Impact of soil moisture on microbial diversity and their enzyme activity on agricultural soil DOI Creative Commons
Kalisa Bogati, Piotr Sewerniak, Maciej Walczak

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 7, 2024

Abstract In this study, the impact of a two-month drought stress on microbial abundance, their enzymes and functional diversity in four agricultural soil (Gniewkowo (G), Lulkowo (L), Nieszawa (N), Suchatówka (S) sites from Poland) was investigated during summer season. The physicochemical parameters (pH, organic carbon (C), calcium carbonate (CaCO 3 ), total nitrogen nitrate (NO - ammonium (NH 4 + phosphorus (P), available phosphate (P 2 O 5 )), specific biological (microbial CLPP, (phosphatases (acid; ACP alkaline; AKP), dehydrogenase (DH), urease (UR)) were conducted samples study. data compared between zero-week (T0) 8 th week (T8) time intervals. enumeration showed higher bacterial populations (496.63 x 10 CFU g -1 dry soil) to actinomycetes (13.43 −1 soil), lowest fungal population (67.68 at T8. strong positive significance G, N S On contrary, most L negative with utilization amines only, by end experiment. Overall, population, correlation moisture content all sites. findings our study indicate that activities regions can be modified mere two months drought.

Language: Английский

Harnessing co-evolutionary interactions between plants and Streptomyces to combat drought stress DOI
Hongwei Liu, Jiayu Li, Brajesh K. Singh

et al.

Nature Plants, Journal Year: 2024, Volume and Issue: 10(8), P. 1159 - 1171

Published: July 24, 2024

Language: Английский

Citations

11
Plant–microbiome interactions and their impacts on plant adaptation to climate change DOI Open Access
Qing Zeng, Hang‐Wei Hu, An‐Hui Ge

et al.

Journal of Integrative Plant Biology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

ABSTRACT Plants have co‐evolved with a wide range of microbial communities over hundreds millions years, this has drastically influenced their adaptation to biotic and abiotic stress. The rapid development multi‐omics approaches greatly improved our understanding the diversity, composition, functions plant microbiomes, but how global climate change affects assembly microbiomes roles in regulating host changing environmental conditions is not fully known. In review, we summarize recent advancements community responses factors such as elevated CO 2 levels, warming, drought. We further delineate research trends hotspots plant–microbiome interactions context change, key mechanisms by which influence climate. propose that future urgently needed unravel impact genes signal molecules modulated on communities, elucidate evolutionary response plant–microbe at level, engineer synthetic mitigate effects fitness.

Language: Английский

Citations

0
Geodiversity as a Driver of Soil Microbial Community Diversity and Adaptation in a Mediterranean Landscape DOI Creative Commons
Samuel Pelacani, Maria Teresa Ceccherini, Francesco Barbadori

et al.

Land, Journal Year: 2025, Volume and Issue: 14(3), P. 583 - 583

Published: March 10, 2025

Extreme meteorological events and anthropogenic influences determine important variations in microbial community composition. To know the extent of these variations, it is necessary to delve deeper into geogenic factors be considered as a baseline. The purpose this study was assess effect topographic characteristics soil geochemistry on spatial distribution three Actinobacteria genera molecular biomarkers landforms belonging Mediterranean environments. Given role that play ecosystem, we performed model Rubrobacter, Gaiella, Microlunatus investigated fungi/bacteria ratio machine learning (ML)-based framework. Variable importance provided insight controlling factor geomicrobial distribution. predicted generally follows constraints, mostly altitude. Rubrobacter related slope aspect lithium; wetness index (TWI) normalized difference water (NDWI), well ratio; Gaiella flow path metals. Our results provide new information adaptation areas show potential using ML frameworks for prediction OTUs

Language: Английский

Citations

0
Prolonged water limitation shifts the soil microbiome from copiotrophic to oligotrophic lifestyles in Scots pine mesocosms DOI Creative Commons

Astrid C. H. Jaeger,

Martin Hartmann, Rafaela Feola Conz

et al.

Environmental Microbiology Reports, Journal Year: 2023, Volume and Issue: 16(1)

Published: Nov. 22, 2023

Abstract Reductions in soil moisture due to prolonged episodes of drought can potentially affect whole forest ecosystems, including microorganisms and their functions. We investigated how the composition microbial communities is affected by water limitation. In a mesocosm experiment with Scots pine saplings natural maintained at different levels content over 2 years, we assessed shifts prokaryotic fungal related these changes plant development properties. Prolonged limitation induced progressive community composition. The dissimilarity between increased time regardless recurrent seasons, while were less Under low contents, desiccation‐tolerant groups outcompeted adapted, lifestyle taxa shifted from copiotrophic oligotrophic. While abundance saprotrophic ligninolytic alongside an accumulation dead material, symbiotic nutrient‐cycling decreased, likely impairing trees. Overall, appeared continuously alter structure communities, pointing potential loss critical functions provided microbiome.

