Nick Mark, MD @nick

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4 posts4 participants0 posts today

**ReDATA, University of Arizona** @redata@mastodon.social · 2d

ReDATA, University of Arizona @redata@mastodon.social

Did you know some metamorphic #rocks, called metabasic rocks, are an enormous source of #nitrogen being carried deep into the Earth through subduction? A deep nitrogen (N) cycling study by Ananya Mallik, Anna Rebaza, Paul Kapp, Long Li, Yifan Du, Ahmed Al Shams, Emily Cooperdock unveiled these and more. Check out their dataset and article at https://doi.org/10.25422/azu.data.23504415 and https://doi.org/10.1016/j.gca.2023.10.007. Image: Stockcake #OpenData #OpenScience #Geosciences #UniversityofArizona

Dramatic rock formations frame a narrow channel of seafoam green water, revealing millions of years of geological history in one captivating scene.

**Benjamin Carr, Ph.D.** @BenjaminHCCarr@hachyderm.io · 4d

Benjamin Carr, Ph.D. @BenjaminHCCarr@hachyderm.io

#Whale pee moves vital nutrients thousands of miles
'We often think of plants as the lungs of the planet. Animals are the circulatory system.’
Some new research found that great #whales—including right whales, gray whales, and humpbacks—transport roughly 4,000 tons of #nitrogen to low-nutrient coastal areas in the tropics and subtropics every single year. Described as the “great whale pee funnel.”
https://www.popsci.com/environment/whale-pee-nutrients/

Popular Science · Mar 10Whale pee moves vital nutrients thousands of miles'We often think of plants as the lungs of the planet. Animals are the circulatory system.’

**Victor** @Victor@spore.social · 5d

Victor @Victor@spore.social

Flanders is pioneering wastewater innovation, transforming urban drainage into valuable bio-based fertilisers. #Belgium #wastewater #recycling #reclamation #biosolids #nitrogen #phosphorus https://www.youris.com/environment/recycling/waste-not-recover-more-flanders-leads-the-way-in-wastewater-innovation.kl

www.youris.comWaste not, recover more: Flanders leads the way in wastewater innovationFlanders is pioneering wastewater innovation, transforming urban drainage into valuable bio-based fertilisers. However, obstacles such as economic viability and regulatory hurdles persist, warns Aquafin's Lennert Dockx.

**Victor** @WWBugs@mstdn.social · 5d

Victor @WWBugs@mstdn.social

**Colin Purrington** @colinpurrington@flipping.rocks · 6d

Colin Purrington @colinpurrington@flipping.rocks

So what are people's thoughts on using wood chips for weed suppression? I've heard that fungal decomposition sucks nitrogen from the surrounding soil, plus the nooks and crannies can provide ideal habitat for plant-nibbling pillbugs. (This is not my plot.) #CommunityGarden #garden #gardening #weeds #mulch #fungi #woodchips #nitrogen #pillbugs #woodlice #allotment

Plot at a community garden that is totally covered in several inches of wood chips.

**Victor** @Victor@spore.social · Apr 13

Apr 13

Victor @Victor@spore.social

Conformational protection of molybdenum nitrogenase by Shethna protein II. #N2 #Nitrogen #wastewater #bacteria https://www.nature.com/articles/s41586-024-08355-3

NatureConformational protection of molybdenum nitrogenase by Shethna protein II - NatureA small ferredoxin (Shethna protein II) of Azotobacter vinelandii can provide protection from O2 stress that may be crucial for the maintenance of recombinant nitrogenase in food crops.

**Victor** @WWBugs@mstdn.social · Apr 13

Apr 13

Victor @WWBugs@mstdn.social

Conformational protection of molybdenum nitrogenase by Shethna protein II. #N2 #Nitrogen #wastewater #bacteria https://www.nature.com/articles/s41586-024-08355-3

**Victor** @Victor@spore.social · Apr 13

Apr 13

Victor @Victor@spore.social

Structural basis for the conformational protection of nitrogenase from O2. #N2 #Nitrogen #wastewater #bacteria https://www.nature.com/articles/s41586-024-08311-1

NatureStructural basis for the conformational protection of nitrogenase from O2 - NatureCryo-electron microscopy of Azotobacter vinelandii FeSII–nitrogenase reveals a core complex of molybdenum–iron proteins (MoFePs), iron proteins (FePs) and FeSII, in which FeSII mediates interactions with MoFeP and FeP to position their FeS clusters in catalytically inactive but O2-protected states.

**Victor** @WWBugs@mstdn.social · Apr 13

Apr 13

Victor @WWBugs@mstdn.social

Structural basis for the conformational protection of nitrogenase from O2. #N2 #Nitrogen #wastewater #bacteria https://www.nature.com/articles/s41586-024-08311-1

Continued thread

**preLights** @preLights@biologists.social · Mar 14

Mar 14

preLights @preLights@biologists.social

How do plants fine-tune their genes to use nitrogen? Is it a conserved mechanism?

