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Increase of tobacco mosaic virus multiplication and lesion size in hypersensitive hosts in the presence of chloramphenicol
Year:
1969
Source of publication :
Virology
Authors :
Loebenstein, Gad
;
.
Sela, B.
;
.
Van Praagh, Tirzah
;
.
Volume :
39
Co-Authors:
Sela, B., The Volcani Institute of Agricultural Research, Bet Dagan, Israel
Loebenstein, G., The Volcani Institute of Agricultural Research, Bet Dagan, Israel
Van Praagh, T., The Volcani Institute of Agricultural Research, Bet Dagan, Israel
Facilitators :
From page:
260
To page:
264
(
Total pages:
5
)
Abstract:
The size and extractable infectivity of local lesions incited by tobacco mosaic virus (TMV) on Nicotiana glutinosa L. leaves, and TMV multiplication in Cucumis sativus L. cotyledons, increased significantly in the presence of chloramphenicol. In cucumber cotyledons virus concentration increased 2 and 4 times when cotyledons were injected with 100 μg/ml or 200 μg/ml chloramphenicol, respectively, from 1 day before until 1 day after inoculation, even though the number of starch lesions was markedly reduced. Injections 2 days before or 3 days after inoculation did not affect virus concentration. In N. glutinosa leaves injected with chloramphenicol (200 μg/ml) 24 hours after inoculation, lesion size was more than 3 times greater than that of controls. Subsequent applications of the antibiotic were less effective. The increase in size of lesions in N. glutinosa was correlated with their extractable infectivity. We suggest that chloramphenicol applied near the time of inoculation partially inhibits the mechanism responsible for localizing infection in hypersensitive hosts. These results also strengthen our previous suggestion (Loebenstein et al., 1969) that the localizing mechanism which requires DNA-dependent RNA synthesis (sensitivity to actinomycin D) produces a substance(s), probably a protein (sensitivity to chloramphenicol), that is responsible for localizing the virus. © 1969.
Note:
Related Files :
biosynthesis
drug effect
Growth, Development and Aging
Plant Disease
Plant Diseases
Tobacco mosaic virus
virus replication
virus RNA
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More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29745
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:49
Scientific Publication
Increase of tobacco mosaic virus multiplication and lesion size in hypersensitive hosts in the presence of chloramphenicol
39
Sela, B., The Volcani Institute of Agricultural Research, Bet Dagan, Israel
Loebenstein, G., The Volcani Institute of Agricultural Research, Bet Dagan, Israel
Van Praagh, T., The Volcani Institute of Agricultural Research, Bet Dagan, Israel
Increase of tobacco mosaic virus multiplication and lesion size in hypersensitive hosts in the presence of chloramphenicol
The size and extractable infectivity of local lesions incited by tobacco mosaic virus (TMV) on Nicotiana glutinosa L. leaves, and TMV multiplication in Cucumis sativus L. cotyledons, increased significantly in the presence of chloramphenicol. In cucumber cotyledons virus concentration increased 2 and 4 times when cotyledons were injected with 100 μg/ml or 200 μg/ml chloramphenicol, respectively, from 1 day before until 1 day after inoculation, even though the number of starch lesions was markedly reduced. Injections 2 days before or 3 days after inoculation did not affect virus concentration. In N. glutinosa leaves injected with chloramphenicol (200 μg/ml) 24 hours after inoculation, lesion size was more than 3 times greater than that of controls. Subsequent applications of the antibiotic were less effective. The increase in size of lesions in N. glutinosa was correlated with their extractable infectivity. We suggest that chloramphenicol applied near the time of inoculation partially inhibits the mechanism responsible for localizing infection in hypersensitive hosts. These results also strengthen our previous suggestion (Loebenstein et al., 1969) that the localizing mechanism which requires DNA-dependent RNA synthesis (sensitivity to actinomycin D) produces a substance(s), probably a protein (sensitivity to chloramphenicol), that is responsible for localizing the virus. © 1969.
Scientific Publication
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