# Nitrogen requirements of microorganisms

**URL:** <https://scientistsolutions.discourse.group/t/nitrogen-requirements-of-microorganisms/795>\
**Category:** Mycology\
**Created:** [January 18, 2025, 7:31am UTC](https://scientistsolutions.discourse.group/t/nitrogen-requirements-of-microorganisms/795 "2025-01-18T07:31:59Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Nishan1618](https://avatars.discourse-cdn.com/v4/letter/n/f07891/32.png) [@Nishan1618](https://scientistsolutions.discourse.group/u/Nishan1618)\
**Post date:** [January 18, 2025, 7:31am UTC](https://scientistsolutions.discourse.group/t/nitrogen-requirements-of-microorganisms/795/1 "2025-01-18T07:31:59Z")

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Hi, I know that some microorganisms can get their nitrogen requirements met with inorganic substances such as nitrate salts or urea. Others need organic nitrogen sources such as peptones or amino acids. I am looking for some rules of thumb along these lines, e.g. “most fungi can be cultured with nitrates” or “gram-positive bacteria usually require amino acids”. Any little bit of information you can offer could help. Thanks