Article
Microbiology
Andrea K. Borsodi, Marton Mucsi, Gergely Krett, Attila Szabo, Tamas Felfoldi, Tibor Szili-Kovacs
Summary: The metabolic potential and taxonomic composition of microbiota in sodic soils are influenced by salinity and alkalinity, with alkali vegetation types primarily determining catabolic profiles. The diversity and activity of microbial communities in the Pannonian steppe soils are more impacted by alkali vegetation types compared to extreme aridity and moisture conditions.
Article
Microbiology
Anju Gautam, Gavin Lear, Gillian D. Lewis
Summary: By modeling temporal differences in stream bacterial communities, we were able to quantify the major environmental drivers of stream bacterial population dynamics, including cyclical seasonal variation and sporadic bloom events. Our models showed that bloom events and seasonal episodes significantly modify biofilm bacterial populations, indicating the thriving of distinct microbial taxa during these periods. These findings provide insights into how temporal environmental changes affect community assembly and can guide the selection of appropriate statistical models for predicting future community responses to environmental change.
ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Biology
Fehmida Bibi, Esam Ibraheem Azhar
Summary: This study investigated the microbial diversity of two sponges and a coral sample from the Red Sea in Saudi Arabia using pyrosequencing. The results revealed that sponge H. caerulea had significantly high bacterial diversity and identified 17 different bacterial genera across the three samples.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Yu-Te Lin, William B. Whitman, David C. Coleman, Shih-Hao Jien, Hsueh-Ching Wang, Chih-Yu Chiu
Summary: The study found significant differences in bacterial community composition between coniferous forest and grassland soils at the treeline, with correlations to soil pH, organic C, and C/N. Historical vegetation types also had a significant impact on the abundance of certain bacterial groups.
Article
Environmental Sciences
Yueming Liang, Fujing Pan, Jiangming Ma, Zhangqi Yang, Peidong Yan
Summary: The study found significant differences in soil bacterial community diversity and structure among different stand ages, but no differences between two seasons. Soil bacterial community diversity increased with stand age. The dominant phyla in the soil bacterial community were Proteobacteria, Acidobacteria, and Actinobacteria. Changes in soil bacterial community structure were influenced by soil pH, available phosphorus content, and litter phosphorus content.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Review
Food Science & Technology
Muriel Gugger, Anne Boullie, Thierry Laurent
Summary: In celebration of Louis Pasteur's 200th birthday, this report focuses on cyanotoxins, other natural products, and bioactive compounds produced by cyanobacteria, a type of Gram-negative bacteria capable of photosynthesis. These microbes have significantly impacted the geochemistry and biology of Earth. The Pasteur Cultures of Cyanobacteria (PCC) collection contains preserved live cultures of pure strains, which have been instrumental in classifying cyanobacteria and studying their characteristics. The PCC strains' genetic diversity has facilitated the discovery of cyanotoxins, unknown natural products, and the understanding of biosynthetic pathways.
Article
Biotechnology & Applied Microbiology
L. R. Paniagua Voirol, G. Valsamakis, M. Yu, P. R. Johnston, M. Hilker
Summary: This study aimed to investigate the impact of DNA extraction kit and bacteria therein on the characterization of bacterial communities associated with butterfly samples. The results showed that the signal intensity of bacteria varied in untreated butterflies depending on the extraction kit and primers used. A significantly greater alpha diversity was observed in AB-treated butterflies, indicating a bias in results due to bacterial contaminants in the kit.
JOURNAL OF APPLIED MICROBIOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Qianwen Liu, Shixi Wang, Kun Li, Jun Qiao, Yinshan Guo, Zhendong Liu, Xiuwu Guo
Summary: Soil microorganisms are crucial for the long-term sustainability of agricultural ecosystems, yet continuous grapevine replanting can disrupt the stability of soil microbial communities. Short-term grapevine replanting increased the relative abundance of potential beneficial bacteria and harmful fungi in rhizosphere soils, with available nitrogen and available potassium being the primary soil factors related to the shift of bacterial and fungal communities.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Microbiology
Zhijia Cui, Ran Li, Fan Li, Ling Jin, Haixu Wu, Chunya Cheng, Yi Ma, Zhenheng Wang, Yuanyuan Wang
Summary: This study investigated the rhizosphere bacterial community structure of Fritillaria przewalskii, a Chinese endemic medicinal plant, and found that bacterial communities varied with different soil environments and were associated with soil properties and plant characteristics. Proteobacteria, Bacteroidetes, and Acidobacteria were the dominant bacteria, and they were all related to nutrient cycling. Soil properties, especially pH, had the greatest impact on the bacterial community. The results of this study provide theoretical guidance and new insights for the cultivation and domestication of F. przewalskii.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Anna-Lena Hoeger, Carola Griehl, Matthias Noll
Summary: This study sheds light on the close connection between algae, associated bacterial microbiomes, and emerging contaminants in photobioreactor systems. It investigated the development of microbiomes of different freshwater microalgae species and the impact of parasitic infection on bacterial diversity.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Microbiology
Ekaterina K. Zharkova, Anna A. Vankova, Olga V. Selitskaya, Elena L. Malankina, Natalya V. Drenova, Alena D. Zhelezova, Vitaliy K. Khlyustov, Sergey L. Belopukhov, Aleksey V. Zhevnerov, Ludmila A. Sviridova, Tatiana N. Fomina, Andrey V. Kozlov
Summary: This study analyzed the rhizosphere effect of oregano, peppermint, thyme, creeping thyme, and sage, and found that the highest bacterial diversity was in the rhizosphere of sage, while the lowest bacterial abundance was in the rhizosphere of oregano.
