tang et al, 2020). Under this hypothetical scenario, differences in pathogenicity or nutritional quality of microbial communities might be the true driver of variation in selection pressure for Hawaiian C.…”

Section: The Genomic Architecture Of Local Adaptationmentioning

confidence: 99%

Local adaptation and spatiotemporal patterns of genetic diversity revealed by repeated sampling of Caenorhabditis elegans across the Hawaiian Islands

Crombie

Battlay

Tanny

et al. 2021

Preprint

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The nematode Caenorhabditis elegans is among the most widely studied organisms, but relatively little is known about its natural ecology. Wild C. elegans have been isolated from both temperate and tropical climates, where they feed on bacteria associated with decomposing plant material. Genetic diversity is low across much of the globe but high in the Hawaiian Islands and across the Pacific Rim. The high genetic diversity found there suggests that: (1) the origin of the species lies in Hawaii or the surrounding Pacific Rim; and (2) the ancestral niche of the species is likely similar to the Hawaiian niche. A recent study of the Hawaiian niche found that genetically distinct groups appeared to correlate with elevation and temperature, but the study had a limited sample size. To better characterize the niche and genetic diversity of C. elegans on the Hawaiian Islands and to explore how genetic diversity might be influenced by local adaptation, we repeatedly sampled nematodes over a three-year period, measured various environmental parameters at each sampling site, and whole-genome sequenced the C. elegans isolates that we identified. We found that the typical Hawaiian C. elegans niche is moderately moist native forests at high elevations (500 to 1500 meters) where temperatures are cool (15 to 20°C). We measured levels of genetic diversity and differentiation among Hawaiian strains and found evidence of seven genetically distinct groups distributed across the islands. Then, we scanned these genomes for signatures of local adaptation and identified 18 distinct regions that overlap with hyperdivergent regions, which are likely maintained by balancing selection and enriched for genes related to environmental sensing, xenobiotic detoxification, and pathogen resistance. These results provide strong evidence of local adaptation among Hawaiian C. elegans and a possible genetic basis for this adaptation.

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“…Elevational gradients have been studied to evaluate the relationships between altitude, spatial distribution patterns, and basic biome ecological processes in montane ecosystems 1 – 3 . Understanding how soil bacterial communities respond to particular environmental variables is of great ecological importance, and our current understanding of soil bacterial community elevational patterns in mountain grasslands remains relatively limited.…”

Section: Introductionmentioning

confidence: 99%

Distinct soil bacterial patterns along narrow and broad elevational gradients in the grassland of Mt. Tianshan, China

Liu

Cheng

et al. 2022

Sci Rep

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Bacteria are essential regulators of soil biogeochemical cycles. While several studies of bacterial elevational patterns have been performed in recent years, the drivers of these patterns remain incompletely understood. To clarify bacterial distribution patterns and diversity across narrow- and broad-scale elevational gradients, we collected soil samples from 22 sites in the grasslands of Mt. Tianshan in China along three elevational transects and the overall elevation transect: (1) 6 sites at elevations of 1047–1587 m, (2) 8 sites at 876–3070 m, and (3) 8 sites at 1602–2110 m. The bacterial community diversity across the overall elevation transects exhibited a hump-like pattern, whereas consistent patterns were not observed in the separate elevational transects. The bacterial community composition at the phylum level differed across the transects and elevation sites. The Actinobacteria was the most abundant phylum overall (41.76%) but showed clear variations in the different transects. Furthermore, heatmap analyses revealed that both pH and mean annual temperature (MAT) were significantly (P < 0.05) correlated with bacterial community composition as well as the dominant bacterial phyla, classes, and genera. These findings provide an inclusive view of bacterial community structures in relation to the environmental factors of the different elevational patterns.

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Elevational is the main factor controlling the soil microbial community structure in alpine tundra of the Changbai Mountain

Abstract: Different rhizosphere soil bacterial communities at similar elevations. The results of the ANOVA showed the rhizosphere soil properties of different plants at the same altitude were different significantly.

Cited by 54 publications

References 89 publications

Soil Bacterial Community in the Multiple Cropping System Increased Grain Yield Within 40 Cultivation Years

Soil Bacterial Community in the Multiple Cropping System Increased Grain Yield Within 40 Cultivation Years

Local adaptation and spatiotemporal patterns of genetic diversity revealed by repeated sampling of Caenorhabditis elegans across the Hawaiian Islands

Distinct soil bacterial patterns along narrow and broad elevational gradients in the grassland of Mt. Tianshan, China

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