Frontiers in Biology

, Volume 7, Issue 3, pp 254–266

Plant calcium oxalate crystal formation, function, and its impact on human health


DOI: 10.1007/s11515-012-1224-0

Cite this article as:
Nakata, P.A. Front. Biol. (2012) 7: 254. doi:10.1007/s11515-012-1224-0


Crystals of calcium oxalate have been observed among members from most taxonomic groups of photosynthetic organisms ranging from the smallest algae to the largest trees. The biological roles for calcium oxalate crystal formation in plant growth and development include high-capacity calcium regulation, protection against herbivory, and tolerance to heavy metals. Using a variety of experimental approaches researchers have begun to unravel the complex mechanisms controlling formation of this biomineral. Given the important roles for calcium oxalate formation in plant survival and the antinutrient and pathological impact on human health through its presence in plant foods, researchers are avidly seeking a more comprehensive understanding of how these crystals form. Such an understanding will be useful in efforts to design strategies aimed at improving the nutritional quality and production of plant foods.


calcium oxalate crystals biomineral idioblast nutrition 


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Copyright information

© Higher Education Press and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.USDA-ARS Children’s Nutrition Research Center, Department of PediatricsBaylor College of MedicineHoustonUSA

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