Article
Microbiology
Litao Guo, Chao Tang, Chunsheng Gao, Zhimin Li, Yi Cheng, Jia Chen, Tuhong Wang, Jianping Xu
Summary: In this study, the microbial communities in Psylliodes attenuata samples from nine industrial hemp production sites in China were analyzed using DNA metabarcoding. The results showed significant differences in the bacterial and fungal community structure among these populations. The most common bacterial genera were Rickettsia, Wolbachia, and Candidatus_Brownia, while the most common fungal genera were Cladosporium, Cutaneotrichosporon, and Aspergillus. These findings provide insights into potential biocontrol techniques against this pest.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Fisheries
Qiong Zhao, Fengxing Xie, Fengfeng Zhang, Ke Zhou, Haibo Sun, Yujie Zhao, Qian Yang
Summary: This study investigated the structural and functional diversity of bacterial communities in water and sediment samples from shrimp ponds using high-throughput sequencing and community level physiological profiling (CLPP) methods. The results showed that the genetic and functional diversity of microbial communities in sediment was significantly higher than that in water. Actinobacteria, Verrucomicrobia, and Firmicutes were positively correlated with carbon source utilization in water samples, while Proteobacteria showed a significant positive correlation in sediment. Furthermore, there was a significant correlation between predicted function and actual metabolic profiles in both water and sediment samples.
Article
Food Science & Technology
Lu Jiang, Lu Liu, Hongyan Chen, Wei Zhang, Laping He, Xuefeng Zeng
Summary: This study investigated the bacterial community structure and metabolite effects during the fermentation of Yu jiangsuan(YJS) using autochthonous starter cultures. The results showed that interactions between bacterial genera accelerated the fermentation process and increased bacterial diversity and metabolite production. Carbohydrate and amino acid metabolism played a vital role in metabolite formation.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Article
Ecology
Damian W. Rivett, Shorok B. Mombrikotb, Hyun S. Gweon, Thomas Bell, Christopher van der Gast
Summary: This study investigates the mechanisms behind the species-time relationship by sampling bacterial communities in tree-holes over the course of a year, finding an inverse relationship between turnover rates and island size. The findings should renew interest in STR-based patterns and processes, as they are currently understudied compared to SARs.
Article
Biology
David Sala, Vincent Grossi, Helene Agogue, Christophe Leboulanger, Didier Jezequel, Gerard Sarazin, Ingrid Antheaume, Cecile Bernard, Magali Ader, Mylene Hugoni
Summary: Studies on microbial communities in aphotic euxinic waters are limited compared to those in euxinic photic zones. Lake Dziani Dzaha, a tropical, saline, alkaline crater lake, has been identified as a modern analog of Proterozoic Oceans. The presence of aphotic haloclines and euxinia strongly influences the molecular composition of organic matter and microbial diversity in the lake.
Article
Soil Science
Tharaniya Srikanthasamy, Sebastien Barot, Fulgence K. Koffi, Kevin Tambosco, Yoan Marcangeli, David Carmignac, Aya Brigitte N'Dri, Jonathan Gervaix, Julie Leloup, Xavier Le Roux, Jean-Christophe Lata
Summary: In this study, the researchers examined the influence of climate seasonality and plant cover type on the abundances and transcription levels of bacterial and archaeal nitrifiers in a savanna ecosystem for the first time. They found that different tree and grass species had contrasting effects on nitrification, with higher enzyme activity and abundances of bacterial nitrifiers under trees and lower enzyme activity and abundances of bacterial nitrifiers under grasses compared to bare soil. The study also revealed seasonal variations in the abundances and transcriptional activities of nitrifiers, with archaeal nitrifiers likely dominating nitrification in these savanna soils.
Article
Soil Science
Louis J. P. Dufour, Anke M. Herrmann, Julie Leloup, Cedric Przybylski, Ludovic Foti, Luc Abbadie, Naoise Nunan
Summary: This study investigates how the properties of readily available organic matter affect the metabolic activity of microbial communities in soils. The findings suggest that microbial communities preferentially use organic matter with a high potential energetic return on investment.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Microbiology
Juliette Gaetan, Sebastien Halary, Maxime Millet, Cecile Bernard, Charlotte Duval, Sahima Hamlaoui, Amandine Hecquet, Muriel Gugger, Benjamin Marie, Neha Mehta, David Moreira, Feriel Skouri-Panet, Cynthia Travert, Elodie Duprat, Julie Leloup, Karim Benzerara
Summary: The formation of intracellular amorphous calcium carbonates (iACC) by Microcystis is common in freshwater ecosystems, and has implications for understanding the biological function of Microcystis and the Calcium geochemical cycle in freshwater environments.
ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Microbiology
Jinhong He, Xiangping Tan, Yanxia Nie, Lei Ma, Juxiu Liu, Xiankai Lu, Jiangming Mo, Julie Leloup, Naoise Nunan, Qing Ye, Weijun Shen
Summary: Atmospheric nitrogen (N) deposition is a global environmental problem that poses a threat to biodiversity and ecosystem functioning. Understanding the responses of abundant and rare soil bacterial taxa to anthropogenic N enrichment is crucial for managing N-polluted forest soils. Our study reveals distinct responses of abundant and rare bacteria to N addition, with higher sensitivity in rare taxa and broader environmental acclimation in abundant taxa.
MICROBIOLOGY SPECTRUM
(2023)
Article
Marine & Freshwater Biology
Imen Louati, Naoise Nunan, Kevin Tambosco, Cecile Bernard, Jean-Francois Humbert, Julie Leloup
Summary: This study investigated the correlation between bacterioplankton composition and phytoplankton dynamics in a shallow lake known for recurrent cyanobacterial blooms. Changes in bacterial community occurred before the development of the phytoplankton bloom, suggesting that the environmental changes were first sensed by the bacterial community. The study also highlighted the relevance of spatial organization within different microenvironments in shaping these communities.
Article
Biochemistry & Molecular Biology
Maxime Bruto, Philippe M. Oger, Patrice Got, Cecile Bernard, Delphine Melayah, Lilian A. Cloarec, Charlotte Duval, Arthur Escalas, Sebastien Duperron, Ludivine Guigard, Christophe Leboulanger, Magali Ader, Gerard Sarazin, Didier Jezequel, Helene Agogue, Marc Troussellier, Mylene Hugoni
Summary: Microbial diversity in the phycosphere, the region surrounding phytoplankton cells, was explored in a hypersaline, hyperalkaline ecosystem. Contrasting compositions of archaeal communities were found in the phycosphere of different phytoplanktonic species, indicating the influence of phytoplankton on surrounding archaea. Some archaeal groups were enriched in the phycosphere, possibly due to the physical impact of phytoplanktonic species.
Article
Environmental Sciences
Huibin Wang, Sebastien Halary, Charlotte Duval, Cecile Bernard, Marc Troussellier, Mehdi A. Beniddir, Jean-Michel Brunel, Andrea Castaldi, Flore Caudal, Claire Gollety, Coralie Martin, Marie-Lise Bourguet-Kondracki, Sebastien Duperron
Summary: This study evaluated the occurrence of cyanobacteria in biofilms collected from mangroves in Mayotte and isolated and characterized some of the strains. Some of these strains were among the most abundant cyanobacteria present in biofilms. While no significant antimicrobial and cytotoxic activities were observed, some strains exhibited anthelmintic and antibiofilm activities that warrant further investigation.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Ecology
Sebastien Halary, Sebastien Duperron, Sandra Kim Tiam, Charlotte Duval, Cecile Bernard, Benjamin Marie
Summary: Cyanobacteria play a significant role in global primary production but can also cause harmful events called blooms. However, the study of genetic diversity in bloom development and the ecology of harmful cyanobacteria has been underestimated. A comparative study of Aphanizomenon gracile revealed extensive heterogeneity in gene contents, suggesting the potential for essential metabolite exchanges among individuals in a bloom.
ISME COMMUNICATIONS
(2023)
Article
Environmental Sciences
Eric Kouame Yao, Mathias Koffi Ahoutou, Mark Olokotum, Sahima Hamlaoui, Emilie Lance, Benjamin Marie, Cecile Bernard, Rosine Yao Djeha, Catherine Quiblier, Jean-Francois Humbert, Julien Kalpy Coulibaly
Summary: Compared with northern countries, there is limited data available on cyanobacterial blooms and their potential toxicity in lakes and ponds in sub-Saharan countries. To address this knowledge gap, a 17-month monitoring of a freshwater ecosystem, Lagoon Aghien in Ivory Coast, was conducted. The study found high richness and diversity of cyanobacterial community, with microcystins being the only detected cyanotoxin.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Biotechnology & Applied Microbiology
Theotime Roussel, Sebastien Halary, Charlotte Duval, Berenice Piquet, Jean-Paul Cadoret, Lea Vernes, Cecile Bernard, Benjamin Marie
Summary: This study confirmed that Spirulina belongs to the genus Limnospira, and discovered that L. platensis has a large intra-specific diversity.
JOURNAL OF APPLIED MICROBIOLOGY
(2023)