+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Surface Configuration of the Lorica of the Euglenoid Trachelomonas as Revealed with Scanning Electron Microscopy

Surface Configuration of the Lorica of the Euglenoid Trachelomonas as Revealed with Scanning Electron Microscopy

American Journal of Botany 62(1): 48-57

The surface of Trachelomonas was examined readily with SEM at magnifications up to X 20,000 in unfixed or fixed material. Cells were placed directly on specimen holders without washing, air dried, and coated with aluminum or gold. Clones of T. grandis, T. hispida var. coronata, and T. oblonga var. punctata and three species from a natural collection showed the following features: the lorica was punctate or solid, and the surface projections, when present, consisted of minute papillae (0.1 μm), larger, often globose papillae (up to 0.8 μm), and spines which tapered to a point or which had parallel sides and ended bluntly; spines appeared hollow or solid. Pringsheim's clone of T. oblonga var. punctata, which he described as a new spineless variety, possessed short tapering spines and globose papillae. Such observations suggest that a major problem in delimiting species may be in discovering the ornamentation potential of a clone. The discovery of new features of the lorica (e.g., minute papillae and hollow projections), the clarification of shapes of surface features, and, in general, the excellent resolution at 10 times the usable magnification of light microscopy dictate a reexamination of known species with SEM. We suggest that a SEM study of the variation in the lorica surface in clonal material will lead to a recognition of polymorphism and eventually to a clearer understanding of taxonomic entities described from natural collections.

(PDF emailed within 0-6 h: $19.90)

Accession: 065547210

Download citation: RISBibTeXText

PMID: 30139098

DOI: 10.1002/j.1537-2197.1975.tb12337.x

Related references

Surface configuration of the lorica of the euglenoid Trachelomonas as revealed with scanning electron microscopy. American journal of botany: 62 (1) 48-57, 1975

Comparative effects of specimen preparation for scanning electron microscopy on lorica morphology in trachelomonas. Journal of Phycology 10(SUPPL):, 1974

Morphology of the lorica of 3 species of the euglenoid trachelomonas. Journal of Phycology 9(SUPPL): 18, 1973

Ultrastructure of the lorica of some trachelomonas euglenophytes under the scanning electron microscope. Cryptogamie Algologie 1(4): 311-320, 1980

The fine structure of the bursa of Fabricius: 'B' cell surface configuration and lymphoepithelial organization as revealed by scanning and transmission electron microscopy. Journal of the Reticuloendothelial Society 16(5): 300-311, 1974

Scanning electron microscopy 1977 vol 1 proceedings of the 10th annual scanning electron microscope symposium and workshops on materials and component characterization quality control with the scanning electron microscopy scanning transmission electron microscopy scanning electron microscopy application to semi conductors analytical electron microscopy biological specimen preparation for scanning electron microscopy chicago illinois usa march 28 april 1 1977. Scanning Electron Microscopy 784, 1977

Morphological separation of the euglenoid genera Trachelomonas and Strombomonas (Euglenophyta) based on lorica development and posterior strip reduction. Journal of Phycology 41(3): 590-605, 2005

The fine structure of the bursa of fabricius bone marrow derived lymphocyte cell surface configuration and lympho epithelial organization as revealed by scanning and transmission electron microscopy. Res Journal Of The Reticuloendothelial Society: 300-311, 1974

Shape size and surface topography of genital organs of urogonimus macrostomus digenea revealed by light microscopy and scanning electron microscopy. Zeitschrift fuer Parasitenkunde 54(3): 299-308, 1977

The fine structure of fenestrated adrenocortical capillaries revealed by in-lens field-emission scanning electron microscopy and scanning transmission electron microscopy. Scanning 19(5): 361-367, 1997

Meeting of the Swiss Society for Optics and Electron Microscopy, the Austrian Society for Electron Microscopy, 28th Meeting of the German Society for Electron Microscopy including workgroups on cryo-electron microscopy and scanning tunneling microscopy as well as the 30th Colloquium of the Workgroup for Electron Microscopy Imaging and Analysis of Surface Microscopy, Regensburg, Germany, September 8-12, 1997. European Journal of Cell Biology 74(SUPPL 45): 3-134, 1997

A comparison of two species of Trachelomonas Euglenophyceae with scanning electron microscopy. Journal of the Tennessee Academy of Science, 623: 72-75, 1987

Some surface features of stentor as revealed by scanning electron microscopy. Transactions of the American Microscopical Society 95(3): 400-402, 1976

The surface features of Hydra as revealed by scanning electron microscopy. Transactions American Microsc Soc, 922: 161-175, 1973

Surface features of a ciliate stentor revealed by scanning electron microscopy. Journal of Protozoology 22(3): 8A, 1975