Comparative morphology and taxonomic value of foliar sclereids inLimonium tour. (Limoniaceae)

1981 ◽  
Vol 90 (2) ◽  
Author(s):  
T Ananda Rao ◽  
Silpi Das
Keyword(s):  
Comparative Morphology ◽  
Foliar Sclereids

Comparative Morphology of Intercellular Bridges Between Developing Germ Cells of the Ovary

1970 ◽  
Vol 28 ◽  
pp. 328-329
Author(s):  
J. R. Ruby ◽  
R. F. Dyer ◽  
R. G. Skalko ◽  
R. F. Gasser ◽  
E. P. Volpe
Keyword(s):  
Germ Cells ◽  
Rana Pipiens ◽  
Comparative Morphology ◽  
Dense Material ◽  
Individual Species ◽  
Microscope Examination ◽  
Electron Dense Material ◽  
Intercellular Bridges ◽  
Cytoplasmic Side ◽  
Intercellular Connections

An electron microscope examination of fetal ovaries has revealed that developing germ cells are connected by intercellular bridges. In this investigation several species have been studied including human, mouse, chicken, and tadpole (Rana pipiens). These studies demonstrate that intercellular connections are similar in morphology regardless of the species.Basically, all bridges are characterized by a band of electron-dense material on the cytoplasmic side of the tri-laminar membrane surrounding the connection (Fig.l). This membrane is continuous with the plasma membrane of the conjoined cells. The dense material, however, never extends beyond the limits of the bridge. Variations in the configuration of intercellular connections were noted in all ovaries studied. However, the bridges in each individual species usually exhibits one structural characteristic seldom found in the others. For example, bridges in the human ovary very often have large blebs projecting from the lateral borders whereas the sides of the connections in the mouse gonad merely demonstrate a slight convexity.

Comparative morphology of Pneumocystis Carinii in Situ and after bronchoalveolar lavage

1986 ◽  
Vol 44 ◽  
pp. 244-245
Author(s):  
C. A. Itatani ◽  
A. Hing ◽  
W. Jackson ◽  
G.J. Marshall
Keyword(s):  
Bronchoalveolar Lavage ◽  
Pneumocystis Carinii ◽  
Comparative Morphology

Pneumocystis carinii (PC) is an organism capable of causing fatal pneumonia in immune suppressed individuals and has recently gained prominence because of its association with AIDS. A similar organism occurs in rats and infection may be induced with cortisone injections. In order to isolate PC for further study bronchoal veol ar lavage (BAL) was performed. Differences in the ul trastructure of BAL-obtained organisms and PC in situ were observed and are herein reported.

Comparative Morphology of Skeletal Muscles in Man and Macaque

1993 ◽  
Vol 5 (2) ◽  
pp. 137-146
Author(s):  
Seiichiro INOKUCHI ◽  
Tadanao KIMURA ◽  
Masataka SUZUKI ◽  
Junji ITO ◽  
Hiroo KUMAKURA
Keyword(s):  
Skeletal Muscles ◽  
Comparative Morphology

COMPARATIVE MORPHOLOGY OF TEETH GROWN FROM EMBRYONIC GERMS BY HETERO- AND HOMOTOPIC TRANSPLANTATION IN EXPERIMENTAL STUDY

2018 ◽  
Vol 27 (3) ◽  
pp. 35-41
Author(s):  
O.O. Yanushevich ◽  
◽  
I.Y. Malyshev ◽  
O.V. Zayratyants ◽  
A.V. Zhuravlyeva ◽  
...  
Keyword(s):  
Experimental Study ◽  
Comparative Morphology
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