某些（非仙人掌科）肉质植物物种中草酸钙生物矿物的特征。

Characterization of calcium oxalate biominerals in some (non-Cactaceae) succulent plant species.

机构信息

Centro de Química Inorgánica (CEQUINOR, CONICET/UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C. Correo 962, 1900 La Plata, Argentina.

出版信息

Z Naturforsch C J Biosci. 2010 Jul-Aug;65(7-8):429-32. doi: 10.1515/znc-2010-7-801.

DOI:10.1515/znc-2010-7-801

PMID:20737908

Abstract

The water-accumulating leaves of crassulacean acid metabolism plants belonging to five different families were investigated for the presence of biominerals by infrared spectroscopic and microscopic analyses. Spectroscopic results revealed that the mineral present in succulent species of Agavaceae, Aizoaceae, and Asphodelaceae was calcium oxalate monohydrate (whewellite, CaC2O4 x H2O). Crystals were predominantly found as raphides or solitary crystals of various morphologies. However, representative Crassulaceae members and a succulent species of Asteraceae did not show the presence of biominerals. Overall, these results suggest no correlation between calcium oxalate generation and crassulacean acid metabolism in succulent plants.

摘要

通过红外光谱和显微镜分析，研究了属于五个不同科的肉质植物的储水叶中是否存在生物矿物质。光谱结果表明，龙舌兰科、番杏科和天门冬科肉质物种中存在的矿物质是一水合草酸钙（一水合草酸钙，CaC2O4 x H2O）。晶体主要以针晶或各种形态的单晶形式存在。然而，代表性的景天科成员和菊科的一个肉质物种没有显示出生物矿物质的存在。总的来说，这些结果表明，在肉质植物中，草酸钙的产生与景天酸代谢之间没有相关性。