Language: Английский

Citations

7
Drought-induced tree mortality in Scots pine mesocosms promotes changes in soil microbial communities and trophic groups DOI Creative Commons

Astrid C. H. Jaeger,

Martin Hartmann, Rafaela Feola Conz

et al.

Applied Soil Ecology, Journal Year: 2023, Volume and Issue: 194, P. 105198 - 105198

Published: Nov. 21, 2023

Increased tree mortality related to water limitation is documented for various species at different sites globally. Nevertheless, our understanding of effects on soil microbial communities remains scarce. Therefore, we conducted a mesocosm experiment with young Scots pine saplings and natural forest differing drought legacies follow changes in during mortality. were completely deprived the until they died. Shifts assessed by metabarcoding parallel measurements vitality physicochemical properties. Drought history influenced rate which trees died, although high individual differences observed. Tree death was accompanied reduced stomatal conductance, discoloring needles, increased defoliation, shrinkage stem diameter. Soil NO3− concentrations after death, potentially through diminished plant uptake nitrification. Microbial abundance community composition affected legacy. Copiotrophic bacterial taxa decreased mortality, while oligotrophic increased, probably slowing down carbon turnover. Fungal saprotrophs decreased, symbiotrophs, such as ectomycorrhizal (ECM) fungi, abundance, facultative saprothrophy survival strategy initial phase dying. Overall, results indicate that drought-induced promotes prokaryotic fungal communities, affecting processes ecosystems.

Language: Английский

Citations

4
Aggregate Size Mediated the Changes in Soil Microbial Communities After the Afforestation of a Former Dryland in Northwestern China DOI Creative Commons
Deming Zhang, Ling Bai, Wei Wang

et al.

Diversity, Journal Year: 2024, Volume and Issue: 16(11), P. 696 - 696

Published: Nov. 13, 2024

Although the afforestation of former arable lands is a common global land-use conversion, its impact on soil microbial communities at aggregate scale has not been adequately addressed. In this study, samples were categorized into large macroaggregates (LM, >2 mm), small (SM, 2–0.25 and microaggregates (MI, <0.25 mm) to assess changes in composition, diversity, network complexity, stability within aggregates after dryland northwestern China. The results revealed that enhanced relative abundance Actinobacteriota, Chloroflexi, Ascomycota, Mortierellomycota aggregates, suggesting these phyla may have greater advantages post-afforestation. Shannon–Wiener Pielou indices for bacterial showed no significant differences between types across all fractions. However, alpha diversity fungal LM SM significantly increased afforestation. Bray–Curtis dissimilarity altered beta MI but had minimal three topological features cross-kingdom co-occurrence networks generally exhibited decreasing trend post-afforestation, indicating simplification community structure. reduced robustness fractions implies also destabilized structure macroaggregates. composition correlated closely with carbon nitrogen contents, especially two macroaggregate linkages suggests improved resource conditions could be key driver behind shifts following Our findings indicate ecology can better understood by fractionation.

Language: Английский

Citations

1
Impact of soil moisture on microbial diversity and their enzyme activity on agricultural soil DOI Creative Commons
Kalisa Bogati, Piotr Sewerniak, Maciej Walczak

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 7, 2024

Abstract In this study, the impact of a two-month drought stress on microbial abundance, their enzymes and functional diversity in four agricultural soil (Gniewkowo (G), Lulkowo (L), Nieszawa (N), Suchatówka (S) sites from Poland) was investigated during summer season. The physicochemical parameters (pH, organic carbon (C), calcium carbonate (CaCO 3 ), total nitrogen nitrate (NO - ammonium (NH 4 + phosphorus (P), available phosphate (P 2 O 5 )), specific biological (microbial CLPP, (phosphatases (acid; ACP alkaline; AKP), dehydrogenase (DH), urease (UR)) were conducted samples study. data compared between zero-week (T0) 8 th week (T8) time intervals. enumeration showed higher bacterial populations (496.63 x 10 CFU g -1 dry soil) to actinomycetes (13.43 −1 soil), lowest fungal population (67.68 at T8. strong positive significance G, N S On contrary, most L negative with utilization amines only, by end experiment. Overall, population, correlation moisture content all sites. findings our study indicate that activities regions can be modified mere two months drought.

Language: Английский

Citations

0