Urban non-point source pollutants increases the biotic homogenization of the structure and function in river microbiome DOI Creative Commons

Haizhou Li,

Xiangyu Fan, Zhiwei He

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Aug. 21, 2023

Abstract Urbanization significantly impacts the community structure of aquatic organisms and poses a major threat to river biodiversity. However, extent which urbanization is linked homogenization microbial communities underlying mechanisms remains poorly understood. In this study, we investigated bacterial archaeal from cities neighboring natural rivers across network located in Qinling Mountains, Northwest China, further alpha beta diversity patterns influenced by urbanization. We found that influx urban non-point source pollutants created eutrophic condition, enhanced populations. Meanwhile, rapid tends decrease overall habitat heterogeneity, imposed stronger homogeneous selection caused biotic homogenization. The can be attributed modulating generalist/specialist species invasion nonnative species. For instance, had greater proportion fast-growing bacteria, algae, nitrifiers, PAH-degrading pathogens, fecal bacteria antibiotic-resistant than ecosystems. Overall, leads more uniform biosphere, causing extinction unique local subsequent regional pool.

Language: Английский

Diversity and potential host-interactions of viruses inhabiting deep-sea seamount sediments DOI Creative Commons

Meishun Yu,

Menghui Zhang, Runying Zeng

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: April 15, 2024

Abstract Seamounts are globally distributed across the oceans and form one of major oceanic biomes. Here, we utilized combined analyses bulk metagenome virome to study viral communities in seamount sediments western Pacific Ocean. Phylogenetic protein-sharing network demonstrate extensive diversity previously unknown clades. Inference virus-host linkages uncovers interactions between viruses dominant prokaryote lineages, suggests that play significant roles carbon, sulfur, nitrogen cycling by compensating or augmenting host metabolisms. Moreover, temperate predicted be prevalent sediments, which tend carry auxiliary metabolic genes for survivability. Intriguingly, geographical features seamounts likely compromise connectivity thus contribute high divergence genetic spaces populations seamounts. Altogether, these findings provides knowledge essential understanding biogeography ecological widespread

Language: Английский

Citations

17
Comprehensive profiles of sulfur cycling microbial communities along a mangrove sediment depth DOI
Lu Qian,

Bozhi Yan,

Jiayin Zhou

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 944, P. 173961 - 173961

Published: June 13, 2024

Language: Английский

Citations

6
Microbial necromass contribution to soil carbon storage via community assembly processes DOI
Xuefeng Zhu, Kaikai Min, Kai Feng

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 951, P. 175749 - 175749

Published: Aug. 24, 2024

Language: Английский

Citations

5
Bacterial community and antibiotic resistance genes assembly processes were shaped by different mechanisms in the deep-sea basins of the Western Pacific Ocean DOI

Qi Jin,

Jialin Tang, Lilan Zhang

et al.

Environmental Pollution, Journal Year: 2024, Volume and Issue: 363, P. 125214 - 125214

Published: Oct. 30, 2024

Language: Английский

Citations

5
Rhizosphere-associated bacterial and fungal communities of two maize hybrids under increased nitrogen fertilization DOI Creative Commons
Qing Liu,

Hongcui Dai,

Cheng Hao

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: March 3, 2025

Introduction The selection and application of nitrogen-efficient maize hybrids have significantly bolstered contemporary food security. Nevertheless, the effects heightened nitrogen fertilizer demand these crops on composition assembly soil microbial communities in agricultural production require further elucidation. Methods In this study, four managements rhizosphere bacterial fungal community assembly, co-occurrence network function two (LD981 DH605) were compared. Results discussion Findings revealed that was primarily shaped by deterministic processes, while stochastic processes played a pivotal role assembly. N-efficient hybrid DH605 had more stable than N-inefficient LD981. At N3 (130 g N/m 2 ) rate, networks most complex but unstable, followed N2 (87 ), N0 (0 N1 (43 rates. Excessive rate (N3) increased relative abundance denitrification genes nirK norB enriching nitrogen-related genus such as Nitrolancea Nitrosospira . It led to an increase pathways cysteine methionine metabolism pyruvate metabolism. management practices (i.e. N rates) ultimately directly or indirectly reflected functions. Our findings illustrate relationship between appropriate crop measures optimizing promoting use, which is necessary for sustainable

Language: Английский

Citations

0
Deterministic process controlling the prokaryotic community assembly across seamounts along in the Yap and Mariana trenches DOI Creative Commons
Yue Zhang, Hongmei Jing

Ecological Indicators, Journal Year: 2024, Volume and Issue: 158, P. 111538 - 111538

