Zobrazeno 1 - 10
of 167
pro vyhledávání: '"Erik Björn"'
Autor:
Chuxian Li, Martin Jiskra, Mats B. Nilsson, Stefan Osterwalder, Wei Zhu, Dmitri Mauquoy, Ulf Skyllberg, Maxime Enrico, Haijun Peng, Yu Song, Erik Björn, Kevin Bishop
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-12 (2023)
Abstract Peatland vegetation takes up mercury (Hg) from the atmosphere, typically contributing to net production and export of neurotoxic methyl-Hg to downstream ecosystems. Chemical reduction processes can slow down methyl-Hg production by releasing
Externí odkaz:
https://doaj.org/article/ec5c0d90fa604cf091f1cc4bd92e1ffe
Autor:
Emily Seelen, Van Liem-Nguyen, Urban Wünsch, Zofia Baumann, Robert Mason, Ulf Skyllberg, Erik Björn
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-13 (2023)
Abstract The most critical step for methylmercury (MeHg) bioaccumulation in aquatic food webs is phytoplankton uptake of dissolved MeHg. Dissolved organic matter (DOM) has been known to influence MeHg uptake, but the mechanisms have remained unclear.
Externí odkaz:
https://doaj.org/article/084d894983ed41618fa18495a6193607
Publikováno v:
Biofilm, Vol 6, Iss , Pp 100144- (2023)
Geobacter species are common in iron-rich environments and can contribute to formation of methylmercury (MeHg), a neurotoxic compound with high bioaccumulation potential formed as a result of bacterial and archaeal physiological activity. Geobacter s
Externí odkaz:
https://doaj.org/article/596586439beb4422873ef107bc73a45a
Autor:
Léa Cabrol, Eric Capo, Daan M. van Vliet, F. A. Bastiaan von Meijenfeldt, Stefan Bertilsson, Laura Villanueva, Irene Sánchez-Andrea, Erik Björn, Andrea G. Bravo, Lars-Eric Heimburger Boavida
Publikováno v:
mSystems, Vol 8, Iss 4 (2023)
ABSTRACT In the global context of seawater deoxygenation triggered by climate change and anthropogenic activities, changes in redox gradients impacting biogeochemical transformations of pollutants, such as mercury, become more likely. Being the large
Externí odkaz:
https://doaj.org/article/b84b2e5717804abcadbadc7b38964570
Publikováno v:
Frontiers in Microbiology, Vol 14 (2023)
IntroductionMercury (Hg) is a major environmental pollutant that accumulates in biota predominantly in the form of methylmercury (MeHg). Surface-associated microbial communities (biofilms) represent an important source of MeHg in natural aquatic syst
Externí odkaz:
https://doaj.org/article/84ac6061787b463fb89bbbda3a8ecd38
Publikováno v:
Frontiers in Microbiology, Vol 13 (2023)
Low-molecular-mass (LMM) thiol compounds are known to be important for many biological processes in various organisms but LMM thiols are understudied in anaerobic bacteria. In this work, we examined the production and turnover of nanomolar concentrat
Externí odkaz:
https://doaj.org/article/1b04a3d2e15141568e55e2db57eb7241
Autor:
Juanjo Rodríguez, Agneta Andersson, Erik Björn, Sari Timonen, Sonia Brugel, Aleksandra Skrobonja, Owen Rowe
Publikováno v:
Frontiers in Microbiology, Vol 13 (2022)
Methylmercury (MeHg) is a potent neurotoxin commonly found in aquatic environments and primarily formed by microbial methylation of inorganic divalent mercury (Hg(II)) under anoxic conditions. Recent evidence, however, points to the production of MeH
Externí odkaz:
https://doaj.org/article/0fdff236a2c840ca9a582e490aedf605
Publikováno v:
Frontiers in Environmental Science, Vol 8 (2021)
The potent neurotoxin methylmercury (MeHg) is a major concern due to its negative effects on wildlife and human health. Boreal wetlands play a crucial role in Hg cycling on a global scale, and therefore, it is crucial to understand the biogeochemical
Externí odkaz:
https://doaj.org/article/ae4730a4975f447dae0cf91d1d427973
Autor:
Eric Capo, Andrea G. Bravo, Anne L. Soerensen, Stefan Bertilsson, Jarone Pinhassi, Caiyan Feng, Anders F. Andersson, Moritz Buck, Erik Björn
Publikováno v:
Frontiers in Microbiology, Vol 11 (2020)
Methylmercury (MeHg), a neurotoxic compound biomagnifying in aquatic food webs, can be a threat to human health via fish consumption. However, the composition and distribution of the microbial communities mediating the methylation of mercury (Hg) to
Externí odkaz:
https://doaj.org/article/9884e5b8cee647e49c80b9e4afe9c863
Autor:
Andrea G. Bravo, Sylvain Bouchet, Julie Tolu, Erik Björn, Alejandro Mateos-Rivera, Stefan Bertilsson
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
Neurotoxic methylmercury can be found in high levels in aquatic systems, but the role of organic matter in methylmercury formation is not well understood. Here, Bravoet al. show that plankton-derived organic compounds enhance formation rates in borea
Externí odkaz:
https://doaj.org/article/8b9fc8d60306428283344eaf14584b2f