Aspects of sieve element ultrastructure in Primula obconica
- 1 January 1966
- journal article
- research article
- Published by Springer Nature in Planta
- Vol. 69 (4), 319-337
- https://doi.org/10.1007/bf00392283
Abstract
At maturity, the enucleate sieve element of Primula obconica is lined with a parietal layer of cytoplasm consisting of plasmalemma, one or more cisterna-like layers of endoplasmic reticulum, numerous mitochondria and plastids, and a membrane which apparently separates these cytoplasmic components from a large central cavity. The central cavity contains numerous longitudinally oriented slime tubules. We believe these tubules normally form strands which run the length of the cell and traverse consecutive cells through the sieve-plate pores. Developmental aspects are discussed.This publication has 24 references indexed in Scilit:
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