Campus Units

Botany

Document Type

Article

Publication Version

Published Version

Publication Date

1972

Journal or Book Title

Journal of Cell Science

Volume

11

First Page

339

Last Page

355

Abstract

The distribution and development of raphide crystal cells in nodulated leaves of Psychotria punctatawere studied by light and electron microscopy. Crystal cells in the leaf are oriented in various ways depending on whether they occur in the spongy or palisade parenchyma. Crystals are never found within the bacterial nodules and are not concentrated around them. Developing leaf crystal cells become larger than surrounding cells and have larger nuclei and nucleoli. Raphides develop within membrane chambers in the large central vacuole in association with membrane complexes, vesicles and tubules, the latter measuring 10-13 nm in diameter. Certain cytoplasmic organelles, the plasmalemma, and a cytoplasmic vacuolar channel complex also appear to be associated with crystal development. These results are compared with other recent investigations dealing with calcium oxalate crystals in higher plants.

Comments

This article is from Journal of Cell Science 11 (1972): 339. Posted with permission.

Copyright Owner

The Company of Biologists Ltd.

Language

en

File Format

application/pdf

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