Crystal Morphology and 13Carbon/12Carbon Composition of Solid Oxalate in Cacti | Zendy

E. R. Rivera | Zendy; Bruce N. Smith | Zendy

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Crystal Morphology and ¹³Carbon/¹²Carbon Composition of Solid Oxalate in Cacti

Author(s) -

E. R. Rivera,

Bruce N. Smith

Publication year - 1979

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.64.6.966

Subject(s) - carbon fibers , oxalate , crystal (programming language) , morphology (biology) , chemistry , crystallography , materials science , inorganic chemistry , biology , composite number , composite material , genetics , computer science , programming language

Morphology, crystal structure, and carbon isotopic composition of calcium oxalate from representative species from the family Cactaceae were determined using scanning electron microscopy, x-ray diffraction, and isotope ratio mass spectrometry. Crystals from one species in the Opuntieae tribe of the Cactaceae were druses with acute points composed of the monohydrate form of calcium oxalate (whewellite). Crystals from three species in the Cereeae tribe were the dihydrate form of calcium oxalate (weddellite) forming druses made up of tetragonal and isodiametric crystallites. The oxalate was relatively enriched in (13)C isotope (-7.3 to - 8.7 per thousand) compared with woody fibers (-13.3 to 14.1 per thousand) from the same plants.

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