Comparative Pollen Wall Development of Welwitschia mirabilis and Selected Primitive Angiosperms

1991 ◽  
Vol 118 (3) ◽  
pp. 292 ◽  
Author(s):  
M. S. Zavada ◽  
N. Gabarayeva
Author(s):  
P. Dayanandan ◽  
P. B. Kaufman

A three dimensional appreciation of the guard cell morphology coupled with ultrastjuctural studies should lead to a better understanding of their still obscure dynamics of movement. We have found the SEM of great value not only in studies of the surface details of stomata but also in resolving the structures and relationships that exist between the guard and subsidiary cells. We now report the isolation and SEM studies of guard cells from nine genera of plants.Guard cells were isolated from the following plants: Psilotum nudum, four species of Equisetum, Cycas revoluta, Ceratozamia sp., Pinus sylvestris, Ephedra cochuma, Welwitschia mirabilis, Euphorbia tirucalli and Allium cepa.


Nature ◽  
1972 ◽  
Vol 237 (5355) ◽  
pp. 381-383 ◽  
Author(s):  
R. B. KNOX ◽  
R. R. WILLING ◽  
ANNE E. ASHFORD

PROTOPLASMA ◽  
1983 ◽  
Vol 118 (3) ◽  
pp. 230-233 ◽  
Author(s):  
R. Wiermann ◽  
K. Vieth
Keyword(s):  

2000 ◽  
Vol 87 (11) ◽  
pp. 1571-1577 ◽  
Author(s):  
R. C. Jackson ◽  
J. J. Skvarla ◽  
W. F. Chissoe
Keyword(s):  

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