Editing Magnesium (section)

===Function in plants===
Plants require magnesium to synthesize [[chlorophyll]], essential for [[photosynthesis]].<ref>{{Cite web |title=Magnesium |url=https://www.tfi.org/sites/default/files/tfi-magnesium.pdf |access-date=14 July 2023 |publisher=The Fertilizer Institute |archive-date=18 March 2023 |archive-url=https://web.archive.org/web/20230318010641/https://www.tfi.org/sites/default/files/tfi-magnesium.pdf |url-status=dead }}</ref> Magnesium in the center of the [[porphyrin ring]] in chlorophyll functions in a manner similar to the iron in the center of the porphyrin ring in [[heme]]. [[Magnesium deficiency (plants)|Magnesium deficiency]] in plants causes late-season yellowing between leaf veins,<ref>{{Cite web |date=2023-06-12 |title=What Is the Connection between Chlorophyll and Magnesium? |url=http://www.allthingsnature.org/what-is-the-connection-between-chlorophyll-and-magnesium.htm |access-date=2023-07-14 |website=All Things Nature |language=en-US}}</ref> especially in older leaves, and can be corrected by either applying epsom salts (which is rapidly leached), or crushed dolomitic limestone, to the soil.