Published: Jan. 1, 2024

Seamounts are geographically isolated, substrate-rich and highly heterogenetic habitats, where little is known about the population shifts assembly mechanism of local microbial communities. In this study, microbes in sediments across a series seamounts along island arc Yap Mariana trenches were investigated via high-throughput sequencing. Clear distance-decay distribution was revealed horizontal scale among different seamounts, vertical from summit to base seamounts. This biogeography mainly driven by deterministic process, although contribution stochastic process progressively increased addition, higher levels prokaryotic abundance, diversity, niche width than Challenger Deep observed as well, further proved deep oasis for microbes. Spatial heterogeneity community connectivity among/intra demonstrated might be shaped simultaneously hydrogeographic variables limitation ocean current dispersal. Overall, study contributed new insights into controlling assembly, provide future exploration ecological functions living extreme biosphere.

Language: Английский

Citations

3
Geographical distribution and driving force of microbial communities in the sediments of Diamantina and Kermadec trenches DOI Creative Commons
Yue Zhang, Hongmei Jing, Hao Liu

et al.

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: Nov. 18, 2024

The distinctive geological characteristics of hadal trenches are recognized to affect the construction and ecological role microbial communities; however, information on their population dynamics assembly processes remains limited. In this study, bacteria micro-eukaryotes in sediments Diamantina Kermadec were explored utilizing high-throughput sequencing. Compared Trench, significantly lower levels bacterial micro-eukaryotic biodiversity ( p < 0.01), gene copy number 0.05), heterotrophic/parasitic proportions 0.05) detected which also exhibited a low community complexity based network analysis. Within each trench, no obvious shifts observed along trench axis. Microbial communities both showed clear distance–decay distributions, mainly driven by stochastic processes. This study provided fresh perspectives mechanism deep-sea trenches. Studies diversified trophic states microbes would contribute an improved understanding functions diversification extreme biosphere.

Language: Английский

Citations

1
Biogeographic patterns and community assembly mechanisms of bacterial community in the upper seawater of seamounts and non-seamounts in the Eastern Indian Ocean DOI
Yaqian Jiao, Shanshan Yang,

Wenya Bao

et al.

Applied and Environmental Microbiology, Journal Year: 2024, Volume and Issue: 90(9)

Published: Aug. 16, 2024

ABSTRACT Seamounts are widespread underwater topographic features in the ocean that exert an influential role shaping microbial biogeographic distribution. Nevertheless, research on differences distribution between seamount and non-seamount upper water column is still lacking, particularly Indian Ocean where studies limited. In present study, a total of 45 seawater samples were collected from (5–200 m) seamounts (HS) non-seamounts (E87 transect) regions Eastern (EIO) for analysis patterns community assembly processes. The results indicated bacterial diversity did not differ significantly HS E87 transect regions; however, composition was different. Additionally, diversity, composition, as well structure more affected by depth than region. Community tended to increase with region, while it decrease A distance decay also demonstrated communities influenced environmental distances geographic distances. regions, at different depths, stochastic processes, dispersal limitation, found be predominant. These findings enhance our comprehension characteristics EIO offer insights into processes varying depths. IMPORTANCE By comparing areas, we provide valuable biogeography. finding had significant impact region underscores importance considering vertical stratification when examining distributions. Moreover, dominance governing across both areas offers critical implications mechanisms underlying these dynamic environments. This study expands current knowledge lays groundwork further investigations complex interactions oceanographic features, gradients, dynamics Ocean.

Language: Английский

Citations

0
Urban non-point source pollutants increases the biotic homogenization of the structure and function in river microbiome DOI Creative Commons

Haizhou Li,

Xiangyu Fan, Zhiwei He

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Aug. 21, 2023

Abstract Urbanization significantly impacts the community structure of aquatic organisms and poses a major threat to river biodiversity. However, extent which urbanization is linked homogenization microbial communities underlying mechanisms remains poorly understood. In this study, we investigated bacterial archaeal from cities neighboring natural rivers across network located in Qinling Mountains, Northwest China, further alpha beta diversity patterns influenced by urbanization. We found that influx urban non-point source pollutants created eutrophic condition, enhanced populations. Meanwhile, rapid tends decrease overall habitat heterogeneity, imposed stronger homogeneous selection caused biotic homogenization. The can be attributed modulating generalist/specialist species invasion nonnative species. For instance, had greater proportion fast-growing bacteria, algae, nitrifiers, PAH-degrading pathogens, fecal bacteria antibiotic-resistant than ecosystems. Overall, leads more uniform biosphere, causing extinction unique local subsequent regional pool.

Language: Английский

Citations

0