Results 41 to 50 of about 1,034,709 (313)

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Linking Soil Microbial Diversity to Nitrogen and Phosphorus Dynamics

Microorganisms
Changes in the soil microbial community for studies of different novel communities can be promoted by different methodologies, among which soil autoclaving stands out as a quick and readily available tool.
Bruna Arruda, Eduardo Mariano, Wilfrand Ferney Bejarano-Herrera, Fábio Prataviera, Elizabeth Mie Hashimoto, Fernando Ferrari Putti, Jéssica Pigatto de Queiroz Barcelos, Paulo Sergio Pavinato, Fernando Dini Andreote, Davey L. Jones   +9 more
doaj   +1 more source

The influence of inorganic nitrogen fertilizer forms on micronutrient retranslocation and accumulation in grains of winter wheat

Frontiers in Plant Science, 2013
The fortification of cereal grains with metal micronutrients is a major target to combat human malnutrition of Fe and Zn. Based on recent studies showing that N fertilization can promote Fe and Zn accumulation in cereal grains, we investigated here the ...
Nunun eBarunawati, Ricardo Fabiano eHettwer Giehl, Bernhard eBauer, Nicolaus eVon Wirén   +3 more
doaj   +1 more source

Ammonium Impacts Methane Oxidation and Methanotrophic Community in Freshwater Sediment

Frontiers in Bioengineering and Biotechnology, 2020
Lacustrine ecosystems are regarded as one of the important natural sources of greenhouse gas methane. Aerobic methane oxidation, carried out by methane-oxidizing bacteria, is a key process regulating methane emission.
Yuyin Yang, Tianli Tong, Jianfei Chen, Yong Liu, Shuguang Xie   +4 more
doaj   +1 more source

NQS-Doped PDMS Solid Sensor: From Water Matrix to Urine Enzymatic Application

Biosensors, 2021
The development of in situ analytical devices has gained outstanding scientific interest. A solid sensing membrane composed of 1,2-naphthoquinone-4-sulfonate (NQS) derivatizing reagent embedded into a polymeric polydimethylsiloxane (PDMS) composite was ...
Adrià Martínez-Aviñó, Lusine Hakobyan, Ana Ballester-Caudet, Yolanda Moliner-Martínez, Carmen Molins-Legua, Pilar Campíns-Falcó   +5 more
doaj   +1 more source

Pentazole and Ammonium Pentazolate: Crystalline Hydro-Nitrogens at High Pressure

, 2017
Two new crystalline compounds, pentazole (N_{5}H) and ammonium pentazolate (NH_{4})(N_{5}), both featuring cyclo-{\rm N_{5}^{-}} are discovered using first principles evolutionary search of the nitrogen-rich portion of the hydro-nitrogen binary phase ...
Oleynik, Ivan I., Steele, Brad A.
core   +4 more sources

Leaves play a central role in the adaptation of nitrogen and sulfur metabolism to ammonium nutrition in oilseed rape (Brassica napus) [PDF]

, 2010
Background: The coordination between nitrogen (N) and sulfur (S) assimilation is required to suitably provide plants with organic compounds essential for their development and growth.
Aparicio-Tejo, Pedro M., Bejarano, Iraide, Coleto, Inmaculada, de la Peña, Marlon, Glauser, Gaëtan, González-Moro, M. Begoña, Marino, Daniel, Rodríguez-Escalante, Jon   +7 more
core   +7 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Importance of N2O in greenhouse gas budgets of tropical peatlands

Frontiers in Environmental Science
Tropical peatland ecosystems significantly influence Earth’s climate through their greenhouse gas exchange. Permanently wet peatlands take up carbon dioxide in plants and accumulate organic carbon in soil but release methane.
Jaan Pärn, Mikk Espenberg, Kaido Soosaar, Kuno Kasak, Kuno Kasak, Sandeep Thayamkottu, Thomas Schindler, Reti Ranniku, Reti Ranniku, Kristina Sohar, Lizardo Fachín Malaverri, Lulie Melling, Ülo Mander   +12 more
doaj   +1 more source

Evaluation of Physicochemical On-Farm Quick Tests for Estimating Nutrient Concentrations in Pig Slurry and Development of an Application for Mobile Devices

Agronomy, 2022
Farmers need to know the actual nutrient concentrations in organic manures in order to enable optimal crop nutrition and to avoid nutrient losses into the environment.
Max-Frederik Piepel, Klaus Dittert, Hans-Werner Olfs   +2 more
doaj   +1 more source