scholarly journals Characterization of living normal and leukemic mouse lymphocytes by fluorescein diacetate.

1981 ◽  
Vol 29 (4) ◽  
pp. 503-510 ◽  
Author(s):  
J Szöllösi ◽  
P Kertai ◽  
B Somogyi ◽  
S Damjanovich
1994 ◽  
Vol 39 (2) ◽  
Author(s):  
JenniferL. Nargi ◽  
TerryA. Woodford-Thomas

1985 ◽  
Vol 63 (11) ◽  
pp. 1936-1941 ◽  
Author(s):  
B. L. Illman ◽  
E. J. Pell

Ozone response of Solanum tuberosum L. leaf protoplasts was characterized to better understand the cellular effects of this important air pollutant. 'Norchip' and 'Cherokee' potato cultivars relatively tolerant of and sensitive to ozone, respectively, were studied. Protoplasts were exposed to ozone, air, or oxygen for 0, 1, 3, 5, 10, or 15 min. Two criteria, lysis and fluorescein diacetate staining, were used to measure protoplast response. Protoplasts exposed to ozone exhibited a significant increase in lysis and reduction in fluorescein diacetate staining during the first 10 min of exposure. During the following 5 min there were no further significant changes in lysis or fluorescein diacetate staining. The two ozone responses paralleled each other, probably reflecting two different nonsequential cellular effects. Neither oxygen nor air elicited the protoplast responses observed after ozone exposure. The relative differences in ozone response observed in intact plants of 'Norchip' and 'Cherokee' were not observed in experiments performed with protoplasts of these cultivars. The experimental results reported herein illustrate the importance of the plasma membrane to the ozone response but do not support its role in explaining the differential tolerance of the two potato cultivars studied.


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