Distribution Pattern and Assembly Process of Fungal Communities Along Altitude Gradient in Sediments of the Yellow River Basin DOI Creative Commons

Kang Ling Fang,

Guoce Xu, Xin Chen

и другие.

Journal of Fungi, Год журнала: 2025, Номер 11(3), С. 214 - 214

Опубликована: Март 11, 2025

Microorganisms have a profound impact on the stability and ecological health of aquatic environments. Fungi, as important components river ecosystems, play critical roles decomposers symbionts. A comprehensive understanding mechanisms underlying fungal community assembly is essential for effective conservation management ecosystems. However, distribution patterns process communities along elevation gradients in sediments remain poorly understood. In this study, ITS amplicon sequencing, neutral model, null model were employed to analyze processes altitudinal gradient Yellow River. The results indicated that Ascomycota (47.79%) Basidiomycota (15.68%) identified dominant phyla sediments, collectively accounting 63.47% total relative abundance community. three different gradients, diversity (Shannon) showed gradually decreasing trend with increasing altitude. co-line networks exhibited positive interactions had more complex compact Tibetan Plateau area (YRA). Environmental factors played an role shaping structure communities, lead (Pb), nitrogen (TN), silt, organic carbon (TOC) being main driving changes structure, contributing 15.5%, 12.3%, 10.7%, 10.2%, respectively. process, deterministic found dominate, homogenizing selection most (69.66%). These research help us understand assembly, also provide scientific basis biodiversity rational use biological resources.

Язык: Английский

Mechanisms Driving Seasonal Succession and Community Assembly in Sediment Microbial Communities Across the Dali River Basin, the Loess Plateau, China DOI Creative Commons
Xin Chen, Jing Li,

Guoce Xu

и другие.

Microorganisms, Год журнала: 2025, Номер 13(2), С. 319 - 319

Опубликована: Фев. 1, 2025

Microorganisms are instrumental in river ecosystems and participate biogeochemical cycles. It is thought that dynamic hydrological processes rivers influence microbial community assembly, but the seasonal succession assembly of sediments on Loess Plateau remain unclear. This study used high-throughput sequencing technology (16S ITS) neutral model to analyze associated with communities Dali River, a tributary Yellow River Plateau. The results showed sediment bacterial fungal diversity indexes non-flood season were 1.03–3.15 times greater than those flood season. There obvious variations between seasons microorganisms. similarities among all, abundant, rare decreased as geographical distance increased. Proteobacteria (52.5–99.6%) Ascomycota (22.0–34.2%) primary phyla communities. Sediment ammonia nitrogen, water temperature, organic carbon significantly affected (p < 0.05) structure microorganism ecological networks for had complex topological parameters. was driven by deterministic processes, while dominated stochastic processes. These expanded understanding about characteristics provided insights into factors driving networks.

Язык: Английский

Процитировано

0
Distribution Pattern and Assembly Process of Fungal Communities Along Altitude Gradient in Sediments of the Yellow River Basin DOI Creative Commons

Kang Ling Fang,

Guoce Xu, Xin Chen

и другие.

Journal of Fungi, Год журнала: 2025, Номер 11(3), С. 214 - 214

Опубликована: Март 11, 2025

Microorganisms have a profound impact on the stability and ecological health of aquatic environments. Fungi, as important components river ecosystems, play critical roles decomposers symbionts. A comprehensive understanding mechanisms underlying fungal community assembly is essential for effective conservation management ecosystems. However, distribution patterns process communities along elevation gradients in sediments remain poorly understood. In this study, ITS amplicon sequencing, neutral model, null model were employed to analyze processes altitudinal gradient Yellow River. The results indicated that Ascomycota (47.79%) Basidiomycota (15.68%) identified dominant phyla sediments, collectively accounting 63.47% total relative abundance community. three different gradients, diversity (Shannon) showed gradually decreasing trend with increasing altitude. co-line networks exhibited positive interactions had more complex compact Tibetan Plateau area (YRA). Environmental factors played an role shaping structure communities, lead (Pb), nitrogen (TN), silt, organic carbon (TOC) being main driving changes structure, contributing 15.5%, 12.3%, 10.7%, 10.2%, respectively. process, deterministic found dominate, homogenizing selection most (69.66%). These research help us understand assembly, also provide scientific basis biodiversity rational use biological resources.

Язык: Английский

Процитировано

0