Article
Environmental Sciences
Yu Huang, Jiewen Yang
Summary: This study confirms the production of various reactive oxygen species (ROS) through oxidation of phenolic acids (PCs) by laccase, which has a significant impact on the transformation of sulfamethoxazole (SMX) in soil and aquatic environments. The presence of gallic acid (GA) enhances the transformation of SMX by laccase, and the formation of ROS such as semiquinones radical (SQ(center dot-)), superoxide anion radical (O2(center dot-)), hydrogen peroxide (H2O2), hydroxyl radical (center dot OH), and singlet oxygen (O-1(2)) is confirmed. The dissolved O-2 plays a fundamental role in the formation of SQ(center dot-), which initiates chain reactions for the generation of other ROS. The transformation pathways of SMX include the breaking of S-N bond, cleavage of oxazole ring, electrophilic substitution, Michael addition, and condensation reactions. The presence of electron-withdrawing substitution groups on the benzene ring of PCs and the less stability of SQ(center dot-) are believed to favor the transformation of SMX. These results improve our understanding of the role of laccase-mediated oxidation of PCs in SMX transformation and have implications for the treatment of SMX pollution using laccase.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Maximilian Franta, Johannes Gramueller, Philipp Dullinger, Simon Kaltenberger, Dominik Horinek, Ruth M. Gschwind
Summary: Chiral phosphoric acids (CPA) have been widely used as catalysts in organocatalysis, but the selection of the optimal catalyst is still a challenge. This study identified two reaction pathways with inverse stereoselectivities in the CPA-catalyzed transfer hydrogenation of imines, involving either a single CPA or a hydrogen bond bridged dimer as the active catalyst. Through NMR measurements and DFT calculations, it was revealed that the dimeric pathway had stronger substrate activation via cooperativity. The temperature and catalyst loading could be adjusted to favor either pathway and enhance the enantiomeric excess (ee) of the product. This research is expected to have a significant impact on the optimization and prediction of CPA catalysis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Yingchao Zhang, Hongqiong Zhang, Xinwei Dong, Dongbei Yue, Ling Zhou
Summary: The impact of oxygen and/or MnO2 on the production of humic-like acids (HLAs) was investigated in this study. It was found that MnO2 and oxygen synergistically improved the production of HLAs and spectroscopic evidence was used to analyze the corresponding component evolution.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2022)
Article
Biochemistry & Molecular Biology
Aren Mirzakhanian, Michael Khoury, Donald E. Trujillo, Byoula Kim, Donnie Ca, Thomas Minehan
Summary: Different compounds bind to DNA in different ways, some to the major groove and some to the minor groove. The design of major groove binding ligands should consider the spatial structure of the compounds and the stereoelectronic interactions with DNA.
BIOORGANIC & MEDICINAL CHEMISTRY
(2023)
Article
Agronomy
Marcin Becher, Magdalena Banach-Szott, Agnieszka Godlewska
Summary: The study confirmed that spent mushroom substrates have the potential to enrich soils in organic matter, nitrogen, and carbonates. The qualitative properties of organic matter were found to be related to the high share of labile organic compounds. Humic acids displayed similar properties regardless of their origins.
Article
Environmental Sciences
Erika Jez, Carlo Bravo, Domen Lestan, Simon Gluhar, Ladislau Martin-Neto, Maria De Nobili, Marco Contin
Summary: The study found that CaEDTA remediation significantly decreased the free fraction of humic acids in soils contaminated with potentially toxic metals, while the bound fraction of humic acids and fulvic acids remained unchanged. Disturbance of intermolecular bonds during remediation affected the composition of the free humic acid fraction, confirming a selective removal of non-radical molecules such as carbohydrates while increasing the concentration of free radicals in acidic soil. The restoration of free humic fractions is likely to be a long-term process, indicating that CaEDTA soil washing is moderately conservative in terms of soil organic matter remediation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Agronomy
Evgeny Lodygin, Roman Vasilevich, Evgeny Abakumov
Summary: This paper examines the molecular composition of peat and humic substances in permafrost hummock peatlands in the forest tundra zone of northeastern Russia. The study finds that the structure and function of humic and fulvic acids are influenced by cryogenic processes, species composition, and the degree of peat decomposition. The predominance of humic acids and their low acidity make humic substances-based preparations highly promising for use as organic fertilizers.
