Development of a digital droplet PCR approach for the quantification of soil micro‐organisms involved in atmospheric CO2 fixation DOI Creative Commons
Marie Le Geay, Kyle Mayers, Martin Küttim

et al.

Environmental Microbiology, Journal Year: 2024, Volume and Issue: 26(6)

Published: June 1, 2024

Abstract Carbon‐fixing micro‐organisms (CFMs) play a pivotal role in soil carbon cycling, contributing to uptake and sequestration through various metabolic pathways. Despite their importance, accurately quantifying the absolute abundance of these soils has been challenging. This study used digital droplet polymerase chain reaction (ddPCR) approach measure key emerging CFMs pathways fen bog at different depths, ranging from 0 15 cm. We targeted total prokaryotes, oxygenic phototrophs, aerobic anoxygenic phototrophic bacteria chemoautotrophs, optimizing conditions achieve quantification genes. Our results revealed that phototrophs were most abundant CFMs, making up 15% prokaryotic abundance. They followed by chemoautotrophs 10% 9%. observed higher gene concentrations than bog. There also variations depth, which differed between for all findings underscore peatlands, challenging previous estimates relied solely on microbial dioxide fixation assessments. Incorporating is essential comprehensive understanding contributions processes. sheds light complex mechanisms functioning peatlands.

Language: Английский

Pharmacologic improvement of CFTR function rapidly decreases sputum pathogen density, but lung infections generally persist DOI Creative Commons
David P. Nichols,

Sarah J. Morgan,

M. Skalland

et al.

Journal of Clinical Investigation, Journal Year: 2023, Volume and Issue: 133(10)

Published: March 28, 2023

BACKGROUND. Lung infections are among the most consequential manifestations of cystic fibrosis (CF) and associated with reduced lung function shortened survival. Drugs called CFTR modulators improve activity dysfunctional transmembrane conductance regulator (CFTR) channels, which is physiological defect causing CF. However, it unclear how improved affects CF infections.

Language: Английский

Citations

119

Soil and Phytomicrobiome for Plant Disease Suppression and Management under Climate Change: A Review DOI Creative Commons
Wen Chen, Dixi Modi, Adeline Picot

et al.

Plants, Journal Year: 2023, Volume and Issue: 12(14), P. 2736 - 2736

Published: July 23, 2023

The phytomicrobiome plays a crucial role in soil and ecosystem health, encompassing both beneficial members providing critical goods services pathogens threatening food safety security. potential benefits of harnessing the power for plant disease suppression management are indisputable interest agriculture but also forestry landscaping. Indeed, diseases can be mitigated by situ manipulations resident microorganisms through agronomic practices (such as minimum tillage, crop rotation, cover cropping, organic mulching, etc.) well applying microbial inoculants. However, numerous challenges, such lack standardized methods microbiome analysis difficulty translating research findings into practical applications at stake. Moreover, climate change is affecting distribution, abundance, virulence many pathogens, while altering functioning, further compounding strategies. Here, we will first review literature demonstrating how agricultural have been found effective promoting health enhancing suppressiveness mitigation shift phytomicrobiome. Challenges barriers to identification use then discussed before focusing on impacts functioning outcome.

Language: Английский

Citations

49

High speciation rate of niche specialists in hot springs DOI Creative Commons
Qing He, Shang Wang, Kai Feng

et al.

The ISME Journal, Journal Year: 2023, Volume and Issue: 17(8), P. 1303 - 1314

Published: June 7, 2023

Abstract Ecological and evolutionary processes simultaneously regulate microbial diversity, but the their driving forces remain largely unexplored. Here we investigated ecological characteristics of microbiota in hot springs spanning a broad temperature range (54.8–80 °C) by sequencing 16S rRNA genes. Our results demonstrated that niche specialists generalists are embedded complex interaction dynamics. On thermal tolerance axis, (T) sensitive (at specific temperature) versus T-resistant least five temperatures) species were characterized different breadth, community abundance dispersal potential, consequently differing potential trajectory. The niche-specialized T-sensitive experienced strong barriers, leading to completely shift high fitness low abundant communities at each (“home niche”), such trade-offs thus reinforced peak performance, as evidenced speciation across temperatures increasing diversification with temperature. In contrast, advantageous expansion poor local shown wide breadth extinction, indicating these “jack-of-all-trades, master-of-none”. Despite differences, evolutionarily interacted. Specifically, continuous transition from insured exclusion probability relatively constant level temperatures. co-evolution co-adaptation line red queen theory. Collectively, our findings demonstrate could alleviate environmental-filtering-induced negative effect on diversity.

Language: Английский

Citations

32

Establishment and validation of a dual qPCR method for the detection of carbapenem-resistant Acinetobacter baumannii in bloodstream infections DOI Creative Commons

Yu Lin,

Xiaoxia Kou, Ze Liu

et al.

Frontiers in Cellular and Infection Microbiology, Journal Year: 2025, Volume and Issue: 15

Published: Feb. 26, 2025

Bloodstream infections(BSIs) caused by carbapenem-resistant Acinetobacter baumannii (CRAB) have a high mortality rate due to the levels of drug resistance. There is an urgent need establish sensitive and accurate detection method rapidly detect CRAB in BSIs. A new was developed based on fluorescence quantitative PCR (qPCR) targeting specific region 16sRNA OXA-23 gene from CRAB. The parameters were evaluated optimized. This qPCR further applied AB 30 clinical specimens. established this study showed specificity. successfully differentiated baumannii(A. baumanii) 26 other common pathogens BSIs identify carbapenem resistance gene. shows limit (LOD) 3×10-3 ng/μL, displays good linear relationship between excellent repeatability (CV ≤2%). results for specimens using are complete agreement with those blood culture susceptibility test. has strong specificity, wide range, repeatability, lower LOD than (Non-fluorescence quantification). provides technical support early diagnosis

Language: Английский

Citations

1

Population ecology of entomopathogenic nematodes: Bridging past insights and future applications for sustainable agriculture DOI
Rubén Blanco-Pérez, Ernesto San‐Blas,

Monique J. Rivera

et al.

