Article
Environmental Sciences
Chi-Wen Lin, Shu-Hui Liu, Cheng-Fang Wu, Shih-Hsien Chang
Summary: Studies have shown that toxic sulfolane can be found in groundwater near refinery and natural gas plants. The addition of a low dose of H2O2 and nutrient can enhance the removal of sulfolane and COD during bioremediation. Furthermore, the combination of H2O2 and nutrient can improve COD removal and reduce toxicity in effluents.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Multidisciplinary Sciences
Van Thanh Nguyen, Koki Maeda, Yukiko Nishimura, Trinh Thi Hong Nguyen, Kinh Van La, Dien Duc Nguyen, Tomoyuki Suzuki
Summary: Livestock manure drying in Vietnam was found to release methane and nitrous oxide, with emission factors of 0.295 +/- 0.078 g kg(-1) volatile solids and 0.132 +/- 0.136 g N2O-N kg(-1) N-initial, respectively. The relative abundance of methanogens decreased during the drying process, while no significant nitrous oxide emission was observed.
Article
Environmental Sciences
Jowenna X. F. Sim, Barbara Drigo, Casey L. Doolette, Sotirios Vasileiadis, Dimitrios G. Karpouzas, Enzo Lombi
Summary: This study evaluated the effects of different pesticides on soil carbon cycling related enzymatic activities and absolute abundance of functional genes, as well as the changes in cellulolytic and chitinolytic microorganisms and the total microbial community composition. The results suggest that pesticide application may have a negative impact on soil carbon cycle and the stability of soil organic matter and structure.
Article
Soil Science
Yang Ouyang, Danmei Chen, Ying Fu, Weiling Shi, Tony Provin, Arum Han, Erin van Shaik, James E. Samuel, Paul de Figueiredo, Aifen Zhou, Jizhong Zhou
Summary: In this study, an optimized cell extraction protocol was developed, including physical blending, Tween 20 treatment, and centrifugation with 80% Nycodenz, which showed the highest cell viability and yield among the extraction methods tested. The effect of soil storage conditions on the yield, viability, and community composition of soil extractable cells was assessed, with 4 degrees C short-term storage found to be suitable for highly efficient viable cell extraction.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Environmental Sciences
Chinyere Christiana Egbe, Ganiyu Oladunjoye Oyetibo, Matthew Olusoji Ilori
Summary: The study reveals that OCPs-impacted soil is contaminated with 15 OCPs and suffers from nitrate and phosphorous deficiencies, with 10 of the OCPs posing severe ecological risks. Key microbiomes in the impacted soil include Enterobacteriaceae and Mortierellaceae, with the low abundance of Nitrospirae species and extinction of Glomeromycota suggesting serious toxicological consequences of the OCPs.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Agronomy
Kalisa Amarsingh Bogati, Patrycja Golinska, Piotr Sewerniak, Aleksandra Burkowska-But, Maciej Walczak
Summary: Prolonged drought stress has a significant impact on the structure and activity of soil microbial communities. A study in Poland investigated the effects of short-term drought on microbial community structure, enzymes, and metabolic diversity in four agricultural soils. The study found that drought conditions resulted in significant alterations in soil microbial communities, enzyme activities, and metabolic diversity.
Article
Environmental Sciences
Himadri Bose, Rajendra Prasad Sahu, Pinaki Sar
Summary: Paddy soil is a crucial ecosystem that supports diverse microbial communities essential for ecosystem sustainability and crop yield. However, there is inadequate research on the composition and functions of microbial communities in arsenic-contaminated soil.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
Misbah Naz, Zhicong Dai, Sajid Hussain, Muhammad Tariq, Subhan Danish, Irfan Ullah Khan, Shanshan Qi, Daolin Du
Summary: Soil microbial community plays a crucial role in the remediation of polluted soils, and soil pH has a significant impact on microbial activity. However, the exact relationship between soil pH and microbial diversity is still unclear. Environmental factors and heavy metal content also influence microbial activity and bacterial diversity.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Agronomy
Jie Yang, Zhiyun Liu, Mingyi Zhang, Xiaolong Zhu, Mingyi Wang, Xingfeng Xu, Guangchao Liu
Summary: Soil proteinase and proteinase-producing microbial communities play a crucial role in soil fertility and health. This study investigated the characteristics and activities of sea rice soils, as well as the microbial communities using culture-independent and culture-dependent methods. Sea rice soils showed lower salinity, higher organic matter content, and increased diversity of proteinase-producing bacteria compared to non-rice soils. The findings provided new insights into the degradation of soil organic nitrogen in coastal agricultural regions.