Article
Green & Sustainable Science & Technology
Khanh Hoang Nguyen, Van-Duong Dao, Thi Thuy Huong Ngo, Thi Hanh Tien Nguyen, Quoc Tuan Nguyen, Thanh Thao Le
Summary: An alginate/pectin anode containing immobilized laccase is prepared for the electroenzymatic oxidation system, showing a much higher BPA removal efficiency compared to the control system without immobilized laccase. The study also demonstrates the accelerating effect of humic acids on BPA degradation. Overall, this research highlights the potential of laccase-immobilized bioelectrodes for efficient BPA removal.
CLEAN-SOIL AIR WATER
(2022)
Article
Agronomy
Bozena Debska, Karol Kotwica, Magdalena Banach-Szott, Ewa Spychaj-Fabisiak, Erika Tobiasova
Summary: The study focused on the effects of long-term annual application of different types of soil fertility agents on soil fertility. The results showed that the use of manure and straw increased organic matter content, while the use of biostimulants increased carbon sequestration in humic acid molecules.
Article
Green & Sustainable Science & Technology
Jakub Bekier, Elzbieta Jamroz, Karolina Walenczak-Bekier, Martyna Uscila
Summary: In urban areas, human activities can result in the total destruction of natural soil layout and properties. This study aimed to determine the quantity and quality of soil organic matter (SOM) in the topsoil of Wroclaw's central area. The analysis included the fractional composition of SOM and humic substances (HS), as well as the elemental composition and spectroscopy of humic acids (HA). The findings showed the dominance of residual carbon and low-maturity HA in urban soils. Efforts should be made to transform organic matter into more mature and stable forms.
Article
Agronomy
Vyacheslav Polyakov, Alexey Lupachev, Stanislav Gubin, Evgeny Abakumov
Summary: The study aimed to evaluate the genesis and alteration of soil organic matter under the influence of tidal processes in coastal permafrost-affected soils, as well as to obtain previously unknown characteristics of the structural and elemental composition of different fractions of organic matter. It was found that humic acids extracted from the studied marsh soils accumulated up to 50% C and 4% N, and active processes of dehydrogenation were noted in the humic acids molecules, indicating a relatively low degree of aliphatic structure development.
Article
Environmental Sciences
Huan He, Yanting Lin, Xiaoxia Yang, Xintong Zhu, Wenxiao Xie, Chaochao Lai, Shanshan Yang, Zhe Zhang, Bin Huang, Xuejun Pan
Summary: 17alpha-ethinylestradiol (EE2) can cause serious harm to ecosystems and human health in natural waters. Dissolved organic matter (DOM) and iron minerals are commonly present in natural waters, affecting the half-life and transformation pathways of EE2. This study investigated the adsorption and degradation of EE2 on different iron minerals, and constructed a photo-Fenton system to simulate natural light conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Geosciences, Multidisciplinary
Ekaterina Filcheva, Mariana Hristova, Martin Haigh, Boika Malcheva, Maya Noustorova
Summary: Forestation has a significant impact on fostering soil development on opencast coal-mine spoil technosols, especially in terms of soil organic matter and microflora components.
Article
Agronomy
Miroslaw Kobierski, Magdalena Banach-Szott
Summary: This study aimed to determine the relationship between the organic matter properties of Fluvisols (arable soil and grassland) and nearby riverbank sediments, and found that the properties of organic matter in Fluvisols are influenced by the quantity and quality of organic matter transported in suspended matter during flood events in flood valleys. The current land-use type significantly impacted the properties of organic matter in Fluvisols.
Review
Multidisciplinary Sciences
Hailing Chu, Shunyao Li, Kai Sun, Youbin Si, Yanzheng Gao
Summary: This review discusses the potential of exolaccase-boosted humification in eliminating phenolic pollutants and producing artificial humic-like products. It compares the chemical properties of artificial humic-like products and natural humic substances. The agronomic effects of these reproducible artificial humic-like products are highlighted. The challenges and perspectives of exolaccase-boosted humification for practical applications are also discussed.
