Enhanced tobacco mosaic virus production and suppressed synthesis of a virus inhibitor in protoplasts exposed to antibiotics

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Year: 1983

Source of publication :Virology

Authors :

גרה, עבדאללה; לובנשטיין, גד; שבתאי, שרה.

Volume :127

Co-Authors:

Gera, A., Virus Laboratory, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Loebenstein, G., Virus Laboratory, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Shabtai, S., Virus Laboratory, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel

From page: 475

To page: 478

(Total pages: 4)

Link :Enhanced tobacco mosaic virus production and suppressed synthesis of a virus inhibitor in protoplasts exposed to antibiotics

Abstract:

Actinomycin D and chloramphenicol, when added up to 24 hr after inoculation, markedly increased tobacco mosaic virus (TMV) replication in protoplasts of Samsun NN, a cultivar in which the infection in the intact plant is localized. No increase was observed when TMV-infected protoplasts of Samsun, a systemic-responding cultivar, were incubated in the presence of these antimetabolites. Concomitant with the increase in virus replication in protoplasts of Samsun NN, production of the inhibitor of virus replication (IVR) (G. Loebenstein and A. Gera, Virology, 114, 132-139, 1981) from these protoplasts was suppressed almost completely. These results strengthen the suggestion that IVR is associated with the localizing mechanism by suppressing virus replication. © 1983.

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