Comparative Pollen Wall Development of Welwitschia mirabilis and Selected Primitive Angiosperms

1991 ◽  
Vol 118 (3) ◽  
pp. 292 ◽  
Author(s):  
M. S. Zavada ◽  
N. Gabarayeva
Keyword(s):  
Pollen Wall ◽  
Primitive Angiosperms ◽  
Welwitschia Mirabilis

A Scanning Electron Microscope Study of Isolated Guard Cells

1973 ◽  
Vol 31 ◽  
pp. 454-455 ◽  
Author(s):  
P. Dayanandan ◽  
P. B. Kaufman
Keyword(s):  
Electron Microscope ◽  
Electron Microscope Study ◽  
Three Dimensional ◽  
Guard Cells ◽  
Scanning Electron Microscope Study ◽  
Psilotum Nudum ◽  
Subsidiary Cells ◽  
Welwitschia Mirabilis ◽  
Cycas Revoluta ◽  
Scanning Electron

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.

Role of Pollen-Wall Proteins as Recognition Substances in Interspecific Incompatibility in Poplars

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

Outer pollen wall, an important accumulation site for flavonoids

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

A unique pollen wall mutation in the family Compositae: ultrastructure and genetics

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