Article
Multidisciplinary Sciences
Liubov Trubitsina, Alexander Lisov, Oxana Belova, Ivan Trubitsin, Vladimir V. Demin, Andrey Konstantinov, Anna G. Zavarzina, Alexey A. Leontievsky
Article
Plant Sciences
Elisa Bellucci, Orlando Mario Aguilar, Saleh Alseekh, Kirstin Bett, Creola Brezeanu, Douglas Cook, Lucia de la Rosa, Massimo Delledonne, Denise F. Dostatny, Juan J. Ferreira, Valerie Geffroy, Sofia Ghitarrini, Magdalena Kroc, Shiv Kumar Agrawal, Giuseppina Logozzo, Mario Marino, Tristan Mary-Huard, Phil McClean, Vladimir Meglic, Tamara Messer, Frederic Muel, Laura Nanni, Kerstin Neumann, Filippo Servalli, Silvia Strajeru, Rajeev K. Varshney, Marta W. Vasconcelos, Massimo Zaccardelli, Aleksei Zavarzin, Elena Bitocchi, Emanuele Frontoni, Alisdair R. Fernie, Tania Gioia, Andreas Graner, Luis Guasch, Lena Prochnow, Markus Oppermann, Karolina Susek, Maud Tenaillon, Roberto Papa
Summary: Food legumes play a crucial role in addressing various challenges in agriculture and society, contributing to climate change mitigation, agrobiodiversity conservation, sustainable agriculture, food security, and human health. Utilizing intelligent collections and genetic resource characterization can promote the conservation and utilization of food legumes, benefiting the healthy food system and sustainable agriculture.
Article
Multidisciplinary Sciences
Liubov Igorevna Trubitsina, Azat Vadimovich Abdullatypov, Anna Petrovna Larionova, Ivan Vasilyevich Trubitsin, Sergey Valerievich Alferov, Olga Nikolaevna Ponamoreva, Alexey Arkadyevich Leontievsky
Summary: A novel two-domain laccase CjSL was identified, cloned, expressed, and characterized in this study, showing excellent oxidation performance and stability, which holds potential value in biotechnological applications.
Article
Biotechnology & Applied Microbiology
A. V. Sviridov, T. V. Shushkova, D. O. Epiktetov, S. V. Tarlachkov, I. T. Ermakova, A. A. Leontievsky
Summary: The study found significant differences in the degradation of stable organophosphorus pollutants among different bacterial strains, with bacteria adapted to glyphosate showing higher consumption rates of other phosphonates. Additionally, the discovery of new highly efficient degrading strains provides new insights into the decomposition of glyphosate in soil. Further research on the microbial metabolism of glyphosate and the development of effective bioremediation preparations for soils contaminated with organophosphonates is discussed.
APPLIED BIOCHEMISTRY AND MICROBIOLOGY
(2021)
Article
Agronomy
Alexander Lisov, Oksana Belova, Anna Zavarzina, Andrey Konstantinov, Alexey Leontievsky
Summary: The biochemical stability of soil humus is crucial for soil quality, and fungi play a significant role in decomposing humic matter through oxidative enzymes. This study demonstrates that laccase produced by Mortierella elasson, a zygomycetous fungus, can effectively depolymerize humic acids in vitro. However, factors influencing laccase production in zygomycetes are still poorly understood.
Article
Microbiology
Maxim V. Vecherskii, David R. Khayrullin, Andrey M. Shadrin, Alexander Lisov, Anna G. Zavarzina, Alexey A. Zavarzin, Alexey A. Leontievsky
Summary: Lichen genomes provide valuable insights into the co-occurring microorganisms and metabolic processes in lichens.
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2022)
Article
Biochemistry & Molecular Biology
Alexander Lisov, Sergei S. Kiselev, Liubov Trubitsina, Oxana Belova, Zhanna Andreeva-Kovalevskaya, Ivan Trubitsin, Tatyana Shushkova, Alexey A. Leontievsky
Summary: Cellulophaga lytica is an anaerobic bacterium with genes encoding polysaccharide degrading enzymes. The enzyme ClGP has multiple activities in polysaccharide degradation and shows potential in the saccharification of brown algae.
BIOCHEMISTRY-MOSCOW
(2022)
Article
Soil Science
A. G. Zavarzina, V. V. Demin, O. Belova, A. A. Leontievsky, A. Lisov
Summary: The role of extracellular free-radical condensation reactions in the formation of humic substances is significant and plays an important role in the molecular composition of the liquid phase and organo-mineral complexes.
