OCCURRENCE AND DEVELOPMENT OF A FILIFORM APPARATUS IN THE EGG OF PLUMBAGO CAPENSIS
- 1 March 1972
- journal article
- research article
- Published by Wiley in American Journal of Botany
- Vol. 59 (3) , 279-283
- https://doi.org/10.1002/j.1537-2197.1972.tb10093.x
Abstract
Micropylar wall extensions in the egg of Plumbago capensis arise as small pegs of periodic acid‐Schiff's‐positive material soon after the egg is organized. These inward projections of egg wall increase in size, becoming extensive near anthesis. Some branching of the filiform apparatus occurs. In mature embryo sacs the micropylar portion, with the lowermost portion of the egg included, becomes entrenched in the nucellus. The possible significance of this “gametic transfer cell” is discussed in relation to the apparent absence of synergids from the reduced embryo sac of Plumbago.Funding Information
- National Research Council of Canada (A6103)
This publication has 30 references indexed in Scilit:
- Function of transfer cells in the nodal regions of stems, particularly in relation to the nutrition of young seedlingsProtoplasma, 1970
- Vascular transfer cells in Angiosperm leaves A taxonomic and morphological surveyProtoplasma, 1969
- ?Transfer cells? Plant cells with wall ingrowths, specialized in relation to short distance transport of solutes?Their occurrence, structure, and developmentProtoplasma, 1969
- SPECIALIZED "TRANSFER CELLS" IN MINOR VEINS OF LEAVES AND THEIR POSSIBLE SIGNIFICANCE IN PHLOEM TRANSLOCATIONThe Journal of cell biology, 1968
- Protein staining of ribboned epon sections for light microscopyHistochemistry and Cell Biology, 1968
- Haploid-Diploid Twin Embryos in Lilium and NicotianaAmerican Journal of Botany, 1943
- Some Aspects of Fertilization in VallisneriaAmerican Journal of Botany, 1941
- Development of the Embryo Sac of Plumbagella micranthaAmerican Journal of Botany, 1939
- Ovule and Embryo Sac of Plumbago capensisBotanical Gazette, 1934
- Sperms of Vallisneria SpiralisBotanical Gazette, 1923