X-Nico

5 unusual facts about nitrogen fixation


Fixation

Nitrogen fixation, a process by which nitrogen is converted from its inert molecular form to a compound more readily available and useful to living organisms

Glutamine oxoglutarate aminotransferase

This enzyme manufactures glutamate from glutamine and α-ketoglutarate, and thus along with glutamine synthetase (abbreviated GS) plays a central role in the regulation of nitrogen assimilation in photosynthetic eukaryotes and prokaryotes.

Leghemoglobin

Leghemoglobin (also leghaemoglobin or legoglobin) is a nitrogen or oxygen carrier, because naturally occurring oxygen and nitrogen interact similarly with this protein; and a hemoprotein found in the nitrogen-fixing root nodules of leguminous plants.

Molybdate

Nitrogen fixation requires molybdoenzymes in legumes (e.g., soybeans, acacia, etc.).

Samboja Lestari

As soil-forming pioneer trees the drought-resistant Sungkai (Peronema canessceus) and legumes such as Acacia mangium which fix nitrogen through symbiotic Rhizobium bacteria in their root nodules.


Agriculture in Mesoamerica

# Pinto bean - "painted/speckled" bean; nitrogen-fixer traditionally planted in conjunction with the "two sisters", maize and squash, to help condition soil; runners grew on maize

Azospirillum doebereinerae

Azospirillum doebereinerae is a species of nitrogen-fixing bacteria associated with the roots of Miscanthus species.

Casuarinaceae

The roots have nitrogen-fixing nodules that contain the soil actinomycete Frankia.

Frankia

Frankia is a genus of nitrogen fixing, filamentous bacteria that live in symbiosis with actinorhizal plants, similar to the Rhizobia bacteria that are found in the root nodules of legumes in the Fabaceae family.

Villa Gesell

In 1938 he learned about the Australian Acacia longifolia, which was well adapted to the sand and the saline winds, and increased the ratio of nitrogen fixation.


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