EURASIAN SOIL SCIENCE
(2022)
Article
Engineering, Biomedical
Anastasiya Snigireva, Oleg S. Morenkov, Yuri Y. Skarga, Alexander Lisov, Zoya A. Lisova, Alexey A. Leontievsky, Mariya A. Zhmurina, Viktoria S. Petrenko, Veronika V. Vrublevskaya
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2020)
Article
Microbiology
Sergey Tarlachkov, Dmitry O. Epiktetov, Alexey Sviridov, Tatyana Shushkova, Inna T. Ermakova, Alexey A. Leontievsky
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2020)
Article
Soil Science
C. Beraud, F. Piola, J. Gervaix, G. Meiffren, C. Creuze des Chatelliers, A. Delort, C. Boisselet, S. Poussineau, E. Lacroix, A. A. M. Cantarel
Summary: This study investigated the soil factors influencing the development of biological denitrification inhibition (BDI) and found that initial soil moisture, ammonium concentration, and the initial abundance of certain microbial genes play significant roles in BDI development. Additionally, the research highlighted the relevance of biotic factors in explaining BDI and proposed the use of procyanidin concentration from plant belowground system as a new proxy for measuring BDI intensity.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Yizhu Qiao, Tingting Wang, Qiwei Huang, Hanyue Guo, He Zhang, Qicheng Xu, Qirong Shen, Ning Ling
Summary: Soil microbial community coalescence, the mixing and interaction of microbial communities, has been found to enhance the stability and complexity of rhizobacterial networks, leading to improved plant health and biomass. This study investigated the effects of different degrees of bacterial community coalescence on plant disease resistance by mixing soils from healthy and diseased habitats for watermelon planting. The results showed that mixing in more healthy soil reduced the plant disease index and increased biomass by improving the stability and complexity of the rhizobacterial network. Core taxa Nitrospirillum and Singulisphaera were enriched in the rhizosphere from healthy soils and played important roles in disease suppression and regulating the positive cohesion and modularity of the networks. Overall, these findings provide insights into the potential mechanism of microbial community coalescence for improving plant microbial community function and suggest new tools for enhancing plant fitness via soil microbiota mixing.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Mengqiu He, Shending Chen, Lei Meng, Xiaoqian Dan, Wenjie Wang, Qinying Zhu, Zucong Cai, Jinbo Zhang, Pierfrancesco Nardi, Christoph Mueller
Summary: Maize genotypes directly affect gene expression and nitrogen uptake capacity. The feedback between maize genotypes and soil nitrogen transformations, as well as their regulations on nitrogen uptake capacity, have been studied. The findings suggest that maize genotypes play a central role in regulating these feedbacks, which are important for maize breeding and enhancing maize production.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Ke Shi, Jiahui Liao, Xiaoming Zou, Han Y. H. Chen, Manuel Delgado-Baquerizo, Zhengming Yan, Tingting Ren, Honghua Ruan
Summary: Through rewilding, microbial extracellular and cellular residues can continuously accumulate in soils and significantly contribute to soil organic carbon sequestration. Extracellular residues are mainly driven by fine root biomass, while cellular residues are mainly driven by soil nitrogen and organic carbon content.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Sensen Chen, Ying Teng, Yongming Luo, Eiko Kuramae, Wenjie Ren
Summary: This study comprehensively assesses the effects of NMs on the soil microbiome through a global meta-analysis. The results reveal significant negative impacts of NMs on soil microbial diversity, biomass, activity, and function. Metal NMs, especially Ag NMs, have the most pronounced negative effects on various soil microbial community metrics.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Shareen K. D. Sanders, Gerard Martinez-De Leon, Ludovico Formenti, Madhav P. Thakur
Summary: Collembolans, the diverse group of soil invertebrates, are affected by anthropogenic climate warming, which alters their diversity and density. In addition to abiotic stressors, changes in food availability, specifically the abundance of saprotrophic and mycorrhizal fungi, influence Collembola responses to climate warming. Collembolans prefer saprotrophic fungi but rely on mycorrhizal fungi when food sources are scarce. Understanding the mechanisms behind these dietary shifts in warm-dry and warm-wet soil conditions is crucial for predicting the impact of climate change on Collembola-fungal interactions.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Wimonsiri Pingthaisong, Sergey Blagodatsky, Patma Vityakon, Georg Cadisch
Summary: A study found that mixing high-C/N ratio rice straw with low-C/N ratio groundnut stover can improve the chemical composition of the input, stimulate microbial growth, decrease the loss of residue-derived carbon in the soil, and reduce native soil carbon and nitrogen consumption.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)
Article
Soil Science
Jiachen Wang, Jie Zhao, Rong Yang, Xin Liu, Xuyuan Zhang, Wei Zhang, Xiaoyong Chen, Wende Yan, Kelin Wang
Summary: Nitrogen is vital for ecosystem productivity, restoration, and succession processes. This study found that legume intercropping was more effective than chemical nitrogen fertilizers in promoting the complexity and stability of the soil micro-food web, as it increased microbial and nematode communities and enhanced energy flow patterns.
SOIL BIOLOGY & BIOCHEMISTRY
(2024)