Today, molybdenum is one of the most common trace elements in the ocean due to oxidative weathering of #Molybdenite. But in the Archean the oceans were reducing, and molybdenum was scarce.
Other nitrogenases evolved to use other transition elements, but Mo-nitrogenase was first, and best.
Molybdenite enables the Earth's biosphere!
#MinCup25 #NitrogenFixation #Nitrogenase #Archean #GreatOxidationEvent #OreCup #OreCup25
#Molybdenite is the primary host for the element molybdenum in the Earth's crust.
Molybdenum is part of the most effective biological molecule for nitrogen fixation (Mo-nitrogenase), which converts atmospheric N2 to a bio-available form.
The grey sphere is Mo; this complex molecule likely evolved more than 3.2 billion years ago.
#MInCup25 #NitrogenFixation #Nitrogenase #Archean #OreCup #Orecup25
#KnowledgeByte: Green #NitrogenFixation refers to a variety of emerging methods for producing #Ammonia, the primary ingredient in synthetic fertilizers, without the high energy consumption and fossil fuel dependence of the conventional Haber-Bosch process.
https://knowledgezone.co.in/posts/Green-Nitrogen-Fixation-68a09d3e498dd62ecc06e9fb
16-Jul-2025
#Uranium-based #catalyst turns air #nitrogen into #ammonia
would be even more exciting if it also worked with a non-radioactive element?
https://www.eurekalert.org/news-releases/1091282
#science #chemistry #nitrogenFixation #catalysis #HaberBosch
19-Feb-2025
#NitrogenFixation on marine particles is important in the global ocean
https://www.eurekalert.org/news-releases/1074318 #science #ecology #MarineBiology
BIG DEAL! First known nitrogen-fixing eukaryote (all the others are prokaryotes): An alga with a special organelle living in the ocean. https://www.the-scientist.com/the-first-nitrogen-fixing-eukaryotic-marine-alga-discovered-72225 #nitrogenfixation #NitrogenCycle #algae #marineecology
Nitrogen Fixation
#NitrogenFixation, #NonSymbiotic, #RDTAndNitrogenFixation, #Symbiotic #Microbiology There are number of microorganisms in the nature those are involved in the process of nitrogen fixation. These microorganisms use…. Medical Microbiology & Recombinant DNA Technology (RDT) Labs | Read More -
https://micrordt.wordpress.com/2024/05/03/nitrogen-fixation/
Mechanism Of Nitrogen Fixation
#NitrogenFixation, #Nitrogenase #Biochemistry The reduction of atmospheric gaseous nitrogen to ammonia is called nitrogen fixation. Nitrogen is a major component not only of…. Medical Microbiology & Recombinant DNA Technology (RDT) Labs | Read More -
https://micrordt.wordpress.com/2024/04/28/mechanism-of-nitrogen-fixation/
Discovery of Nitrogen-Fixing Cell-organelle Nitroplast in a Eukaryotic Algae
Biosynthesis of proteins and nucleic acid require nitrogen however atmospheric nitrogen is not available to eukaryotes for organic synthesis............
#cyanobacteria #eukaryoticsignatureproteins #nitrogenfixation #nitroplast #prokaryotes
Umesh Prasad
Nitrogen-fixing organelle in a marine alga
#evolution #EvolutionaryBiology #nitrogen #NitrogenFixation
11-APR-2024
Scientists discover first nitrogen-fixing organelle
Meaning: #eukaryotes CAN do
#NitrogenFixation
wow. A scientific fact I mentioned in several of my books is no longer true. Also, all biology / biochemistry textbooks need to be updated. Oh well. Exciting to see such a major change though.
An international team of scientists describes the first known #nitrogen-fixing organelle within a #eukaryotic cell. The organelle is the fourth example in history of primary endosymbiosis—the process by which a prokaryotic cell is engulfed by a eukaryotic cell and evolves beyond #symbiosis into an organelle. #nature #water #nitrogenfixation https://phys.org/news/2024-04-scientists-nitrogen-organelle-1.html
An international team of scientists describes the first known #nitrogen-fixing organelle within a #eukaryotic cell. The organelle is the fourth example in history of primary endosymbiosis—the process by which a prokaryotic cell is engulfed by a eukaryotic cell and evolves beyond #symbiosis into an organelle. #nature #water #nitrogenfixation https://phys.org/news/2024-04-scientists-nitrogen-organelle-1.html
16-Nov-2023
Plants that survived dinosaur extinction pulled nitrogen from air
https://www.eurekalert.org/news-releases/1007902 #science #evolution #ecology #plants #NitrogenFixation
I may as well inaugurate my mastodon profile with my post on the crazy history behind #nitrogen N≡N — the wars fought ⛷️, poo mined 🐦 , and science pioneered 🔎 in the quest to sequester it from air to soil:
https://keiran-rowell.github.io/nitrogen-fixation/2023-06-14-nitrogen-fixation/
Sun et al. provide a comprehensive perspective of the #cellular landscape during #soybean #nodulation, shedding light on the #metabolic and #developmental mechanisms of #nodule formation.
https://doi.org/10.1111/jipb.13495.
@wileyplantsci
#JIPB #PlantScience #NitrogenFixation
Animal herbivores hamper nitrogen fixation in tropical forests https://www.eurekalert.org/news-releases/973838 #ecology #NitrogenFixation #herbivores
Quick #introduction.
I am a #terrestrial #ecologist 👩🔬 interested in #polar ❄️ #ecosystems. Currently #postdoc at #VUAmsterdam working on #Antarctic 🇦🇶 #microbes 🦠 and #invertebrates 🐜 living in #mosses and #lichens.
When not doing #science, I take photos 🎞️ (ingeborgklarenberg.nl), and spend as much time as possible outside #running 🏃♀️, #climbing 🧗♀️, hiking and bird watching.
#eDNA #metabarcoding #nitrogenfixation #molecularecology
#symbiosis
Toilet-Training Cows is No Bull
Human activity may be the main cause of climate change, but all these cows milling and mooing about don't help, either. Everyone knows that cows produce methane-laden flatulence, but there's another problem -- their urine contains ammonia. The nitrogen leeches into the soil and turns into nitrous oxide, which is no laughing matter. So what's the answer, giant diapers? No, just train them to use a toilet instead of the soil-let.
A pair of researchers from the University of Auckland traveled to a research institute's farm in Germany with the hope of training a group of 16 calves to do their business in a special pen. The "MooLoo" is painted bright green and carpeted with artificial turf so it's less weird for the cows. First they left the calves in the pen until they peed, and then gave it a reward of sugar water. From there, they started extended the animals' distance from the MooLoo. Whenever the calves thought outside the box, they would be sprayed with water for three seconds. The results are kind of surprising: within an average of 15-20 urination sessions, 11 of the 16 cows had been trained successfully and were using the MooLoo 75% of the time. Watch a calf earn some sugar water after the break.
German cows mostly live in barns, but millions of other cows spend much of their time outside. So, how would that work? The researchers believe that cows could be trained to go when they gather for milking time. Makes sense to us, but how do you train cows on a large scale? Maybe with bovine VR?
#greenhacks #ammonia #climatechange #greenhousegases #methane #nitrogenfixation #toilettraining
