Nitrogen-cycling microbial diversity and function in tiankengs at different evolutionary stages

CATENA, Journal Year: 2025, Volume and Issue: 254, P. 108969 - 108969

Published: March 23, 2025

Language: Английский

Combined effects of acidification and warming on soil denitrification and microbial community

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: April 2, 2025

In light of the challenges posed by contemporary global warming and soil acidification, respective effects pH temperature on microbiome functions have been explored. However, combined influence acidification denitrification active microbial communities are still unclear. Here, we conducted a microcosm experiment to investigate influences increasing microbes such as bacteria eukaryotic microbes. Denitrification rate in were detected using C2H2 inhibition method. The results showed that Shannon index bacterial exhibited significant enhancement response whereas their community patterns predominantly shaped pH. For micro-eukaryotic community, emerged main driver variations α-diversity, with MT group exhibiting significantly lower indices compared LT HT groups. Both exerted effect patterns. Additionally, was crucial factor influencing rates, negative correlation between within range 4.32-7.46 across all temperatures this study. Our findings highlighted impacts rates under warming, which provided an important scientific basis for agricultural production management environmental protection context climate warming.

Language: Английский

Potential Roles of Soil Viruses in Karst Forest Soil Carbon and Nitrogen Cycles

Forests, Journal Year: 2025, Volume and Issue: 16(5), P. 735 - 735

Published: April 25, 2025

Soil viruses, ubiquitous and abundant biological entities that are integral to microbial communities, exert pivotal impacts on ecosystem functionality, particularly within carbon (C) nitrogen (N) cycles, through intricate interactions with bacteria, archaea, fungi, other taxa. While their contributions soil dynamics increasingly elucidated, the specific roles of viruses in karst forest remain largely underexplored. Karst ecosystems (covering 15% global terrestrial surface) characterized by unique geological formations, thin patchy layers, high pH Ca2+, rapid hydrological dynamics, collectively fostering environmental conditions may shape viral ecology modulate C N cycling. This perspective synthesizes existing knowledge functions distinctive characteristics soil, proposing potential mechanisms which could influence cycling such fragile ecosystems. regulate cycles both directly indirectly via hosts, mainly including shaping community structure, mediating horizontal gene transfer metabolism, increasing availability alleviating nutrient limitations, promoting sequestration, mitigating climate change. work aims bridge biogeochemical providing insights into sustainable stewardship resilience. We delineate critical gaps propose future perspectives, advocating for targeted metagenomic long-term experimental studies diversity, virus–host-environment interactions, temporal dynamics. Specifically, we advocate following research priorities advance our understanding studies: (I) abundance, activity: characterizing activity forests using metagenomics complementary molecular approaches; (II) virus–host interactions: investigating between key taxa involved cycling; (III) impacts: quantifying lysis fluxes soil; (IV) modeling cycles: developing integrative models incorporate virus-mediated processes frameworks at different spatial scales. Such efforts essential validate hypothesized underlying mechanisms, offering a foundation nature-based solutions facilitate support ecological restoration vulnerable regions amid

Language: Английский