Abstract
Highly basophilic plate-shaped regions from oocytes of the surf clam have been examined with the electron microscope. The regions are composed of flat, hollow vesicles perforated by pores arranged, in surface view, in a hexagonal pattern. Cross-sections of this structure show a periodicity consisting of loops (cross-sections of the continuous space within the vesicle) alternating with spaces partly filled with dense material (pores). These structures are shown to resemble closely, the nuclear envelope. Similarities to and differences from basophilic regions of other cells are discussed and it is suggested that the small granules of Palade (38) are represented by granules composing the walls of the annuli of the nuclear envelope and assumed to be present in the annuli of the vesicles. Because of differences in the structure of these regions from basophilic regions of other cells, the name periodic lamellae is suggested since the structures show periodically repeating substructures (annuli) in both cross-sections and surface views.
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Selected References
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- BAHR G. F., BEERMANN W. The fine structure of the nuclear membrane in the larval salivary gland and midgut of Chironomus. Exp Cell Res. 1954 May;6(2):519–522. doi: 10.1016/0014-4827(54)90200-1. [DOI] [PubMed] [Google Scholar]
- BAIRATI A., LEHMANN F. E. Uber die subroikroskopische Struktur der Kernmembran bei Amoeba proteus. Experientia. 1952 Feb 15;8(2):60–62. doi: 10.1007/BF02139020. [DOI] [PubMed] [Google Scholar]
- BERNHARD W., GAUTIER A., ROUILLER C. La notion de microsomes et le problème de la basophilie cytoplasmique; étude critique et expérimentale. Arch Anat Microsc Morphol Exp. 1954;43(3):236–275. [PubMed] [Google Scholar]
- CALLAN H. G., TOMLIN S. G. Experimental studies on amphibian oocyte nuclei. I. Investigation of the structure of the nuclear membrane by means of the electron microscope. Proc R Soc Lond B Biol Sci. 1950 Oct 13;137(888):367–378. doi: 10.1098/rspb.1950.0047. [DOI] [PubMed] [Google Scholar]
- DALTON A. J. Electron micrography of epithelial cells of the gastro-intestinal tract and pancreas. Am J Anat. 1951 Jul;89(1):109–133. doi: 10.1002/aja.1000890105. [DOI] [PubMed] [Google Scholar]
- DALTON A. J., FELIX M. D. Cytologic and cytochemical characteristics of the Golgi substance of epithelial cells of the epididymis in situ, in homogenates and after isolation. Am J Anat. 1954 Mar;94(2):171–207. doi: 10.1002/aja.1000940202. [DOI] [PubMed] [Google Scholar]
- ELIAS H., COHEN T. Geometrical analysis of inclusions in rat liver cells as seen in electronmicrograms. Z Zellforsch Mikrosk Anat. 1955;41(5):407–420. doi: 10.1007/BF00345352. [DOI] [PubMed] [Google Scholar]
- FAHMY O. G. Oogenesis in the desert snail Eremina desertorum with special reference to vitellogenesis. Q J Microsc Sci. 1949 Jun;90(Pt 2)(2):159–181. [PubMed] [Google Scholar]
- FAUTREZ J. La distribution de l'acide ribonucleique au cours du grand accroissement de l'oocyte chez Pholcus phalangioides (Fuessl). C R Seances Soc Biol Fil. 1950 Aug;144(15-16):1129–1130. [PubMed] [Google Scholar]
- GALL J. G. Observations on the nuclear membrane with the electron microscope. Exp Cell Res. 1954 Aug;7(1):197–200. doi: 10.1016/0014-4827(54)90054-3. [DOI] [PubMed] [Google Scholar]
- HARRIS P., JAMES T. W. Electron microscope study of the nuclear membrane of Amoeba proteus in thin section. Experientia. 1952 Oct 15;8(10):384–385. doi: 10.1007/BF02176196. [DOI] [PubMed] [Google Scholar]
- HARTMANN J. F. An electron optical study of sections of central nervous system. J Comp Neurol. 1953 Aug;99(1):201–249. doi: 10.1002/cne.900990111. [DOI] [PubMed] [Google Scholar]
- KAUTZ J., DE MARSH Q. B. Fine structure of the nuclear membrane in cells from the chick embryo: on the nature of the socalled "pores" in the nuclear membrane. Exp Cell Res. 1955 Apr;8(2):394–396. doi: 10.1016/0014-4827(55)90149-x. [DOI] [PubMed] [Google Scholar]
- PALADE G. E., PORTER K. R. Studies on the endoplasmic reticulum. I. Its identification in cells in situ. J Exp Med. 1954 Dec 1;100(6):641–656. doi: 10.1084/jem.100.6.641. [DOI] [PMC free article] [PubMed] [Google Scholar]
- PALAY S. L., PALADE G. E. The fine structure of neurons. J Biophys Biochem Cytol. 1955 Jan;1(1):69–88. doi: 10.1083/jcb.1.1.69. [DOI] [PMC free article] [PubMed] [Google Scholar]
- PORTER K. R., BLUM J. A study in microtomy for electron microscopy. Anat Rec. 1953 Dec;117(4):685–710. doi: 10.1002/ar.1091170403. [DOI] [PubMed] [Google Scholar]
- PORTER K. R. Electron microscopy of basophilic components of cytoplasm. J Histochem Cytochem. 1954 Sep;2(5):346–375. doi: 10.1177/2.5.346. [DOI] [PubMed] [Google Scholar]
- PORTER K. R. Observations on a submicroscopic basophilic component of cytoplasm. J Exp Med. 1953 May;97(5):727–750. doi: 10.1084/jem.97.5.727. [DOI] [PMC free article] [PubMed] [Google Scholar]
- SJOSTRAND F. S., HANZON V. Membrane structures of cytoplasm and mitochondria in exocrine cells of mouse pancreas as revealed by high resolution electron microscopy. Exp Cell Res. 1954 Nov;7(2):393–414. doi: 10.1016/s0014-4827(54)80086-3. [DOI] [PubMed] [Google Scholar]
- WATSON M. L. Pores in the mammalian nuclear membrane. Biochim Biophys Acta. 1954 Dec;15(4):475–479. doi: 10.1016/0006-3002(54)90004-9. [DOI] [PubMed] [Google Scholar]
- WATSON M. L. The nuclear envelope; its structure and relation to cytoplasmic membranes. J Biophys Biochem Cytol. 1955 May 25;1(3):257–270. doi: 10.1083/jcb.1.3.257. [DOI] [PMC free article] [PubMed] [Google Scholar]
- WITTEK M. La vitellogénèse chez les amphibiens. Arch Biol (Liege) 1952;58(2):133–198. [PubMed] [Google Scholar]
