Results 61 to 70 of about 3,847 (199)

Origin and temporal variability of unusually low δ13C-DOC values in two High Arctic catchments [PDF]

, 2016
The stable carbon isotopic composition of dissolved organic matter (δ13C-DOC) reveals information about its source and extent of biological processing. Here we report the lowest δ13C-DOC values (−43.8‰) measured to date in surface waters.
Amon, Amon, Barbier, Bhatia, Bilotta, Boyd, Boyd, Boyd, Boyd, Cameron, Conrad, Conway, Cooper, Cooper, Dieser, Elberling, Etzelmüller, Etzelmüller, Finlay, Graef, Gray, Greenwald, Guo, Guo, Guo, Hamilton, Havig, Hindshaw, Holmes, Holmes, Holmes, Hood, Hudson, Humlum, Høj, Ishikawa, Kendall, Kohzu, Lafrenière, Lang, Luton, Mackelprang, MacLean, MacLeod, Major, Mann, Martineau, McDonald, McGoldrick, Murphy, Murphy, Pacheco-Oliver, Palmer, Raymond, Schiff, Schuur, Sheik, Shelley, Singer, Skidmore, Spencer, Spencer, Spencer, Spencer, Spencer, Springer, Stumm, Summons, Sundquist, Svendsen, Tarnocai, Telling, Trimmer, Trotsenko, Tveit, Vonk, Wang, Wassenaar, Wassenaar, Whiticar, Wickland, Ziaja, Ziaja, Ziegler   +83 more
core   +2 more sources

Critical evaluation of three cryo‐EM structures of particulate methane monooxygenase by quantum refinement

Acta Crystallographica Section D, Volume 81, Issue 11, Page 605-620, November 2025.
We have studied the copper sites in three cryogenic electron‐microscopy structures of particulate methane monooxygenase with quantum refinement. We show that the CuA, CuC and CuD sites are correctly modelled and that the CuB site is mononuclear in all structures, whereas we find no support for copper in the suggested trinuclear active site or two sites
Gayathri Yuvaraj, Kristoffer J. M. Lundgren, Elija Veenman, Esko Oksanen, Ulf Ryde   +4 more
wiley   +1 more source

Soil Properties Interacting With Microbial Metagenome in Decreasing CH4 Emission From Seasonally Flooded Marshland Following Different Stages of Afforestation

Frontiers in Microbiology, 2022
Wetlands are the largest natural source of terrestrial CH4 emissions. Afforestation can enhance soil CH4 oxidation and decrease methanogenesis, yet the driving mechanisms leading to these effects remain unclear.
Qian Zhang, Jie Tang, Roey Angel, Dong Wang, Xingyi Hu, Shenghua Gao, Lei Zhang, Yuxi Tang, Xudong Zhang, Roger T. Koide, Haishui Yang, Qixiang Sun   +11 more
doaj   +1 more source

Different parts of the mussel Gigantidas haimaensis holobiont responded differently to deep‐sea sampling stress

Integrative Zoology, Volume 20, Issue 6, Page 1294-1305, November 2025.
Symbiotic gill and nonsymbiotic mantle of mussel Gigantidas haimaensis responded differently to deep‐sea sampling stress caused by acute environmental changes. Sharply increased transcription factors potentially play key roles in initiating the response of sampled deep‐sea macrobenthos to the sampling stress.
Guoyong YAN, Tong WEI, Yi LAN, Ting XU, Peiyuan QIAN   +4 more
wiley   +1 more source

Wide Distribution of a Novel pmoA -Like Gene Copy among Type II Methanotrophs, and Its Expression in Methylocystis Strain SC2 [PDF]

Applied and Environmental Microbiology, 2003
ABSTRACT Experiments were conducted to determine if a novel pmoA -like gene ( pmoA2 ) recently discovered in the methane-oxidizing bacterium Methylocystis strain SC2 (P. F. Dunfield, M. Tchawa Yimga, S. D. Dedysh, U. Berger, W. Liesack, and J.
Yimga, M., Dunfield, P., Ricke, P., Heyer, H., Liesack, W.   +4 more
openaire   +3 more sources

