Electron microscope study of vegetative cell division in two species of Marchanda

1978 ◽  
Vol 56 (5) ◽  
pp. 467-475 ◽  
Author(s):  
Larry C. Fowke ◽  
Jeremy D. Pickett-Heaps
Keyword(s):  
Electron Microscope ◽  
Cell Division ◽  
Microscope Study ◽  
Vegetative Cell ◽  
Electron Microscope Study ◽  
Higher Plants ◽  
Cell Plate ◽  
Early Prophase ◽  
Higher Plant ◽  
Spindle Microtubules

Cell division in Marehantia polymorpha and M. berteroana was examined with the electron microscope. Distinct preprophase bands of microtubules, typical of higher plants, were not observed. Most of the spindle microtubules in early prophase appeared to insert into polar MTOC's. The behaviour of the nuclear envelope, nucleolus, and chromosomes was typical of higher plant divisions. Cytokinesis was accomplished by centrifugal cell plate growth in a phragmoplast. Numerous coated vesicles were associated with the developing cell plate.

Ultrastructure of Plant Leaf Tissue Infected with Mite-Borne Viral-Like Pathogens

1970 ◽  
Vol 28 ◽  
pp. 178-179 ◽  
Author(s):  
O. E. Bradfute ◽  
R. E. Whitmoyer ◽  
L. R. Nault
Keyword(s):  
Triticum Aestivum ◽  
Zea Mays ◽  
Electron Microscope ◽  
Hordeum Vulgare ◽  
Microscope Study ◽  
Electron Microscope Study ◽  
Leaf Tissue ◽  
Leaf Ultrastructure ◽  
Double Membrane ◽  
Aceria Tulipae

A pathogen transmitted by the eriophyid mite, Aceria tulipae, infects a number of Gramineae producing symptoms similar to wheat spot mosaic virus (1). An electron microscope study of leaf ultrastructure from systemically infected Zea mays, Hordeum vulgare, and Triticum aestivum showed the presence of ovoid, double membrane bodies (0.1 - 0.2 microns) in the cytoplasm of parenchyma, phloem and epidermis cells (Fig. 1 ).

Electron microscope study of the microgranules in human vaginal epithelium

1978 ◽  
Vol 36 (2) ◽  
pp. 568-569
Author(s):  
A. Campos ◽  
J. Vilches ◽  
J. Gomez
Keyword(s):  
Electron Microscope ◽  
Microscope Study ◽  
Intercellular Space ◽  
Electron Microscope Study ◽  
Vaginal Epithelium ◽  
Vaginal Mucosa ◽  
Secretory Phase ◽  
Cervical Epithelium ◽  
Keratinized Epithelium ◽  
Fertile Women

Microgranules have been described with different names in keratinized and in nonkeratinized epithelium. In keratinized epithelium it seems clear that the microgranules are lamellated bodies bounded by a membrane which empty their contents into the intercellular space. Their existence in nonkeratinized epithelium is more debatable. Until now the so-called microgranules have been described in nonkeratinized bucal, lingual and cervical epithelium. In the present work we describe the morphology and nature of such structures in human vaginal epithelium.Biopsies from the midlevel of the vaginal mucosa were taken from voluntary fertile women. The specimens were divided into three groups with four vaginal specimens. The first group was obtained in the folicular phase; those of the second in the postovulatory phase and, finally, the last group corresponded to the secretory phase.

Structure of Fibrinogen and its Derivatives: An Electron Microscope Study

1979 ◽  
Vol 41 (04) ◽  
pp. 655-661 ◽  
Author(s):  
L Tranqui ◽  
M H Prandini ◽  
M Suscillon
Keyword(s):  
Electron Microscope ◽  
Microscope Study ◽  
Electron Microscope Study

Electron Microscope Study on the Arterio-Venous Anastomoses and the Glomus Tumors

1980 ◽  
Vol 42 (2) ◽  
pp. 255-268 ◽  
Author(s):  
Shuhei IMAYAMA ◽  
Hiromu KOHDA ◽  
Harukuni URABE
Keyword(s):  
Electron Microscope ◽  
Microscope Study ◽  
Electron Microscope Study ◽  
Glomus Tumors

Scanning Electron Microscope Study of Root Canal Filling (First Report)

1987 ◽  
Vol 41 (6) ◽  
pp. 1238-1243
Author(s):  
Yohichiroh Soh ◽  
Junroh Tahara ◽  
Takashi Hayashikawa ◽  
Masatoshi Hitaka ◽  
Kohzoh Kubota ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Root Canal ◽  
Microscope Study ◽  
Electron Microscope Study ◽  
Root Canal Filling ◽  
Scanning Electron Microscope Study ◽  
First Report ◽  
Scanning Electron
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