This #preprint (from Nicola Patron & team) delves into this transcriptional network to answer these questions.

First preLight from Jeny Jose!

#preLight: https://prelights.biologists.com/highlights/conservation-and-divergence-of-regulatory-architecture-in-nitrate-responsive-plant-gene-circuits/

preLightsConservation and divergence of regulatory architecture in nitrate-responsive plant gene circuits - preLightsHow do plants fine-tune their genes to use nitrogen? Is it a conserved mechanism? The preprint delves into this transcriptional network to answer these questions.

#biology #plants #genetics

**CellBioNews** @cellbionews@scientificnetwork.de · Mar 11

Mar 11

CellBioNews @cellbionews@scientificnetwork.de

#Nitrogen for nothing and your #protein for free.

#nitrogen_fixation #nitrogenase #bacteria #mightymicrobes #food_security #bioengineering #DNA #mitochondria #plants #agriculture

https://phys.org/news/2025-03-nitrogen-protein-free.html

Phys.org · Mar 11Nitrogen for nothing and your protein for freeBy Anu Mathew

**CelloMom On Cars** @CelloMomOnCars@mastodon.social · Mar 5

Mar 5

CelloMom On Cars @CelloMomOnCars@mastodon.social

#Agriculture is main cause of seasonal carbon ups and downs, study finds

"The study found that agricultural #nitrogen is responsible for 45% of the fluctuation increase in the annual carbon cycle. More carbon dioxide in the atmosphere and warmer temperatures contribute 40% and 18%, respectively."

https://phys.org/news/2025-03-agriculture-main-seasonal-carbon-ups.html

Again:
"The research found that agricultural NITROGEN FERTILIZER is the biggest contributor."

Phys.org · Mar 4Agriculture is main cause of seasonal carbon ups and downs, study findsBy Jayme DeLoss

**Jason Stiff** @JasonStiff@sfba.social · Mar 3

Mar 3

Jason Stiff @JasonStiff@sfba.social

While oxygen, carbon, hydrogen, and nitrogen make up 96% of most human bodies, my body is composed of sulfur, argon, calcium, and samarium.

#science #oxygen #carbon

**CellBioNews** @cellbionews@scientificnetwork.de · Feb 28

Feb 28

CellBioNews @cellbionews@scientificnetwork.de

Too much of a good thing: How high #nitrogen levels compromise #plant

#pathology #agriculture #food_security #peptide_hormones #phytocytokines #bacteria #immune_response #Pseudomonas #CEP_signaling

https://phys.org/news/2025-02-good-high-nitrogen-compromise-immunity.html

Phys.org · Feb 27Too much of a good thing: How high nitrogen levels compromise plant immunityBy Technical University Munich

**Technische Universität München** @tu_muenchen@wisskomm.social · Feb 27

Feb 27

Technische Universität München @tu_muenchen@wisskomm.social

Researchers discovered that too much #nitrogen weakens a plant's #immunesystem by limiting a #protein that makes the plant resistant to certain #bacteria: http://go.tum.de/821717

#Phytopathology

H.Leicher / Nature Communications / Creative Commons License

go.tum.deWhy too much nitrogen is harmful to plantsEven for plants, there can be too much of a good thing. When nitrogen levels are too high, for example due to excessive fertilization, plants become more susceptible to certain diseases. However, the exact reasons are not yet fully understood. A group of researchers involving the Technical University of Munich (TUM) has now taken the first steps towards answering this question. They identified a small protein (peptide) that makes the plant resistant to certain bacteria. However, its effect is limited when there is a high nitrogen supply.

**CellBioNews** @cellbionews@scientificnetwork.de · Feb 20

Feb 20

CellBioNews @cellbionews@scientificnetwork.de

Closing the recycle loop: #Waste-derived #nutrients in liquid #fertilizer.

#mightymicrobes #nitrification #agriculture #sustainable #nitrogen #phosphorus #hydroponics

https://phys.org/news/2025-02-recycle-loop-derived-nutrients-liquid.html

Phys.org · Feb 20Closing the recycle loop: Waste-derived nutrients in liquid fertilizerBy Osaka Metropolitan University

Continued thread

**Alexander J. Stein** @AJStein_de@mastodon.world · Feb 16

Feb 16

Alexander J. Stein @AJStein_de@mastodon.world

(3/4) Animal-based foods consistently impact #landuse, GHG emissions, #nitrogen input & ammonia #emissions more than #plant-based alternatives. A high demand for animal feed necessitates extensive utilization of cropland & for #fertilizers substantial nitrogen inputs: https://doi.org/10.1016/j.crsust.2025.100281