אסיף מאגר המחקר החקלאי

Effect of 2,4-dichlorophenoxyacetic acid on multiplication of tobacco mosaic virus in protoplasts from local-lesion and systemic-responding tobaccos

Year:

1980

Source of publication :

Authors :

Volume :

100

Co-Authors:

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

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Abstract:

Tobacco mosaic virus (TMV) multiplication was markedly enhanced in protoplasts from Samsun NN and Xanthi-nc, two local-lesion-responding cultivars, by 2,4-dichlorophenoxyacetic acid (2,4-D) added to the incubation medium after inoculation of the protoplasts. In Samsun, a cultivar which reacts systemically to TMV infection, 2,4-D reduced virus multiplication. These findings may explain the discrepancy observed between the low virus multiplication in intact tobaccos with the N gene and the high titers reached in protoplasts from these plants (in the presence of 2,4-D), which were similar to those found in protoplasts from a systemic cultivar. © 1980 Academic Press, Inc.

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