On the presence of extracellular calcium oxalate ...
|Title||On the presence of extracellular calcium oxalate crystals on the inflorescences of Araceae|
|Author(s)||Denis Barabe, Christian R. Lacroix, Mathieu Chouteau, Marc Gibernau|
|Journal||Botanical Journal of the Linnean Society|
|Abstract||This study presents a survey of the species of the Araceae where extracellular production of calcium oxalate crystals has been observed and discusses the patterns of production of the crystals in different genera. For all Araceae studied using SEM, the oxalate crystals exuding on the epidermal surface correspond to extended aggregate/druses or crystal sand and the oxalate crystals mixed with pollen correspond to raphides or styloids (prismatic crystals). The type of crystals associated with pollen varies among genera. However, the presence of crystals associated with pollen is a specific rather than a generic characteristic. Our results show that the presence of raphides mixed with pollen seems to be a widespread phenomenon in the aroid family.|
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