Journal of Invertebrate Pathology, Journal Year: 2025, Volume and Issue: unknown, P. 108313 - 108313

Published: March 1, 2025

Language: Английский

Citations

1

Research Progress on Diseases Caused by the Soil-Borne Fungal Pathogen Rhizoctonia solani in Alfalfa DOI Creative Commons

Muhammad Abdullah Akber,

Xiangling Fang

Agronomy, Journal Year: 2024, Volume and Issue: 14(7), P. 1483 - 1483

Published: July 9, 2024

Rhizoctonia solani is a soil-borne fungal species with worldwide distribution and poses serious threats to wide range of economically important crops such as grain forage crops. This pathogen has survival capabilities within plants soil, giving rise sclerotia persisting for several months or years. Alfalfa (Medicago sativa) the most widely grown crop in China worldwide. The unique characteristics alfalfa, excellent quality, ruminant desirability, substantial biomass output, distinguish it from other fodder crops, also known “Queen Forages”. However, production alfalfa seriously affected by R. solani, yield losses 20% 60% globally. review firstly summarizes diseases seedling damping-off, root rot, crown cankers, stem blight, rot caused mechanism this pathogen. techniques detection quantification soils, well management through host resistance, cultural practices, fungicides, biological control, were then overviewed. provides scientific knowledge enable researchers efficiently manage production.

Language: Английский

Citations

6

Environment and microbiome drive different microbial traits and functions in the macroscale soil organic carbon cycle DOI Creative Commons
Daniel Wasner,

Joerg Schnecker,

Xingguo Han

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(8)

Published: Aug. 1, 2024

Soil microbial traits and functions play a central role in soil organic carbon (SOC) dynamics. However, at the macroscale (regional to global) it is still unresolved whether (i) specific environmental attributes (e.g., climate, geology, types) or (ii) community composition drive key directly. To address this knowledge gap, we used 33 grassland topsoils (0-10 cm) from geoclimatic gradient Chile. First, incubated soils for 1 week favorable standardized conditions quantified wide range of such as biomass (MBC), enzyme kinetics, respiration, growth rates well use efficiency (CUE). Second, characterized climatic physicochemical properties bacterial fungal soils. We then applied regression analysis investigate how strongly measured were linked with setting versus composition. show that (predominantly amount matter) determined patterns MBC along gradient, which turn explained respiration rates. normalized (i.e., growth) more than attributes. Notably, both followed distinct trends related different parts community, resulted strong effects on CUE. conclude even macroscale, CUE result physiologically decoupled aspects metabolism, partially by The affect functions, therefore factors need be considered context SOC

Language: Английский

Citations

5

Applying improved ddPCR to reliable quantification of MPXV in clinical settings DOI Creative Commons

Chudan Liang,

Huiqin Yang, Xiaofeng Yang

et al.

Microbiology Spectrum, Journal Year: 2024, Volume and Issue: 12(7)

Published: May 17, 2024

ABSTRACT Monkeypox virus (MPXV) poses a global health threat. Droplet digital PCR (ddPCR) holds potential as an accurate diagnostic tool for clinical microbiology. However, there is limited literature on the applicability of ddPCR in settings. In this study, features patients with MPXV during initial outbreak China June 2023 were reviewed, and optimized method dilution and/or inhibitor removal was developed to enhance detection efficiency. Eighty-two samples tested from nine different specimen types, including feces, urine, pharyngeal swabs, anal saliva, herpes fluid, crust, semen, viral load each quantified. A comparative analysis performed qPCR assess sensitivity specificity investigate characteristics infection by analyzing loads specimens. Consequently, common gastrointestinal symptoms observed MPXV. The demonstrated relatively high quantification materials, limit 0.1 copies/μL. This particularly evident low-concentration like whole blood, urine. greater accuracy compared normal qPCR, area under curve (AUC) 0.939. Except crust samples, specimens gradually decreased disease progressed. Virus levels feces swabs kept rate at stage post-symptom onset, may be suitable diagnosis continuous monitoring IMPORTANCE technique proved sensitive valuable accurately quantifying various types. findings provided insights into necessary pre-treatment protocols potentially sample types collection. Therefore, such results can aid comprehending usage

Language: Английский

Citations

4

Review of Methods for Studying Viruses in the Environment and Organisms DOI Creative Commons
Xinyue Wang, Tianjiao Ma, Zhiyuan Chen

et al.

Viruses, Journal Year: 2025, Volume and Issue: 17(1), P. 86 - 86

Published: Jan. 11, 2025

Recent decades have seen growing attention on viruses in the environment and their potential impacts as a result of global epidemics. Due to diversity viral species along with complexity environmental host factors, virus extraction detection methods become key for study ecology. This review systematically summarises extracting detecting pathogens from different samples (e.g., soil, water, faeces, air) biological plants, animals) existing studies, comparing similarities differences, applicability, well advantages disadvantages each method. Additionally, this discusses future directions research field. The aim is provide theoretical foundation technical reference ecology research, facilitating further exploration applications

Language: Английский

Citations

0

Research Trends and Development Dynamics of qPCR-based Biomarkers: A Comprehensive Bibliometric Analysis DOI
Li Liu, Benrong Mu, Zhou Ya

et al.

Molecular Biotechnology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Language: Английский

Citations

0