Results 141 to 150 of about 47,392 (275)

Control of electron transfer in nitrogenase.

open access: yesCurrent Opinion in Chemical Biology, 2018
The bacterial enzyme nitrogenase achieves the reduction of dinitrogen (N2) to ammonia (NH3) utilizing electrons, protons, and energy from the hydrolysis of ATP. Building on earlier foundational knowledge, recent studies provide molecular-level details on
L. Seefeldt   +6 more
semanticscholar   +1 more source

A Specific Sinorhizobium Flagellin Suppresses Legume Nodulation Through Immune Activation

open access: yesPlant Biotechnology Journal, Volume 24, Issue 5, Page 3441-3457, May 2026.
ABSTRACT Bacterial flagellin‐activated immunity plays a crucial role in shaping plant‐microbe interactions, leading to either parasitism, mutualism, or commensalism. In the legume‐rhizobium symbiosis, while it has been hypothesized that rhizobial infection involves avoidance of plant immunity following flagellin perception, direct evidence supporting ...
Li Liu   +8 more
wiley   +1 more source

Hopanoid lipids may facilitate aerobic nitrogen fixation in the ocean. [PDF]

open access: yes, 2019
Cyanobacterial diazotrophs are considered to be the most important source of fixed N2 in the open ocean. Biological N2 fixation is catalyzed by the extremely O2-sensitive nitrogenase enzyme.
Cornejo-Castillo, Francisco M   +1 more
core   +1 more source

Tracing the ‘9th Sulfur’ of the Nitrogenase Cofactor via a Semi-Synthetic Approach

open access: yesNature Chemistry, 2018
The M-cluster is the [(homocitrate)MoFe7S9C] active site of nitrogenase that is derived from an 8Fe core assembled viacoupling and rearrangement of two [Fe4S4] clusters concomitant with the insertion of an interstitial carbon and a ‘ninth sulfur ...
Kazuki Tanifuji   +6 more
semanticscholar   +1 more source

The genetics of symbiotic nitrogen fixation: comparative genomics of 14 Rhizobia Strains by resolution of protein clusters. [PDF]

open access: yes, 2017
The symbiotic relationship between legumes and nitrogen fixing bacteria is critical for agriculture, as it may have profound impacts on lowering costs for farmers, on land sustainability, on soil quality, and on mitigation of greenhouse gas emissions ...
BARRERO, R.   +6 more
core   +1 more source

Can Molybdenum Fertilization Enhance Protein Content and Digestibility of Sorghum Single Cropped and Intercropped with Cowpea?

open access: yesGrasses
Molybdenum fertilization represents a viable alternative for improving forage quality, potentially complementing or enhancing the effects of nitrogen fertilization.
Nágila Sabrina Guedes da Silva   +9 more
doaj   +1 more source

Regulation of Nitrogen Fixation in Bradyrhizobium sp. Strain DOA9 Involves Two Distinct NifA Regulatory Proteins That Are Functionally Redundant During Symbiosis but Not During Free-Living Growth

open access: yesFrontiers in Microbiology, 2018
The Bradyrhizobium sp. DOA9 strain displays the unusual properties to have a symbiotic plasmid and to fix nitrogen during both free-living and symbiotic growth.
Jenjira Wongdee   +4 more
doaj   +1 more source

Is there a niche complementarity for nitrate uptake among savannah shrub and tree species in a very deep Brazilian soil? [PDF]

open access: yes, 2019
Belowground niche complementarity between deep-rooted and shallow-rooted species in mixed forests may result in a more complete exploitation of soil resources than in monocultures.
Alo, Livia   +4 more
core  

Cyanobacteria in CELSS: Growth strategies for nutritional variation and nitrogen cycling [PDF]

open access: yes
Cyanobacteria (blue-green algae) are versatile organisms which are capable of adjusting their cellular levels of carbohydrate, protein, and lipid in response to changes in the environment.
Fry, I. V., Packer, L.
core   +1 more source

Application of photosynthetic N2-fixing cyanobacteria to the CELSS program [PDF]

open access: yes
Commercially available air lift fermentors were used to simultaneously monitor biomass production, N2-fixation, photosynthesis, respiration, and sensitivity to oxidative damage during growth under various nutritional and light regimes, to establish a ...
Belkin, S., Fry, I., Packer, L.
core   +1 more source

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