Call for Standardizing Uncaria rhynchophylla as the Sole Origin of Uncariae Ramulus cum Uncis

Phytochemical Analysis, Volume 36, Issue 7, Page 1959-1973, October 2025.
ABSTRACT Background Uncariae Ramulus cum Uncis (URCU) is a widely used traditional Chinese medicine (TCM) for treating neurodegenerative disorders. The Chinese Pharmacopeia recognizes five Uncaria species as authorized botanical sources of URCU; however, there is currently no established quality control method for individual species.
Hau‐Yee Fung, Cheuk‐Hei Lai, Qianran Li, Hau‐Yee Kong, Lifeng Li, Quanbin Han   +5 more
wiley   +1 more source

Implementation of U.K. Earth system models for CMIP6 [PDF]

, 2020
We describe the scientific and technical implementation of two models for a core set of experiments contributing to the sixth phase of the Coupled Model Intercomparison Project (CMIP6).
Abraham, Nathan Luke, Andrejczuk, Miroslaw, Andrews, Martin B., Andrews, Timothy, Archibald, Alex T., de Mora, Lee, Dyson, Harold, Elkington, Mark, Ellis, Richard, Florek, Piotr, Gohar, Laila, Good, Peter, Griffiths, Paul T., Haddad, Stephen, Hardiman, Steven C., Hogan, Emma, Iwi, Alan, Johnson, Ben, Jones, Christopher D., Jones, Colin G., Kelley, Douglas I., Kettleborough, Jamie, Knight, Jeff R., Kuhlbrodt, Till, Köhler, Marcus O., Liddicoat, Spencer, Linova‐Pavlova, Irina, Mizielinski, Matthew S., Morgenstern, Olaf, Mulcahy, Jane, Neininger, Erica, O'Connor, Fiona M., Petrie, Ruth, Ridley, Jeff, Rioual, Jean‐Christophe, Roberts, Malcolm, Robertson, Eddy, Rumbold, Steven, Seddon, Jon, Sellar, Alistair A., Shepherd, Harry, Shim, Sungbo, Stephens, Ag, Tang, Yongming, Teixiera, Joao C., Walton, Jeremy, Williams, Jonny, Wiltshire, Andy, Wood, Richard   +48 more
core   +2 more sources

Seasonality of temperature dependence of methane fluxes from natural wetlands

Functional Ecology, Volume 39, Issue 9, Page 2383-2397, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Temperature dependence is a crucial parameter in estimating methane (CH4) fluxes from natural wetlands, yet our understanding of this parameter remains inadequate. Seasonal fluctuations in water levels and ecosystem productivity lead to seasonal differences in CH4 ...
Jinshuai Li, Tianxiang Hao, Hongyang Chen, Sara Helen Knox, Meng Yang, Zhi Chen, Guirui Yu   +6 more
wiley   +1 more source

Soil CO2 emission and soil attributes associated with the microbiota of a sugarcane area in southern Brazil

Scientific Reports, 2021
The spatial structure of soil CO2 emission (FCO2) and soil attributes are affected by different factors in a highly complex way. In this context, this study aimed to characterize the spatial variability patterns of FCO2 and soil physical, chemical, and ...
Mara Regina Moitinho, Daniel De Bortoli Teixeira, Elton da Silva Bicalho, Alan Rodrigo Panosso, Antonio Sergio Ferraudo, Gener Tadeu Pereira, Siu Mui Tsai, Beatriz Maria Ferrari Borges, Newton La Scala Jr.   +8 more
doaj   +1 more source

Season and No-Till Rice Crop Intensification Affect Soil Microbial Populations Involved in CH4 and N2O Emissions

Frontiers in Soil Science, 2022
Rice is an important source of methane (CH4) and other crops may be sources of nitrous oxide (N2O), both of which are powerful greenhouse gases. In Uruguay, irrigated rice rotates with perennial pastures and allows high productivity and low environmental
Ana Fernández-Scavino, Daniela Oreggioni, Andrea Martínez-Pereyra, Silvana Tarlera, José A. Terra, Pilar Irisarri   +5 more
doaj   +1 more source