Results 111 to 120 of about 51,488 (272)

Microbial diversity in deep-sea methane seep sediments presented by SSU rRNA gene tag sequencing [PDF]

, 2012
http://www.godac.jamstec.go.jp/darwin/cruise/yokosuka/yk06-03/
ASHI, Juichiro, HIRAI, Miho, IMACHI, Hiroyuki, KAZAMA, Hiromi, NUNOURA, Takuro, TAKAI, Ken, TAKAKI, Yoshihiro, 井町, 寛之, 布浦, 拓郎, 平井, 美穂, 芦, 寿一郎, 風間, 宏美, 高井, 研, 高木, 善弘   +13 more
core   +1 more source

Kaempferol Protects Intestinal Health in Chinese Forest Musk Deer Possibly by Regulating Intestinal Microbiota and Inhibiting the NF‐κB/NLRP3 Signaling Pathway

Integrative Zoology, EarlyView.
Kaempferol modulates the tryptophan metabolism pathway by increasing the abundances of Christensenellaceae R7 group, Bacteroides, and Blautia and reducing that of Rikenellaceae RC9 gut group, thereby significantly increasing the levels of ILA and IAA. This process inhibits the activation of NF‐κB/NLRP3 signaling pathway, reduces pro‐inflammatory factor
Xiangyu Liu, Zhanjun Ren, Xiuzhu Sun, Shuhui Wang   +3 more
wiley   +1 more source

Quantitative Detection of Syntrophic Fatty Acid-degrading Bacterial Communities in Methanogenic Environments [PDF]

, 2015
In methanogenic habitats, volatile fatty acids (VFA), such as propionate and butyrate, are major intermediates in organic matter degradation. VFA are further metabolized to H2, acetate and CO2 by syntrophic fatty acid-degrading bacteria (SFAB) in ...
Maki, James, Mathai, Prince Peter, Zitomer, Daniel   +2 more
core   +2 more sources

Identifying the pre‐Odra river system with hydroacoustic and seismic reflection imagery offshore Rügen Island, southern Baltic Sea

Boreas, EarlyView.
Understanding the course and dynamics of ancient river systems, such as the pre‐Odra, provides valuable insights into the post‐glacial evolution of landscapes and riverine processes. The northwest‐trending pre‐Odra was an important drainage system of the European mainland into the Baltic Basin during and after the Scandinavian Ice Sheet retreat ...
Maryse C. Schmidt, Elisabeth Seidel, Christian Hübscher, Benedikt Haimerl, Jonas Preine   +4 more
wiley   +1 more source

Vertical distribution of methanotrophic archaea in an iron-rich groundwater discharge zone.

PLoS ONE
Anaerobic oxidation of methane coupled to iron reduction (Fe-AOM) is a crucial process for methane removal in terrestrial environments. However, the occurrence of Fe-AOM in natural environments is rare, and the mechanisms behind the direct coupling of ...
Katsunori Yanagawa, Misaki Okabeppu, Sakiko Kikuchi, Fumito Shiraishi, Yumiko Nakajima, Akihiro Kano   +5 more
doaj   +1 more source

Environmentally adjusted productivity growth and shadow prices for dairy farms

Canadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie, EarlyView.
Abstract We estimate the environmentally adjusted productivity growth and shadow price for Ontario dairy farms. We use an input‐oriented directional distance function and farm‐level data from 2000 to 2020. First, we find that while GHG emissions per cow increase with higher milk yields, emission intensity decreases as milk yield per cow increases.
Bibek Dahal, Getu Hailu, Susantha Jayasundara   +2 more
wiley   +1 more source

Persistent activity of aerobic methane-oxidizing bacteria in anoxic lake waters due to metabolic versatility

Nature Communications
Lacustrine methane emissions are strongly mitigated by aerobic methane-oxidizing bacteria (MOB) that are typically most active at the oxic-anoxic interface.
Sina Schorn, Jon S. Graf, Sten Littmann, Philipp F. Hach, Gaute Lavik, Daan R. Speth, Carsten J. Schubert, Marcel M. M. Kuypers, Jana Milucka   +8 more
doaj   +1 more source

Anaerobic oxidation of short-chain alkanes in hydrothermal sediments: potential influences on sulfur cycling and microbial diversity

Frontiers in Microbiology, 2013
Short-chain alkanes play a substantial role in carbon and sulfur cycling at hydrocarbon-rich environments globally, yet few studies have examined the metabolism of ethane (C2), propane (C3), and butane (C4) in anoxic sediments in contrast to methane (C1).
Melissa M Adams, Adrienne L Hoarfrost, Arpita eBose, Samantha B Joye, Peter R Girguis   +4 more
doaj   +1 more source

Anaerobic oxidation of methane in the Concepcion Methane Seep Area, Chilean continental margin [PDF]

, 2012
Within subduction zones of active continental margins, large amounts of methane can be mobilized by dewatering processes and transported to the seafloor along migration pathways.
Liebetrau, Volker, Linke, Peter, Schmidt, Mark, Scholz, Florian, Steeb, Philip, Treude, Tina   +5 more
core  

H2‐dependent modulation of tetrahydromethanopterin S‐methyltransferase (Mtr complex) activity by the small protein MtrR in Methanosarcina mazei

The FEBS Journal, EarlyView.
Small protein MtrR is a regulator of the Mtr methyltransferase complex in Methanosarcina mazei. It binds specifically to the MtrA subunit and modulates Mtr activity in response to hydrogen (H2) availability. Deleting mtrR impairs growth in the presence but not absence of H2, indicating its role in directing methyl transfer toward an energy‐conserving ...
Tim Habenicht, Bjarne Hastedt, Liam Cassidy, Claudia Kießling, Andreas Tholey, Jan M. Schuller, Ruth A. Schmitz   +6 more
wiley   +1 more source