Biomarkers evidence shows a preferential occlusion of microbial necromass in mineral-associated and not particle organic matter

Geoderma, Год журнала: 2024, Номер 450, С. 117030 - 117030

Опубликована: Сен. 16, 2024

Язык: Английский

---

Co-occurrence of per- and polyfluoroalkyl substances, heavy metals and polycyclic aromatic hydrocarbons and their composite impacts on microbial consortium in soil: A field study

Pedosphere, Год журнала: 2023, Номер 34(4), С. 736 - 748

Опубликована: Июнь 2, 2023

Язык: Английский

---

Elevational changes in soil properties shaping fungal community assemblages in terrestrial forest

The Science of The Total Environment, Год журнала: 2023, Номер 900, С. 165840 - 165840

Опубликована: Июль 27, 2023

Язык: Английский

---

Plant compartment niche is more important in structuring the fungal community associated with alpine herbs in the subnival belt of the Qiangyong glacier than plant species

Symbiosis, Год журнала: 2024, Номер 92(2), С. 289 - 304

Опубликована: Март 1, 2024

Abstract The plant compartment niche (i.e., the host provides various microhabitats for microbial community, such as rhizosphere, root endosphere, leaf and phylloplane) species play a significant role in shaping plant-associated community assembly. However, mycobiome associated with alpine herbs subnival belt research, little work has been done to assess contribution of niches fungal variation reveal differentiation communities. In this study, we quantified communities rhizosphere soil, endospheres, endospheres three ( Rheum spiciforme , Eriophyton wallichii Rhodiola bupleuroides ) Qiangyong glacier using high-throughput DNA sequencing. Our results revealed that diversity composition was predominantly shaped by rather than species. Rhizosphere soil exhibited highest level breadth, while lowest observed endosphere. significantly differed across different niches. Fungal co-occurrence networks endosphere were more complex showed higher centrality connectedness soil. Moreover, also found deterministic process governed assembly, exerts stronger selection pressure on endophytes comparison endophytes. are primary potential contributors endophytes, compared Further, Pleosporaceae Davidiellaceae, Chaetomiaceae enriched overlapped two (root endosphere). Collectively, study reveals primarily affected Additionally, diversity, composition, pattern, assembly differentiation. These provide novel insight into ecological interactions plants harsh environments.

Язык: Английский

---

Close linkage between available and microbial biomass phosphorus in the rhizosphere of alpine coniferous forests along an altitudinal gradient

Rhizosphere, Год журнала: 2024, Номер 30, С. 100904 - 100904

Опубликована: Май 22, 2024

Язык: Английский

---

Aridity and soil properties drive the shrub-herb interactions along drought gradient in desert grassland in Inner Mongolia

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Июнь 19, 2024

Purpose Environmental conditions can control the structure and composition of plant communities by changing direction intensity plant-plant interactions. However, how drought soil properties drive change shrub-herb interaction in shrub-encroachment desert steppe Inner Mongolia remains unclear. Methods We explored changes along aridity gradient, analyzed index affect interaction. Field collection samples soils from northeast to southwest was undertaken were for biomass, diversity, PH, organic matter other elements. Results The results show that positive (RII > 0) increased at first then decreased range 0.54 1.85 (drought degree gradually). Aridity (AI), (SOM) total phosphorus (TP) main factors driving AI indirectly affected through TP, facilitation shrubs on herbs coverage biomass with increase TP. SOM directly shrub-herbs interaction, herb diversity decreases SOM. Conclusion Overall, although interactions respond differently environmental factors. This study underscores effects vegetation restoration steppe, increasing precipitation, TP content, reducing content enhance shrub accelerate ecological degraded steppe.

Язык: Английский

---

Fractions of soil phosphorus mediated by rhizospheric phoD‐harbouring bacteria of deep‐rooted desert species are determined by fine‐root traits

Functional Ecology, Год журнала: 2024, Номер 38(10), С. 2300 - 2315

Опубликована: Авг. 12, 2024

Abstract Soil phosphorus (P) availability is a crucial factor determining primary productivity in terrestrial ecosystem. Plant functional traits and microbes under P‐deficient conditions can respond positively to increase soil P bioavailability. Whether and/or how the fine‐root (FRTs) of deep‐rooted desert species affect rhizosphere bulk community phoD ‐harbouring bacteria thus improve P, however, remains unclear. We conducted three‐year artificial outdoor pot experiment supply using Alhagi sparsifolia Shap. (hereafter ) address this gap. Fine‐root samples from 1‐ 3‐year‐old seedlings rhizospheres were collected. High‐throughput sequencing, sequential extraction root system scanning used determine community, Hedley‐P fractions FRTs. surface area (RSA), specific length, foliar Mn concentration (indicating quantities carboxylates that are released) acid phosphatase (APase) activity significantly higher no‐P compared with high‐P conditions. APase was by 27%, but remarkably lower 26%, 3‐ than 1‐year‐old seedlings. The rhizospheric concentrations labile moderately inorganic organic condition 5%, 11%, 10% 21% higher, respectively, RSA dominated predictors for seedlings, whereas predictor communities water content, as most dominant driving variation notably could not be ignored. FRTs main factors directly determined influenced availability, concentration. importance morphological gradually increased plants grew. Overall, our results emphasize significance effect on bioavailability P. Read free Plain Language Summary article Journal blog.

Язык: Английский

---

Close but different: Metabarcoding analyses reveal different microbial communities in ancient Roman nymphaea

International Biodeterioration & Biodegradation, Год журнала: 2023, Номер 181, С. 105619 - 105619

Опубликована: Май 9, 2023

Язык: Английский

---

The diversity and abundance of bacterial and fungal communities in the rhizosphere of Cathaya argyrophylla are affected by soil physicochemical properties

Frontiers in Microbiology, Год журнала: 2023, Номер 14

Опубликована: Июнь 12, 2023

Cathaya argyrophylla is an ancient Pinaceae species endemic to China that listed on the IUCN Red List. Although C. ectomycorrhizal plant, relationship between its rhizospheric soil microbial community and properties related natural habitat remains unknown. High-throughput sequencing of bacterial 16S rRNA genes fungal ITS region sequences was used survey at four spatially distributed points in Hunan Province, China, functional profiles were predicted using PICRUSt2 FUNGuild. The dominant phyla included Proteobacteria , Acidobacteria Actinobacteria Chloroflexi genus Acidothermus . Basidiomycota Ascomycota while Russula genus. Soil main factors leading changes rhizosphere communities, with nitrogen being driver communities. metabolic capacities communities identify differences their profiles, including amino acid transport metabolism, energy production conversion, presence fungi, saprotrophs symbiotrophs. These findings illuminate ecology provide a scientific basis for screening microorganisms are suitable vegetation restoration reconstruction this important threatened species.

Язык: Английский

---

Topography shapes the carbon allocation patterns of alpine forests

The Science of The Total Environment, Год журнала: 2023, Номер 898, С. 165542 - 165542

Опубликована: Июль 16, 2023

Язык: Английский

---