Results 101 to 110 of about 33,406 (213)
Frontiers in Microbiology, 2019 Since nitrogenase is extremely vulnerable to oxygen, aerobic or micro-aerobic nitrogen-fixing organisms need to create anaerobic microenvironments in the cells for diazotrophic growth, which would be one of the major barriers to express active ...
Aoi Nonaka +7 more
doaj +1 more source
Expression of \u3cem\u3eRhizobium leguminosarum\u3c/em\u3e CFN42 Genes for Lipopolysaccharide in Strains Derived from Different \u3cem\u3eR. leguminosarum\u3c/em\u3e Soil Isolates [PDF]
, 1990 Two mutant derivatives of Rhizobium leguminosarum ANU843 defective in lipopolysaccharide (LPS) were isolated. The LPS of both mutants lacked O antigen and some sugar residues of the LPS core oligosaccharides.
Brink, Benita Anne +3 more
core +1 more source
GuaB Activity Is Required in Rhizobium tropici During the Early Stages of Nodulation of Determinate Nodules but Is Dispensable for the Sinorhizobium meliloti–Alfalfa Symbiotic Interaction [PDF]
, 2005 The guaB mutant strain Rhizobium tropici CIAT8999-10T is defective in symbiosis with common bean, forming nodules that lack rhizobial content. In order to investigate the timing of the guaB requirement during the nodule formation on the host common ...
Aguilar, Orlando Mario +4 more
core +4 more sources
Functional Ecology, Volume 40, Issue 3, Page 692-705, March 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Industrial Haber–Bosch provides 32 Tg nitrogen (N) per year to global croplands. Such large amounts of N fertilization will reshape soil N cycles. One uncertainty is whether and how these long‐term N inputs impact soil biological N2 fixation (BNF) associated with plant ...
Xinyue Hu +10 more
wiley +1 more source
Plant, Soil and Environment, 2009 Soils were sampled from the plots with four variants of fertilisation: Nil - without fertilisation, NPK - mineral fertilisation, FYM - farmyard manure, FYM + NPK - farmyard manure with mineral fertilisation, and two variants of crop rotation: field IV ...
O. Mikanová, M. Friedlová, T. Šimon
doaj +1 more source
Hydrazine Synthase From Anammox Is Inhibited by Linear and Aromatic Alkynes
Environmental Microbiology, Volume 28, Issue 3, March 2026.Linear and aromatic alkynes inhibit anammox in culture and in wetlands. The inhibition by alkynes is specific to the hydrazine synthase, a key enzyme in the anammox pathway. ABSTRACT N2O emissions by nitrifiers are often estimated using selective inhibitors, such as 1‐alkynes.
Cerys Maryan +7 more
wiley +1 more source
Pesquisa Agropecuária Brasileira, 2003 The aim of this work was to investigate the effect of water stress on N2 fixation and nodule structure of two common bean (Phaseolus vulgaris L.) cultivars Carioca and EMGOPA-201. Plants were harvested after five and eight days of water stress.
Maria Lucrecia Gerosa Ramos +3 more
doaj +1 more source
Temporal variability of diazotroph community composition in the upwelling region off NW Iberia. [PDF]
, 2019 Knowledge of the ecology of N2-fixing (diazotrophic) plankton is mainly limited to oligotrophic (sub)tropical oceans. However, diazotrophs are widely distributed and active throughout the global ocean.
Bode, Antonio +8 more
core +2 more sources
Anaemic Streams: Iron and Essential Trace Metals Frequently Limit Primary Producer Biomass
Ecology Letters, Volume 29, Issue 3, March 2026.Nutrient enrichment experiments in 41 streams across the eastern United States demonstrate that trace metals can limit the growth of primary producers. Trace metals are frequently co‐limiting with macronutrients and the availability of N and P in streams and watersheds are predictive of Fe and Zn limitation status.
David M. Costello +10 more
wiley +1 more source
Genetic and Biochemical Analysis of the Azotobacter vinelandii Molybdenum Storage Protein
Frontiers in Microbiology, 2019 The N2 fixing bacterium Azotobacter vinelandii carries a molybdenum storage protein, referred to as MoSto, able to bind 25-fold more Mo than needed for maximum activity of its Mo nitrogenase.
Mónica Navarro-Rodríguez +2 more
doaj +1 more source