Article
Environmental Sciences
Shamali De Silva, Andrew S. Ball, Esmaeil Shahsavari, Demidu Indrapala, Suzie M. Reichman
Summary: This study examined the impact of motor vehicle emissions on soil and microbial diversity, finding that bacterial diversity was higher than control sites while fungal diversity decreased with exposure time. Bacterial diversity increased across all road types, while fungal diversity decreased, potentially affecting the ecosystem functionality and health of roadside soils.
ENVIRONMENTAL POLLUTION
(2021)
Article
Soil Science
Ihsan Muhammad, Jun Wang, Upendra M. Sainju, Shaohong Zhang, Fazhu Zhao, Ahmad Khan
Summary: Cover crops enhance soil microbial community biomass and affect community structure compared to no cover crops, with responses varying depending on soil type, climatic conditions, and cover crop types. Incorporating cover crop residue into the soil can increase certain microbial parameters but decrease others.
Article
Soil Science
Sarah Shawver, Carl Wepking, Satoshi Ishii, Michael S. Strickland, Brian D. Badgley
Summary: The study found that repeated application of manure from cattle administered antibiotics can impact soil microbial community structure and abundance of antibiotic resistance genes for up to three years. Cattle manure treated with antibiotics had a more significant effect on soil bacterial communities compared to manure from antibiotic-free cattle, but had minimal impact on fungal communities.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Biotechnology & Applied Microbiology
Yu Zheng, Guan Bin Lv, Kun Chen, Qibin Yu, Ben Niu, Jing Jiang, Guifeng Liu
Summary: Rhizosphere microorganisms are important for maintaining soil ecological functions. This study investigates the impact of genetically modified trees on soil enzyme activities and composition of rhizosphere microorganisms. The results show that transgenic activities have effects on root exudates, rhizosphere soil enzyme activities and soil microbial community composition. However, further research is needed to understand the long-term effects.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Microbiology
Philips O. Akinwole, Jinjun Kan, Louis A. Kaplan, Robert H. Findlay
Summary: Spatial and temporal variability are key attributes of sedimentary microbial communities, with larger distances having more dominant spatial effects on beta-diversity. Microeukaryotic photoautotrophs play a key role in structuring bacterial communities on streambed sediments. The study confirmed distinct microbial biogeography for headwater stream communities and highlighted the influence of environmental heterogeneity and geographical distance on microbial composition and spatial distribution.
MICROBIOLOGY SPECTRUM
(2021)
Article
Microbiology
Loredana Canfora, Malgorzata Tartanus, Andrea Manfredini, Cezary Tkaczuk, Anna Majchrowska-Safaryan, Eligio Malusa
Summary: The impact of Beauveria brongniartii and Beauveria bassiana on soil bacterial and fungal communities was evaluated using T-RFLP analysis. The results showed that these fungi only had a transient and limited effect on the soil microbial community, although some changes in the structure and frequency of bacterial and fungal OTUs were observed.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Julia Zoehrer, Maraike Probst, Sabrina Dumfort, Hannes Lenz, Ralf Pecenka, Heribert Insam, Judith Ascher-Jenull
Summary: One of the most challenging aspects of using wood chips as a renewable energy source is the loss of biomass during storage. The study found that shifts in microbial community composition occurred mainly at the beginning of the storage experiment, with little changes later on. Although the addition of alkaline stabilization agent Ca(OH)(2) altered the physicochemical properties of wood chips, it did not prevent loss of biomass.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2021)
Article
Microbiology
Dominika Gorniakova, Miroslav Petricek, David Kahoun, Roman Grabic, Tomas Zelenka, Alica Chronakova, Katerina Petrickova
Summary: A cryptic manumycin-type biosynthetic gene cluster was activated through genetic means, resulting in the production of multiple novel manumycin-type compounds for future comparative activity assays. Heterologously produced compounds were identical to those found after final activation of the BGC in the original strain, demonstrating the integrity of the cloned BGC.
