Assay of tobacco mosaic virus in bean leaves expanded under far-red light

Virology ◽  
1971 ◽  
Vol 46 (2) ◽  
pp. 464-469
Author(s):  
Katie Helms
Nature ◽  
1962 ◽  
Vol 193 (4816) ◽  
pp. 656-658 ◽  
Author(s):  
V. SANTILLI ◽  
C. M. NEPOKROEFF ◽  
N. C. GAGLIARDI

Author(s):  
Irwin Bendet ◽  
Nabil Rizk

Preliminary results reported last year on the ion etching of tobacco mosaic virus indicated that the diameter of the virus decreased more rapidly at 10KV than at 5KV, perhaps reaching a constant value before disappearing completely.In order to follow the effects of ion etching on TMV more quantitatively we have designed and built a second apparatus (Fig. 1), which incorporates monitoring devices for measuring ion current and vacuum as well as accelerating voltage. In addition, the beam diameter has been increased to approximately 1 cm., so that ten electron microscope grids can be exposed to the beam simultaneously.


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