Article
Biotechnology & Applied Microbiology
Terezia Horvathova, Vladimir Sustr, Alica Chronakova, Stanislava Semanova, Kristina Lang, Carsten Dietrich, Tomas Hubacek, Masoud M. Ardestani, Ana C. Lara, Andreas Brune, Miloslav Simek
Summary: Physicochemical gut conditions and the distribution of symbiotic ciliates are important factors determining methane emission in millipedes.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Environmental Sciences
Michele Freppaz, Mark W. Williams, Jacopo Gabrieli, Roberta Gorra, Ilaria Mania, Judith Ascher-Jenull, Markus Egli, Luisella Celi
Summary: Researchers discovered a large amount of organic-rich mineral debris in the Monte Rosa Massif in Italy, which may have originated from microbes, and could also be influenced by anthropogenic or natural factors. These deposits may serve as energy and nutrient sources in recently deglaciated areas, emphasizing the need to better understand the processes underlying their formation and evolution.
JOURNAL OF MOUNTAIN SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Magdalena Nagler, Sabine Marie Podmirseg, Judith Ascher-Jenull, Daniela Sint, Michael Traugott
Summary: This article reviews different fractions of environmental DNA (eDNA) and describes how to extract them from environmental samples. It also presents a four-scenario concept to enhance the spatial and temporal resolution of eDNA-based monitoring. The article highlights the importance of choosing the appropriate eDNA fractions to prevent misinterpretation of biodiversity data. Lastly, future research directions for fraction-specific analyses of eDNA targeting micro- and macro-organisms are proposed to fully explore the potential of eDNA-based studies.
MOLECULAR ECOLOGY RESOURCES
(2022)
Article
Geosciences, Multidisciplinary
G. Santini, A. G. Ruggiero, M. T. Ceccherini, L. Santorufo, V. Memoli, G. Pietramellara, A. Giarra, M. Trifuoggi, R. Barile, G. Maisto, A. De Marco, G. Di Natale
Summary: The Mediterranean area is a fragile ecosystem with a high level of biodiversity, and fires have a significant impact on the soil microbial community and biogeochemical cycles. This study evaluated the effects of fires on the microbial populations involved in the nitrogen cycle in soils with different vegetation cover. The results showed that fires slightly affected the soil abiotic properties but significantly increased the abundance of eubacteria, nitrifiers, and denitrifiers.
Article
Soil Science
Margherita Santoni, Leonardo Verdi, Shamina Imran Pathan, Marco Napoli, Anna Dalla Marta, Francesca Romana Dani, Gaio Cesare Pacini, Maria Teresa Ceccherini
Summary: This study compared the effects of organic and conventional farming systems on microbial biomass, activity, soil CO2 emission, and available nitrogen forms. The results showed that organic farming had more active and abundant microbial biomass, with fungi being more active than bacteria. Organic farming also had higher bacterial richness and lower levels of NO3-.
SOIL USE AND MANAGEMENT
(2023)
Article
Multidisciplinary Sciences
Lucie Kotrbova, Ana Catalina Lara, Erika Corretto, Josef Scharfen, Vit Ulmann, Katefina PetfiZkova, Alica Chronakova
Summary: Despite being overlooked in clinical laboratories, streptomycetes are increasingly recognized for their occurrence in diseases and potential pathogenicity. This study identified and evaluated the antibiotic susceptibility profile of 84 clinical isolates of Streptomyces from the Czech Republic. The establishment of valid disk diffusion breakpoints for antibiotic susceptibility testing of Streptomyces and the species diversity in clinical specimens were important findings.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Dominika Chmolowska, Alica Chronakova, Mohammad Bahram, Szymon Zubek, Leho Tedersoo
Summary: To preserve biodiversity and recycle land, a 13,000 m(2) turf was translocated from a built-up area to an abandoned quarry. The study examined the stability of soil ecosystem and changes in microbial communities before and after the translocation. The results showed that turf block translocation can preserve diversity, but cutting and dryer conditions during the translocation can lead to functional changes in microbial communities.
LAND DEGRADATION & DEVELOPMENT
(2023)
Article
Ecology
Puspendu Sardar, Vladimir Sustr, Alica Chronakova, Frantisek Lorenc
Summary: Millipedes play a crucial role in decomposing soil organic matter, with their gut microbiota playing a key role in lignocellulose decomposition, while endogenous enzymes primarily handle digestion.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Article
Biology
Svetlana Kisidayova, Nikola Scholcova, Katarina Mihalikova, Zora Varadyova, Peter Pristas, Stanislava Weisskopf, Tomas Chrudimsky, Alica Chronakova, Miloslav Simek, Vladimir Sustr
Summary: This study describes the growth requirements, fermentation pattern, and hydrolytic enzymatic activities of anaerobic ciliates collected from the hindgut of the millipede Archispirostreptus gigas. Molecular analysis revealed the presence of Nyctotherus velox and a newly identified species, N. archispirostreptae n. sp., in the millipede hindgut. N. velox could grow in vitro using various plant polysaccharides or without polysaccharides, with starch being the preferred substrate. The hydrolytic enzyme activities of N. velox contribute to the fermentation of plant polysaccharides in the millipede gut.
Article
Biochemistry & Molecular Biology
Jan Bobek, Eliska Filipova, Natalie Bergman, Matous Cihak, Miroslav Petricek, Ana Catalina Lara, Vaclav Kristufek, Melinda Megyes, Theresa Wurzer, Alica Chronakova, Katerina Petrickova
Summary: Streptomyces are of great interest in the pharmaceutical industry due to their production of secondary metabolites with antibacterial and antifungal properties. This study examined the production of hemolytic compounds in different strains of Streptomyces and found that the ability to produce cytolytic compounds is an intrinsic feature of the bacteria in the soil environment, which could serve as a virulence factor when colonizing host organisms. The study also reviewed the literature on hemolytic metabolites produced by Streptomyces.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Multidisciplinary Sciences
Puspendu Sardar, Vladimir Sustr, Alica Chronakova, Frantisek Lorenc, Lucie Faktorova
Summary: In this study, the transcriptome of a tropical millipede was analyzed to explore the composition and function of its gut microbiota. It was found that the microbiota played a crucial role in essential amino acid biosynthesis, short-chain fatty acid metabolism, and fermentation in the millipede holobiont.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Studies
Garima Gupta, Sangeeta Paul, Sachidanand Singh, Giacomo Pietramellara, Shamina Imran Pathan, Subhan Danish, Dilfuza Jabborova, Rahul Datta, Prabhat Nath Jha
Summary: This study investigated the structure and composition of Diazotrophic endophytic bacteria (DEB) community at different growth stages of field-grown pearl millet plants. The results showed that the bacterial diversity was highest during early and late growth stages. Pseudomonas aeruginosa was the most dominant endophyte, and the host plants displayed an attenuated defense response towards endophytic bacteria.
Article
Microbiology
Shamina Imran Pathan, Paola Arfaioli, Eren Taskin, Maria Teresa Ceccherini, Edoardo Puglisi, Giacomo Pietramellara
Summary: Environmental DNA is composed of intracellular (iDNA) and extracellular (eDNA) pools, with eDNA potentially distorting assessments of living microorganisms in soils. The distribution of microbial communities varies among different size-aggregates, and the uneven persistence and turnover of eDNA may cause biases in community analysis. Therefore, understanding the presence and impact of eDNA is important for accurate assessment of soil microbial communities.
FEMS MICROBIOLOGY LETTERS
(2021)
